valves

Edward ValvesA

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EV-1004th Edition Introduction

Forged Steel Valves

Cast Steel Valves

Special Application Valves

Nuclear Application Valves

Accessories/Actuators

Technical

Tables & Charts

Maintenance

Table of Contents

Page No.

Figure Number Index . . . . . . . . . . . . . III

Forged Steel Availability Chart . . . . . . . . . . . . . . . . . IV

Cast Steel Availability Chart . . . . . . . . V

Description of Figure Number System . . . . . . . . . . . . . . . . . . VI

Accessories/Acutators Page No.

Accessories. . . . . . . . . . . . . . . . . . . . . . . . . . . . F-2Actuators. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . F-5

Technical Section:1.0 Stop and Check Valve

Application Guide. . . . . . . . . . . . . . . . . . . G-41.1 Stop Valve Applications . . . . . . . . . . . . . . G-41.2 Check Valve Appications . . . . . . . . . . . . . G-101.3 Check & Stop-Check Valve

Installation Guidelines . . . . . . . . . . . . . . . G-141.4 Check Valve Performance . . . . . . . . . . . . G-19

2.0 Flow Performance . . . . . . . . . . . . . . . . . . G-232.1 Choose the Best Valve Size for Your . . .

Service Conditions . . . . . . . . . . . . . . . . . . G-232.2 Basic Calculations . . . . . . . . . . . . . . . . . . G-232.3 Corrections Required with

Large Pressure Drops . . . . . . . . . . . . . . . G-262.4 Check Valve Sizing. . . . . . . . . . . . . . . . . . G-282.5 Pipe Reducer Coefficients . . . . . . . . . . . . G-30

3.0 EDWARD VALVES DesignStandards & Features . . . . . . . . . . . . . . . G-59

3.1 Codes and Standards. . . . . . . . . . . . . . . . G-593.2 Pressure Ratings . . . . . . . . . . . . . . . . . . . G-593.3 Pressure-Seal Construction. . . . . . . . . . . G-603.4 Hardfacing . . . . . . . . . . . . . . . . . . . . . . . . G-613.5 Valve-Stem Packing . . . . . . . . . . . . . . . . . G-61

4.0 Misc. Technical Data . . . . . . . . . . . . . . . . G-62

Tables and ChartsConversion of Measurements. . . . . . . . . . . . . . G-58Material Specifications . . . . . . . . . . . . . . . . . . . H-2Pressure/Temperature Ratings . . . . . . . . . . . . . H-3End Preparations . . . . . . . . . . . . . . . . . . . . . . . H-29

MaintenanceMaintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . J-2

Introduction Page No.

History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2

Forged Steel ValvesUnivalve Features . . . . . . . . . . . . . . . . . . . . . . . B-2Bolted Bonnet Features . . . . . . . . . . . . . . . . . . B-6Class 600 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-8Class 800 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-11Class 1690 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-15Class 2680 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-18Class 4500 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-21

Cast Steel ValvesFlite-Flow Features . . . . . . . . . . . . . . . . . . . . . . C-2Stop-Check Features. . . . . . . . . . . . . . . . . . . . . C-4Check Features . . . . . . . . . . . . . . . . . . . . . . . . . C-5Tilting Disk Features . . . . . . . . . . . . . . . . . . . . . C-6Equiwedge Gate Features. . . . . . . . . . . . . . . . . C-8Class 300 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-11Class 400 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-17Class 600 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-20Class 700 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-28Class 900 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-31Class 1100 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-40Class 1500 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-43Class 1800 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-53Class 2500 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-56Class 2900 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-65Series 4500 . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-68

Special Application ValvesFeatures. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-2Blow Off Valves . . . . . . . . . . . . . . . . . . . . . . . . . D-4Elbow Down Valves. . . . . . . . . . . . . . . . . . . . . . D-9Hydraulic Valves . . . . . . . . . . . . . . . . . . . . . . . . D-10Series 1500 . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-12Strainers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-18Flanged 1500 Univalves . . . . . . . . . . . . . . . . . . D-19PressurCombo . . . . . . . . . . . . . . . . . . . . . . . . . D-20Hermavalve (Commercial). . . . . . . . . . . . . . . . . D-24

NuclearFeatures. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-2Hermavalve . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-4Univalve. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-8Bolted Bonnet . . . . . . . . . . . . . . . . . . . . . . . . . . E-10Gas-Hydraulic Actuators. . . . . . . . . . . . . . . . . . E-13Controlled Closure . . . . . . . . . . . . . . . . . . . . . . E-14

Edward Valves • 1900 South Saunders Street, Raleigh, North Carolina 27603 • 1-800-225-6989 • 1-919-832-0525 • Fax 1-919-831-3369 ii

Figure Number Index*

Edward Valves • 1900 South Saunders Street, Raleigh, North Carolina 27603 • 1-800-225-6989 • 1-919-832-0525 • Fax 1-919-831-3369 iii

158 D-10

158Y D-10

160 D-11

160Y D-11

238 D-18

238Y D-18

303 C-13

303Y C-13

304 C-13

304Y C-13

318 C-11

318Y C-11

319 C-11

319Y C-11

329 C-11

329Y C-11

338 D-18

338Y D-18

391 C-15

391Y C-15

394 C-15

394Y C-15

393 C-15

393Y C-15

• 602 C-25

• 602Y C-25, 29

604 C-24

604Y C-24

605 C-24

605Y C-24

606 C-24

606Y C-24

607 C-24

• 607Y C-24

• 614 C-21

• 614Y C-21, 28

616 C-20

616Y C-20

617 C-20

• 617Y C-20

618 C-20

618Y C-20

619 C-20

619Y C-20

• 670Y C-26, 27

690 C-26

690Y C-26

691 C-26

691Y C-26

• 692 C-26, 27

• 692Y C-26, 27, 30

694 C-26

694Y C-26

695 C-26

695Y C-26

• 702Y C-25, 29

706Y C-24

707Y C-24

• 714Y C-21, 28

716Y C-20

717Y C-20

• 770Y C-26, 27

• 792Y C-26, 27, 30

794Y C-26

795Y C-26

• 828 B-8

• 829 B-8

832 B-14

832Y B-14

• 838 B-13

• 838Y B-13

• 846 B-9

• 847 B-9

• 848 B-11

• 848Y B-11

• 849 B-11

• 849Y B-11

• 858 B-10

• 868 B-12

• 868Y B-12

• 869 B-12

• 869Y B-12

• 970Y C-37, 38

1028 D-12

1029 D-12

1032 D-17

1032Y D-17

1038 D-16

1038Y D-16

1046 D-14

1047 D-14

1048 D-13

1048Y D-13

1049 D-13

1049Y D-13

1058 D-16

1068 D-15

1068Y D-15

1069 D-15

1069Y D-15

1302 C14

1302Y C14, 18

1314 C-12

1314Y C-12, 17

1324 C-12

1324Y C-12

1390 C-16

1390Y C-16

1392 C-16

1392Y C-16, 19

1441 D-4, 5

1441Y D-4, 5

1443 D-4, 5

1443Y D-4, 5

• 1570Y C-52

• 1611 C-22, 23

• 1611BY C-22, 23

• 1611Y C-22, 23

1641 D-6, 7

1641Y D-6, 7

1643 D-6, 7

1643Y D-6, 7

• 1711BY C-22, 23

• 1711Y C-22, 23

• 1911 C-33

• 1911BY C-33, 34

• 1911Y C-33

• 2002Y C-47, 48, 54

• 2006Y C-47

• 2007Y C-47, 48

• 2014Y C-43, 44, 53

• 2016Y C-43

• 2017Y C-43, 44

• 2070Y C-52

• 2092Y C-49, 51, 55

• 2094Y C-49, 50

• 2095Y C-49, 50

• 2570Y C-62, 64

• 3902Y C-60, 61, 66

• 3906 C-60

• 3906Y C-60

• 3907 C-60, 61

• 3907Y C-60, 61

• 3914Y C-56, 57, 65

• 3916 C-56

• 3916Y C-56

• 3917 C-56, 57

• 3917Y C-56, 57

• 3992Y C-62, 63, 67

• 3994 C-62

• 3994Y C-62

• 3995 C-62, 63

• 3995Y C-62, 63

4002 C-35, 36

4002Y C-35, 36, 41

• 4006 C-35

• 4006Y C-35

• 4007 C-35, 36

• 4007Y C-35, 36

4014 C-31, 32

4014Y C-31, 32, 40

• 4016 C-31

• 4016Y C-31

• 4017 C-31, 32

• 4017Y C-31, 32

4092 C-37, 39

4092Y C-37, 39, 42

• 4094 C-37

• 4094Y C-37

• 4095 C-37, 38

• 4095Y C-37, 38

4302Y C-35, 36, 41

• 4306Y C-35

• 4307Y C-35, 36

4314Y C-31, 32, 40

• 4316Y C-31

• 4317Y C-31, 32

• 4370Y C-37, 38

4392Y C-37, 39, 42

• 4394Y C-37

• 4395Y C-37, 38

• 4402Y C-60, 61, 66

• 4406Y C-60

• 4407Y C-60, 61

• 4414Y C-56, 57, 65

• 4416Y C-56

• 4417Y C-56, 57

4448Y D-9

• 4470Y C-62, 64

• 4492Y C-62, 63, 67

• 4494Y C-62

• 4495Y C-62, 63

4498Y D-9

4502Y C-69

4514Y C-68

4570Y C-71

4592Y C-70

5002Y C-69

5014Y C-68

5070Y C-71

5092Y C-70

5158 D-10

5160 D-11

• 7502Y C-47, 48, 54

• 7506 C-47

• 7506Y C-47

• 7507 C-47, 48

• 7507Y C-47, 48

• 7514Y C-43, 44, 53

• 7516 C-43

• 7516Y C-43

• 7517 C-43, 44

• 7517Y C-43, 44

7548Y D-9

• 7592Y C-49, 51, 55

• 7594 C-49, 50

• 7594Y C-49, 50

• 7595 C-49, 50

• 7595Y C-49, 50

7598Y D-9

9158 D-10

9160 D-11

• 11511 C-45

• 11511Y C-45

• 11511BY C-45, 46

• 12011Y C-45

• 12011BY C-45, 46

• 12511 C-58

• 12511Y C-58

• 12511BY C-58, 59

• 14311Y C-33

• 14311BY C-33, 34

• 14411BY C-58, 59

• 14411Y C-58

• 15004 E-6

• 15008 E-6

• 15014 E-6

• 15018 E-6

• 15104 E-6

• 15108 E-6

• 15114 E-6

• 15118 E-6

16004 D-27

16008 D-27

16014 D-27

16018 D-27

• 36120 B-15

• 36122 D-19

• 36124 B-15 & D-8

• 36128 B-15 & D-8

• 36160 B-16

• 36164 B-16

• 36168 B-16

• 36170 B-17

• 36174 B-17

• 36178 B-17

• 36220 B-15

• 36222 D-19

• 36224 B-15 & D-8

• 36228 B-15 & D-8

• 36260 B-16

• 36264 B-16

• 36268 B-16

• 36270 B-17

• 36274 B-17

• 36278 B-17

• 66120 B-18

• 66124 B-18 & D-8

• 66128 B-18 & D-8

• 66160 B-19

• 66164 B-19

• 66168 B-19

• 66170 B-20

• 66174 B-20

• 66178 B-20

• 66220 B-18

• 66224 B-18 & D-8

• 66228 B-18 & D-8

• 66260 B-19

• 66264 B-19

• 66268 B-19

• 66270 B-20

• 66274 B-20

• 66278 B-20

96124 B-21

96128 B-21

96164 B-22

96168 B-22

96174 B-23

96178 B-23

96224 B-21

96228 B-21

96264 B-22

96268 B-22

96274 B-23

96278 B-23

A1611 C-22

A1611Y C-22

A1911 C-33

A1911Y C-33

DSXXXX D-21, 22, 23

DEXXXX D-21, 22, 23

DCXXXX D-21, 22, 23

FIGURE NO. PAGE NO. FIGURE NO. PAGE NO. FIGURE NO. PAGE NO. FIGURE NO. PAGE NO. FIGURE NO. PAGE NO. FIGURE NO. PAGE NO.

• These valves can be constructed for nuclear service.

Edward Availability Chart

EDWARD FORGED STEEL VALVES

DESCRIPTION PRESSURE RATING*(1) SIZE(1) ENDS PAGE NO.

* See paragraph 3.2, page G-59 for definition of various pressure ratings available.

(1) Metric equivalent values for ratings and sizes are in parentheses.

B-8

B-11

D-12 & 13

B-15

B-18

B-21

D-27

E-6

D-4 thru D-7

D-8

D-10

D-11

B-9

B-12

D-14 & 15

B-16

B-19

B-22

B-10

B-13

B-22

B-17

B-20

B-23

D-11

B-14

D-17

D-18

D-19

ANSI 600(110) 1/2(15) thru 2(50) Flanged

Globe Stop Valves ANSI 800(130) 1/4(6) thru 2(50) Threaded, Socket

Series 1500 1/2(15) thru 2(50) Threaded, Socket, Flanged

Univalve ANSI 1690(290), 2680(460) 1/2(15) thru 4(100) Threaded, Socket, ButtweldingGlobe Stop Valves & 4500(760)

Hermavalve ANSI to 1690(290) 1/2(15) thru Socket, ButtweldingGlobe Stop Valves 2-1/2(65)

ANSI 300(50), 400(68)

Blow Off Stop Valves & 600(110) 1-1/2(40) thru Socket, Flanged, Buttwelding

ANSI 1500(250) & 2500(420) 2-1/2(65) Socket, Buttwelding

Hydraulic Stop Valves 5,000 PSI CWP 1/4(6) thru 2(50) Threaded, Socket, Flanged10,000 PSI CWP

Globe Stop-CheckANSI 600(110) 1/2(15) thru 2(50) Flanged

Valves ANSI 800(130) 1/4(6) thru 2(50) Threaded, Socket


Univalve Globe ANSI 1690(290), 2680(460) 1/2(15) thru 4(100) Threaded, Socket, ButtweldingStop-Check Valves &4500(760)

ANSI 600(110) 1/2(15) thru 2(50) Flanged

Piston Check Valves ANSI 800(130) 1/4(6) thru 2(50) Threaded, Socket


Univalve ANSI 1690(290), 2680(460) 1/2(15) thru 4(100) Threaded, Socket, ButtweldingPiston Check Valves & 4500(760)

Hydraulic Check 5,000 PSI CWP 1/4(6) thru 2(50) Threaded, Socket, FlangedValves 10,000 PSI CWP

Ball Check Valves ANSI 800(130) 1/4(6) thru 2(50) Threaded, SocketSeries 1500

Strainers ANSI 800(130) 1/4(6) thru 2(50) Threaded, SocketSeries 1500

Flanged Univalve Class 1500 1/2(15) thru 2(50) Flanged

Edward Valves • 1900 South Saunders Street, Raleigh, North Carolina 27603 • 1-800-225-6989 • 1-919-832-0525 • Fax 1-919-831-3369 iv

Edward Availability Chart

DESCRIPTION PRESSURE RATING*(1) SIZE(1) ENDS PAGE NO.

EDWARD CAST STEEL GATE, GLOBE, ANGLE AND CHECK VALVES

* See paragraph 3.2, page G-59 for definition of various pressure ratings available.

(1) Metric equivalent values for ratings and sizes are in parentheses.

C-11, 13 & 15

C-20, 24, 26

C-20, 24C-31, 32, 35, 36C-43, 44, 47, 48,

56, 57, 60, 61C-26C-37

C-49, 50, 62, 63C-22, 23, 33, 34C-45, 46, 58, 59

C-12 & 14C-17 & 18C-21, 25C-28, 29

C-32, 35, 36C-40, 41

C-43, 44, 47, 48, 56, 57, 60, 61

C-53, 54, 65, 66C-68, 69

C-16C-19C-27C-30

C-37, 39C-42

C-49, 51, 62, 63C-55, 67

C-70C-27

C-38, 52, 64

C-71E-2 thru 14

D-3 & 9

Bolted Bonnet Globe and ANSI 300(50) 2-1/2(65) thru 12(300)Angle Valves, Stop and ButtweldingStop-Check (Non-Return) and ANSI 600(110) 2-1/2(65) thru 69150) or FlangedBolted Cover Piston Check

Pressure Seal Bonnet ANSI 600(110) 8(200) thru 14(350)Globe and Angle Valves ANSI 900(150) 3(80) thru 24(600) ButtweldingStop and Stop-Check

ANSI 1500(250) & 2500(420) 2-1/2(65) thru 24(600)or Flanged

(Non-Return)

Pressure Seal Cover,ANSI 600(110) 8(200) thru 14(350)

ButtweldingPiston Check Valves ANSI 900(150) 8(200) thru 24(600) or Flanged

ANSI 1500(250) & 2500(420) 2-1/2(65) thru 24(600)

Equiwedge Gate Valves ANSI 600(110) & 900(150) 2-1/2(65) thru 32(800) ButtweldingANSI 1500(260) & 2500(420) 2-1/2(65) thru 24(600) or Flanged

ANSI 300(50) 3(80) thru 16(400)

Flite-Flow Globe Valves, ANSI 400(68) 3(80) thru 4(100)Buttwelding

Stop and Stop-Check ANSI 600(110) 3(80) thru 32(800) or Flanged(Non-Return) ANSI 700(120) 6(150) thru 32(800)

ANSI 900(150) 6(150) thru 16(400)ANSI 1100(190) 3(80) thru 4(100)

ANSI 1500(260) & 2500(420) 3(80) thru 24(600)

ANSI 1800(310) & 2900 (490) 3(80) thru 4(100)Series 4500 4(100) thru 10(250)

ANSI 300(50) 3(80) thru 16(400)

Flite-Flow ANSI 400(68) 3(80) thru 4(100)Buttwelding

Piston Check Valves ANSI 600(110) 3(80) thru 32(800) or FlangedANSI 700(120) 6(150) thru 32(800)ANSI 900(150) 6(150) thru 16(400)ANSI 1100(190) 3(80) thru 4(100)

ANSI 1500(260) & 2500(420) 3(80) thru 24(600)ANSI 1800(310) & 2900 (490) 3(80) thru 4(100)

Series 4500 4(100) thru 10(250)ANSI 600(110) 6(150) thru 20(500)

Tilting Disk 900(150), 1500(260) & 2-1/2(65) thru 24(600) ButtweldingCheck Valves 2500(420)

Class 4500(760) 6(150) & 8(200)Nuclear Valves Thru ANSI 2500(420) to Size 32(800) ButtweldingSpecial Application Valves Thru ANSI 2500(420) to Size 18(450) As Required

Edward Valves • 1900 South Saunders Street, Raleigh, North Carolina 27603 • 1-800-225-6989 • 1-919-832-0525 • Fax 1-919-831-3369 v

Edward Description of Figure Number System

XX1 Alpha Digit Indicates Design

Revision if Applicable.2 Alpha Digits Indicates Style of Pressure

Combo Valve (See Page D20).

XXXXX3-5 Digits

Figure Number

(XXX)3-4 Digits

Body MaterialDesignation

XXXXXXX1 or more Digits

As Required Suffixes(See List)

Unless otherwise specified whenordering Edward valves, the standardmaterial of construction for Forgedproducts is A105 Carbon Steel, and forCast products is A216 Grade WCBCarbon Steel.

Listed below are the letter suffixes usedto indicate variations from standardconstruction, or special features (Ex. 618K, 7506 [WC6]Y, and 847 AH.)

When two or more suffixes follow afigure number a definite suffix sequenceis to be used.The sequence is:

1) Special material (if applicable)2) All other applicable feature

suffixes in alphabetical order.Except T1-T5 which are listed last.

CF8C - Cast 18-8 stainless steel (type 347)body and bonnet. Parts in contactwith line fluid either cast or forged18-8 stainless steel or equivalent.

CF3M - Cast 18-8 stainless steel (type 316L)body and bonnet. Parts in contactwith line fluid either cast or forged18-8 stainless steel or equivalent.

CF8M - Cast 18-8 stainless steel (type 316)body and bonnet. Parts in contactwith line fluid either cast or forged18-8 stainless steel or equivalent.

C5 - Cast chromium molybdenum (5chromium 1/2 molybdenum) GradeC5 alloy steel body and bonnet. Trimof equal or higher grad alloy steel.

F11 - Body and bonnet of forged chromiummolybdenum (1-1/4 chromium, 1/2molybdenum) Grade F11 alloy steel.

F22 - Body and bonnet of forged chromiummolybdenum (2-1/4 chromium, 1molybdenum) Grade F22 alloy steel.

F91 - Body and bonnet of forged chromiummolybdenum (9 chromium, 1molybdenum) Grade F91 alloy steel.

F316 - Body and bonnet of forged Type 316stainless steel.

F316L - Body and bonnet of forged Type316L stainless steel.

F347 - Body and bonnet of forged Type 347stainless steel.

F347H - Body and bonnet of forged Type347H stainless steel.

LF2 - Forged carbon steel material onwhich Charpy impact tests havebeen performed on forging heat todetermine low temperature properties.

WC1 - Cast carbon molybdenum GradeWC1 body and bonnet.

WC6 - Cast chromium molybdenum (1-1/4chromium, 1/2 molybdenum) GradeWC6 alloy steel body and bonnet.

WC9 - Cast chromium molybdenum (2-1/4chromium, 1 molybdenum) GradeWC9 alloy steel body and bonnet.

WCC - Cast carbon steel Grade WCC bodyand bonnet.

A - Special body only - body patternalterations not required. Flanges onforged valves not normally suppliedwith flanges. On socket end forgedsteel valves the inlet and outlet endsare different.

B - Venturi pattern body.

C - Locking devices consisting ofpadlock and chain.

CD - Locking devices, indicator type.

DD - Equalizer external.

DDI - Equalizer internal.

E - Permanent drain, hole in disk orgroove in disk face.

F - Special trim material: used todesignate special disk material,special stem material, or inconelspring in check valves.

FF - Special yoke bushing material, suchas Austenitic Nodular Iron.

G - By passes on all types of cast steelvalves

H - Spur gear operation.

HH - Bevel gear operation.

HHL - Valve less bevel gear actuator butwith actuator mounting equipment.

J - Any unclassified special.

K - Throttle disk or skirted disk.

L - Impactor operated. Used now only toindicate impactor handwheel orhandle on valves not regularlyfurnished with impactor.

LD - Impactorgear or Impactodrive. Suffixnot used for valves that arecataloged as having Impactogear asstandard.

M - Motor actuated.

ML - Valve less actuator but with motoractuator mounting equipment.

MM - Cylinder/diaphragm actuated. Eitherhydraulic or pneumatic.

MML - Valve less cylinder/diaphragmactuator but with actuator mountingequipment.

N - Body drilled and tapped or socketedfor drains, with or without nipple, withor without drain valves.

P - Non-standard packing of all types.

PL - Plastic lined.

Q - Non-standard bonnet gaskets orgasket plating.

R - Special lapping and honing and gastesting (recommended for valves onhigh pressure gas service).

S - Smooth finish on contact faces ofend flanges

T - Critical service requiring specialtesting and/or NDE.

W - Stellited seat and disk. Suffix notused for valves that are cataloged ashaving stellited seat and disk asstandard.

X - Ring joint facing on body endflanges.

Y - All welding ends either socket orbutt. Suffix not used for valves wherefigure number designates weldingends as standard, such as Fig.36224 and 66228 for example.

T1 - ASME Section III Class 1 compliance.



T4 - ASME Section III compliance without“N” stamp.

T5 - Nuclear safety related-10CFR21invoked.

Special Material Suffixes Special Feature Suffixes

Edward Valves • 1900 South Saunders Street, Raleigh, North Carolina 27603 • 1-800-225-6989 • 1-919-832-0525 • Fax 1-919-831-3369 vi

Edward ValvesA Introduction Section A

EV-1004th Edition

A

High Performance For Critical Service

Temperatures that can exceed 1000° F. Pressures surpassing10,000 psi. In critical service conditions, you can’t take chances.You don’t just meet standards, you exceed them. That’s howEdward forged and cast steel valves have become the specifiedchoice for power plants, process facilities, and other high-temperature, high-pressure services.

Conservative DesignEdward Valves takes a conserv-ative approach to valve design.We meet all applicable codesand standards, but we gobeyond that...with finite elementstress analysis of critical areasand rigorous proof testing.Edward valves are built to takepunishment!

And our extensive testing hasalso allowed us to developextremely high flow efficienciesin all our valves.

You’ll find other unique designadvantages on our variousproduct lines, such as ourEquiwedge gate valves, with atwo-piece wedge gate assemblywhich adjusts automatically toany angular distortion of thebody seats. And many otherdesign features, now con-sidered industry “standards,”started on the drawing boardsat Edward Valves.

Precision ManufacturingEdward Valves also exceedsindustry standards on the fac-tory floor. Our forged valves areproduced on a fully automatedline, with CNC machining cen-ters providing precise processcontrol. And we maximize caststeel quality by producing ourvalve body castings using adirectional solidification processfrom patterns designed by ourown technicians. This processassures high strength void freecastings for uncompromisedquality.

Even with the most advancedequipment, we feel our peoplemake the real difference atEdward Valves. Our productionpersonnel have an average 20years in the industry, and 15years with Edward Valves! This exceptional experiencelevel allows us to achieve anextra degree of precision thatcan make a very real differencein the field.

Finally, it’s our people, alongwith our procedures for qualityassurance and lot-traceability,that have earned Edward Valvesthe ASME N stamp, certifying ourRaleigh, North Carolina, manu-facturing facility for nuclear-ser-vice valve production.

Lower Total CostsThose tough standards havecarried over into every valve wemanufacture. Whether it is fornuclear service or not, wedesign and build our valves tolast at least 40 years. Thatmeans not only are they tough,but they are designed with easymaintenance in mind.

Considering the cost of valvefailure, Edward Valves quality isclearly worth specifying. That’sbeen true since 1904, when thefirst Edward valve was made.Today, as industrial companiesbecome increasingly aware thatoperating expenses are part oftotal cost, the choice becomesboth more clear and more criti-cal than ever.

Edward Valves • 1900 South Saunders Street, Raleigh, North Carolina 27603 • 1-800-225-6989 • 1-919-832-0525 • Fax 1-919-831-3369 A2

Designed With An Eye On Your Bottom Line

In-house computer-aided design andfinite-element method capabilities giveour engineering staff powerful tools todevelop reliable valves for critical serviceapplications. CAD generated graphicmodels undergo FEM analysis to deter-mine that stresses are within acceptablelimits. Dynamic simulation of valve opera-tion also helps assure reliability ofEdward valve performance.

Prototyping is just as important, and rig-orous proof testing is a mainstay ofEdward valve design. Before we approvea valve for production, we put it throughhundreds, even thousands, of cycles todemonstrate that performance and seal-ing integrity will be maintained in service.Transducers relay data from test assem-blies to computers for further analysis.

Laboratory simulation of critical servicesincludes a steam generator and super-heater, designed for 2700 psi and 1050°F. This flexible system allows testing ofprototype valves under both low pressureand high pressure conditions. In addition

to prototype testing, this system hasbeen used for applications such as:friction and wear tests of valve trimmaterials in hot water and steam environments; qualification tests of new or redesigned valves; and prooftesting of new valve gaskets and valvestem packings.

Before we make the first production unit,that valve has already been through arigorous program to assure long life,simple maintenance, and dependableperformance, for the lowest cost over thelife of the valve. Again, people playimportant roles in design. The Edwardproduct engineering department poolswell over 200 years of valve experience.

Testing Beyond Code Requirements

At Edward Valves, quality assurancestarts with meeting code requirements.Valves are manufactured to ANSI B16.34(Standard, Limited and Special Classes),including standards for:

•Minimum wall thickness of valve body.•Body, bonnet and body-bonnet boltingto specified ASTM material standards.

•Hydrostatic shell testing at 1.5 times the100° F rating of the valve.

From there, Edward Valves goes on toexceed the code, with higher test stan-dards and an additional battery of testsperformed on every type of valve wemake, using in-house test facilities andpersonnel to assure expert quality con-trol. Edward Valves’ quality assuranceprogram includes:

Non-Destructive Examination•All NDE personnel are qualified inaccordance with ASNT-TC-1A guidelines.

•All castings are visually examined perMSS SP-55.

•The first five body castings from everypattern are 100% radiographed to verifycasting quality.

Hydrostatic Testing•The seat-leakage criteria no visibleleakage for forged steel and 2ml/hour/inch of nominal valve size for caststeel are stricter than the allowedleakage rate of MSS SP-61, which is10ml/hour/inch of nominal valve size.

•Seat-leakage test is performed at 110%of 100° F rating.

Statistical Process ControlRequirements are clearly stated andmeasurements are taken to determineconformance to those requirements.“Quality” equals conformance to require-ments.

WeldingAll personnel and procedures are quali-fied in accordance with ASME Boiler andPressure Vessel Code, Section IX.

Additional Standard Tests for Specific ValvesIncludes heavy-wall examination on largebody castings.

We have only listed a few of EdwardValves’ standard tests that exceed industry requirements. Also, EdwardValves has the facilities and the expertise to meet additional quality-assurance standards, as required for the application.

A


A History of Firsts

A

Feature

Body-guided disks on globe and anglevalves

Integral Stellite hardfaced seats in globeand angle valves

Hermetically sealed globe valves withseal-welded diaphragms

Equalizers for large check and stop-check valves

Compact pressure-seal bonnet joints

Qualified stored-energy actuators

Qualified valve-actuator combinations

Stainless steel spacer rings on gatevalves, fitted between wedge halves

Unique two-piece, flexible wedges ongate valves

Impactor handwheels and handles

Inclined-bonnet globe valves withstreamlined flow passages

Globe valves available with both verticaland inclined stems

Live-loaded pressure energizedPressurSeat for globe valves

Benefit

Minimize wear and ensure alignment fortight sealing.

Permit compact design and resist erosion.

Prevent stem leakage in critical nuclearplant applications.

Ensure full lift at moderate flow rates,and prevent damage due to instability.

Eliminate massive bolted flanges onlarge, high-pressure valves.

Allow quick-closing valves in safety-related nuclear plant applications.

Used in main steam and feed-water service throughout the world.

Simplify service. Damaged valve seatscan be restored to factory fit by in-linereplacement with slightly thicker ring.

Automatically adjust to any angular distortion of body seats. Shape providesgreater flexibility. Assure dependablesealing and prevent sticking.

Allow workers to generate several thousand foot-pounds of torque, thusensuring tight shutoff of manually operated globe and angle valves.

Minimize pressure drop due to flow.

Provide stem designs suited to anyinstallation.

Globe valve design for high pressuredrain and vent service.


Edward Valves

B Forged Steel Valves Section B

EV-1004th Edition

Edward Valves • 1900 South Saunders Street, Raleigh, North Carolina 27603 • 1-800-225-6989 • 1-919-832-0525 • Fax 1-919-831-3369 B2

B

Features and Description of Edward Univalve Globe Valves

1. Stem has ACME threads, is ground to afine finish and is hardened to resist wear.

2. Yoke bushing material has low coefficientof friction which substantially reduces torqueand stem wear and eliminates galling.Mechanical upset locks yoke bushing to yoke.

3. Yoke-bonnet assembly is two piece tofacilitate disassembly for faster in-line internalrepairs.

4. Inclined stem construction and optimumflow shape minimizes flow direction changesand reduces pressure drop.

5. Body-guided disk utilizes anti-thrust ringsto eliminate misalignment, galling and stembending.

6. Integral hardsurfaced seat provides posi-tive shutoff and long seat life.

7. Handwheel on smaller size valves isrugged and knobbed to provide sure grip evenwhen wearing gloves. Impactor handle orhandwheel on larger, higher pressure valvesprovides many times the closing force of anordinary handwheel for positive seating.

8. Threaded bonnet has ACME threads forresistance to galling and ease of disassembly.Unwelded models utilize a graphitic gasket fordependable sealing. Welded models employ afillet weld (canopy weld on stainless steelvalves) for absolute protection from body-bon-net leakage.

9. Stem packing system utilizes flexiblegraphite packing material with carbon fiberanti-extrusion rings for optimum sealabilityand life.

10. Bonnet locking collar. (unwelded valvesonly)

11. Bonnet seal ring is die formed flexiblegraphite gasket seated to a prescribed bonnettorque to provide reliable bonnet seal.

12. Integral backseat provides a secondarystem seal back up for positive shutoff and leakprotection.

7.

8.

9.

10.

11.

12.

1

2.

3.

4.

5.

6.

DESCRIPTION ASTM NO. ASTM NO. ASTM NO. ASTM NO.

Part Specification List for Edward Univalve

This is not a complete list. Construction and materials will vary between sizes and pressure classes and may be changed without notice. For a complete, accurate, and itemized description of a particular valve, contact your Edward Valves sales representative.

B

Body A-105 A-182 A-182 A-182 Grade F-22 Grade F-316/F-347* Grade F91

BonnetA-696 A-739 A-479 A-182

Grade C Grade B-22 T-316/347 Grade F91

StemA-479 A-479 A-638 A-638

T-410CL3 T-410CL3 Grade 660 Grade 660

DiskA-732 A-732 A-732 A-732

Grade 21 Grade 21 Grade 21 Grade 21

Body Seat Stellite 21 Stellite 21 Stellite 21 Stellite 21

Junk Ring A-732 A-732

Grade 21 Grade 21

Packing Rings Flexible Graphite System Flexible Graphite System Flexible Graphite System Flexible Graphite System

GlandA-668 A-668 A-182 A-668

Grade 4140 Grade 4140 Grade F6a Grade 4140

Gland Adjusting ScrewA-582 A-582 A-582 A-582

T-416 T-416 T-416 T-416

YokeA-181 A-181 A-181 A-181

Class 70 Class 70 Class 70 Class 70

Yoke Bushing B150 Alloy C61900 or C62300 B150 Alloy C61900 or C62300 B150 Alloy C61900 or C62300 B150 Alloy C61900 or C62300

Yoke BoltA-307 A-307 A-307 A-307

Grade A Grade A Grade A Grade A

Yoke Nut A-563 Grade A A-563 Grade A A-563 Grade A A-563 Grade A

Handwheel/Impactor Handle Malleable or Malleable or Malleable or Malleable or

Adapter Ductile Iron Ductile Iron Ductile Iron Ductile Iron

Stem Nut/WasherMild Steel Mild Steel Mild Steel Mild Steel

Plated Plated Plated Plated

Bonnet Seal Ring**Flexible Flexible Flexible Flexible

Graphite Graphite Graphite Graphite

Bonnet Insert†A-582 A-582 A-479 A-582

T-416 T-416 T-316 T-416

Locking Collar†††Carbon Carbon Carbon Carbon

Steel Steel Steel Steel

Spring††A-313 A-313 A-313 INCONEL

T-302 T-302 T-302 X-750

Parts shown above are not applicable to all Univalve valves.* Other Stainless grades available on application.** Used in unwelded and Class 4500 welded design only.† Class 4500 welded design only.†† Check valves only.††† Unwelded valves only.


Edward Forged Steel Valves Feature Body-Guided DisksTo Prevent Side-Thrust and Eliminate – 1. Stem galling & binding 2. Disk-seat misalignment and damage 3. High operating torque

Valve disks are guided by rings that fit snugly within the body bore andassure perfect disk-and-seat alignment despite the side thrust of modernhigh velocities and high pressure-differentials. This protects the stemand its contact points; eliminates galling, scoring, bending and the highoperating torque resulting from these abuses. Because they eliminatedisk wobble and assure alignment of disk with seat, they also assuremore dependable closing and longer disk, seat and body life.

Double Duty for Lower Bearing - The lower ring not only serves as ahighly efficient anti-side thrust bearing but serves too, as a “flow direc-tor.” Its snug fit within the bonnet bore reduces by 90% the amount offlow that can get into the bonnet cavity and exert thrust forces againstthe side of the disk. In short, the anti-thrust ring design diverts 90% of theline forces into controllable channels.

Machining Important,Too - To assure concentric alignment essential totight seating, the body bore and the stellite seat are both machined in asingle operation. The disk’s anti-thrust rings and conical stellite seat faceare also faced in a single operation.

Streamlined Flow Passages for Highest CV Values - The inclined bon-net globe stop valves (and check and stop-check valves) continue theEdward reputation for the ultimate in flow passage streamlining. Inclinedbonnet construction minimizes flow directional changes and minimizeswear caused by excessive turbulence.

Whether it’s pounds per hour of steam or gallons per minute of liquid, theinclined bonnet valves give you better flow capacity.

Flow Under or Over Disk - Normal practice is to install globe valves withflow entering from below the disk. However, piping designers may confi-dently install Edward globe stop valves with flow entering over the diskwhen space problems or other considerations suggest this procedure.Our valves operate equally well with flow in either direction; however,with flow over the disk, packing is under pressure when the valve isclosed and there is a slight penality in CV value.

B

Figure 1 - Ordinary Vertical Stem Globe Valves aresubject to side-thrust under high pressure drop con-ditions. Illustration shows how upstream pressurecan slip past stem-guided disk and impart a thrusttoward the downstream side of the valve. Testshave proven that this thrust causes disk-seat mis-alignment plus galling and scoring.

Figure 2 - Inclined Stem Globe Valves of the stem-guided type are also subject to side-thrust underthe same conditions. Illustration above shows pathpressure through the valve.

Figure 3 - This illustration shows the Edward body-guided disk with anti-thrust rings. Lower guide elimi-nates 90% of the flow upward and behind the disk.Both guide rings maintain perfect alignment. Thiseffectively eliminates all side-thrust problems.

Figure 5 - Graph illustrates typical throttling curves for conven-tional stem-guided Globe Valve and Univalve. Note, theUnivalve Curve illustrates that finest control is obtained at lowlifts, when it is needed. Contrast this with conventional valvecurve which shows rapid flow increase as disk lifts off seat.

Figure 4 - Graph illustrates relationship of side-thrust in conven-tional stem-guided Globe Valve and in Edward Univalve withbody-guided disk.


Here’s How The Unique Stem-Disk Assembly is Made...

B

Figure 1First, a Stellite wire is inserted into a hole in aUnivalve body guided disk.

Figure 2Next, the Stellite wire is fed around circulargrooves, adjacent to one another, on theinside bore of the disk and outside diameterof the stem.

Figure 3Finally the hole through which the wire wasfed is welded closed.


Features and Description of Edward Bolted Bonnet Globe Valves

1. Handwheel is rugged and knobbed to pro-vide sure grip even when wearing gloves.



4. Bolted Bonnet joint utilizes a spiral woundgasket for positive sealing and four-boltdesign for ease of assembly. Bonnet has pilotextension to insure proper alignment and pos-itive metal to metal stop to prevent over-com-pression of gasket.


6. Stem packing system utilizes flexiblegraphite packing material with anti-extrusionrings for optimum sealability and life.

7. Integral backseat provides a secondarystem seal backup for positive shutoff and leakprotection.

8. Body utilizes optimized flow passages tominimize flow direction changes and reducepressure drop.


B


Part Specification List for Edward Bolted Bonnet Globe Valves

This is not a complete list. Constructionand materials will vary between sizesand pressure classes and may bechanged without notice. For a complete,accurate, and itemized description of aparticular valve, contact your EdwardValves sales representative.

B

DESCRIPTIONBOLTED BONNET

ASTM NO. ASTM NO.

Body/BonnetA-105 A-182

— Grade F11

DiskAISI 615 AISI 615

Stainless Steel Stainless Steel

Body Seat Stellite 21 Stellite 21

StemA-582 A-582

T-416 T-416

Cap ScrewsA-193 A-193

Grade B-7 Grade B-7

GasketSpiral Wound Spiral Wound

Non Asbestos Non-Asbestos

Packing Flexible Graphite System Flexible Graphite System

GlandA-536 A-536

GR. 80-55-06 GR. 80-55-06

Yoke Bushing B-150 C61900 or C62300 B-150 C61900 or C62300

Handwheel/HandleMalleable or Malleable or

Ductile Iron Ductile Iron

Stem Nut Mild Steel-Plated Mild Steel-Plated

Eye BoltA-582 A-582

T-416 T-416

Eye Bolt NutA-563 A-563

Grade A Grade A

Eye Bolt PinAISI AISI

Grade 4140 Grade 4140

Spring**A-313 A-313

T302 T302

Ball**A-276 A-276

T440 C T440 C

**Check valves onlyNOTES: Parts shown above are not applicable to all Bolted Bonnet valves.

Consult your Edward Valves sales representative for special applications.


Stop Valves Class 600 1480 PSI @ 100°F (102.1 BAR @ 38°C)

BStandard Features• Bodies and bonnets are of forged

steel (A105).• Bolted bonnet, OS&Y.• Globe & angle design.• Body-guided hardened stainless

steel disk.• Integral Stellite seat.• Integral backseat.• 13% chromium stainless steel

stem.• Asbestos free graphitic packing.• Asbestos free spiral wound

bonnet gasket.• Knobbed handwheel.

FIG. NO. TYPE ENDS NPS (DN)828 Globe Flanged 1/2 (15) thru829 Angle Flanged 2 (50)

Pressure Class 600 (PN 110)

Figure No. 828, 829 NPS 1/2 3/4 1 1-1/4 1-1/2 2DN 15 20 25 32 40 50

C - Face to Face, Globe (Flanged) 6.5 7.5 8.5 9.5 9.5 11.5165 191 216 241 241 292

D - Center to Face, Angle (Flanged) 3.3 3.8 4.3 4.8 4.8 5.884 97 109 122 122 147

E - Center to Top, Globe (Open) 6.1 6.9 7.7 11.1 11.1 12.1155 175 196 282 282 307

F - Center to Top, Angle (Open) 5.7 6.4 7.1 10.2 10.2 11.0145 163 180 259 259 279

G - Handwheel Diameter 3.8 4.3 4.8 7.1 7.1 8.597 109 122 180 180 216

Weight, Globe 7.5 12 16 27 32 383.4 5.4 7.2 12.2 14.4 17.1

Weight, Angle 7 11 15 26 31 363.2 5 6.8 11.7 14 16.2

Bold face numerals are in inches and pounds.Green numerals are in millimeters and kilograms.Dimensions - Globe & Angle


Stop-Check Valves Class 600 1480 PSI @ 100°F (102.1 BAR @ 38°C)


steel (A105).• Bolted bonnet, OS & Y.• Globe & angle design.• Body-guided hardened stainless


stem.• Asbestos free graphitic packing.• Asbestos free spiral wound bon-

net gasket.• Knobbed handwheel.• Stainless steel spring.



Figure No. 846, 847 NPS 1/2 3/4 1 1-1/4 1-1/2 2DN 15 20 25 32 40 50

C - Face to Face, Globe (Flanged) 6.5 7.5 8.5 9.5 9.5 11.5165 191 216 241 241 292

D - Center to Face, Angle (Flanged) 3.3 3.8 4.3 4.8 4.8 5.884 97 109 122 122 147

E - Center to Top, Globe (Open) 6.1 6.9 7.7 11.1 11.1 12.1155 175 196 282 282 307



Weight, Globe 7.5 12 16 27 32 383.4 5.4 7.2 12.2 14.4 17.1

Weight, Angle 7 11 15 26 31 363.2 5 6.8 11.7 14 16.2

Dimensions - Globe & AngleBold face numerals are in inches and pounds.Green numerals are in millimeters and kilograms.


Piston Check Valves Class 600 1480 PSI @ 100°F (102.1 BAR @ 38°C)

B

FIG. NO. TYPE ENDS NPS (DN)858 Globe Flanged 1/2 (15) thru 2 (50)

Standard Features• Bodies and covers are of forged

steel (A105).• Bolted cover.• Globe design.• Body-guided hardened stainless

steel disk.• Integral Stellite seat.• Asbestos free spiral wound cover

gasket.• Stainless steel spring.


Figure No. 858 NPS 1/2 3/4 1 1-1/4 1-1/2 2DN 15 20 25 32 40 50

C - Face to Face (Flanged) 6.5 7.5 8.5 9.5 9.5 11.5165 191 216 241 241 292

E - Center to Top 2.3 2.7 3.1 4.2 4.2 4.758 69 79 107 107 119

Weight 6.5 11 13 21 26 292.9 5 5.9 9.5 11.7 13.1

Bold face numerals are in inches and pounds.Green numerals are in millimeters and kilograms.Dimensions - Globe




steel (A105 or F11).• Bolted bonnet, OS & Y.• Y-Pattern or angle design.• Body-guided hardened stainless




FIG. NO. TYPE ENDS NPS (DN)848 Y-Pattern Threaded

1/4 (8)848Y Y-Pattern Socket Weldingthru849 Angle Threaded

2 (50)849Y Angle Socket Welding


Figure No. 848/848Y, 849/849Y NPS 1/4 3/8 1/2 3/4 1 1-1/4 1-1/2 2DN 8 10 15 20 25 32 40 50

A - End to End, Globe 3 3 3 3.6 4.3 5.8 5.8 6.576 76 76 91 109 147 147 165

B - Center to End, Angle 1.5 1.5 1.5 1.8 2 2.9 2.9 3.338 38 38 46 51 74 74 84

E - Center to Top, Globe (Open) 6 6 6 6.8 7.6 10.9 10.9 12.1152 152 152 173 193 277 277 307

F - Center to Top, Angle (Open) 5.7 5.7 5.7 6.4 7.1 10.2 10.2 11145 145 145 163 180 259 259 279

G - Handwheel Diameter 3.8 3.8 3.8 4.3 4.8 7.1 7.1 8.597 97 97 109 122 180 180 216

Weight, Globe 4 4 4 5.5 7.5 16 16 231.8 1.8 1.8 2.5 3.4 7.2 7.2 10.4

Weight, Angle 4 4 4 5.5 7 17 17 241.8 1.8 1.8 2.5 3.2 7.7 7.7 10.8



Stop-Check Valves Class 800 2000 PSI @ 100°F (137.9 BAR @ 38°C)





bonnet gasket.• Knobbed handwheel.• Stainless steel spring.






A - End to End, Globe 3 3 3 3.6 4.3 5.8 5.8 6.576 76 76 91 109 147 147 165


E - Center to Top, Globe (Open) 6 6 6 6.8 7.6 10.9 10.9 12.1152 152 152 173 193 277 277 307



Weight, Globe 4 4 4 5.5 7.5 16 16 231.8 1.8 1.8 2.5 3.4 7.2 7.2 10.4

Weight, Angle 4 4 4 5.5 7 17 17 241.8 1.8 1.8 2.5 3.2 7.7 7.7 10.8



Piston Check Valves Class 800 2000 PSI @ 100°F (137.9 BAR @ 38°C)

BStandard Features• Bodies and covers are of forged

steel (A105 or F11).• Bolted cover.• Y-Pattern.• Body-guided hardened stainless


gasket.• Stainless steel spring. (Optional

without springs, see page G14.)

FIG. NO. TYPE ENDS NPS (DN)838 Y-Pattern Threaded 1/4 (8) thru

838Y Y-Pattern Socket Welding 2 (50)


Figure No. 838/838Y NPS 1/4 3/8 1/2 3/4 1 1-1/4 1-1/2 2DN 8 10 15 20 25 32 40 50

A - End to End 3 3 3 3.6 4.3 5.8 5.8 6.576 76 76 91 109 147 147 165

E - Center to Top 2.8 2.8 2.8 3.3 3.8 4.6 4.6 5.171 71 71 84 97 117 117 130

Weight 2 2 2 3.5 5 11 10 14.9 .9 .9 1.6 2.3 5 4.5 6.3

Dimensions - GlobeBold face numerals are in inches and pounds.Green numerals are in millimeters and kilograms.


Ball Check Valves Class 800 2000 PSI @ 100°F (137.9 BAR @ 38°C)

B

Figure No. 832/832Y NPS 1/4 3/8 1/2 3/4 1 1-1/4 1-1/2 2DN 8 10 15 20 25 32 40 50

A - End to End 3 3 3 3.6 4.3 5.8 5.8 6.576 76 76 91 109 147 147 165

E - Center to Top 2.8 2.8 2.8 3.3 3.8 4.6 4.6 5.171 71 71 84 97 117 117 130

Weight 2 2 2 3.5 5 11 10 14.9 .9 .9 1.6 2.3 5 4.5 6.4


steel (A105 or F11).• Bolted cover.• Y-Pattern.• Integral Stellite seat.• Asbestos free spiral wound cover

gasket.• Stainless steel spring.• Stainless steel ball.






Univalve Stop Valves Class 1690 4225 PSI @ 100°F (291.4 BAR @ 38°C)

BStandard Features• Available Body Materials

− A105 carbon steel.− F22 alloy steel.− F91 alloy steel.− F316, F347 stainless steel.− Other material on application.

• Unwelded (graphitic seal) or welded bonnet.

• OS & Y.• Y-Pattern.• Body-guided investment cast

Stellite disk.• Integral Stellite seat.• Integral backseat.• Asbestos free graphitic packing. Figure No. 36120, 36124, 36128 NPS 1/2 3/4 1 1-1/4 1-1/2 2 2-1/2 3 4

36220,36224,36228 DN 15 20 25 32 40 50 65 80 100

A - End to End 6.0 6.0 6.0 6.7 6.7 8.2 10.7 10.7 12.8152 152 152 170 170 208 272 272 325

AA - End Hub Diameter 2.30 2.30 2.30 3.20 3.20 3.64 4.00 4.00 4.8058 58 58 81 81 92 102 102 122

AB - Handwheel Clearance, (Open) 7.5 7.5 7.5 11.0 11.0 11.6 12.5 12.5 11.2191 191 191 279 279 295 318 318 284

B - Center to End 4.0 4.0 4.0 4.8 4.8 6.1 7.1 7.1 8.8102 102 102 122 122 155 180 180 224

E - Center to Top, (Open) 11.5 11.5 11.5 15.9 15.9 17.7 19.6 19.6 20.0292 292 292 404 404 450 498 498 508

G - Handwheel/Handle Diameter 8.5 8.5 8.5 14.3* 14.3* 14.3* 16.0** 16.0** 16.0**216 216 216 363* 363* 363* 406** 406** 406**

Weight, Welded 19 19 19 36 36 57 100 100 1389 9 9 16 16 26 46 46 63

Weight, Unwelded 20 20 20 38 38 59 104 104 1429 9 9 17 17 27 47 47 64

FIG. NO.TYPE ENDS NPS (DN)

WELDED UNWELD.

36120 36220 Y-Pattern Threaded 1/2 (15) thru 1 (25)36124 36224 Y-Pattern Socket Welding 1/2 (15) thru 2-1/2 (65)36128 36228 Y-Pattern Buttwelding 1/2 (15) thru 4 (100)

* Impactor Handle **Impactor Handwheel

Dimensions - Globe


Bold face numerals are in inches and pounds.Green numerals are in millimeters and kilograms.


Univalve Stop-Check Valves Class 1690 4225 PSI @ 100°F (291.4 BAR @ 38°C)





Stellite disk.• Integral Stellite seat.• Integral backseat.• Asbestos free graphitic packing.


WELDED UNWELD.



Figure No. 36160, 36164, 36168, NPS 1/2 3/4 1 1-1/4 1-1/2 2 2-1/2 3 436260, 36264, 36268 DN 15 20 25 32 40 50 65 80 100

A - End to End 6.0 6.0 6.0 6.7 6.7 8.2 10.7 10.7 12.8152 152 152 170 170 208 272 272 325



B - Center to End 4.0 4.0 4.0 4.8 4.8 6.1 7.1 7.1 8.8102 102 102 122 122 155 180 180 224



Weight, Welded 19 19 19 36 36 57 100 100 1389 9 9 16 16 26 46 46 63

Weight, Unwelded 20 20 20 38 38 59 104 104 1429 9 9 17 17 27 47 47 64




Univalve Piston Check Valves Class 1690 4225 PSI @ 100°F (291.4 BAR @ 38°C)



• Unwelded (graphitic seal) or welded cover.

• Y-Pattern.• Body-guided investment cast

Stellite disk.• Integral Stellite seat.• Stainless steel spring. (Optional

without springs, see page G-14.)

Figure No. 36170, 36174, 36178, NPS 1/2 3/4 1 1-1/4 1-1/2 2 2-1/2 3 436270, 36274, 36278 DN 15 20 25 32 40 50 65 80 100

A - End to End 6.0 6.0 6.0 6.7 6.7 8.2 10.7 10.7 12.8152 152 152 170 170 208 272 272 325


B - Center to End 4.0 4.0 4.0 4.8 4.8 6.1 7.1 7.1 8.8102 102 102 122 122 155 180 180 224

E - Center to Top 3.9 3.9 3.9 5.0 5.0 5.8 7.2 7.2 7.899 99 99 127 127 147 183 183 198

Weight 14 14 14 22 22 31 44 44 866 6 6 10 10 14 20 20 39


WELDED UNWELD.


Dimensions - Globe





BStandard Features• Available Body Material






WELDED UNWELD.

66120 66220 Y-Pattern Threaded* 1/2 (15) thru 1 (25)66124 66224 Y-Pattern Socket Welding 1/2 (15) thru 2-1/2 (65)66128 66228 Y-Pattern Buttwelding 1/2 (15) thru 4 (100)


* Threaded end valves are limited to Pressure Class 2500.

Figure No. 66120, 66124, 66128, NPS 1/2 3/4 1 1-1/4 1-1/2 2 2-1/2 3 466220, 66224, 66228 DN 15 20 25 32 40 50 65 80 100

A - End to End 6.0 6.0 6.0 6.7 6.7 10.7 12.8 12.8 12.8152 152 152 170 170 272 325 325 325



B - Center to End 4.0 4.0 4.0 4.8 4.8 7.1 8.8 8.8 8.8102 102 102 122 122 180 224 224 224


G - Handwheel/Handle Diameter 8.5 8.5 8.5 11.0* 11.0* 14.3 16.0** 16.0** 16.0**216 216 216 279* 279* 363* 406** 406** 406**

Weight, Welded 19 19 19 34 34 79 142 142 1429 9 9 16 16 36 65 65 65

Weight, Unwelded 20 20 20 36 36 83 146 146 1469 9 9 17 17 38 66 66 66


* Impactor Handle ** Impactor Handwheel


Univalve Stop-Check Valves Class 2680 6700 PSI @ 100°F (462.1 BAR @ 38°C)


− A105 carbon steel.− F22 alloy steel.− F91 alloy steel.− F316, F347 stainless steel.− Other material on application




Figure No. 66160, 66164, 66168, NPS 1/2 3/4 1 1-1/4 1-1/2 2 2-1/2 3 466260, 66264, 66268 DN 15 20 25 32 40 50 65 80 100

A - End to End 6.0 6.0 6.0 6.7 6.7 10.7 12.8 12.8 12.8152 152 152 170 170 272 325 325 325



B - Center to End 4.0 4.0 4.0 4.8 4.8 7.1 8.8 8.8 8.8102 102 102 122 122 180 224 224 224



Weight, Welded 19 19 19 34 34 79 142 142 1429 9 9 16 16 36 65 65 65

Weight, Unwelded 20 20 20 36 36 83 146 146 1469 9 9 17 17 38 66 66 66


WELDED UNWELD.



Dimensions - Globe


*Threaded end valves are limited to Pressure Class 2500



Univalve Piston Check Valves Class 2680 6700 PSI @ 100°F (462.1 BAR @ 38°C)

B Standard Features• Available Body Material







WELDED UNWELD.


* Threaded end valves are limited to Pressure Class 2500.


Figure No. 66170, 66174, 66178, NPS 1/2 3/4 1 1-1/4 1-1/2 2 2-1/2 3 466270, 66274, 66278 DN 15 20 25 32 40 50 65 80 100

A - End to End 6.0 6.0 6.0 6.7 6.7 10.7 12.8 12.8 12.8152 152 152 170 170 272 325 325 325


B - Center to End 4.0 4.0 4.0 4.8 4.8 7.1 8.8 8.8 8.8102 102 102 122 122 180 224 224 224


Weight 14 14 14 22 22 52 86 86 866 6 6 10 10 24 39 39 39



Univalve Stop Valves Class 4500 11,250 PSI @ 100°F (775.9 BAR @ 38°C)






Pressure Class 4500 (PN 760)FIG. NO.

TYPE ENDS NPS (DN)WELDED UNWELD.

96124 96224 Y-Pattern Socket Welding 1/2 (15) thru 2 (50)96128 96228 Y-Pattern Buttwelding 1/2 (15) thru 4 (100)

Figure No. 96124, 96128 NPS 1/2 3/4 1 1-1/4 1-1/2 2 2-1/2 3 496224, 96228 DN 15 20 25 32 40 50 65 80 100

A - End to End 8.2 8.2 8.2 8.2 8.2 12.8 12.8 12.8 12.8208 208 208 208 208 325 325 325 325



B - Center to End 6.1 6.1 6.1 6.1 6.1 8.8 8.8 8.8 8.8155 155 155 155 155 224 224 224 224


G - Handwheel/Handle Diameter 8.5 8.5 8.5 8.5 8.5 16.0** 16.0** 16.0** 16.0**216 216 216 216 216 406** 406** 406** 406**

Weight, Welded 43 43 43 43 43 158 158 158 15820 20 20 20 20 72 72 72 72

Weight, Unwelded 45 45 45 45 45 162 162 162 16221 21 21 21 21 74 74 74 74

** Impactor Handwheel



Univalve Stop-Check Valves Class 4500 11,250 PSI @ 100°F (775.9 BAR @ 38° C)







WELDED UNWELD.



Figure No. 96164, 96168, NPS 1/2 3/4 1 1-1/4 1-1/2 2 2-1/2 3 496264, 96268 DN 15 20 25 32 40 50 65 80 100

A - End to End 8.2 8.2 8.2 8.2 8.2 12.8 12.8 12.8 12.8208 208 208 208 208 325 325 325 325



B - Center to End 6.1 6.1 6.1 6.1 6.1 8.8 8.8 8.8 8.8155 155 155 155 155 224 224 224 224


G - Handwheel/Handle Diameter 8.5 8.5 8.5 8.5 8.5 16.0** 16.0** 16.0** 16.0**216 216 216 216 216 406** 406** 406** 406**

Weight, Welded 43 43 43 43 43 158 158 158 15820 20 20 20 20 72 72 72 72

Weight, Unwelded 45 45 45 45 45 162 162 162 16221 21 21 21 21 74 74 74 74




Univalve Piston Check Valves Class 4500 11,250 PSI @ 100°F (775.9 BAR @ 38°C)








WELDED UNWELD.



Figure No. 96174, 96178, NPS 1/2 3/4 1 1-1/4 1-1/2 2 2-1/2 3 496274, 96278 DN 15 20 25 32 40 50 65 80 100

A - End to End 8.2 8.2 8.2 8.2 8.2 12.8 12.8 12.8 12.8208 208 208 208 208 325 325 325 325


B - Center to End 6.1 6.1 6.1 6.1 6.1 8.8 8.8 8.8 8.8155 155 155 155 155 224 224 224 224

E - Center to Top 5.4 5.4 5.4 5.4 5.4 7.9 7.9 7.9 7.9137 137 137 137 137 201 201 201 201

Weight 35 35 35 35 35 92 92 92 9216 16 16 16 16 42 42 42 42



Univalve Angle Stop Valves Class 1690 4225 PSI @ 100°F (291.4 BAR @ 38°C)



• Unwelded (graphitic seal) or Welded Bonnet.

• OS&Y.• Angle Pattern.• Body-guided investment cast

Stellite disk.• Integral Stellite seat.• Integral Backseat.• Asbestos free graphitic packing.


WELDED UNWELD.

36125 36225 Angle Socket Welding 1/2 (15) thru 2 1/2 (65)36129 36229 Angle Buttwelding 1/2 (15) thru 4 (100)


Figure No. 36125, 36129, NPS 1/2 3/4 1 1-1/4 1-1/2 2 2-1/2 3 436225, 36229 DN 15 20 25 32 40 50 65 80 100

AA - Hub Diameter 2.3 2.3 2.3 3.8 3.8 3.6 4.0 4.0 4.858 58 58 97 97 91 102 102 122

B - Center to End 2.5 2.5 2.5 3.6 3.6 4.1 4.5 4.5 5.364 64 64 91 91 104 114 114 122

E - Center to Top (Open) 11.7 11.7 11.7 14.9 14.9 17.3 19.1 19.1 19.7297 297 297 378 378 439 485 485 500

G - Handwheel/Handle Diameter 8.5 8.5 8.5 14.3* 14.3* 14.3* 16.0** 16.0** 16.0**216 216 216 363 363 363 406 406 406

Weight, Welded 18 18 18 40 40 60 103 103 1398.2 8.2 8.2 18.1 18.1 27.2 46.7 46.7 63.0

Weight, Unwelded 19 19 19 42 42 62 107 107 1438.6 8.6 8.6 19.1 19.1 28.1 48.5 48.5 64.9

Dimensions - AngleBold face numerals are in inches and pounds.Green numerals are in millimeters and kilograms.



Univalve Angle Stop-Check Valves Class 1690 4225 PSI @ 100°F (291.4 BAR @ 38°C)







WELDED UNWELD.



Figure No. 36165, 36169, NPS 1/2 3/4 1 1-1/4 1-1/2 2 2-1/2 3 436265, 36269 DN 15 20 25 32 40 50 65 80 100

AA - Hub Diameter 2.3 2.3 2.3 3.8 3.8 3.6 4.0 4.0 4.858 58 58 97 97 91 102 102 122

B - Center to End 2.5 2.5 2.5 3.6 3.6 4.1 4.5 4.5 5.364 64 64 91 91 104 114 114 122



Weight, Welded 18 18 18 40 40 60 103 103 1398.2 8.2 8.2 18.1 18.1 27.2 46.7 46.7 63.0

Weight, Unwelded 19 19 19 42 42 62 107 107 1438.6 8.6 8.6 19.1 19.1 28.1 48.5 48.5 64.9


Edward Valves • 1900 South Saunders Street, Raleigh, North Carolina 27603 • 1-800-225-6989 • 1-919-832-0525 • Fax 1-919-831-3369 B25* Impactor Handle **Impactor Handwheel

Univalve Angle Check Valves Class 1690 4225 PSI @ 100°F (291.4 BAR @ 38°C)



• Unwelded (graphitic seal) or Welded Cover.

• Angle Pattern.• Body-guided investment cast


without spring, see page G14)


WELDED UNWELD.



Figure No. 36175, 36179, NPS 1/2 3/4 1 1-1/4 1-1/2 2 2-1/2 3 436275, 36279 DN 15 20 25 32 40 50 65 80 100

AA - Hub Diameter 2.3 2.3 2.3 3.8 3.8 3.6 4.0 4.0 4.858 58 58 97 97 91 102 102 122

B - Center to End 2.5 2.5 2.5 3.6 3.6 4.1 4.5 4.5 5.364 64 64 91 91 104 114 114 122

E - Center to Top 4.6 4.6 4.6 5.7 5.7 6.2 7.2 7.2 7.8117 117 117 145 145 157 183 183 198

Weight 8 8 8 21 21 30 41 41 763.6 3.6 3.6 9.5 9.5 13.6 18.6 18.6 34.5



Univalve Angle Stop Valves Class 2680 6700 PSI @ 100°F (462.1 BAR @ 38°C)







WELDED UNWELD.



Figure No. 66125, 66129, NPS 1/2 3/4 1 1-1/4 1-1/2 2 2-1/2 3 466225, 66229 DN 15 20 25 32 40 50 65 80 100

AA - Hub Diameter 2.3 2.3 2.3 3.8 3.8 4.0 4.8 4.8 4.858 58 58 97 97 102 122 122 122

B - Center to End 2.5 2.5 2.5 3.6 3.6 4.5 5.3 5.3 5.364 64 64 91 91 114 122 122 122



Weight, Welded 18 18 18 38 38 76 139 139 1398.2 8.2 8.2 17.2 17.2 34.5 63.0 63.0 63.0

Weight, Unwelded 19 19 19 40 40 80 143 143 1438.6 8.6 8.6 18.1 18.1 36.3 64.9 64.9 64.9




Univalve Angle Stop-Check Valves Class 2680 6700 PSI @ 100°F (462.1 BAR @ 38°C)







WELDED UNWELD.



Figure No. 66165, 66169, NPS 1/2 3/4 1 1-1/4 1-1/2 2 2-1/2 3 466265, 66269 DN 15 20 25 32 40 50 65 80 100

AA - Hub Diameter 2.3 2.3 2.3 3.8 3.8 4.0 4.8 4.8 4.858 58 58 97 97 102 122 122 122

B - Center to End 2.5 2.5 2.5 3.6 3.6 4.5 5.3 5.3 5.364 64 64 91 91 114 122 122 122



Weight, Welded 18 18 18 38 38 76 139 139 1398.2 8.2 8.2 17.2 17.2 34.5 63.0 63.0 63.0

Weight, Unwelded 19 19 19 40 40 80 143 143 1438.6 8.6 8.6 18.1 18.1 36.3 64.9 64.9 64.9




Univalve Angle Check Valves Class 2680 6700 PSI @ 100°F (462.1 BAR @ 38°C)



• Unwelded (graphitic seal) or Welded Cover.

• Angle Pattern.• Body-guided investment cast


without spring, see page G14)


WELDED UNWELD.



Figure No. 66175, 66179, NPS 1/2 3/4 1 1-1/4 1-1/2 2 2-1/2 3 466275, 66279 DN 15 20 25 32 40 50 65 80 100

AA - Hub Diameter 2.3 2.3 2.3 3.8 3.8 4.0 4.8 4.8 4.858 58 58 97 97 102 122 122 122

B - Center to End 2.5 2.5 2.5 3.6 3.6 4.5 5.3 5.3 5.364 64 64 91 91 114 122 122 122

E - Center to Top 4.6 4.6 4.6 5.7 5.7 7.2 7.8 7.8 7.8117 117 117 145 145 183 198 198 198

Weight 8 8 8 23 23 46 76 76 763.6 3.6 3.6 10.4 10.4 20.9 34.5 34.5 34.5



C

Edward Valves

Cast Steel Valves Section C

EV-1004th Edition

Features and Description of Edward Flite-Flow Globe Valves

C

For high pressure/high temperature installation, the Flite-Flowvalve is capable of handling millions of pounds per hour of fluidflow - without sacrificing low pressure drop or piping flexibility.

1. Impactor handwheel - provides manytimes the closing force of an ordinary hand-wheel for positive seating. Impactogear,available on larger sizes, allows cycling byone man utilizing the air wrench adaptor.

2. Thrust bearings minimize torque require-ments and eliminate side loading due to outof position orientation. Smoother operationand longer valve life is possible.

3. Stem guide collar - prevents stem rotationand provides valve position indication.

4. Yoke/Yoke lock ring - the yoke isdesigned for ready access to the packingchamber and the lock ring allows quick disas-sembly for maintenance.

5. Bonnet retainer provides loading to effecta seal at the pressure seal gasket.

6. Bonnet is precision machined, retainspacking and provides an integral hardfacedstem backseat.

7. Yoke bushing material has low coefficientof friction which substantially reduces torqueand thread wear and eliminates galling.

8. Stem has ACME threads, is machined to afine finish and is heat treated for improvedstrength and hardness to resist wear.


10. Composite Pressure seal gasket is apreloaded, pressure energized design forlong reliable service.

11. Disk piston is body guided to eliminatemisalignment, galling and stem bending.

12. Guide ribs - hardfaced on Flite-Flow andsome angle patterns, provide body guidingfor disk/piston assemblies.

13. Integral hardsurfaced seats both bodyand disk provide shutoff and long seat life.


Edward Valves • 1900 South Saunders Street, Raleigh, North Carolina 27603 • 1-800-225-6989 • 1-919-832-0525 • Fax 1-919-831-3369 C2

Parts Specification List for Globe Valves (Stop, Stop-Check,& Piston Lift Check)

C

This is not a complete list. Construction and materials will vary between sizes and pressure classes and may be changed without notice. For a complete, accurate, and itemized description of a particular valve, contact your Edward Valves sales representative.

(1) Through Class 2500, for Series 4500 valves, some construction differences exist. Contact your Edward Valves sales representative for more information.

* Other material grades available on application.

DESCRIPTION(1) ASTM NO. ASTM NO. ASTM NO. ASTM NO. ASTM NO.

Body/Bonnet* A-216 A-217 A-217 A-217 A-351Grade WCB Grade WC6 Grade WC9 Grade C12A Grade CF8M

Disk A-105 A-182 A-182 A-182 A-182 Grade F11 Grade F22 Grade F91 Grade F316

Body-Guided Disk Nut A-216 A-217 A-217 A-217 A-182Grade WCB Grade WC6 Grade WC9 Grade C12A Grade F316

Stem A-182 A-182 A-565 A-565 A-638Grade F6a Grade F6a Grade 616 HT Grade 616 HT Grade 660 T2

Yoke Bushing B-148 B-148 B-148 B-148 B-148Alloy 95400 Alloy 95400 Alloy 95400 Alloy 95400 Alloy 95400

Packing Rings Flexible Graphite inner rings and suitable anti-extrusion rings.

Junk Rings AISI 1117 AISI 1117 AISI 1117 AISI 1117 A-182Cad. Plated Cad. Plated Cad. Plated Cad. Plated Grade F316/Stellite I.D.

Pressure Seal Gasket Composite Pressure Seal Gasket.

Spacer Ring A-668 Grade 4140 A-668 Grade 4140 A-668 L 4140 A-668 L 4140 A-182Cad. Plated Cad. Plated Cad. Plated Cad. Plated Grade F6 CL4

Gasket Retainer A-182 A-182 A-565 A-565 A-638Grade F6 CL4 Grade F6 CL4 Grade 616 HT Grade 616 HT Grade 660 T2

Bonnet Retainer A-216 A-216 A-216 A-216 A-216Grade WCB Grade WCB Grade WCB Grade WCB Grade WCB

Bonnet Retainer Studs A-193 A-193 A-193 A-193 A-193Grade B7 Grade B7 Grade B7 Grade B7 Grade B7

Bonnet Retainer Nuts A-194 A-194 A-194 A-194 A-194Grade 2H Grade 2H Grade 2H Grade 2H Grade 2H

Gland A-148 A-148 A-148 A-148 A-148Grade 90-60 Grade 90-60 Grade 90-60 Grade 90-60 Grade 90-60/Chrome Plated

Eye Bolt A-193 A-193 A-193 A-193 A-193Grade B7/Cad. Plated Grade B7/Cad. Plated Grade B7/Cad. Plated Grade B7/Cad. Plated Grade B7/Cad. Plated

Eye Bolt Nuts A-194 A-194 A-194 A-194 A-194Grade 2/Cad. Plated Grade 2/Cad. Plated Grade 2/Cad. Plated Grade 2/Cad. Plated Grade 2/Cad. Plated

A-182 A-182 A-182 A-182 A-182Eye Bolt Pins Grade F6a Grade F6a Grade F6a Grade F6a Grade F6a

Class 4 Class 4 Class 4 Class 4 Class 4

Stem Guide Collar A-515 A-515 A-515 A-515 A-515Grade 70 Grade 70 Grade 70 Grade 70 Grade 70

Stem Guide Key A-331 A-331 A-331 A-331 A-331Grade 4140 HT Grade 4140 HT Grade 4140 HT Grade 4140 HT Grade 4140 HT

Yoke A-216 A-216 A-216 A-216 A-216Grade WCB Grade WCB Grade WCB Grade WCB Grade WCB

Yoke Lock Ring A-216 A-216 A-216 A-216 A-216Grade WCB Grade WCB Grade WCB Grade WCB Grade WCB

Yoke Lock Ring Studs A-193 A-193 A-193 A-193 A-193Grade B7 Grade B7 Grade B7 Grade B7 Grade B7

Yoke Lock Ring Nuts A-194 A-194 A-194 A-194 A-194Grade 2H Grade 2H Grade 2H Grade 2H Grade 2H

Impactor Handwheel A-126 A-126 A-126 A-126 A-126Class A Class A Class A Class A Class A

Crossarm, Handwheel A-536 A-536 A-536 A-536 A-536Grade 65-45-12 Grade 65-45-12 Grade 65-45-12 Grade 65-45-12 Grade 65-45-12

Handwheel A-536 A-536 A-536 A-536 A-536

Bearing Nut Grade 65-45-12 Grade 65-45-12 Grade 65-45-12 Grade 65-45-12 Grade 65-45-12

Stem Collar A-182 A-182 A-565 A-565 A-638Grade F6a Grade F6a Grade 616 HT Grade 616 HT Grade 660 T2


Features and Description of Edward Stop-Check (Non-Return) Valves

C

Edward stop-check (non-return) valvesoffer the same tight-sealing performanceas Edward stop valves, and at the sametime, give check valve protection in theevent of fluid back flow. Edward stop-checkvalves are commonly used to prevent backflow from a header fed from two or moresources when there is a loss of pressure inone of the sources for example, the boil-er outlet to a common header or at thefeedwater heater outlets.

Elbow Down

Flite-Flow®

Angle

Globe

EqualizerAll Edward cast steel stop-check valves are equipped with an Equalizer pipe.Acting as an external pressure balancing pipeline, the Equalizer connects thezone above the disk with the lower pressure area in the valve outlet (see drawingabove). This reduces pressure above the disk, and as a result, causes the higherpressure below the disk to raise the disk to full lift. The Equalizer helps reducepressure drop and disk-piston movement and wear.

All other features are the same as those defined on page C-2 for stop valves.

Equalizer pipe for full disk lift➡


Features and Description of Edward Check Valves

C

Over 75 years of valve field experiencecoupled with ongoing research anddevelopment programs have led toEdward’s reputation as a leader in sup-plying horizontal, angle, Flite-Flow andElbow Down piston lift check valves.

These check valves all incorporate timeproven design features such as: equaliz-ers for full lift at lower flows; body guideddisk-piston assemblies for seat align-ment and stable operation; integralStellite seating surfaces for long life andtight sealing and streamlined flowshapes for low pressure drop. Edwardmaintains a reputation for the “Preferred”valve in critical high pressure high tem-perature applications.

Flite-Flow® Angle

Globe Elbow Down


Features and Descriptions of Edward One-Piece Tilting Disk Check Valves

C

The Edward tilting disk check valve isdesigned to close as quickly as possible.It minimizes loud, damaging slammingand vibration noises caused when highvelocity reverse flow is allowed to buildup before the completion of closing.

Quick ClosingQuick closing is achieved through a com-bination of several design constructionfeatures. The disk is dome shaped toavoid hesitation of disk motion or closing,common to conventional flat disks. Forminimum pendulum period an impor-tant factor in assuring quick closing the disk pivot is located close to the cen-ter of gravity of the disk.

All disk surfaces are open to line fluid, sothat no dashpot action can delay closing.The disk pivots on pin supports havingchrome-plated bearings for minimumfriction. Totally enclosed torsion springsin the pivot pins help speed the closingaction, although the disk is counter-weighted sufficiently to close automati-cally without aid from the springswhether the valve is in a vertical or hori-zontal position. Since the springs arefully enclosed in the pins, they are notsubject to possible erosive effects of linefluids are foreign matter cannot get in.There is no bolting in the flow stream.

Adjustable Hinge PinsAvailable factory-installed or as a con-version kit, Edward’s unique adjustablehinge pin replaces the usual concentrichinge pins with double offset eccentrichinge pins, making core alignment amatter of simply dialing in the fit.

1. Cover retainer provides loading through thecover retainer and bolting to initiate a seal at thepressure seal gasket.

2. Cover is precision machined to retain pressureintegrity and critical gasket seating surfaces.

3. Composite pressure seal gasket is a pre-loaded pressure energized flexible graphite com-posite for long reliable service.

4. Integral hardsurfaced seats, both body anddisk, provide positive shutoff and long seat life.

5. Springs insure quick closing of the disk by pro-viding a positive seating force to speed closing.

6. Hinge pin provides a disk pivot point close to itscenter of gravity for fast response to flow reversalswhich minimizes water hammer effects.

7. Hinge pin gasket is spiral wound, coated steel,or flexible graphite for long reliable service.

8. Body features a straight thru compact design forlow pressure drop.

9. Disk assembly is dome shaped and counter-weighted for fast response to flow reversals.


Parts Specification List for Edward One-Piece Tilting Disk CheckThis is not a complete list. Construction and materials will vary between sizes and pressure classes and may be changed without notice. For a complete, accurate, and itemized description of a particular valve, contact your Edward Valves sales representative.

C


Body Cover* A-216 A-217 A-217 A-217 A-351

Grade WCB Grade WC6 Grade WC9 Grade C12A Grade CF8M

Disk A-105 A-182 A-182 A-182 A-182

Grade F11 Grade F22 Grade F91 Grade F316

Pressure Seal Composite Pressure Seal GasketGasket*

Spacer Ring A-668 Grade 4140 A-668 Grade 4140 A-668 Grade 4140 A-668 Grade 4140 Grade 182

Cad. Plated Cad. Plated Cad. Plated Cad. Plated Grade F6 CL4

Gasket Retainer A-182 A-182 A-565 A-565 A-638

Grade F6 CL4 Grade F6 CL4 Grade 616 HT Grade 616 HT Grade 660 T2

Cover Retainer A-216 A-216 A-216 A-216 A-216

Grade WCB Grade WCB Grade WCB Grade WCB Grade WCB

Cover Retainer A-193 A-193 A-193 A-193 A-193

Capscrews or Studs Grade B7 Grade B7 Grade B7 Grade B7 Grade B7

Cover Retainer Nuts A-194 A-194 A-194 A-194 A-194

Grade 2H Grade 2H Grade 2H Grade 2H Grade 2H

Hinge Pin GasketSpiral Wound Spiral Wound Spiral Wound Spiral Wound Spiral Wound

Size 2-1/2, 3, 4 Gasket Gasket Gasket Gasket Gasket

(Asb. Free) (Asb. Free) (Asb. Free) (Asb. Free) (Asb. Free)

Hinge Pin Gasket Graphite GasketSize 6 & Larger

Hinge Pin A-182 A-182 A-182 A-565 A-638

Grade F6aCL4 Grade F6aCL4 Grade F6aCL4 Grade 616 HT Grade 660 Type 2

Hinge Pin Bolts A-193 A-193 A-193 A-453 A-453

Grade B7 Grade B16 Grade B16 Grade 660B Grade 660B

Hinge Pin Retainer A-105 A-182 A-182 A-182 A-182

Grade F11 Grade F22 Grade F91 Grade F316

Hinge Pin Springs† A-313 A-313 A-313 A-313 A-313

*Other material grades available on application.**All ANSI Class 600 valves utilize an asbestos free spiral wound bonnet gasket.†Hinge Pin Torsion Springs required in size 6 and larger valves only.


Features and Description of Edward Equiwedge Gate Valves

C

For detailed description of the 2 piece flexible wedge see page C-101.Yoke bushing - material has low coefficientof friction which substantially reduces torqueand thread wear and eliminates galling.2. Weather/Grease seals - are provided toprotect against environmental conditions.3. Yoke - the yoke is designed for readyaccess to the packing chamber.4. Packing and junk ring - utilizes flexiblegraphite packing material with anti-extrusionrings for optimum sealability and life.5. Extended bonnet design - further sepa-rates the packing chamber from fluid flowarea for longer packing life. Also providesaccessible area for leakoff connections ifrequired.6. Composite pressure seal gasket - pre-loaded, pressure energized design, for longreliable service.7. Body guiding system - holds the wedgehalves together and absorbs thrust loads dueto line flow. Integral hardfaced guide systemcomponents reduce friction and preventgalling for longer valve life.8. Conical stem backseat - Cone-on-conedesign provides a reliable sealing geometrythat operates over many valve cycles withoutleakage.9. Body - rugged cast steel body providesmaximum flow efficiency. Information on alter-nate materials can be obtained through yourEdward representative.10. Handwheel - spoke design provides moreefficient transfer of load with minimum weight.11. Tapered roller bearings - on largervalves, tapered roller bearings reduce torque,carry the stem thrust and provide additionalradial support for side loads imposed byhandwheel or power actuator. Smaller sizevalves have needle roller bearings.12. Stem - has ACME threads, is machined toa fine finish and is heat treated for improvedstrength and hardness to resist wear.13. Packing gland - made of alloy steel, andretained against the stuffing box pressure byan easy-to-maintain stud and heavy hex nutassembly.

14. Bonnet retaining ring - assures an effective, tight seal by pulling the bonnet and gasket together at the pressure seal.

15.Yoke lock ring - permits easier field maintenance of upper structure without disturbing pressure containing parts. Valves in smaller sizes utilizea wishbone yoke design. Class 600 valves utilize a bolted pressure seal bonnet.

16. Bonnet backseat - especially hard faced to assure long-term sealability.

17. Hemispherical-type bonnet - reduces valve body height and provides weight savings. Hemispherical-type design results in better pressure dis-tribution across the bonnet area.

18. Two-piece wedge assembly - allows each wedge half to flex and adjust independently to compensate for body distortions caused by thermalchanges or pipe bending stresses. (see pg. C-10)

19. Welded-in seat ring with hardfaced seat - assures better wear and longer valve life. Seat ring is welded into the valve body to prevent leak-age.


Parts Specification List for Gate ValvesThis is not a complete list. Construction and materials will vary between sizes and pressure classes and may be changed without notice. For a complete, accurate, and itemized description of a particular valve, contact your Edward Valves sales representative.

* Hardfaced wedge guide rails and seating surfaces.** Size 2-1/2 thru 6, Class 600 & Size 2-1/2 thru 4, Class 900 also available with bolted bonnet/flat gasket.

C


Body/Bonnet* A-216 A-217 A-217 A-217 A-351Grade WCB Grade WC6 Grade WC9 Grade C12A Grade CF8M

Gate 2-1/2-6 A-743 A-743 A-743 A-732 A-732

Grade CA-28 MWV Grade CA-28 MWV Grade CA-28 MWV Grade 21 Grade 21

Gate 8 and up* A-216 A-217 A-217 A-217 A-351

Grade WCB Grade WC6 Grade WC9 Grade C12A Grade CF8M

Stem A-182 A-182 A-565 A-565 A-638


Yoke Bushing B-148 B-148 B-148 B-148 B-148

Alloy 95400 Alloy 95400 Alloy 95400 Alloy 95400 Alloy 95400

Packing Rings Flexible Graphite inner rings and suitable anti-extrusion rings.

Junk Rings AISI 1117 AISI 1117 AISI 1117 AISI 1117 A-182

Cad. Plated Cad. Plated Cad. Plated Cad. Plated Grade F316/Stellite I.D.

Pressure Seal Gasket** Composite Pressure Seal Gasket.

Spacer Ring A-668 Grade 4140 A-668 Grade 4140 A-668 Grade 4140 A-668 Grade 4140 A-182

Cad. Plated Cad. Plated Cad. Plated Cad. Plated Grade F6 CL4

Gasket Retainer A-182 A-182 A-565 A-565 A-638


Bonnet Retainer A-515 A-515 A-515 A-515 A-515

Grade 70 Grade 70 Grade 70 Grade 70 Grade 70

Bonnet Retainer Studs A-193 A-193 A-193 A-193 A-193

Grade B7 Grade B7 Grade B7 Grade B7 Grade B7

Bonnet Retainer Nuts A-194 A-194 A-194 A-194 A-194


Gland A-148 A-148 A-148 A-148 A-148

Grade 90-60 Grade 90-60 Grade 90-60 Grade 90-60 Grade 90-60/Chrome Plated

Gland Studs A-193 A-193 A-193 A-193 A-193

Grade B7/Cad. Plated Grade B7/Cad. Plated Grade B7/Cad. Plated Grade B7/Cad. Plated Grade B7/Cad. Plated

Gland Nuts A-194 A-194 A-194 A-194 A-194

Grade 2/Cad. Plated Grade 2/Cad. Plated Grade 2/Cad. Plated Grade 2/Cad. Plated Grade 2/Cad. Plated

Yoke A-216 A-216 A-216 A-216 A-216


Yoke Lock Ring A-216 A-216 A-216 A-216 A-216


Yoke Lock Ring Studs A-193 A-193 A-193 A-193 A-193

Grade B7 Grade B7 Grade B7 Grade B7 Grade B7

Yoke Lock Ring Nuts A-194 A-194 A-194 A-194 A-194


Handwheel A-126 A-126 A-126 A-126 A-126

Class A Class A Class A Class A Class A


Features and Description of Edward Equiwedge Gate Valves

Unique 2-Piece Flexible WedgeWedging action provides tight seatsealing, even at low differential pres-sures. Wedge guiding by grooves inbody minimizes seat wear and dam-age, since seating surfaces ofwedge and body are in contact overless than 5% of total travel. Two sep-arate flexible wedge halves are freeto align with seats even when theyare tilted or rotated due to thermaleffects or piping loads. Resistance tothermal binding assures openingwith a torque or load less than designclosing load.

Wedge guide area and strength pro-vides capability to support high dif-ferential pressures with valve partial-ly open, so Equiwedge gate valvescan be opened or closed under“blowdown” conditions. By-passesare not required if full differential isspecified for actuator sizing.

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Figure 1The outstanding design feature of theEquiwedge gate valve is unique two-piece wedge that permits maximumindependence and flexibility for goodsealability and freedom from sticking.

Two-Piece Wedge

BodyGroove

HardfacedWedge Guide Rails Wedge Halves

BodyHardfacedWedge Seat

Figure 2The body groove extends high in thebody neck region so that in the openposition the wedge assembly is bothtrapped and fully guided. Bodygrooves are hardfaced in stainlesssteel and critical service valves.

Guiding System

Body Grooves

Body

Welded-inSeat Ring

HardfacedWedge Guide Rails

Figure 3Wedge halves are separated theproper amount by a spacer ring whichprovides controlled deflection fromstem loading. Use of a space andweight-saving “captured stem” (shownhere and in Figure 4) is possiblebecause of the two-piece wedgedesign.

Back Face of Wedge Half

Non-revolvingStem

Spacer Ring

Wedge Half

Figure 4The Equiwedge two-piece wedgedesign allows the use of a space andweight saving “captured stem.”

“Captured Stem”

Stem SeatingShoulder

StemBackseat

Wedge Half Wedge Half

Some valve designs are capable of sealingsimultaneously against a pressure differentialbetween an internal cavity of the valve and theadjacent pipe in both directions. All doubleseated gate valves, including Equiwedge, areexample of such a design. In fact, seat jointintegrity for these valves is tested in the facto-ry by pressurizing the center cavity and simul-taneously examining each seat. However, if afluid is entrapped in such a valve while closed,and then subsequently heated, a dangerousrise in pressure can result thus leading to pres-sure boundary failure.

Both ASME/ANSI B16.34 (Valves - Flanged,Threaded and Welding End), para 2.3.3 andANSI/ASME B31.1 (Pressure Piping Code),para 107.1(c), recognize this situation andrequire that the Purchaser shall provide means

in design, installation and/or operation toassure that the pressure in the valve shall notexceed the rated pressure for the attainedtemperature. Therefore, if deemed necessaryby the Purchaser, and so specified in the pur-chase order, Edward Valves can provide anequalizer system (internal or external) that willrelieve this trapped fluid to the upstream pipingor a relief valve that will exhaust excessivepressure to some other specified area. Itshould be understood that an internal or exter-nal equalizer will change a basically by-direc-tional gate valve to a design with fully effectiveseat sealing in only one direction. The equaliz-er bypasses the upstream seat and wouldallow leakage by that seat if the pressureshould be reversed. The “downstream” seatwould become the “upstream” seat with pres-sure reversed; the wedging action provided by

stem load provides good upstream seat seal-ing at low to moderate pressures, but leakagecould be excessive at high pressures.

Excessive pressure trapped in the center cav-ity of a gate valve can also produce “pressurelocking” a condition that can make openingdifficult or impossible. Either an internal or anexternal equalizer will prevent pressure lock-ing. However, a relief valve may allow the cen-ter cavity pressure to be higher than either theupstream or downstream pressure, and thiscan allow pressure locking to occur. Edward’sunique ACCEV (Automation Center CavityEqualizing Valve) can alleviate this problem.Refer to section F, page F4 for additional infor-mation.

Center Cavity Overpressurization



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Standard Features• Bodies and bonnets are cast

steel (WCB & WC6).• Bolted Bonnet, OS & Y.• Globe & angle design.• Integral Stellite seat, disk and

backseat.• Body-guided disk piston.• 13% chromium stainless steel

stem.• Asbestos free graphitic packing.• Long Terne# steel gasket

Figure No. 318/318Y, 319/319Y, NPS 2-1/2 3 4 5 6 8 10 12329/329Y DN 65 80 100 125 150 200 250 300

C - Face to Face, Globe (Flanged)• —12.5 14 15.76 17.5 22 24.5 28318 356 400 445 559 622 711

D - Center to Face, Angle (Flanged)• 5.75 6.25 7 7.88 8.75 11 12.25 14146 159 178 200 222 279 310 356

E - Center to Top, Globe (Open) —16.2 16.7 20.1 24.8 28.4 34.3 39.7411 424 510 630 721 871 1008

F - Center to Top, Angle (Open) 13.6 14.4 14.6 17.7 21.4 24.2 28.8 32.9345 366 371 450 544 615 731 836

G - Handwheel/Handle Diameter* 11 11.5 11.5 15 18 22 22 26279 292 292 381 457 559 559 660

Weight, Globe (Flanged) —100 193 226 370 525 895 152045 88 103 168 238 406 689

Weight, Globe (Welding) —80 95 172 295 400 720 127036 43 78 134 181 327 576

Weight, Angle (Flanged) 65 94 126 210 300 425 710 125029 43 57 95 136 193 322 561

Weight, Angle (Welding) 55 70 85 152 225 325 530 97025 32 39 69 102 147 240 440

FIG. NO. TYPE ENDS NPS (DN)318 Globe Flanged 3 (80)thru

318Y Globe Buttwelding 12 (300)319 Angle Flanged 2-1/2 (65)

319Y Angle Buttwelding thru 12 (300)329 Angle Threaded

2-1/2 (65)329Y Angle Socket Welding

* Regular handwheel standard on all sizes except size 12 has an impactor handwheel and size 2-1/2 has an impactor handle.• Center to end or end to end dimensions for welding end valves same as center to contact face or contact face to contact face

dimensions for flanged end valves.# Long Terne Steel is a product coated by immersion in molten terne metal.

Terne Metal is an alloy of lead and a small amount (about 3%) of tin.

Dimensions - Globe & Angle


Bold face numerals are in inches and pounds.Blue numerals are in millimeters and kilograms.



C


steel (WCB, WC6).• Bolted or OS & Y.• Y-Pattern.• Integral Stellite seat, disk and


stem.• Asbestos free graphitic packing.• Gasket:

− Size 2-1/2 - 4 − asbestos free, spiral wound

− All others − Long Terne# steel.

Dimensions - Flite-Flow®

# Long Terne Steel is a product coated by immersion in molten terne metal. Terne Metal is an alloy of lead and a small amount (about 3%) of tin.

** Impactor handwheel standard on 10" and larger Flite-Flow Valves. Impactor handle standard on 2-1/2” valve.

Figure No. 1314/1314Y NPS 2 1/2 3 4 6 8 10 12 14 161324/1324Y DN 65 80 100 150 200 250 300 350 400

A1- End to End (Welding)11.5 13 15.5 20 26.5 31 40 40 42292 330 394 508 673 787 1016 1016 1067

A2- Face to Face (Flanged)11.5 16 20.25 23.75 29 34.75 43 43.25 44292 406 514 603 737 883 1092 1099 1118

E - Center to Top (Open)16 17.2 22 29 35 41 47.8 47.8 47.8406 437 559 737 889 1041 1213 1213 1213

G - Handwheel Diameter**11 11.5 15 22 22 26 30 30 30279 292 381 559 559 660 762 762 762

Weight (Welding)56 100 150 300 575 1030 1500 1525 157525 45 68 136 261 468 682 693 716

Weight (Flanged) 70 130 200 380 700 1200 1750 1850 195032 59 91 173 318 545 795 841 886

FIG. NO. TYPE ENDS NPS (DN)1314 Flite-Flow Flanged 2-1/2 (65)

1314Y Flite-Flow Buttwelding thru 16 (400)

Pressure Class 300 (PN 50)*

* Size 3&4 Buttweld Valves are Class 400. See page C17.


G

A

E


1324 Flite-Flow Threaded2-1/2 (65)

1324Y Flite-Flow Socket Welding

Stop-Check (Non-Return) Valves Class 300 740 PSI @ 100°F (51.0 BAR @ 38°C)

C


steel (WCB & WC6).• Bolted Bonnet, OS & Y.• Globe & angle design.• Integral Stellite seat, disk and


stem.• Asbestos free graphitic packing.• Gasket:

− Size 2-1/2 − asbestos free, spiral wound− All others − Long Terne# steel.

• Equipped with equalizer.

Figure No. 303/303Y, 304/304Y NPS 2-1/2 3 4 5 6 8 10 12DN 65 80 100 125 150 250 250 300

C - Face to Face, Globe• —12.5 14 15.76 17.5 22 24.5 28318 356 400 445 559 622 711

D - Center to Face, Angle• 5.75 6.25 7 7.88 8.75 11 12.25 14146 159 178 200 222 279 310 356

E - Center to Top, Globe —16.2 16.7 20.1 24.8 28.4 34.3 39.7411 424 510 630 721 871 1008

F - Center to Top, Angle 13.6 14.4 14.6 17.7 21.4 24.2 28.8 32.9345 366 371 450 544 615 731 836

G - Handwheel/Handle Diameter* 11 11.5 11.5 15 18 22 22 26279 292 292 381 457 559 559 660

H - Clearance for Equalizer 5.9 8.7 8.5 10 9.6 11 13.7 15150 221 216 254 244 279 348 381

Weight, Globe (Flanged) —100 110 230 370 525 920 152545 50 104 168 238 417 692

Weight, Globe (Welding) —75 95 175 295 400 765 136534 43 79 134 181 327 619



FIG. NO. TYPE ENDS NPS (DN)304 Globe Flanged 3 (80) thru

304Y Globe Buttwelding 12 (300)303 Angle Flanged 2-1/2 (65) thru

303Y Angle Buttwelding 12 (300)



* Regular handwheel standard on all sizes except size 12 has an impactor handwheel and size 2-1/2 has an impactor handle.• Center to end or end to end dimensions for welding end valves same as center to contact face or contact face to contact

face dimensions for flanged end valves.# Long Terne Steel is a product coated by immersion in molten terne metal.

Terne Metal is an alloy of lead and a small amount (about 3%) of tin.


304



C


steel (WCB, WC6).• Bolted bonnet, OS & Y.• Y-Pattern.• Integral Stellite seat, disk

and backseat.• Body-guided disk piston.• 13% chromium stainless

steel stem.• Asbestos free graphitic

packing.• Gasket:

−Size 2-1/2 - 4 − asbestos free, spiral wound

−All others − Long Terne#

steel.• Equipped with equalizer.


Figure No. 1302/1302Y NPS 2-1/2 3 4 6 8 10 12 14 16DN 65 80 100 150 200 250 300 350 400

A1- End to End (Welding) 11.5 13 15.5 20 26.5 31 40 40 42292 330 394 508 673 787 1016 1016 1067

A2- Face to Face (Flanged) 11.5 16 20.25 23.75 29 34.75 43 43.25 44292 406 514 603 737 885 1092 1099 1118

E - Center to Top (Open) 16 17.2 22 29 35 41 47.8 47.8 47.8406 437 559 737 889 1041 1213 1213 1213

G - Handwheel Diameter** 11 11.5 15 22 22 26 30 30 30279 292 381 559 559 660 762 762 762

Weight (Welding) 56 100 150 300 575 1030 1500 1525 157525 45 68 136 261 468 682 693 716

Weight (Flanged) 70 130 200 380 700 1200 1750 1850 195032 59 91 173 318 545 795 841 886

# Long Terne Steel is a product coated by immersion in molten terne metal. Terne Metal is an alloy of lead and a small amount (about 3%) of tin.

** Impactor handwheel standard on 10 NPS & larger Flite-Flow Valves. 2-1/2 NPS has impactor handle.

FIG. NO. TYPE ENDS NPS (DN)1302 Flite-Flow Flanged 2-1/2 (65) thru

1302Y Flite-Flow Buttwelding 16 (400)





A H

E

G

Check Valves Class 300 740 PSI @ 100°F (51.0 BAR @ 38°C)

C

394

Figure No. 391/391Y, 394/394Y, NPS 2-1/2 3 4 5 6 8 10 12393/393Y DN 65 80 100 125 150 200 250 300

C - Face to Face, Globe• — 12.5 14 15.76 17.5 22 24.5 28318 356 400 445 559 622 711

D - Center to Face, Angle• 5.75 6.25 7 7.88 8.75 11 12.25 14146 159 178 200 222 279 310 356

E - Center to Top, Globe — 6.58 7.08 8.88 11.4 13.1 15.9 18.5167 180 226 290 333 405 470

F - Center to Top, Angle 3.88 4.82 4.96 6.44 8.04 8.9 10.5 11.799 122 126 164 204 226 267 297

H - Clearance for Equalizer 5.9 8.7 8.5 10 9.6 11 13.7 15150 221 216 254 244 279 348 381

Weight, Globe (Flanged) — 85 120 195 320 470 835 128039 54 88 145 213 379 581

Weight, Globe (Welding) — 60 85 141 250 350 620 105027 39 64 113 159 281 476



Standard Features• Bodies and covers are cast steel

(WCB & WC6).• Bolted cover.• Globe & angle design.• Integral Stellite seat and disk.• Body-guided disk piston.• Gasket:

− Size 2-1/2 − asbestos free, spiral wound

− All others − Long Terne# steel• Equipped with equalizer.

FIG. NO. TYPE ENDS NPS (DN)391 Angle Threaded 2-1/2 (65)

391Y Angle Socket Welding394 Globe Flanged 3 (80) thru

394Y Globe Buttwelding 12 (300)393 Angle Flanged 2-1/2 (65) thru

393Y Angle Buttwelding 12 (300)


• Center to end or end to end dimensions for welding end valves same as center to contact face to contact face dimensions for flanged end valves.# Long Terne Steel is a product coated by immersion in molten terne metal. Terne Metal is an alloy of lead and a small amount (about 3%) of tin.





C


Figure No. 1392/1392Y NPS 2-1/2 3 4 6 8 10 12 14 16DN 65 80 100 150 200 250 300 350 400

A1- End to End (Welding) 11.5 13 15.5 20 26.5 31 40 40 42292 330 394 508 673 787 1016 1016 1067

A2- Face to Face (Flanged) 11.5 16 20.25 23.75 29 34.75 43 43.25 44292 406 514 603 737 883 1092 1099 1118

E - Center to Top/Check Valve 7 8 11 13.5 17 20 25.5 25.5 25.5178 203 279 343 432 508 648 648 648

Weight (Welding) 40 70 105 210 400 700 1050 1075 112518 32 48 95 182 318 477 489 511

Weight (Flanged) 54 100 150 290 520 875 1300 1400 150025 45 68 132 236 398 591 636 682

# Long Terne Steel is a product coated by immersion in molten terne metal. Terne Metal is an alloy of lead and a small amount (about 3%)of tin.


(WCB & WC6).• Bolted cover.• Y-Pattern.• Integral Stellite seat and disk.• Body-guided disk piston.• Gasket:

− Size 2-1/2 - 4 − asbestos free, spiral wound

− All others − Long Terne# steel• Equipped with equalizer.

FIG. NO. TYPE ENDS NPS (DN)1392 Flite-Flow Flanged 2-1/2 (65)

1392Y Flite-Flow Buttwelding 16 (400)




1390 Flite-Flow Threaded2-1/2 (65)

1390Y Flite-Flow Socket Welding

A

E

H



C


steel (WCB, WC6).• Bolted bonnet, OS & Y.• Y-Pattern.• Integral Stellite seat, disk and


stem.• Asbestos free graphitic packing.• Long Terne# steel gasket.

FIG. NO. TYPE ENDS NPS (DN)

1314Y Flite-Flow Buttwelding**3 (80)

thru 4 (100)



Figure No. 1314Y NPS 3 4DN 80 100

A1- End to End (Welding) 14 15.5356 394

E - Center to Top (Open) 16 22406 559

G - Handwheel Diameter** 11.5 16292 406

Weight (Welding) 100 15045 68

# Long Terne Steel is a product coated by immersion in molten terne metal.Terne Metal is an alloy of lead and a small amount (about 3%) of tin.

** Impactor handwheel standard.


G

A

E



C


steel (WCB, WC6).• Bolted or pressure-seal

bonnet, OS & Y.• Y-Pattern.• Integral Stellite seat, disk



packing.• Long Terne# steel gasket.• Equipped with equalizer.


1302Y Flite-Flow Buttwelding3 (80)

thru 4 (100)




A - End to End (Welding) 14 15.5356 394


G - Handwheel Diameter** 11.5 16292 406

H - Equalizer Clearance 8.0 9.5203 241



** Impactor handwheel standard.


A H

E

G


C

Standard Features• Bodies and covers are cast

steel (WCB, WC6).• Bolted cover.• Y-Pattern.• Integral Stellite seat and disk.• Body-guided disk piston.• Long Terne# steel gasket.• Equipped with equalizer.


1392Y Flite-Flow Buttwelding3 (80)

thru 4 (100)





E - Center to Top/Check Valve 8 11203 279

H - Equalizer Clearance 8.0 9.5203 241




A H

E


C


steel (WCB, WC6, WC9, C12A).• Bolted or pressure-seal bonnet,

OS & Y.• Globe or angle.• Integral Stellite seat, disk and


stem.• Asbestos free graphitic packing.• Long Terne# steel or composite

pressure-seal gasket.

FIG. NO.TYPE ENDS BONNET NPS (DN)

STD CL SPL CL

616 Globe Flanged Bolted Pressure Seal8 (200) thru 14 (350)

616Y 716Y Globe Buttwelding Bolted Pressure Seal617 Angle Flanged Bolted Pressure Seal 8 (200) thru 14 (350),

617Y 717Y Angle Buttwelding Bolted Pressure-Seal 24(600),28(700)&30(750)618 Globe Flanged Bolted

618Y Globe Buttwelding Bolted 2-1/2 (65) thru 6 (150)619 Angle Flanged Bolted

619Y Angle Buttwelding Bolted


Figure No. 616/616Y, 617/617Y, 618/ NPS 2-1/2 3 4 5 6 8 10 12 14618Y, 619/619Y, 716Y, 717Y DN 65 80 100 125 150 200 250 300 350

C - Face to Face, Globe • 13 14 17 20 22 26 31 33 35330 356 432 508 559 660 787 838 889

D - Center to Face, Angle • 6.5 7 8.5 10 11 13 15.5 16.5 17.5165 178 216 254 279 330 394 419 445

E - Center to Top, Globe 16.2 16.7 20.1 24.8 28.4 34.3 39.7 43.6 47411 424 511 630 721 871 1008 1107 1194

F - Center to Top, Angle 14.4 14.6 17.7 21.4 24.2 28.8 32.9 36.1 38.8366 371 450 544 615 731 836 917 986

G - Handwheel/Handle Diameter** 12 12 14 16 16 20 26 30 30305 305 356 406 406 508 660 762 762

Weight, Globe (Flanged) 110 135 245 425 525 900 1550 2200 264050 61 111 193 238 408 703 998 1198

Weight, Globe (Welding) 90 110 180 315 400 750 1200 1850 225041 50 82 143 181 340 544 839 1021

Weight, Angle (Flanged) 100 122 228 355 460 730 1230 1790 212045 55 103 161 209 331 558 812 962

Weight, Angle (Welding) 100 125 170 245 350 540 950 1450 176045 57 77 111 159 245 431 658 798

Bold face numerals are in inches and pounds.Blue numerals are in millimeters and kilograms.Dimensions - Globe & Angle*

* Angle valves only, are also available in Sizes 24, 28, and 30. Dimensions available upon request.** Impactor handwheel is standard on all size valves.• Center to end or end to end dimensions for welding and valves same as center to contact face or contact face to contact face

dimensions for flanged end valves.



C

Figure No. 614Y/714Y NPS 3 4 6 8 10 12 14 16 20 24 26 28 32614*** DN 80 100 150 200 250 300 250 400 500 600 650 700 800

A1 - End to End, (Welding) 13 15.5 20 26 31 38 38 41 60 66 70 81.5 90330 394 508 660 788 965 965 1041 1524 1676 1778 2070 2286

A2 - Face to Face, (Flanged) 16.75 21.25 29 33 39 43 43 52 * * * * *425 540 737 838 991 1092 1092 1321

E - Center to Top, (Open) 17.5 21.5 28.5 34 42 49 49 74 71 * * * *445 546 724 864 1067 1245 1245 1880 1803

G - Handwheel Diameter 12 14 16 20 26 30 30 48 48 * * * *305 356 406 508 660 762 762 1219 1219

Weight, (Welding) 110 150 450 850 1400 2050 2050 5500 9200 * * * *50 68 204 385 635 930 930 2495 4173

Weight, (Flanged) 150 240 570 1000 1800 2450 2550 6500 * * * * *68 109 259 454 816 1111 1157 2948

* Dimensions and information supplied upon request.** Impactor handwheel standard on all Flite-Flow Valves.***Flanged valves are available in sizes 3 through 16.

Dimensions - Flite-Flow®Bold face numerals are in inches and pounds.Blue numerals are in millimeters and kilograms.


STD CL SPL CL

614*** Flite-Flow Flanged *Pressure Seal 3 (80)614Y 714Y Flite-Flow Buttwelding *Pressure Seal thru 32 (800)



steel (WCB, WC6, WC9, C12A).• Pressure-seal bonnet, OS & Y.• Y-Pattern.• Integral Stellite seat, disk and


stem.• Asbestos free graphite packing.• Spiral wound or composite

pressure-seal gasket.

* 3&4 Bolted bonnet with asbestos free spiral wound gasket* Size 3&4 Buttweld Valves are Class 700. See page C28.



C


STD CL SPL CL

1611 Equiwedge Gate Flanged Bolted Pressure-Seal 2-1/2 (65) thru 28 (700)1611Y 1711Y Equiwedge Gate Buttwelding Bolted Pressure-Seal

1611BY 1711BY Venturi Pattern Buttwelding Bolted Pressure-Seal 8 (200) thru 32 (800)Equiwedge Gate

A1611 Equiwedge Gate Flanged Bolted 2-1/2 (65) thru 6 (150)A1611Y Equiwedge Gate Buttwelding


* Flanges to size 24 only.

Figure No. 1611/1611Y, 1711Y, NPS 2-1/2 3 4 6 8 10 12 14A1611/A1611Y DN 65 80 100 150 200 250 300 350

A - End to End (Welding) 10 10 12 18 23 28 32 35254 254 305 457 584 711 813 889

C - Face to Face (Flanged) 13 14 17 22 26 31 33 35330 356 432 559 660 787 838 889

E - Center to Top, (Open) 22.25 22.25 25.5 31.75 39.75 48 54 58.5565 565 648 806 1010 1219 1372 1486

G - Handwheel Diameter 14 14 14 24 24 30 30 36356 356 356 610 610 762 762 914

Weight (Welding) 81 81 175 372 667 1050 1623 234537 37 79 169 303 476 738 1066

E - Center to Top, (Open) A1611/A1611Y 22.5 22.5 24 27.38572 572 610 695

Weight (Welding) A1611Y 130 130 175 39059 59 79 177

Bold face numerals are in inches and pounds.Blue numerals are in millimeters and kilograms.Dimensions - Equiwedge Gate

* E, G, and other dimensions and information supplied upon request.# Long Terne Steel is a product coated by immersion in molten terne metal. Terne Metal is an alloy of lead and a small amount (about 3%) of tin.


steel (WCB, WC6, WC9, C12A).• Bolted or bolted pressure-seal

bonnet OS & Y.• Integral Stellite seats and back-

seat.• Two-piece body-guided wedge.• 13% chromium stainless steel

stem.• Asbestos free graphitic packing.• Long Terne# steel or composite

pressure-seal gasket.• Available in standard or venturi

pattern.• Yoke bushing thrust bearings.

Figure No. 1611/1611Y, 1711Y NPS 16 18 20 22 24 26 28DN 400 450 500 550 600 650 700

A - End to End (Welding) 39 43 47 51 55 57 61991 1092 1194 1295 1397 1448 1549

C - Face to Face (Flanged) 39 43 47 51 55 57 61991 1092 1194 1295 1397 1448 1549

E - Center to Top, (Open) 67 76 82.75 89 96 101 110.51702 1930 2102 2261 2438 2565 2807

G - Handwheel Diameter 36 36 36 48 48 48 48914 914 914 1219 1219 1219 1219

Weight (Welding) 2950 3600 5000 5700 6500 8000 10,0001338 1633 2268 2585 2948 3628 4535




C

Figure No. 1611BY, 1711BY NPS 20x18x20 22x20x22 24x20x24 26x22x26 28x24x28 30x26x30 32x28x32DN 500 550 600 650 700 750 800


E - Center to Top, (Open) 76 82.75 82.75 89 96 101 110.51930 2102 2102 2261 2438 2565 2807


Weight (Welding) 3600 5000 5700 6500 7000 8500 10,5001633 2268 2585 2948 3175 3855 4762

Dimensions - Equiwedge Gate Venturi Pattern

Figure No. 1611BY, 1711BY NPS 8x6x8 10x8x10 12x10x12 14x12x14 16x14x16 18x16x18DN 200 250 300 350 400 450

A - End to End (Welding) 18 23 28 32 35 39457 584 711 813 889 991

E - Center to Top, (Open) 31.75 39.75 48 54 58.5 67806 1010 1219 1372 1486 1702

G - Handwheel Diameter 24 24 30 30 36 36610 610 762 762 914 914

Weight (Welding) 372 610 1114 1623 2345 2950169 277 506 738 1066 1338




C


C - Face to Face, Globe** 13 14 17 20 22 26 31 33 35330 356 432 508 559 660 787 838 889

D - Center to Face, Angle** 6.5 7 8.5 10 11 13 15.5 16.5 17.5165 178 216 254 279 330 394 419 445

E - Center to Top, Globe 16.2 16.7 20.1 24.8 28.4 34.3 39.7 43.6 47411 424 511 630 721 871 1008 1107 1194


G - Handwheel Diameter# 12 12 14 16 16 20 26 30 30305 305 356 406 406 508 660 762 762

H - Clearance for Equalizer 8.7 8.5 10 9.6 11 11.8 13 13.7 15.7221 216 254 244 279 300 330 348 399





Bold face numerals are in inches and pounds.Blue numerals are in millimeters and kilograms.Dimensions - Globe & Angle*

* Angle valves only, are also available in Sizes 24, 28, and 30. Dimensions available upon request.** Center to end or end to end dimensions for welding and valves same as center to contact face or contact face to contact face dimensions for

flanged end valves.# Impactor handwheel is standard on all size valves.


STD CL SPL CL

604 Globe Flanged Bolted604Y Globe Buttwelding Bolted 2-1/2 (65) thru 6 (150)605 Angle Flanged Bolted

605Y Angle Buttwelding Bolted606 Globe Flanged Pressure-Seal 8 (200) thru 14 (350)

606Y 706Y Globe Buttwelding Pressure-Seal607 Angle Flanged Pressure-Seal 8 (200) thru 14 (350)

607Y 707Y Angle Buttwelding Pressure-Seal 24(600),28(700)&30(750)



steel (WCB, WC6, WC9 C12A).• Bolted or pressure-seal

bonnet OS & Y.• Globe or angle.• Integral Stellite seat, disk



packing.• Long terne# steel or

composite pressure seal gasket.

• Equipped with equalizer.



C


steel (WCB, WC6, WC9,C12A).

• Bolted or pressure-seal bonnet, OS & Y.

• Y-Pattern.• Integral Stellite seat, disk



packing.• Spiral wound or composite

pressure seal gasket.• Equipped with equalizer.

Figure No. 602Y/702Y NPS 3 4 6 8 10 12 14 16 20 24 26 28 32***602 DN 80 100 150 200 250 300 250 400 500 600 650 700 800

A1 - End to End, (Welding) 13 15.5 20 26 31 38 38 41 60 66 70 81.5 90356 394 508 660 787 965 965 1041 1524 1676 1778 2070 2286

A2 - Face to Face, (Flanged) 16.75 21.25 29 33 39 43 43 52 * * * * *425 540 737 838 991 1092 1092 1321

E - Center to Top, (Open) 17.5 21.5 28.5 34 42 49 49 74 71 * * * *445 546 724 864 1067 1245 1245 1880 1803

G - Handwheel Diameter 12 14 16 20 26 30 30 48 48 * * * *305 356 406 508 660 762 762 1219 1219

H - Equalizer Clearance 7 9 10 12 13 14 14 22 24 * * * *178 229 254 305 330 356 356 559 610

Weight, (Welding) 110 150 450 850 1400 2050 2050 5500 9200 * * * *50 68 204 385 635 930 930 2495 4173

Weight, (Flanged) 150 240 570 1000 1800 2850 3100 6500 * * * * *68 109 259 454 816 1293 1406 2948

* E, G, and other dimensions and information supplied upon request.** Impactor handwheel standard on all Flite-Flow Valves.***Flanged valves available in sizes 3 thru 16.

Dimensions - Flite-Flow® Bold face numerals are in inches and pounds.Blue numerals are in millimeters and kilograms.


STD CL SPL CL

***602 Flite-Flow Flanged Pressure-Seal* 3 (80) thru 602Y 702Y Flite-Flow Buttwelding Pressure-Seal* 32 (800)


* Size 3&4 - Bolted bonnet with asbestos free spiral wound gasket.* Size 3&4 Buttweld Valves are Class 700. See page C28.



C


(WCB, WC6, WC9, C12A).• Bolted or pressure-seal cover.• Y-Pattern, globe, angle, or tilting

disk.• Integral Stellite seats.• Body-guided disk piston, globe,

angle & Flite-Flow.• Long Terne# steel or pressure-

seal gasket.• Equipped with equalizer, globe,

angle & Flite-Flow.


STD CL SPL CL

670Y 770Y Tilting Disk Buttwelding Bolted 6 (150) thru 20 (500)690 Globe Flanged Bolted

690Y Globe Buttwelding Bolted 2-1/2 (65) thru 6 (150)691 Angle Flanged Bolted

691Y Angle Buttwelding Bolted***692 — Flite-Flow Flanged *Bolted Pressure Seal 3 (80) thru 692Y 792Y Flite-Flow Buttwelding *Bolted Pressure Seal 32 (800)694 Globe Flanged Bolted Pressure Seal

694Y 794Y Globe Buttwelding Bolted Pressure Seal 8 (200) thru 14 (350)695 Angle Flanged Bolted Pressure Seal

695Y 795Y Angle Buttwelding Bolted Pressure Seal



C - Face to Face, Globe (Flanged)• 13 14 17 20 22 26 31 33 35330 356 432 508 559 660 787 838 889

D - Center to Face, Angle (Flanged)• 6.5 7 8.5 10 11 13 15.5 16.5 17.5165 178 216 254 279 330 394 419 445

E - Center to Top, Globe 6.6 7.1 8.9 11.4 13.1 17.3 20.2 23.2 25.1168 180 226 290 333 439 513 589 638


H - Clearance for Equalizer 8.7 8.5 10 9.6 11 11.8 13 13.7 15.7221 216 254 244 279 300 330 348 399





Bold face numerals are in inches and pounds.Blue numerals are in millimeters and kilograms.Dimensions - Globe & Angle

• Center to end or end to end dimensions for welding end valves same as center to contact face or contact face to contact face dimensions for flanged end valves.# Long Terne Steel is a product coated by immersion in molten terne metal. Terne Metal is an alloy of lead and a small amount (about 3%) of tin.

***Flanged valves available in sizes 3 to 16.

* Size 3&4 - Bolted bonnet with Long Terne # steel gasket.* Size 3&4 Buttweld Flite-Flow Valves are Class 700. See page C29.



C

Figure No. 670Y/770Y NPS 6 8 10 12 14 16 18 20DN 150 200 250 300 350 400 450 500

A - End to End (Welding) 19.5 22 28.5 34.5 34.5 43.25 48.25 53.5495 559 724 876 876 1099 1226 1359

E - Center to Top 9.5 10.5 13.5 15.5 15.5 20.5 22.5 23.75241 267 343 394 394 521 572 603

W - Width 15.25 17.5 21 25 25 32.25 34 38.5387 445 533 635 635 819 864 978

Weight (Welding) 300 500 950 1450 1550 2550 3550 5650136 225 428 653 698 1148 1598 2543

Figure No.692Y/792Y NPS 3 4 6 8 10 12 14 16 20 24 26 28 32***692 DN 80 100 150 200 250 300 250 400 500 600 650 700 800

A - End to End (Welding) 13 15.5 20 26 31 38 38 41 60 66 70 81.5 90330 394 508 660 787 965 965 1041 1524 1676 1778 2070 2286

A2 -Face to Face (Flanged) 16.75 21.5 29 33 39 43 43 52 * * * * *425 540 737 838 991 1092 1321 1321 * * * − −

E - Center to Top 7 11 15.75 17.75 21.25 25.25 25.25 31.5 36.0 * * * *178 279 400 451 540 641 641 800 914

H - Equalizer Clearance 7 9 10 12 13 14 14 22 24 * * * *178 229 254 305 330 356 356 559 610 * * * *

Weight (Welding) 80 125 375 575 1000 1450 1450 3300 * * * * *35 55 170 261 454 658 658 1497

Weight (Flanged) 120 200 520 750 1250 1900 2150 4300 * * − − −54 90 236 340 567 862 975 1950

Bold face numerals are in inches and pounds.Blue numerals are in millimeters and kilograms.Dimensions - Flite-Flow

* E, H and other dimensions and information supplied upon request.*** Flanged valves available in sizes 3 thru 16.

Note: Size 3&4 Buttweld Class 600 Flite-Flow valves are Class 700. See page C30.

Dimensions - Tilting Disk

692Y



• Bolted or pressure-sealcover.

• Y-Pattern, globe, angle, or tilting disk.

• Integral Stellite seats.• Body-guided disk piston,

globe, angle & Flite-Flow.• Gasket: Sizes 3 & 4

asbestos free, spiral wound.All others: composite pressure seal.

• Equipped with equalizer,globe, angle & Flite-Flow.



C

Figure No.614Y** NPS 3 4714Y** DN 80 100


E - Center to Top, (Open) 16 21.5406 546

G - Handwheel Diameter 11 14279 356





STD CL SPL CL

614Y 714Y Flite-Flow Buttwelding Bolted 3 (80) and 4 (100)


# Long Terne Steel is a product coated by immersion in moltenterne metal. Terne Metal is an alloy of lead and a small amount(about 3%) of tin.

** Impactor handwheel standard on all Flite-Flow Valves.


steel (WCB, WC6, WC9, C12A).• Bolted bonnet, OS & Y.• Y-Pattern.• Integral Stellite seat, disk and


stem.• Asbestos free graphitic packing.• Long Terne# steel gasket.

G

A

E



C

Figure No.602Y/702Y NPS 3 4DN 80 100


E - Center to Top, (Open) 16 21.5406 546

G - Handwheel Diameter** 11 14279 356

H - Equalizer Clearance 7 9178 229





** Impactor handwheel standard on Flite-Flow Valves.


STD CL SPL CL

602Y 702Y Flite-Flow Buttwelding Bolted 3 (80) and 4 (100)




• Bolted bonnet, OS & Y.• Y-Pattern.• Integral Stellite seat, disk



packing.• Long Terne# steel gasket.• Equipped with equalizer.


A H

E

G

A

E


C

Figure No.692Y/792Y NPS 3 4DN 80 100


E - Center to Top 8 11203 279








• Bolted cover.• Y-Pattern.• Integral Stellite seat and disk.• Body-guided disk piston.• Long Terne# steel gasket.• Equipped with equalizer.


STD CL SPL CL

692Y 792Y Flite-Flow Buttwelding Bolted 3 (80) & 4 (100)



H


C

Standard Features• Bodies and bonnets are cast steel

(WCB, WC6, WC9, C12A, CF8M,or CF8C).

• Pressure-seal Bonnet, OS & Y.• Y-Pattern, globe & angle design.• Integral Stellite seat, disk and


stem.• Asbestos free graphitic packing.• Yoke bushing thrust bearings size

5 and larger.

Figure No. 4016/4016Y, 4017/4017Y, NPS 3 4 5 6 8 10 12 144316Y, 4317Y DN 80 100 125 150 200 250 300 350

A - End to End (Welding) 15 18 22 24 29 33 38 40.5381 457 559 610 737 838 965 1029

B - Center to Face, (Welding) 7.5 9 11 12 14.5 16.5 19 19190 229 279 305 368 419 483 483

C - Face to Face, (Flanged) 15 18 22 24 29 33 38 40.5381 457 559 610 737 838 965 1029

D - Center to Face, (Flanged) 7.5 9 11 12 14.5 16.5 19 21.75190 229 279 305 368 419 483 552

E - Center to Top, Globe (Open) 22.5 26.25 30.6 37 46 54.75 64.75 71.25572 667 777 940 1168 1391 1645 1810

F - Center to Top, Angle (Open) 20.4 23.75 28.25 34.25 43.4 49.25 60 60518 603 718 870 1102 1251 1524 1524

G - Handwheel Diameter* 16 16 20 20 28 28 36 36406 406 508 508 711 711 914 914

Weight, Globe (Flanged) 210 310 610 800 1570 2410 3700 460095 141 277 363 712 1093 1665 2086

Weight, Globe (Welding) 175 235 500 620 1390 2300 3100 385079 107 227 281 630 1043 1395 1746




STD CL SPL CL

4016 — Globe Flanged 3 (80)4016Y 4316Y Globe Buttwelding thru 14 (350)4017 — Angle Flanged 3 (80)

4017Y 4317Y Angle Buttwelding thru 24 (600)4014 Flite-Flow Flanged 3 (80)

4014Y 4314Y Flite-Flow Buttwelding* thru 16 (400)



* Impactor handwheel is standard on all valves.

* Size 3&4 Buttweld Flite-Flow Valves are Class 1100 - see page C40.



C

Figure No. 4014/4014Y, 4314Y NPS 3 4 6 8 10 12 14 16DN 80 100 150 200 250 300 350 400

A1 - End to End, (Welding) 17 18.5 20 26 31 38 38 44.5432 479 508 660 787 965 965 1130

A2 - Face to Face, (Flanged) 22.25 23.75 30 38 44 50 51 58565 603 762 965 1118 1270 1295 1473

E - Center to Top, (Open) 20 25 35 44 51 60 60 73508 635 889 1118 1295 1524 1524 1854


Weight, (Welding) 190 275 550 1150 2100 3400 3400 555086 125 249 522 953 1542 1542 2517

Weight, (Flanged) 250 370 775 1550 2650 4150 4550 6950113 168 352 703 1202 1882 2064 3152

Figure No. 4017/4017Y, 4317Y NPS 16 18 20 24DN 400 450 500 600

B - Center to End, (Welding) 26 ** 32.5 39660 825 991

F - Center to Top, Angle 78.5 ** 95 1021994 2413 2591

G - Handwheel Diameter* 48 ** 72 721219 1829 1829

Weight, Angle (Welding) 4440 ** 8150 13,7502014 3697 6237


* Impactor handwheel is standard on all valves.Note: Size 3&4 Buttweld Class 900 Flite-Flow Valves are Class 1100. See page C40.

Dimensions - Angle

** Size 18 angle - available upon request.




Figure No. 1911/1911Y, 14311Y, NPS 2-1/2 3 4 6 8 10 12 14A1911/A1911Y DN 65 80 100 150 200 250 300 350

A - End to End (Welding) 12 12 14 20 26 31 36 39305 305 356 508 660 787 914 991

C - Face to Face (Flanged) 16.5 15 18 24 29 33 38 40.5419 381 457 610 737 838 965 1029

E - Center to Top, (Open) 21.25 21.25 24.5 33.5 40 46.75 54.5 59540 540 622 851 1016 1187 1384 1499

G - Handwheel Diameter 14 14 18 24 24 36 36 36356 356 457 610 610 914 914 914

Weight, (Welding) 95 125 165 380 690 1523 2118 280543 57 75 172 313 692 963 1275

E - Center to Top, (Open) A1911/A1911Y 22.5 22.5 24572 572 610

Weight, (Welding) A1911Y 130 130 19059 59 86

C


steel (WCB, WC6, WC9, C12A,CF8M or CF8C).

• Bolted or pressure-seal bonnet,OS & Y.

• Integral Stellite seat, disk andbackseat.

• Two-piece body-guided wedge.• 13% chromium stainless steel

stem.• Asbestos free graphitic packing.• Available in standard or venturi

pattern.• Yoke bushing thrust bearings.• Long Terne# steel or composite

pressure seal gasket.


STD CL SPL CL

1911 Equiwedge Gate Flanged* Pressure-Seal 2-1/2 (65)1911Y 14311Y Equiwedge Gate Buttwelding Pressure-Seal thru 28 (700)

1911BY 14311BY Venturi Pattern Buttwelding Pressure-Seal 8 (200)Equiwedge Gate thru 32 (800)

A1911 Equiwedge Gate Flanged Bolted 2-1/2 (65)A1911Y Equiwedge Gate Buttwelding thru 4 (100)


* Flanges to size 24 only.


Figure No. 1911/1911Y, 14311Y NPS 16 18 20 22 24 26 28DN 400 450 500 550 600 650 700


C - Face to Face (Flanged) 44.5 48 52 57 61 Available1130 1291 1321 1448 1549 Upon Request

E - Center to Top, (Open) 68 73.75 82 89.25 95 102 1091727 1873 2083 2267 2413 2591 2769


Weight, (Welding) 4150 4300 5800 7500 9600 12,0001882 1950 2631 3402 4355 5443




C

Figure No. 1911BY, 14311BY NPS 20x18x20 22x20x22 24x20x24 26x22x26 28x24x28 30x26x30 32x28x32DN 500 550 600 650 700 750 800


E - Center to Top, (Open) 73.75 82 82 89.25 95 102 1091873 2083 2083 2267 2413 2591 2769


Weight, (Welding) 4500 6970 7200 8000 10,000 12,500 15,0002041 3162 3266 3629 4536 5670 6804


Figure No. 1911BY, 14311BY NPS 8x6x8 10x8x10 12x10x12 14x12x14 16x14x16 18x16x18DN 200 250 300 350 400 450


E - Center to Top, (Open) 33.5 40 46.75 54.5 59 68851 1016 1187 1384 1499 1727


Weight, (Welding) 530 891 1523 2118 2805 4150241 405 692 963 1275 1882




C



• Pressure-seal Bonnet, OS & Y.• Y-Pattern, globe & angle design.• Integral Stellite seat, disk and


stem.• Asbestos free graphitic packing.• Equipped with equalizer.• Yoke bushing thrust bearings.


A - End to End, (Welding) 15 18 22 24 29 33 38 40.5381 457 559 610 737 838 965 1029

B - Center to End, (Welding) 7.5 9 11 12 14.5 16.5 19 19190 22 279 305 368 419 483 483



E - Center to Top, Globe (Open) 22.5 26.25 30.63 37 46 54.75 64.75 71.25572 667 778 940 1168 1391 1645 1810

F - Center to Top, Angle (Open) 20.38 23.75 28.25 34.25 43.38 49.25 60 62.75518 603 718 870 1102 1251 1524 1594


H - Clearance for Equalizer 7.5 7.63 9.75 10.75 12.5 12.88 14.75 17.38190 194 248 273 318 327 375 441






STD CL SPL CL

4006 Globe Flanged 3 (80)4006Y 4306Y Globe Buttwelding thru 14 (350)4007 Angle Flanged 3 (80)

4007Y 4307Y Angle Buttwelding thru 24 (600)4002 Flite-Flow Flanged 3 (80)

4002Y 4302Y Flite-Flow Buttwelding* thru 16 (400)


Bold face numerals are in inches and pounds.Blue numerals are in millimeters and kilograms.Dimensions - Globe and Angle


* Size 3&4 Buttweld Flite-Flow Valves are Class 1100 - see page C41.



C


A1 - End to End (Welding) 17 18.5 20 26 31 38 38 44.5432 470 508 660 787 965 965 1130

A2 - Face to Face (Flanged) 22.25 23.75 30 38 44 50 51 58565 603 762 965 1118 1270 1295 1473

E - Center to Top (Open) 20 25 35 44 51 60 60 73508 635 889 1118 1295 1524 1524 1854


H - Equalizer Clearance 9 9.3 10 12.5 16 15 15 25.75229 236 254 318 406 381 381 654

Weight (Welding) 190 275 555 1150 2100 3400 3400 555086 125 252 522 953 1542 1542 2517

Weight (Flanged) 250 370 775 1550 2650 4150 4550 6950113 168 352 703 1202 1882 2064 3153


B - Center to End, (Welding) 26 ** 32.5 39660 825 991

F - Center to Top, Angle 78.5 ** 95 1021994 2413 2591

G - Handwheel Diameter* 48 ** 72 721219 1829 1829

H - Clearance for Equalizer 20 ** 21.5 3050.8 546 762

Weight, Angle (Welding) 4960 ** 8150 13,7502250 3697 6237



Dimensions - Flite-Flow

Dimensions - Angle

** Size 18” Angle - Available Upon Request.



C

Standard Features• Bodies and Covers are cast steel

(WCB, WC6, WC9, C12A, CF8M or CF8C).

• Pressure-seal Cover.• Globe, angle & tilting disk design.• Integral Stellite seats.• Body-guided disk piston.

(Globe & Angle)• Equipped with equalizer.

(Globe & Angle)


A - End to End, (Welding) 15 18 22 24 29 33 38 40.5381 457 559 610 737 838 965 1029

B - Center to End, (Welding) 7.5 9 11 12 14.5 16.5 19 20.25190 229 279 305 368 419 483 514



E - Center to Top, Globe 11 12 13.75 15.63 18.5 22.25 26.25 28.75279 305 349 397 470 565 667 730

F - Center to Top, Angle 9.25 10.25 11.25 12.5 16 16.75 21.5 21.5235 260 286 318 406 425 546 546

H - Clearance for Equalizer 7.5 7.63 9.75 10.75 12.5 12.88 14.75 17.38190 194 248 273 318 327 275 441






STD CL SPL CL

970Y 4370Y Tilting Disk Buttwelding 2-1/2 (65) thru24 (600)

4094 Globe Flanged 3 (80) thru4094Y 4394Y Globe Buttwelding 14 (350)4095 Angle Flanged 3 (80) thru

4095Y 4395Y Angle Buttwelding 24 (600)4092 Flite-Flow Flanged 3(80) thru

4092Y 4392Y Flite-Flow Buttwelding* 16 (400)



*Size 3&4 Buttweld Flite-Flow Valves are Class 1100 - see page C42.



C


B - Center to End, (Welding) 26 29 32.5 39660 737 825 991

F - Center to Top, Angle (Open) 29 32 32 36737 813 813 914

G - Handwheel Diameter 20 21 21.5 30508 533 546 762

Weight, Angle (Welding) 2675 3710 4930 81901213 1682 2636 3714

Bold face numerals are in inches and pounds.Blue numerals are in millimeters and kilograms.Dimensions - Angle

Figure No. 970Y, 4370Y NPS 2-1/2* 3* 4* 6 8 10DN 65 80 100 150 200 250


E - Center to Top 7.25 7.25 7.25 9.25 11 13184 184 184 235 279 330

W - Width 10.5 10.5 10.5 16.5 16 20.5267 267 267 419 406 521

Weight (Welding) 95 95 120 535 600 101043 43 54 243 272 458

*Spiral wound hinge pin gaskets; hinge pin torsion spring not required.


Figure No. 970Y, 4370Y NPS 12 14 16 18 20 24DN 300 350 400 450 500 600

A - End to End (Welding) 42 40.5 47 53 51.5 781067 1029 1194 1346 1308 1981

E - Center to Top 15.75 15.75 18.75 18.75 23 36400 400 476 476 584 914

W - Width 26.5 26.5 29 29 37.5 55673 673 737 737 953 1397

Weight (Welding) 2090 2090 3260 3300 4510 10,200948 948 1479 1497 2046 4627




C


(WCB, WC6, WC9, C12A, CF8Mor CF8C).

• Pressure-seal cover.• Y-Pattern.• Integral Stellite seats.• Body-guided disk piston.• Equipped with equalizer.


A1 - End to End (Welding) 17 18.5 20 26 31 38 38 44.5432 470 508 660 787 914 914 1092

A2 - Face to Face (Flanged) 22.25 23.75 30 38 44 50 51 58565 603 762 965 1118 1270 1295 1473

E - Center to Top 10 11 13.5 17.25 20.25 24 24 30254 279 343 438 514 610 610 762

H - Equalizer Clearance 9 9.3 10 12.5 16 15 15 25.75229 236 254 318 406 381 381 654

Weight, (Welding) 130 175 300 710 1300 2050 2050 390059 79 136 322 590 930 930 1769

Weight, (Flanged) 190 250 520 1100 1850 2800 3200 530086 113 236 499 839 1270 1452 2404





C

Figure No. 4014Y, 4314Y NPS 3 4DN 80 100

A - End to End, (Welding) 17 18.5432 470

E - Center to Top, (Open) 20 25508 635

G - Handwheel Diameter* 16 16406 406

Weight, (Welding) 190 27586 125




STD CL SPL CL

4014Y 4314Y Flite-Flow Buttwelding 3 (80) and 4 (100)




steel (WCB, WC6, WC9, CF8M,or CF8C).

• Pressure-seal bonnet, OS & Y.• Y-Pattern.• Integral Stellite seat, disk and


stem.• Asbestos free graphitic packing.



C










STD CL SPL CL





steel (WCB, WC6, WC9,C12A, CF8M, or CF8C).

• Pressure-seal bonnet, OS & Y.• Y-Pattern.• Integral Stellite seat, disk



packing.• Equipped with equalizer.



C






Bold face numerals are in inches and pounds.Blue numerals are in millimeters and kilograms.Dimensions - Flite-Flow®


STD CL SPL CL





• Pressure-seal cover.• Y-Pattern.• Integral Stellite seat and disk.• Body-guided disk piston.• Equipped with equalizer.



C



• Pressure-seal bonnet, OS & Y.• Y-Pattern, globe & angle design.• Integral Stellite seats and back-

seat.• Body-guided disk piston.• 13% chromium stainless steel


5 and larger.


STD CL SPL CL

7514Y 2014Y Flite-Flow Buttwelding* 3 (80) thru24 (600)

7516 Globe Flanged 2-1/2 (65)7516Y 2016Y Globe Buttwelding thru 14 (350)7517 Angle Flanged 2-1/2 (65)

7517Y 2017Y Angle Buttwelding thru 24 (600)


Figure No. 7516/7516Y, 2016Y NPS 2-1/2 3 4 5 6 8 10 12 147517/7517Y, 2017Y DN 65 80 100 125 150 200 250 300 350

A - End to End, (Welding) 13 15 18 22 24 29 33 38 40.5330 381 457 559 610 737 838 965 1029

B - Center to End, (Welding) 6.5 7.5 9 11 12 14.5 16.5 19 20.25165 190 229 279 305 368 419 483 514

C - End to End, (Flanged) 16.5 18.5 21.5 26.5 27.75 32.75 39 44.5 49.5419 470 546 673 705 832 991 1130 1257

D - Center to End, (Flanged) 8.25 9.25 10.75 13.25 13.88 16.38 19.5 22.25 24.75210 235 273 337 353 416 495 565 629

E - Center to Top, Globe (Open) 19.25 22.5 26.25 30.63 36.5 48.75 59.5 70 70489 572 667 778 927 1238 1511 1778 1778

F - Center to Top, Angle (Open) 18 20.4 23.75 28.25 34.75 45.75 56 66.3 66.75457 518 603 718 883 1162 1422 1684 1695

G - Handwheel Diameter* 14 16 16 20 20 28 36 36 48356 406 406 508 508 711 914 914 1219






*Impactor handle is standard on size 2-1/2 Globe and Angle valves.*Impactor handwheel is standard on all other size Globe and Angle valves and all Flite-Flow valves.*Impactogear is available on size 8 and larger Globe, Angle and Flite-Flow valves.

*Size 3&4 Buttweld Flite-Flow Valves are Class 1800 - see page C53.



C


B - Center to End, (Welding) 23.5 23.5 28.5 35.5597 597 724 902

F - Center to Top, Angle 77.5 77.5 84 1031969 1969 2134 2616

G - Handwheel Diameter* 48 48 72 721219 1219 1829 1829

Weight, Angle (Welding) 6600 6800 9500 16,2002994 3084 4309 7348



Figure No. 7514Y/2014Y NPS 3 4 6 8 10 12 14 16 18 20 24DN 80 100 150 200 250 300 350 400 450 500 600

A - End to End (Welding) 17 18.5 27.75 30 36.25 43 41 54 63 54.5 59.5432 470 705 762 921 1092 1041 1372 1600 1384 1511

E - Center to Top, (Open) 20 25 34.25 45 53.5 60.75 60.75 78.5 78.5 96 96508 635 870 1143 1359 1543 1543 1994 1994 2438 2438

G - Handwheel Diameter* 16 16 20 28 36 36 36 48 48 72 72406 406 508 711 914 914 914 1219 1219 1829 1829

Weight (Welding) 210 300 700 1550 2725 4220 4300 7650 8390 10,500 16,80095 136 318 702 1236 1914 1950 3470 3806 4763 7620


*Impactor handle is standard on size 2-1/2 Globe and Angle valves.*Impactor handwheel is standard on all other size Globe and Angle valves and all Flite-Flow valves.*Impactogear is available on size 8 and larger Globe, Angle and Flite-Flow valves.Note: Size 3&4 Buttweld Class 1500 Flite-Flow Valves are Class 1800. See page C53.



C


steel (WCB, WC6, WC9,C12A,CF8M or CF8C).

• Pressure-seal bonnet, OS & Y.• Integral Stellite seats and

backseat.• Two piece body-guided wedge.• 13% chromium stainless steel




STD CL SPL CL

11511 Equiwedge Gate Flanged* 2-1/2 (65) thru11511Y 12011Y Equiwedge Gate Buttwelding 24 (600)

11511BY 12011BY Venturi Pattern Buttwelding 8 (200) thruEquiwedge Gate 28 (700)


* Optional weld-on flanges.

Figure No. 11511/11511Y NPS 2-1/2 3 4 6 8 10 1212011Y DN 65 80 100 150 200 250 300

A - End to End, (Welding) 12 12 16 22 28 34 39305 305 406 559 711 864 991

C - Face to Face (Flanged) 16.5 18.5 21.5 27.75 32.75 39 44.5419 470 546 705 832 991 1130

E - Center to Top, (Open) 21.25 21.25 24.25 31.5 40 48.25 55.25540 540 616 800 1016 1226 1403


Weight (Welding) 125 125 190 490 675 1730 272557 57 86 222 306 785 1236


Figure No. 11511/11511Y, 12011Y NPS 14 16 18 20 22 24DN 350 400 450 500 550 600

A - End to End (Welding) 42 47 53 58 67 76.51067 1194 1346 1473 1702 1943

C - Face to Face (Flanged) 49.5 54.5 60.5 65.5 71 76.51257 1384 1537 1664 1803 1943

E - Center to Top, (Open) 61 68.75 73.75 80 86.75 93.51549 1746 1873 2032 2203 2375


Weight (Welding) 3660 4450 6000 8000 10,500 13,0001660 2019 2722 3629 4763 5897




C

Figure No. 11511BY, 12011BY NPS 20x18x20 22x20x22 24x20x24 26x22x26 28x24x28DN 500 550 600 650 700

A - End to End (Welding) 53 58 58 67 76.51346 1473 1473 1702 1943

E - Center to Top, (Open) 73.75 80 80 86.75 93.51873 2032 2032 2203 2375

G - Handwheel Diameter 48 60 60 60 601219 1524 1524 1524 1524

Weight (Welding) 6200 8200 8,500 11,000 13,5002812 3720 3855 4990 6124


Figure No. 11511BY NPS 8x6x8 10x8x10 12x10x12 14x12x14 16x14x16 18x16x1812011BY DN 200 250 300 350 400 450


E - Center to Top, (Open) 31.5 40 48.25 55.25 61 68.75800 1016 1226 1403 1549 1746


Weight (Welding) 490 1082 1690 2725 3600 4600222 491 767 1236 1633 2087




C



• Pressure-seal bonnet, OS & Y.• Y-Pattern, globe or angle design.• Integral Stellite seats and


stem.• Asbestos free graphitic packing.• Equipped with equalizer.• Yoke bushing thrust bearings size

5 and larger.


STD CL SPL CL


7506 Globe Flanged 2-1/2 (65) thru7506Y 2006Y Globe Buttwelding 14 (350)7507 Angle Flanged 2-1/2 (65) thru

7507Y 2007Y Angle Buttwelding 24 (600)


Figure No. 7506/7506Y, 7507/7507Y, NPS 2-1/2 3 4 5 6 8 10 12 142006Y, 2007Y DN 65 80 100 125 150 200 250 300 350

A - End to End, (Welding) 13 15 18 22 24 29 33 38 40.5330 381 457 559 610 737 838 965 1029

B - Center to End, (Welding) 6.5 7.5 9 11 12 14.5 16.5 19 20.25165 190 229 279 305 368 419 483 514

C - Face to Face, (Flanged) 16.5 18.5 21.5 26.5 27.75 32.75 39 44.5 49.5419 470 546 673 705 832 991 1130 1257

D - Center to Face, (Flanged) 8.25 9.25 10.75 13.25 13.88 16.38 19.5 22.25 24.75210 235 273 337 353 416 495 565 628

E - Center to Top, Globe 19.25 22.5 26.25 30.63 36.5 48.75 59.5 70 70489 572 667 778 927 1238 1511 1778 1778

F - Center to Top, Angle 18 20.38 23.75 28.25 34.75 45.75 56 66.3 66.75457 518 603 718 883 1162 1422 1684 1695

G - Handwheel Diameter* 14 16 16 20 20 28 36 36 48356 406 406 508 508 711 914 914 1219

H - Clearance for Equalizer 6.75 7.75 7.75 10 10.75 12.75 14 15 17.38171 197 197 254 273 324 356 381 441






*Impactor handle is standard on size 2-1/2 Globe and Angle valves.*Impactor handwheel is standard on all other size Globe and Angle valves and all Flite-Flow valves.*Impactogear is available on size 8 and larger Globe, Angle and Flite-Flow valves.

*Size 3&4 Buttweld Flite-Flow Valves are Class 1800. See page C54.



CFigure No. 7507/7507Y, 2007Y NPS 16 18 20 24

DN 400 450 500 600

B - Center to End, (Welding) 23.5 23.5 28.5 35.5597 597 724 902

F - Center to Top, Angle 77.5 77.5 84 1031969 1969 2134 2616


H - Clearance for Equalizer 19.5 19.5 23 28.5495 495 584 724

Weight, Angle (Welding) 6600 6800 9500 16,2002994 3084 4309 7348


Figure No. 7502Y, 2002Y NPS 3 4 6 8 10 12 14 16 18 20 24DN 80 100 150 200 250 300 350 400 450 500 600

A - End to End (Welding) 17 18.5 27.75 30 36.25 43 41 54 63 54.5 59.5432 470 705 762 921 1092 1041 1372 1600 1384 1511

E - Center to Top 20 25 34.25 45 53.5 60.75 60.75 78.5 78.5 96 96508 635 870 1143 1359 1543 1543 1994 1994 2438 2438


H - Equalizer Clearance 9 10 10.75 12.75 15.75 16.5 16.5 19.5 19.5 28 28229 254 273 324 400 419 419 495 495 711 711

Weight (Welding) 210 300 720 1600 2820 4260 4280 8450 8400 10,500 11,50095 136 327 726 1279 1932 1941 3833 3810 4763 5216


*Impactor handle is standard on size 2-1/2 Globe and Angle valves.*Impactor handwheel is standard on all other size Globe and Angle valves and all Flite-Flow valves.*Impactogear is available on size 8 and larger Globe, Angle and Flite-Flow valves.Note: Size 3&4 Buttweld Class 1500 Flite-Flow Valves are Class 1800. See page C55.



C



• Pressure-seal cover OS & Y.• Globe or angle design.• Integral Stellite seats.• Body-guided disk piston.• Equipped with equalizer.


STD CL SPL CL

7594 Globe Flanged 2-1/2 (65) thru7594Y 2094Y Globe Buttwelding 14 (350)7595 Angle Flanged 2-1/2 (65) thru

7595Y 2095Y Angle Buttwelding 24 (600)7592Y 2092Y Flite-Flow Buttwelding* 3 (80) thru 24 (600)


Figure No. 2094Y, 2095Y, 7594/7594Y, NPS 2-1/2 3 4 5 6 8 107595/7595Y DN 65 80 100 125 150 200 250

A - End to End, (Welding) 13 15 18 22 24 29 33330 381 457 559 610 737 838

B - Center to End, (Welding) 6.5 7.5 9 11 12 14.5 16.5165 190 229 279 305 368 419

C - Face to Face, (Flanged) 16.5 18.5 21.5 26.5 27.75 32.75 39419 470 546 673 705 832 991

D - Center to Face, (Flanged) 8.25 9.25 10.75 13.25 13.88 16.38 19.5210 235 273 337 353 416 495

E - Center to top, Globe 9.25 11 12 13.75 15 18.75 20.75235 279 305 349 381 476 527

F - Center to Top, Angle 8.25 9.25 10.25 11.25 13 15.75 17.25210 235 260 286 330 400 438

H - Clearance for Equalizer 6.75 7.75 7.75 10 10.75 12.75 14171 197 197 254 273 324 356

Weight, Globe (Flanged) 125 195 320 534 684 1390 236057 88 145 242 310 631 1070

Weight, Globe (Welding) 65 115 180 308 470 960 153029 52 82 140 213 435 694

Weight, Angle (Flanged) 107 186 290 350 470 1070 106049 84 132 159 213 485 481

Weight, Angle (Welding) 57 94 152 260 340 680 123026 43 69 118 154 308 558


*Size 3&4 Buttweld Flite-Flow Valves are Class 1800. See page C55.



C

Figure No. 2094Y, 2095Y, NPS 12 14 16 18 20 247594/7594Y, 7595/7595Y DN 300 350 400 450 500 600

A - End to End, (Welding) 38 40.5 Valve Not Available965 1029

B - Center to End, (Welding) 19 20.25 23.5 23.5 28.5 35.5483 514 597 597 724 902

C - Face to Face, (Flanged) 44.5 49.5 Valve Not Available1130 1257

D - Center to Face, (Flanged) 22.25 24.75 Available Upon Request565 629

E - Center to Top, Globe 24.25 30 Valve Not Available616 762

F - Center to Top, Angle 20.5 25 24.5 24.5 42 51521 635 622 622 1067 1295

H - Clearance for Equalizer 15 17.38 19.5 19.5 23 28.5381 441 495 495 584 724

Weight, Globe (Flanged) 3100 4400 Valve Not Available1406 1995

Weight, Globe (Welding) 2310 3300 Available Upon Request1040 1497

Weight, Angle (Flanged) 2320 3900 Valve Not Available1044 1769

Weight, Angle (Welding) 1530 2060 4700 4880 6820 11,600686 927 2131 2213 3093 5261




C


A - End to End 17 18.5 27.75 30 36.25 43 41 54 63 54.5 58432 470 705 762 921 1092 1041 1372 1600 1384 1478

E - Center to Top 10 11 16 20.75 25.5 29.25 29.25 34 34 43 43254 279 406 527 648 743 743 864 864 1092 1092

H - Equalizer Clearance 9 10 10.75 12.75 15.75 16.5 16.5 19.5 19.5 28 28229 254 273 324 400 419 419 495 495 711 711

Weight 140 200 480 900 1750 2525 2525 5550 5850 6700 11,20064 91 218 408 794 1145 1145 2517 2654 3039 5080



• Pressure-seal cover.• Y-Pattern.• Integral Stellite seats.• Body-guided disk piston.• Equipped with equalizer.


Note: Size 3&4 Buttweld Class 1500 Flite-Flow Valves are Class 1800. See page C55.



C



• Pressure-seal cover.• Y-Pattern.• Integral Stellite seats.• Body-guided disk piston.


STD CL SPL CL

1570Y 2070Y Tilting Disk Buttwelding 2-1/2(65) thru 24(600)




E - Center to Top 7.25 7.25 7.25 9.25 11 13184 184 184 235 279 330

W -Width 10.5 10.5 10.5 16.5 16.75 20.5267 267 267 419 425 521

Weight (Welding) 90 90 95 460 600 100541 41 43 209 272 456

Figure No. 1570Y NPS 12 14 16 18 20 24DN 300 350 400 450 500 600

A - End to End (Welding) 42 40.5 47 53 51.5 581067 1029 1194 1346 1308 1473

E - Center to Top 15.75 15.75 18.75 18.75 23 36400 400 476 476 584 914

W - Width 26.5 26.5 29 29 37.5 55673 673 737 737 953 1397

Weight (Welding) 1520 1550 3280 3590 4600 10,300689 703 1487 1628 2087 4672

Bold face numerals are in inches and pounds.Blue numerals are in millimeters and kilograms.Dimensions - Tilting Disk

* Spiral wound hinge pin gaskets; hinge pin torsion spring not required.




C


A - End to End 17 18.5432 470






STD CL SPL CL






• Pressure-seal cover, OS & Y.• Y-Pattern.• Integral Stellite seats.• Body-guided disk piston.• 13% chromium stainless

steel stem.



C

Figure No. 7502Y, 2002Y NPS 3 4Figure No. 7514Y, 2002Y DN 80 100

A - End to End 17 18.5432 470







STD CL SPL CL






• Pressure-seal bonnet, OS&Y.• Y-Pattern.• Integral Stellite seats.• Body-guided disk piston.• Equipped with equalizer.• 13% chromium stainless

steel stem.• Asbestos free graphitic packing.


7502Y


C


A - End to End 17 18.5432 470






STD CL SPL CL









C


A - End to End 39 39991 991



Weight (Welding) 4300 43001950 1950



STD CL SPL CL





2214Y


steel (WCB, WC6, WC9, C12A, CF8M or CF8C).

• Pressure-seal cover, OS & Y.• Y-Pattern.• Integral Stellite seat, disk and

backseat.• Body-guided disk piston.• 13% chromium stainless

steel stem.• Asbestos free graphitic packing.

C



A - End to End 39 39991 991




Weight 4300 43001950 1950



STD CL SPL CL






• Pressure-seal bonnet, OS & Y.• Y-Pattern.• Integral Stellite seat, disk




C57Edward Valves • 1900 South Saunders Street, Raleigh, North Carolina 27603 • 1-800-225-6989 • 1-919-832-0525 • Fax 1-919-831-3369 C57

2202Y


C


A - End to End 39 39991 991



Weight 2900 29001315 1315



STD CL SPL CL








2292Y

C




• Pressure-seal bonnet, OS & Y.• Vertical, Y-Pattern & angle design.• Integral Stellite seat, disk and



5 and larger.


STD CL SPL CL


3916 Globe Flanged 2-1/2 (65) thru3916Y 4416Y Globe Buttwelding 12 (300)3917 Angle Flanged* 2-1/2 (65) thru



Figure No. 3916/3916Y, 3917/3917Y NPS 2-1/2 3 4 5 6 8 10 124416Y/4417Y DN 65 80 100 125 150 200 250 300

A1 - End to End, (Welding) 13 15 18 22 24 29 33 38330 381 457 559 610 737 838 965

B - Center to End, (Welding) 6.5 7.5 9 11 12 14.5 16.5 19165 190 228 279 305 368 419 483

C - Face to Face, (Flanged) 20 22.75 26.5 31.25 36 40.25 50 56508 578 673 794 914 1022 1270 1422

D - Center to Face, Flanged 10 11.38 13.25 15.63 18 20.13 25 28254 289 337 397 457 511 635 711

E - Center to Top, Globe (Open) 19.63 22.38 25.25 28.25 37.63 47.25 55.25 72.5499 568 572 718 955 1200 1403 1842

F - Center to Top, Angle (Open) 18 20 22.5 25 33.75 42.25 48.75 69.5457 508 641 635 857 1073 1238 1765

G - Handwheel/Handle Diameter* 14 16 16 20 28 28 36 48356 406 406 508 711 711 914 1219






*Impactor handle is standard on size 2-1/2 Globe and Angle valves.*Impactor handwheel is standard on all other size Globe, Angle and all Flite-Flow valves.*Impactogear is available on size 6 and larger valves.

*Flanges to size 12 only.*Size 3&4 Buttweld Flite-Flow Valves are Class 2900. See page C65.



C


A - End to End (Welding) 17 18.5 24 30 36 41 48.75 48.75 58 58 68432 470 610 762 914 1041 1238 1238 1473 1473 1727

E - Center to Top, (Open) 20 25 37.5 41.75 50 65 69 69 93.8 93.8 113508 635 953 1060 1270 1651 1753 1753 2382 2382 2870


Weight (Welding) 230 325 875 1610 2750 4600 6990 7010 12,700 12,790 16,570104 147 397 730 1247 2087 3171 3180 5761 5802 7516


B - Center to End, (Welding) 20.25 20.25 23.5 23.5 26 28.5514 514 597 597 660 724

F - Center to Top, Angle (Open) 67 67 92 92 89.5 961701 1701 2300 2300 2238 2438

G - Handwheel Diameter* 48 48 72 72 72 721219 1219 1829 1829 1829 1829

Weight, Angle (Welding) 5350 5410 10,460 10,540 14,350 18,2002427 2454 4745 4781 6509 8255



*Impactor handle is standard on size 2-1/2 Globe and Angle valves.*Impactor handwheel is standard on all other size Globe, Angle and all Flite-Flow valves.*Impactogear is available on size 6 and larger valves.Note: Size 3&4 Buttweld Class 2500 Flite-Flow Valves are Class 2900. See page C65.



C



• Pressure-seal bonnet, OS & Y.• Integral Stellite seat and

backseat.• Two piece body-guided wedge.• 13% chromium stainless steel




STD CL SPL CL

12511 Equiwedge Gate Flanged* 2-1/2 (65)12511Y 14411Y Equiwedge Gate Buttwelding thru 24 (600)

12511BY 14411BY Venturi Pattern Buttwelding 8 (200)Equiwedge Gate thru 28 (700)


*Weld on flanges to size 12 only.

Figure No. 12511/12511Y, 14411Y NPS 2-1/2 3 4 6 8 10 12DN 65 80 100 150 200 250 300

A - End to End (Welding) 13 14.5 18 24 30 36 41330 368 457 610 762 914 1041

C - Face to Face (Flanged) 20 22.75 26.5 36 40.25 50 56508 578 673 914 1022 1270 1422

E - Center to Top, (Open) 21.5 21.5 22 31.75 36.75 49.25 56546 546 559 806 933 1251 1422

G - Handwheel/Handle Diameter 24 24 24 30 36 36 48610 610 610 762 914 914 1219

Weight (Welding) 126 126 318 715 1245 2130 355757 57 144 324 565 966 1613




C - Face to Face (Flanged) N/A

E - Center to Top, (Open) 56.75 66 71 75.5 87.25 88.751441 1676 1803 1918 2116 2254


Weight (Welding) 5167 6600 8600 11,400 13,000 15,0002349 2994 3901 5171 5897 6804




C

Figure No. 12511BY/14411BY NPS 18x16x18 20x18x20 22x20x22 24x20x24 26x22x26 28x24x28DN 450 500 550 600 650 700


E - Center to Top, (Open) 66 71 75.5 75.5 87.25 88.751676 1803 1918 1918 2116 2254


Weight (Welding) 6600 8600 11,400 13,000 15,000 15,0002994 3901 5171 5900 6800 6800


Figure No. 12511BY/14411BY NPS 8x6x8 10x8x10 12x10x12 14x12x14 16x14x16DN 200 250 300 350 400

A - End to End (Welding) 24 30 36 41 44610 762 914 1041 1118

E - Center to Top, (Open) 31.75 36.75 49.25 56 56.75806 933 1251 1422 1441

G - Handwheel Diameter 30 36 36 48 48762 914 914 1219 1219

Weight (Welding) 715 1245 2165 3557 5167325 566 984 1617 2349




C

Figure No. 3906/3906Y, 3907/3907Y NPS 2-1/2 3 4 5 6 8 10 124406Y, 4407Y DN 65 80 100 125 150 200 250 300

A - End to End, (Welding) 13 15 18 22 24 29 33 38330 381 457 559 610 737 838 965



D - Center to Face, (Flanged) 10 11.38 13.25 15.63 18 20.13 25 28254 289 337 397 457 511 635 711

E - Center to Top, Globe 19.63 22.38 25.25 28.25 37.63 47.25 55.25 72.5499 568 641 718 956 1200 1403 1842

F - Center to Top, Angle 18 20 22.5 25 33.75 42.25 48.75 69.5457 508 572 635 857 1073 1238 1765

G - Handwheel/Handle Diameter* 14 16 16 20 28 28 36 48356 406 406 508 711 711 914 1219

H - Clearance for Equalizer 7.25 8 8.5 8.5 11 11.5 14 16184 203 216 216 279 292 356 406







• Pressure-seal bonnet, OS & Y.• Y-Pattern, globe & angle design.• Integral Stellite seat, disk and


stem.• Asbestos free graphitic packing.• Equipped with equalizer.• Yoke bushing thrust bearings size

5 and larger.


STD CL SPL CL





*Impactor handle is standard on size 2-1/2 Globe and Angle valves.*Impactor handwheel is standard on all other size Globe, Angle and all Flite-Flow valves.*Impactogear is available on size 6 and larger valves.





C



E - Center to Top 20 25 37.5 41.75 50 65 69 69 93.8 93.8 113508 635 953 1060 1290 1651 1753 1753 2383 2383 2870


H - Equalizer Clearance 9 10 11 11.5 15.75 17.5 20.25 20.25 23.5 23.5 32229 254 279 292 400 445 514 514 591 591 813

Weight (Welding) 230 325 890 1610 2750 4600 6990 7010 12,700 12,790 16,570104 147 404 730 1247 2087 3170 3179 5760 5802 7516



F - Center to Top, Angle 67 67 92 92 89.5 961702 1702 2337 2337 2273 2438

G - Handwheel Diameter* 48 48 72 72 72 721219 1219 1829 1829 1829 1829

H - Clearance for Equalizer 18.5 18.5 22 22 23 24470 470 559 559 584 610

Weight, Angle (Welding) 5390 5450 10,540 10,620 14,470 18,3402445 2472 4781 4817 6564 8319



* Impactor handwheel is standard on all valves.* Impactogear is available on size 6 and larger valves.Note: Size 3&4 Buttweld Class 2500 Flite-Flow Valves are Class 2900. See page C66.



C

Figure No. 3994/3994Y, 3995/3995Y, NPS 2-1/2 3 4 5 6 8 10 124494Y,4495Y DN 65 80 100 125 150 200 250 300

A - End to End, (Welding) 13 15 18 22 24 29 33 38330 381 457 559 610 737 838 965



D - Center to Face, (Flanged) 10 11.38 13.25 15.63 18 20.13 25 28254 289 337 397 457 511 635 711

E - Center to Top, Globe 9.25 10.38 11.25 12.25 14 17 19.25 23235 264 286 311 356 432 489 584

F - Center to top, Angle 7.63 8.38 8.5 9 10.25 12 12.75 20194 213 216 229 260 305 324 508

H - Clearance for Equalizer 7.25 8 8.5 8.5 11 11.5 14 16184 203 216 216 279 292 356 406







• Pressure-seal cover.• Integral Stellite seats.• Body-guided disk piston.• Equipped with equalizer.


STD CL SPL CL



3995Y 4495Y Angle Buttwelding 24 (600)2570Y 4470Y Tilting Disk Buttwelding 2-1/2 (65) thru 24(600)






C



E - Center to Top 10 11 14.25 18.75 22.25 26.75 28.5 28.5 36.5 36.5 54254 279 362 476 565 679 724 724 927 927 1372

H - Equalizer Clearance 9 10 11 11.5 15.75 17.5 20.25 20.25 23.5 23.5 32229 254 279 292 400 445 514 514 591 591 813

Weight (Welding) 150 225 510 950 1950 2730 4300 4300 8100 8190 12,62068 102 230 431 884 1238 1950 1950 3674 3715 5724

Figure No. 3995/3995Y, NPS 14 16 18 20 22 244495Y DN 350 400 450 500 550 600


F - Center to Top, Angle 21.75 21.75 26.5 26.5 30.5 33552 552 673 673 775 838

H - Clearance for Equalizer 18.5 18.5 22 22 23 24470 470 559 559 584 610

Weight, Angle (Welding) 3210 3270 5570 5650 8100 10,5501456 1483 2527 2562 3674 4785



Note: Size 3&4 Buttweld Class 2500 Flite-Flow Valves are Class 2900. See page C67.



C



• Pressure-seal cover.• Integral Stellite seats.

Figure No. 2570Y, 4470Y NPS 12 14 16 18 20 24DN 300 350 400 450 500 600


E - Center to Top 15.75 17.75 17.75 23.75 23.75 31400 451 451 603 603 787

W - Width 24.25 28.5 28.5 35 35 45616 724 724 889 889 1143

Weight (Welding) 2250 3200 3200 5580 5690 13,2001021 1452 1452 2531 2581 5988



E - Center to Top 7.25 7.25 7.25 9.5 10.5 12.5184 184 184 241 267 318

W - Width 10.5 10.5 10.5 15 18 20267 267 267 381 457 508

Weight (Welding) 95 95 95 435 800 118043 43 43 197 363 535




*Spiral wound hinge pin gaskets; hinge pin torsion spring not required.



C


A - End to End 17 18.5432 470


G - Handwheel Diameter 16 16406 406

Weight 230 325104 147



STD CL SPL CL





steel (WCB, WC6, WC9, C12A,CF8M, or CF8C).

• Pressure-seal bonnet, OS & Y.• Y-Pattern.• Integral Stellite seat, disk and


stem.• Asbestos free graphitic packing.


3914Y


C


A - End to End 17 18.5432 470




Weight 230 325104 147



STD CL SPL CL






• Pressure-seal bonnet, OS &Y.

• Y-Pattern.• Integral Stellite seat, disk






C


A - End to End 17 18.5432 470



Weight 150 22568 102



STD CL SPL CL








Stop Valves Series 4500

C

THESE SERIES 4500 VALVES ARE DESIGNED AND RATED TO EDWARD VALVE STANDARDS.SEE PARAGRAPH 3.2, PAGE G59 FOR ADDITIONAL INFORMATION.

Figure No. 4514Y, 5014Y NPS 4 6 8 10DN 100 150 200 250

A - End to End 28 31 31 39.75711 787 787 1010

E - Center to Top, (Open) 27.4 35 48.25 52.75696 889 1226 1340


Weight 625 1360 2510 4020284 617 1139 1823



• Pressure-seal bonnet, OS & Y.• Y-Pattern.• Integral Stellite seats and back-

seat.• Body-guided disk piston.• 13% chromium stainless steel

stem.• Yoke bushing thrust bearings.


STD CL SPL CL

4514Y 5014Y Flite-Flow Buttwelding 4 (100) thru 10 (250)

Series 4500


* Impactor handwheel is standard on size 4 & larger. Impactogear is available on size 6 and larger.


Stop Check (Non-Return) Valves Series 4500

C


Figure No. 4502Y/5002Y NPS 4 6 8 10DN 100 150 200 250

A - End to End 28 31 31 39.75711 787 787 1010

E - Center to Top 27.4 35 48.25 52.75695 889 1226 1340


H - Equalizer Clearance 9.75 10.6 14.5 18.5248 270 368 470

Weight 625 1360 2510 4020284 617 1139 1823



• Pressure-seal bonnet, OS & Y.• Y-Pattern.• Integral Stellite seats and back-

seats.• Body-guided disk piston.• 13% chromium stainless steel

stem.• Asbestos free graphitic packing.• Equipped with equalizer.• Yoke bushing thrust bearings.


STD CL SPL CL



*Impactor handwheel is standard on size 4 & larger. Impactogear is available on size 6 and larger.

Dimensions - Flite Flow

Series 4500


Check Valves Series 4500

C


Standard Features• Bodies and covers are cast steel (WCB,

WC6, WC9, C12A, CF8M or CF8C).• Pressure-seal cover.• Y-Pattern design.• Integral Stellite seats.• Body-guided disk piston.• Equipped with Equalizer.

Figure No. 4592Y/5092Y NPS 4 6 8 10DN 100 150 200 250

A - End to End 28 31 31 39.75711 787 787 1010

E - Center to Top 14 18 20 26356 457 508 660

H - Equalizer Clearance 9.75 10.6 14.5 18.5248 269 368 470

Weight 415 800 1500 2300188 360 675 1035


STD CL SPL CL


Bold face numerals are in inches and pounds.Blue numerals are in millimeters and kilograms.Dimensions - Flite Flow

Series 4500


Check Valves Class 4500 11,110 PSI @ 100°F (766.2 BAR @ 38°C)

C

Figure No. 4570Y/5070Y NPS 6 8DN 150 200

A - End to End 20 24508 610

E - Center to Top 10.25 11.375260 289

W -Width 17.5 19445 483

Weight 520 1330234 599



• Pressure-seal cover.• Tilting Disk design.• Integral Stellite seats.


STD CL SPL CL

4570Y 5070Y Tilting Disk Buttwelding 6 (150) and 8 (200)


Class 4500 (PN 760)



Edward Valves

D Special Application Valves Section D

EV-1004th Edition


D

NACE VALVES

(NATIONAL ASSOCIATION OF CORROSION ENGINEERS)Edward can provide valves constructed of materials that meet NACE standard MR-01-75 for sour service.

This standard entitled “Sulfide Stress Cracking Resistant Metallic Materials For Oil Field Equipment” covers materialrequirements for production, drilling, gathering and flow line equipment used in hydrogen sulfide bearing hydrocarbonservice.

SPECIAL TRIMEdward Valves provides a standard valve trimthis is compatible with the valve body chemistry,pressure class, operating temperature, and fluid.However, on application special trim materials tomeet specific customer needs can be provided.Edward also can provide cobalt free trim fornuclear applications.

• Cobalt Based Alloy 6• Cobalt Based Alloy 21• Iron Based Alloy• Nickel Based Alloy• Austenitic stainless steel• Martensitic stainless steel• Precipitation hardened stainless steel• Super alloy steel

NON-STANDARD ENDSMost Edward forged and cast steel valves canbe provided with welding ends or flanged ends(small forged valves with threaded or socketweld ends also). On special order non-standardends can be furnished to meet specific customerrequirements. A partial list of available optionsinclude:

• GRAYLOC hubs.• Special flange facings.• Non-standard end-to-end lengths - most

Edward valves are manufactured to ANSIB16.10 criteria however, non- standard endsare available as a special order.

• Venturi ends.• Flanged by buttweld.• Blank ends.• Others as required.

Edward Valves • 1900 South Saunders Street, Raleigh, North Carolina 27603 • 1-800-225-6989 • 1-919-832-0525 • Fax 1-919-831-3369 D2


D

Edward Throttle Valves

Edward standard cast steel valves with the body-guided feature have excel-lent ability to handle flow at high pressure differentials. However, forimproved accuracy, cast globe and angle stop valves can be equipped with aspecial throttle disk. Disk shape provides good regulation over wide rangesof flow. When required, valves equipped with a throttle disk may also beordered with a motor operator. Edward cast stop valves equipped with athrottle disk are identified by adding the suffix “K” to the standard valve figure number.

Comparison Curves Of TypicalStandard Disk With ThrottleDisk

The standard stop valve disk gives rapidincreases in flow for each increment of liftat low lifts and small increases in flow athigher lifts. This is not desirable in manyapplications where the valve is used forcontrolling flow rate. The conical projectionon the throttle disk gives straight line con-trol at the lower lifts as long as it remainsin the seat. Once the cone lifts entirely outof the seat it permits high capacity at highlifts with only moderate pressure droppenalty.

For check or stop-check applications with a broad range offlow conditions, a “skirted” disk,identified by adding the suffix “K” tothe valve figure number may pro-vide the required minimum lift atlow flow while providing acceptablepressure drop at maximum flow.Specifically, the illustrated disk witha Mini-Skirt provides good low-flowperformance while reducing CV byonly 10%. See Edward TechnicalArticle V-Rep 92-1 for assistanceon high turndown applications.

Edward Skirted Check Valves


Blow-Off Valves Class 300

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Figure 1443ANGLE

BLOW-OFF VALVE

Figure 1441STRAIGHTWAY

BLOW-OFF VALVE

Standard Features• Size 1-1/2 and 2 bodies &

bonnets are forged steel (A105).• Size 2-1/2 bodies and bonnets

are cast steel (WCB).• Bolted bonnet, OS & Y.• Straightway and angle design.• Size 1-1/2 and 2 have hardened

stainless steel disk.• Size 2-1/2 has Stellite faced disk.• Integral Stellite seat.• Integral backseat.• 13% chromium stainless steel

stem.• Asbestos free spiral wound

bonnet gasket.• Impactor handle.

StandardsEdward valves sold for blow-off service are designed and manufac-tured to comply with all Boiler Codecriteria for valves used in theseapplications.

Note: For Tandem Blow-off valve operation:Opening - Open upstream valve completely, then slowly open the downstream valve.Closing - Close the downstream valve completely and tightly seat, then close and tightly seat the upstream valve.

FIG. NO. TYPE ENDS NPS (DN)1441 Globe Flanged 1-1/2 (40) thru 2-1/2 (65)

1441Y Globe Socket Welding 1-1/2 (40) & 2 (50)1441Y Globe Buttwelding 2-1/2 (65)1443 Angle Flanged 1-1/2 (40) thru 2-1/2 (65)

1443Y Angle Socket Welding 1-1/2 (40) & 2 (50)1443Y Angle Buttwelding 2-1/2 (65)


Flanged or Welding Ends Class 300 Primary ServiceMaximum Boiler Drum Pressure* 490 PSI (33.8 BAR)

Maximum Non-Shock 740 PSI @ 100°F (51.0 BAR)

Pressure Ratings (B16.34 Standard Class)

* This adjusted pressure rating represents the maximum allowable working pres-sure for this Class valve in boiler feed and blow-off line service.

1443/1441


Blow-Off Valves Class 300

DBold face numerals are in inches and pounds.Red numerals are in millimeters and kilograms.

Figure No. 1441/1441Y, 1443/1443Y NPS 1-1/2 2 2-1/2DN 40 50 65

A - End to End, Globe (Welding) 6.8 8 11.5173 203 292

B - Center to End, Angle (Welding) 3.4 3.8 5.886 97 147

C - Face to Face, Globe (Flanged) 12 12.8 14305 325 356

D - Center to Face, Angle (Flanged) 4.5 5.3 5.8114 135 147

E - Center to Top, Globe (Open) 13.4 15.3 15.9340 389 404

F - Center to Top, Angle (Open) 12.3 13.9 14.3312 353 363

G - Handwheel/Handle Diameter 11 11 11279 279 279

Weight, Globe (Flanged) 42 60 9218.9 27 41.7

Weight, Globe (Welding) 27 38 6012.2 17.1 27

Weight, Angle (Flanged) 39 53 8217.6 23.9 37.2

Weight, Angle (Welding) 25 36 5411.3 16.2 24.3



Blow-Off Valves Class 400 & 600

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Figure 1641STRAIGHTWAY

BLOW-OFF VALVE

Figure 1643ANGLE

BLOW-OFF VALVE

1643/1641Angle Globe

Flanged or Welding Ends Class 600 Primary ServiceMaximum Boiler Drum Pressure* 935 PSI (64.5 BAR)

Maximum Non-Shock 1480 PSI @ 100°F (102.1 BAR)

FIG. NO. TYPE ENDS NPS (DN)1641 Globe Flanged 1-1/2 (40) thru 2-1/2 (65)

1641Y Globe Socket Welding 1-1/2 (40) & 2 (50)1641Y Globe Buttwelding 2-1/2 (65)1643 Angle Flanged 1-1/2 (40) thru 2-1/2 (65)

1643Y Angle Socket Welding 1-1/2 (40) & 2 (50)1643Y Angle Buttwelding 2-1/2 (65)

Pressure Class 400 (PN 68) & 600 (PN 110)


* This adjusted pressure rating represents the maximum allowable working pres-sure for this Class valve in boiler feed and blow-off line service.

Note: For Tandem Blow-off valve operation:Opening - Open upstream valve completely, then slowly open the downstream valve.Closing - Close the downstream valve completely and tightly seat then close and tightly seat the upstream valve.

Standard Features• Size 1-1/2 and 2 bodies &

bonnets are forged steel (A105).• Size 2-1/2 bodies and bonnets

are cast steel (WCB).• Bolted bonnet, OS & Y.• Straightway and angle design.• Size 1-1/2 and 2 have hardened

stainless steel disk.• Size 2-1/2 has Stellite faced disk.• Integral Stellite seat.• Integral backseat.• 13% chromium stainless steel

stem.• Asbestos free spiral wound

bonnet gasket.• Impactor handle.

StandardsEdward valves sold for blow-off service are designed and manufactured to comply with allBoiler Code criteria for valves used in these applications.



DBold face numerals are in inches and pounds.Red numerals are in millimeters and kilograms.

Figure No. 1641/1641Y, 1643/1643Y NPS 1-1/2 2 2-1/2DN 40 50 65

A - End to End, Globe (Welding) 6.8 8 11.5173 203 292

B - Center to End, Angle (Welding) 3.4 3.8 5.886 97 147

C - End to End, Globe (Flanged) 12.4 13.1 14.4315 333 366

D - Center to End, Angle (Flanged) 4.8 5.8 6.5122 147 165

E - Center to Top, Globe (Open) 13.4 15.3 15.9340 389 404

F - Center to Top, Angle (Open) 12.4 13.9 14.3315 353 363

G - Handwheel/Handle Diameter 11 11 11279 279 279

Weight, Globe (Flanged) 44 62 9519.8 27.9 43.1

Weight, Globe (Welding) 27 38 7612.2 17.1 34.2

Weight, Angle (Flanged) 41 55 8518.5 24.8 38.5

Weight, Angle (Welding) 25 36 6611.3 16.2 29.7




D

Standard Features• Body Material is A105 carbon

steel.• Unwelded (graphitic seal) or

welded bonnet.• OS & Y.• Y-Pattern.• Body-guided investment cast

Stellite disk.• Integral Stellite seat.• Asbestos free graphitic packing.• Impactor Handle/Impactor

Handwheel.

FIG. NO.TYPE ENDS NPS (DN)WELDED UNWELD

1500 2500 1500 2500

36124 66124 36224 66224 Globe Socket Welding 1-1/2 (40) thru 2 (50)36128 66128 36228 66228 Globe Buttwelding 2-1/2 (65)

* This adjusted pressure rating represents the maximum allowable working pressure for this Class valvein boiler feed and blow-off line service.

# Rating exceeds critical pressure of water.


Pressure Class 1500 (PN 260) & 2500 (PN 420)

Socket or Welding EndsClass 1500 Class 2500

Primary Service Primary Service

Maximum Boiler Drum Pressure*2455 PSI 3206 PSI#

(169.3 BAR) (221.1 BAR)

Maximum Non-Shock3705 PSI @ 100°F 6170 PSI @ 100°F

(255.5 BAR) (425.5 BAR)

Note: For Tandem Blow-off valve operation:Opening - Open upstream valve completely, then slowly open the downstream valve.Closing - Close the downstream valve completely and tightly seat, then close and tightly seat the upstream valve.

Refer to Forged Steel Section, Pages B-15 and B-18 - Univalve Stop Valve, Class1690 and 2680 for dimensions, etc.

Standard construction Edward Class 1690 and Class 2680 carbon steel Univalves are supplied for Class 1500 and Class 2500 Blow-Off valve applications.Although these Univalves are manufactured and tagged to ANSI B16.34 Limited Class ratings, these valves meet and exceed all Boiler Code criteria for boiler feed and blow-off line service.


Stop-Check & Check Valves Elbow Down

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Edward Elbow Down stop-check valves are available for special service requirements.Because they eliminate the need for a piping elbow, and at the same time offer tight shut-off with minimum pressuredrop, they are commonly used at discharge of circulating pumps on controlled circulation boilers.

Standard Features• Bodies and bonnets/covers are

cast steel (WCB or WC6).• Pressure seal bonnet/cover.• Integral Stellite seat, disk seating

& backseat.• Disk body-guided.• Impactor handwheel/impactogear.• Equipped with equalizer.• Buttwelding ends.• Asbestos free packing.

Bold face numerals are in inches and pounds.Red numerals are in millimeters and kilograms.


4448Y Stop Check Buttwelding 10 (250)4498Y Check Buttwelding thru 16 (400)7548Y Stop Check Buttwelding 10 (250)7598Y Check Buttwelding thru 18 (450)

Figure No. 7548Y, 7598Y NPS 10 12 14 16 18DN 250 300 350 400 450

A - Center to End, (Inlet) 23 27 29 36 39.25584 675 737 914 997

B - Center to End, (Outlet) 13 14 15 17 21.25330 356 381 432 540

Figure No. 4448Y, 4498Y NPS 10 12 14 16DN 250 300 350 400

A - Center to End, (Inlet) 23 27.56 35.06 34584 700 891 864

B - Center to End, (Outlet) 12.25 14.56 18.94 18.56311 370 481 471

Dimensions

Dimensions

E, F & G - Upon request.

E, F & G - Upon request.

Elbow Down*

* Pressure temperature ratings available on request.


Hydraulic Stop Valves 5,000 & 10,000 PSI (345 & 690 BAR) CWP

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Standard Features• Body is of forged alloy steel grade

F-11.• Bonnet is zinc coated for corro-

sion resistance.• 13% chromium stainless steel

replaceable seat.• 13% chromium stainless steel

stem and swivel needle disk.• Hardfaced seat and disk standard

on Figure 5158 & 9158 valvesonly.

• Impactor handle, size 1 and larger.

• Buna-N “O” rings at body-bonnetand body seat joints for leak-tightconnection.

• Asbestos free packing.

For Pressure up to 10,000 PSI (690 BAR) - Edward high pressure forged steelhydraulic stop valves are used in applications involving high pressures and withtemperatures to 300°F (149°C). They provide fast, certain shut-off or accurate pres-sure control, give long life, reduce replacement costs and lower maintenance time.


5,000 10,000

158 Globe Threaded1/4 (6) thru 2 (50)158Y Globe Socket Welding

5158 GlobeFlanged†

2 (50)Series 1500

9158 GlobeFlanged†

2-1/16 (52.4) onlySeries 6BX

5,000 & 10,000 PSI CWP


Figure No. 158/158Y, 5158, NPS 1/4 3/8 1/2 3/4 1 1-1/4 1-1/2 2 2 (5158) 2-1/16†

9158 DN 8 10 15 20 25 40 40 50 50 52.4

A - End to End, Globe 3.8 3.8 3.8 4.5 5.1 7.5 7.5 9 97 97 97 114 130 191 191 229

C - Contact Face to 13.4 13.3Contact Face 340 338

E - Center to Top, (Open) 8.4 8.4 8.4 9.6 12 14.1 14.1 18 17.9 17.9213 213 213 244 305 358 358 457 455 455

G - Handwheel/Handle Diameter 5.4 5.4 5.4 6.4 11* 11* 11* 14* 14* 14*134 137 137 163 279 279 279 356 356 356

T - Flange Diameter 8.5 7.9 216 201

U - Flange Thickness 1.8 1.7 46 43

Diameter of Ring Groove & 3-3/4-#24 BX-152Groove Number

Diameter of Bolt Circle 6.5 6.25 165 160

Bolts (8)-7/8 (8)-3/4

Weight 5.1 5.1 5.1 6.8 12.5 32 32 53 120 1242.3 2.3 2.3 3.1 5.6 14.4 14.4 23.9 54 55.8

Dimensions

† Flanges, Ring Joint Facings and Drilling according to A.P.I. standards. Size depicts flange size only and not port size. * Impactor Handle.

THESE HYDRAULIC VALVES ARE DESIGNED AND RATED TO EDWARD VALVE STANDARDS.SEE PARAGRAPH 3.2, PAGES G59-G60 FOR ADDITIONAL INFORMATION.


Hydraulic Check Valves 5,000 & 10,000 PSI (345 & 690 BAR) CWP

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THESE HYDRAULIC VALVES ARE DESIGNED AND RATED TO EDWARD VALVE STANDARDS.SEE PARAGRAPH 3.2, PAGES G59-G60 FOR ADDITIONAL INFORMATION.

Standard Features• Body is of forged alloy steel

grade F-11.• Carbon steel cover has a long

guide for accurate ball disk seat-ing.

• Seat and ball are 13% chromium stainless steel.

• Hardfaced seat standard on fig-ure 5160 and 9169 only.

• Ball is precision ground for tightseating.

• Stainless steel spring capable ofseating the ball disk in viscousfluids.

• Body-cover and body-seat jointshave Buna-N “O” rings for leaktight connections.


5,000 10,000

160 Globe Threaded1/4 (6) thru 2 (50)160Y Globe Socket Welding

5160 GlobeFlanged*

2 (50)Series 1500

9160 GlobeFlanged*

2-1/16 (52.4) onlySeries 6BX

Recommended for use with high viscosity fluids only.For pressure up to 10,000 PSI (690 BAR) - Edward high pressure forged steelhydraulic check valves are used in applications involving high pressures andwith temperatures to 300°F (149°C).

5,000 & 10,000 PSI CWP


Figure No. 160/160Y, 5160, NPS 1/4 3/8 1/2 3/4 1 1-1/4 1-1/2 2 2 (5150) 2-1/169160 DN 8 10 15 20 25 40 40 50 50 52.4

A - End to End 3.8 3.8 3.8 4.5 5.1 7.5 7.5 9 97 97 97 114 130 191 191 229

C - Contact Face to 13.4 13.3Contact Face 340 338

E - Center to Top 3 3 3 3.3 4.4 5.2 5.2 7.3 6.1 6.176 76 76 84 112 132 132 185 155 155

T - Flange Diameter 8.5 7.9 216 201

U - Flange Thickness 1.8 1.7 46 43

Diameter of Ring Groove & 3-3/4-#24 BX-152Groove Number 95

Diameter of Bolt Circle 6.5 6.25 165 159

Bolts (8)-7/8 (8)-3/4

Weight 2.6 2.6 2.6 4 7 19 19 34 101 1051.2 1.2 1.2 1.8 3.2 8.6 8.6 15.3 45.5 47.3

Dimensions

* Flanges, Ring Joint Facings and Drilling according to A.P.I. standards. Size depicts flange size only and not port size.


Stop Valves Series 1500 3600 PSI @ 100°F (248.3 BAR @ 38°C)

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THESE SERIES 1500 VALVES ARE DESIGNED AND RATED TO EDWARD VALVE STANDARDS.SEE PARAGRAPH 3.2, PAGES G59-G60 FOR ADDITIONAL INFORMATION.

Standard Features• Bodies and bonnets are of forged

steel (F11).• Bolted bonnet, OS & Y.• Globe or angle design.• Body-guided hardened stainless





Series 1500


Figure No. 1028, 1029 NPS 1/2 3/4 1 1-1/4 1-1/2 2DN 15 20 25 32 40 50

C - Face to Face, Globe (Flanged) 8.5 9 10 12 12 14.5216 229 254 305 305 368

D - Center to Face, Angle (Flanged) 4.3 4.5 5 6 6 7.3109 114 127 152 152 185

E - Center to Top, Globe (Open) 7 7.7 7.7 11.1 11.1 12178 196 196 282 282 305



Weight, Globe 15 19 26 38 47 776.8 8.6 11.7 17.1 21.2 34.7

Weight, Angle 15 20 26 41 49 806.8 9 11.7 18.5 22.1 36



Stop Valves Series 1500 3600 PSI @ 100°F (248.3 BAR @ 38°C)

D


Standard Features• Bodies and bonnets are of

forged steel (A105 or F11).• Bolted bonnet, OS & Y.• Y-Pattern or angle design.• Body-guided hardened stainless







Series 1500



A - End to End, Globe 3 3 3 3.6 4.3 5.8 5.8 6.576 76 76 91 109 147 147 165





Weight, Globe 4 4 4 5.5 8 17 17 241.8 1.8 1.8 2.5 3.6 7.7 7.7 10.8

Weight, Angle 4 4 4 5.5 7.5 17 17 251.8 1.8 1.8 2.5 3.4 7.7 7.7 11.3



Stop-Check Valves Series 1500 3600 PSI @ 100°F (248.3 BAR @ 38°C)

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steel (F11).• Bolted bonnet, OS & Y.• Globe or angle design.• Body-guided hardened stainless





Series 1500


Figure No. 1046, 1047 NPS 1/2 3/4 1 1-1/4 1-1/2 2DN 15 20 25 32 40 50

C - Face to Face, Globe (Flanged) 8.5 9 10 12 12 14.5216 229 254 305 305 368

D - Center to Face, Angle (Flanged) 4.3 4.5 5 6 6 7.3109 114 127 152 152 185

E - Center to Top, Globe (Open) 7 7.7 7.7 11.1 11.1 12178 196 196 282 282 305



Weight, Globe 15 19 26 38 47 776.8 8.6 11.7 17.1 21.2 34.7

Weight, Angle 15 20 26 41 49 806.8 9 11.7 18.5 22.1 36



Stop-Check Valves Series 1500 3600 PSI @ 100°F (248.3 BAR @ 38°C)

D









A - End to End, Globe 3 3 3 3.6 4.3 5.8 5.8 6.576 76 76 91 109 147 147 165





Weight, Globe 4 4 4 5.5 8 16 16 231.8 1.8 1.8 2.5 3.6 7.3 7.3 10.4

Weight, Angle 4 4 4 5.5 7.5 16 16 241.8 1.8 1.8 2.5 3.4 7.3 7.3 10.9





Series 1500


Piston Check Valves Series 1500 3600 PSI @ 100°F (248.3 BAR @ 38°C)

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steel (A105 or F11).• Bolted cover.• Y-Pattern or globe design.• Body-guided hardened stainless


gasket.• Stainless steel spring.


1038Y Y-Pattern Socket Welding 2 (50)1058 (F11) Globe Flanged 1/2 (15) thru 2 (50)

Series 1500


Figure No. 1038/1038Y NPS 1/4 3/8 1/2 3/4 1 1-1/4 1-1/2 2DN 8 10 15 20 25 32 40 50

A - End to End 3 3 3 3.6 4.3 5.8 5.8 6.576 76 76 91 109 147 147 165

E - Center to Top 2.8 2.8 2.8 3.3 3.8 4.6 4.6 5.171 71 71 84 97 117 117 130

Weight 2.5 2.5 2.5 3.5 5.5 11 11 151.1 1.1 1.1 1.6 2.5 5 5 6.8

Dimensions - Globe

Figure No. 1058 NPS 1/2 3/4 1 1-1/4 1-1/2 2DN 15 20 25 32 40 50

C - Face to Face (Flanged) 8.5 9 10 12 12 14.5216 229 254 305 305 368

E - Center to Top 2.7 3.1 3.1 4.2 4.2 4.769 79 79 197 107 119

Weight 14 17 24 32 41 696.3 7.7 10.8 14.4 18.5 31.1

Dimensions - Globe


Ball Check Valves Series 1500 3600 PSI @ 100°F (248.3 BAR @ 38°C)

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steel (A105 or F11).• Bolted cover.• Y-Pattern.• Integral Stellite seat.• Asbestos free spiral wound

bonnet gasket.• Stainless steel spring.• Stainless steel ball.



Series 1500


Figure No. 1032/1032Y NPS 1/4 3/8 1/2 3/4 1 1-1/4 1-1/2 2DN 8 10 15 20 25 32 40 50

A - End to End 3 3 3 3.6 4.3 5.8 5.8 6.576 76 76 91 109 147 147 165

E - Center to Top 2.8 2.8 2.8 3.3 3.8 4.6 4.6 5.171 71 71 84 97 117 117 130

Weight 2.5 2.5 2.5 3.5 5.5 11 11 151.1 1.1 1.1 1.6 2.5 5 5 6.8

Dimensions - Globe


Strainers Class 800 2000 PSI @ 100°F (137.9 BAR @ 38°C)Series 1500 3600 PSI @ 100°F (248.3 BAR @ 38°C)

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THE CLASS 800 STRAINERS ARE RATED IN ACCORDANCE WITH ASME/ANSI B16.34 CRITERIA.THE SERIES 1500 STRAINERS ARE DESIGNED AND RATED TO EDWARD VALVE STANDARDS.SEE PARAGRAPH 3.2, PAGES G59-G60 FOR ADDITIONAL INFORMATION.


carbon steel.• Screen is stainless steel.• Screen specification (400,

.027 dia. holes per square inch).• Removable drain plug for easy

cleaning.

FIG. NO.ENDS NPS (DN)800 1500

238 338 Threaded 1/4 (8) thru238Y 338Y Socket Welding 2 (50)

Pressure Class 800 (PN 130) andSeries 1500



A - End to End 3 3 3 3.6 4.3 5.8 5.8 6.576 76 76 91 109 147 147 165

L - Center to Bottom 3.4 3.4 3.4 4.8 6.1 10.4 10.4 12.186 86 86 122 155 264 264 307

Plug Size (NPT) 1/4 1/4 1/4 1/4 1/2 1/2 1/2 1/26 6 6 6 13 13 13 13

Weight 2 2 2 4 6 13 13 20.9 .9 .9 1.8 2.7 5.9 5.9 9

Special interior surface preparation for corrosive and erosive water services available on size 1 (DN 25) only.




D

Standard Features• Available Body Materials

− A105 carbon steel.− F22 alloy steel.− F91 alloy steel.− F316 stainless steel.

• Unwelded (graphitic seal) orwelded bonnet.





WELDED UNWELD.

36122 36222 Y-Pattern Flanged 1/2 (15) thru 2 (50)

Figure No. 36122 NPS 1/2 3/4 1 1-1/2 236222 DN 15 20 25 40 50

A - End to End 10.0 10.0 10.0 12.0 14.525.4 254 254 305 368

AB - Handwheel Clearance, (Open) 3.0 3.0 3.0 5.3 4.976.2 76.2 76.2 135 125

B - Center to End 6.9 6.9 6.9 8.3 10.0175 175 175 211 254

E - Center to Top, (Open) 11.6 11.6 11.6 16.3 18.5295 295 295 414 470

G - Handwheel/Handle Diameter 8.5 8.5 8.5 14.3* 14.3*216 216 216 363* 363*

Weight, Welded & Unwelded 31 34 36 75 12014.1 15.5 16.4 34 55

Dimensions - Globe

* Impactor Handle



Features and Description of Edward PressurCombo Valves

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1. Stem has ACME threads, is ground to a finefinish and is hardened to resist wear.

2. Yoke bushing material has low coefficient offriction which substantially reduces torque andstem wear and eliminates galling. Mechanicalupset locks bushing to yoke.

3. Yoke-bonnet assembly is two-piece to facili-tate disassembly for faster in-line internal repairs.

4. Inclined stem construction and optimum flowshape minimizes flow direction changes andreduces pressure drop.

5. Body-guided disk utilizes anti-thrust rings toeliminate misalignment, galling and stem bend-ing.

6. Integral hardsurfaced seat provides positiveshutoff and long seat life.

7. Handwheel is rugged and knobbed to providesure grip even when wearing gloves.

8. Impactor handle provides many times theclosing force of an ordinary handwheel for posi-tive seating.

9. Threaded bonnet has ACME threads forresistance to galling and ease of disassembly.

10. Stem packing system utilizes flexiblegraphite packing material with carbon fiber anti-extrusion rings for optimum sealability and life.

11. Bonnet locking collar.

12. Bonnet seal ring is die formed flexiblegraphite seated to a prescribed bonnet torque toprovide reliable bonnet seal.


14. Position indicator provides positive indica-tion of closed valve.

15. PressurSeat features live-loaded, pressure-energized Stellite seat, providing tight shut-offunder varying pressures and temperatures.

16. PressurEater nozzle prevents excess wearon valve seat.

17. Valve test report is an actual report of theindividual valve hydrostatic test.

18. Nameplate contains all relevant data foroperational and maintenance records.

9.8.

1.1.

10.11.

12.

13.

2.

3.

4.5.

4.17.

7.

3.

15.

13.

12.

11.

10.

14.

2.

5. 16.6.

Note: Also available as a single valve.


PressurCombo Class 1690 4225 PSI @ 100°F (291.4 BAR @ 38°C)

D

Standard Features• Available Body Material

− A105 carbon steel.− F22 alloy steel.− F91 alloy steel.

• Available as tandem assembly or individual valves.**



Stellite disk.• Investment cast Stellite seat in

PressurSeat and PressurCombo.• Integral Stellite seat in

PressurEater.• PressurEater & PressurCombo

have outlet choke/nozzles.• Integral Stellite backseat.• Asbestos free graphitic packing.• PressurSeat and PressurCombo

have position indicators.


WELDED UNWELD.

**36124 **36224 Y-Pattern Socket Welding 1/2 (15) thru 2 (50)**36128 **36228 Y-Pattern Buttwelding 2-1/2 (65) thru 4 (100)



Figure No. **36124, **36128, NPS 1/2 3/4 1 1-1/4 1-1/2 2 2-1/2 3 4**36224, **36228 DN 15 20 25 32 40 50 65 80 100

A - End to End 6 6 6 6.7 6.7 8.2 10.7 10.7 12.8152 152 152 170 170 208 272 272 325



E - 1 Center to Top, (Open) 12.2 12.2 12.2 13.7 13.7 17.1 20.3 20.3 20.7310 310 310 348 348 434 516 516 526

E - 2 Center to Top (Open) 12.1 12.1 12.1 14.6 14.6 17.7 19.6 19.6 20.0307 307 307 371 371 450 498 498 508

G - 1 Handwheel/Handle Diameter 8.5 8.5 8.5 8.5 8.5 14.0 18.0 18.0 18.0216 216 216 216 216 356 457 457 457

G - 2 Handwheel/Handle Diameter 8.5 8.5 8.5 11.0* 11.0* 14.3* 16.0** 16.0** 16.0**216 216 216 279 279 363* 406** 406** 406**

Weight, Welded (Tandem DS/DE) 51 51 51 79 79 124 210 210 28623 23 23 36 36 56 95 95 130

Weight, Unwelded (Tandem DS/DE) 53 53 53 83 83 128 218 218 29424 24 24 38 38 58 99 99 133

Dimensions - Globe

* Impactor Handle ** Impactor Handwheel

** DS36xxx PressurSeat Inv. cast Stellite seatDE36xxx PressurEater Integral Stellite seat, chokeDC36xxx PressurCombo Inv. cast Stellite seat, choke

MAXIMUM RECOMMENDED DIFFERENTIAL PRESSURE = 4200 PSI (289.7 BAR)

Flow, DP

Flow coefficients are listed on page G32.


PressurCombo Class 2680 6700 PSI @ 100°F (462.1 BAR @ 38°C)

D




• Unwelded (graphitic seal) orwelded bonnet.









WELDED UNWELD.


Figure No. **66124, **66128, NPS 1/2 3/4 1 1-1/4 1-1/2 2 2-1/2 3 4**66224, **66228 DN 15 20 25 32 40 50 65 80 100

A - End to End 6 6 6 6.7 6.7 10.7 12.8 12.8 12.8152 152 152 170 170 272 325 325 325





G - 1 Handwheel/Handle Diameter 8.5 8.5 8.5 8.5 8.5 14 18 18 18216 216 216 216 216 356 457 457 457

G - 2 Handwheel/Handle Diameter 8.5 8.5 8.5 11* 11* 14.3* 16** 16** 16**216 216 216 279* 279* 363* 406** 406** 406**



* Impactor Handle ** Impactor Handwheel Weights are listed for tandem assembly combo. Flow coefficients are listed on page G32.

Dimensions - Globe

** DS66xxx PressurSeat Inv. cast Stellite seatDE66xxx PressurEater Integral Stellite seat, chokeDC66xxx PressurCombo Inv. cast Stellite seat, choke



Flow, DP


PressurCombo Class 4500 11,250 PSI @ 100°F (775.9 BAR @ 38°C)

D












WELDED UNWELD.




Figure No. **96124, **96128, NPS 1/2 3/4 1 1-1/4 1-1/2 2 2-1/2 3 4**96224, **96228 DN 15 20 25 32 40 50 65 80 100

A - End to End 8.2 8.2 8.2 8.2 8.2 12.8 12.8 12.8 12.8208 208 208 208 208 325 325 325 325





G - 1 Handwheel/Handle Diameter 8.5 8.5 8.5 8.5 8.5 14.0 14.0 14.0 14.0216 216 216 216 216 356 356 356 356

G - 2 Handwheel/Handle Diameter 8.5 8.5 8.5 8.5 8.5 16.0** 16.0** 16.0** 16.0**216 216 216 216 216 406** 406** 406** 406**



Dimensions - Globe



Flow coefficients are listed on page G32.

** DS96xxx PressurSeat Inv. cast Stellite seatDE96xxx PressurEater Integral Stellite seat, chokeDC696xxx PressurCombo Inv. cast Stellite seat, chokeFlow, DP


Features and Descriptions ofEdward Hermavalve Hermetically-Sealed Valves

D

9.

8.

1.

2.

3.

4.

5.

6.

7.

10.11.

12.

13.

14.

15.

16.

17.

18.


Features and Descriptions of Edward Hermavalve Hermetically-Sealed Valves

D

1. Position indicator shows whether the valve is open or closed.

2. Handwheel is rugged and knobbed to permit sure grip even whenwearing gloves.

3. Needle thrust bearings minimize torque. Their upper yoke locationprotects from heat and allows lubrication.

4. Yoke bushing. Revolving bushing of aluminum bronze material haslow coefficient of friction, substantially reduces torque, stem wear andeliminates galling.

5. Non-revolving stem is stainless steel. It is ground to a fine finishand keyed to the yoke to prevent rotation and torsional stress on thediaphragm.

6. Yoke of carbon steel.

7. Diaphragm disk is a unique patented shape which maximizesdiaphragm life.

8. Diaphragm of multi-ply flexible metal provides a reliable primarystem seal.

9. Body with inclined stem construction and unique flow shape mini-mizes flow directional changes and cuts pressure drop.

10. Integral hardfaced seat of hard, heat resistant hardfacing materialis integrally welded to the body.

11. Solid Stellite disk assures maximum seating life.

12. Disk guide assembly assures disk/seat alignment. Its completelyencapsulated spring assures full disk life.

13. Diaphragm seal weld is a unique seal weld which makes thediaphragm an integral part of the bonnet and eliminates a potentialleak path past the stem.

14. Backseat provides a secondary stem seal backup.

15. Body-bonnet seal features leak-proof seal-welded construction.The weld is for seal only; the threaded section carries the pressureload. Canopy weld in stainless steel; fillet weld in carbon steel.16.Bonnet is barstock steel with gall-resistant ACME threads to insureeasy disassembly from body.

16. Bonnet is barstock steel with gall-resistant Acme threads to insureeasy disassembly from body.

17. Backup packing with O.S. & Y. design allows for inspection oraddition of packing without disassembling valve.

18. Adjustable gland screws with O.S. & Y. design allow for easyaccess to packing adjustment if necessary.

What is a Hermavalve? A Hermavalve is a hermetically sealed valvethat cannot leak to the environment. The Edward Hermavalve cannotleak because it is double seal welded:

1. The multi-ply flexible metal diaphragm is seal welded to the bonnet.

2. The body-to-bonnet joint is also seal welded.

This patented construction eliminates any potential leakage through amechanical joint. It is more than just packless, it is hermetically sealed.

Zero leakage to environment Welded, heretic design and depend-able metal diaphragm help to insure zero leakage for the life of thevalve. In approved services the valve is warranted against leakage tothe environment.

High efficiency flow-shape Unique flow shape assures high CV

comparable to or greater than conventionally packed valves provenby extensive flow testing.

Non-revolving stem design Assures lowest possible operatingtorque and is the only absolute method of avoiding diaphragm damagecaused by rotational forces from a revolving stem.

Two backup stem seals 1) Packing and 2) backseat provideredundancy in backup seals.


Part Specification List For Edward Hermavalve

D

DESCRIPTION ASTM NO. ASTM NO. ASTM NO.

Body A-105 A-182 Grade F22 A-182 Grade F316

Disk A-565 Grade 615 A-565 Grade 615 A-732 Grade 21

Body Seat Stellite 21 Stellite 21 Stellite 21

Stem A-479 T410 Class 3 A-479 T410 Class 3 A-479 T410 Class 3

Junk Ring A-582 T416 A-582 T416 A-582 T416

Bonnet A-696 Grade C A-739 Grade B22 A-479 T316

Yoke Bolt A-307 Grade A A-307 Grade A A-307 Grade A

Packing Flexible Graphite System Flexible Graphite System Flexible Graphite System

Gland A-696 Grade C A-696 Grade C A-696 Grade C

Retaining Ring Nickel Plated Steel Nickel Plated Steel Nickel Plated Steel

Gland Adjusting Screw A-193 Grade B6 A-193 Grade B6 A-194 Grade B6

Stem Guide Bushing A-696 Grade C Nickel A-696 Grade C Nickel A-696 Grade C NickelPlated Plated Plated

Yoke Bolt Nut A-563 Grade A A-563 Grade A A-563 Grade A

Yoke A-216 Grade WCB A-216 Grade WCB A-216 Grade WCB

Yoke Bushing B-150 Alloy B-150 Alloy B-150 AlloyC61900 or C62300 C61900 or C62300 C61900 or C62300

Drive Pin Alloy Steel Alloy Steel Alloy Steel

Key A-331 Grade 4140 A-331 Grade 4140 A-331 Grade 4140

Spring Housing A-582 T416 A-582 T416 A-479 T316

Diaphragm Ring A-696 Grade C A-739 Grade B22 A-479 T316

Diaphragm Assembly B-670 Alloy 718 B-670 Alloy 718 B-670 Alloy 718(Inconel) (Inconel) (Inconel)

Diaphragm Disk A-732 Grade 21 A-732 Grade 21 A-732 Grade 21

Shims A-167 T316 A-167 T316 A-167 T316

Disk Collar A-565 Grade 615 A-565 Grade 615 A-479 T316

Spring Inconel X-750 Inconel X-750 Inconel X-750

Handwheel Malleable or Ductile Iron Malleable or Ductile Iron Malleable or Ductile Iron

Handwheel Nut Steel Steel Steel

Indicator A-479 T316 A-479 T316 A-479 T316

Thrust Bearing Steel Steel Steel

Lube Fitting Steel Steel Steel


Hermavalve Hermetically-Sealed Valves

D


− A105 carbon steel.− F22 alloy steel.− F316 stainless steel.

• Seal welded diaphragm and sealwelded body/bonnet joint.

• OS & Y.• Y-Pattern.• Non-revolving stem with position

indicator.• Back-up asbestos free graphitic

packing and secondary stembackseat.

• Integral backseat.• Knobbed handwheel.

FIG. NO. TYPE ENDS PORT NPS (DN)

16004 Y-Pattern Socket Welding Regular 1/2 (15) thru16008 Y-Pattern Buttwelding Regular 2 (50)16014 Y-Pattern Socket Welding Reduced 1 (25) thru16018 Y-Pattern Buttwelding Reduced 2-1/2 (40)



Figure No. 16004, 16008, 16014 NPS 1/2 3/4 1 1-1/2 2 1 1-1/2* 2 2-1/216018 DN 15 20 25 40 50 25 40 50 65

A - End to End 5.5 5.5 6.62 8.7 10 5.5 6.62 8.7 10140 140 168 220 254 140 168 220 254



E - Center to Top 9.12 9.12 11.19 16 18.5 9.12 11.19 16 18.5232 232 284 406 470 232 284 406 470

B - Center to End 3.8 3.8 4.62 6 6.86 3.8 4.62 6 6.8697 97 117 152 174 97 117 152 174

G - Handwheel Diameter 7.12 7.12 8.5 11.5 15 7.12 8.5 11.5 15181 181 216 292 381 181 216 292 381

Weight 18 18 30 73 106 18 30 73 1068 8 14 33 48 8 14 33 48

Dimensions

*Available in buttweld only.

REDUCEDREGULAR


Edward Valves

E Nuclear Application Valves Section E

EV-1004th Edition

Edward Forged and Cast Steel Valves for Nuclear Service

E

From the beginning of commercial nuclearpower production, Edward valves havebeen used successfully in many of themost difficult applications. The Shipping-port plant went on line in 1957 with specialsize 18 Edward stainless steel tilting diskcheck valves in its primary coolant system.It also incorporated numerous smallEdward capped manual valves. Other “firstgeneration” commercial nuclear plants arestill in operation with a broad variety ofEdward forged and cast steel valves.

Through the evolution of the pressurizedwater reactor (PWR), the boiling waterreactor (BWR), and even the liquid metalfast breeder reactors (LMFBR), Edwardpeople have been involved in meeting themost difficult challenges. This experiencein engineering, manufacturing, and qualityassurance provides an excellent basis forsupplying superior valves for nuclear ser-vice in new construction, retrofit, and lifeextension work.

A major Edward nuclear niche has beenthe main steam and feedwater isolationmarket (MSIVs and MFIVs). These safetyrelated valves must close rapidly, typicallyin 3 to 5 seconds, to prevent major leak-age in the event of a pipe rupture. SpecialEdward Flite-Flow valves with air/springactuators were used in PWRs until theEdward Equiwedge gate valve and storedenergy actuator were developed in the late1970s. Edward Equiwedge MSIVs and

MFIVs with stored energy actuators arenow in service on three continents inPWRs and in steam service in an LMFBR.

Other critical nuclear applications areserved by Edward check and stop-checkvalves, some with special features. EdwardValves provides comprehensive applicationengineering data (see Technical Section) tosupport these valves, helping to avoidmany of the problems which have occurredwith other check valves in nuclear powerplants.

In addition, thousands of small Edwardforged steel valves are widely used inmany nuclear plant applications thatdemand high reliability. Some have hand-wheels, some have electric motor actua-tors, and some have pneumatic actuators,but all are designed and built to nuclearstandards. Univalves and Bolted Bonnetvalves provide excellent service in mostapplications, and Hermavalves are avail-able for applications where the risk ofexternal leakage is unacceptable.

Since there was 50 years of Edward powerplant valve experience before the firstnuclear plants were built, Edward was wellprepared for the new challenges. Now, withover 30 years of nuclear valve experience.Edward Valves is even better prepared forthe challenges of the future.

Edward Equiwedge gate valve with an Edward gas hydraulic actuator being prepared for shipment.

All Edward valves constructed for Nuclear service can be offered for Code class 1, 2 or 3.

Edward Valves • 1900 South Saunders Street, Raleigh, North Carolina 27603 • 1-800-225-6989 • 1-919-832-0525 • Fax 1-919-831-3369 E2

Edward Valves Available for Nuclear Service

E

VALVE TYPE SIZE ANSI RATINGS

Most Edward Forged and Cast Steel Valves can be supplied for nuclear service. The following chart summarizespast Edward experience by Type, Size Range and Pressure Class. Consult your Edward Valves sales representa-tive for additional information.

Bolted Bonnet 1-2 (15) Thru 2 (50) Thru Class 600

Forged Steel Valves Hermavalve 1/2 (15) Thru 2-1/2 (65) Thru Class 1690

Univalve 1/2 (15) Thru 4 (100) Thru Class 2500

Soft-seated Check Valve 1/2 (15) Thru 4 (100) Thru Class 2500

Equiwedge Gate 2-1/2 (65) Thru 28 (700) Thru Class 2500

Flite-Flow Globe

(Stop, Stop-Check & Check) 3 (80) Thru 32 (800) Thru Class 2500

Cast SteelTilting Disk 2-1/2 (65) Thru 24 (600) Thru Class 2500

Edward Globe & Angle

(Stop, Stop-Check & Check) 2-1/2 (65) Thru 24 (600) Thru Class 2500

Controlled Closure Check Valve

(see page E-14) 6 (150) Thru 24 (600) Thru Class 2500

Soft-seated Check Valve 6 (150) Thru 24 (600) Thru Class 2500

Actuators Stored energy (gas hydraulic) A-100 Thru A-330 Thrust 20,000 lbs. to over

(U stamped) 200,000 lbs.

1/4 Turn Valve Top Entry Ball Valve 1/2 (15) Thru 10 (250) 150 Thru 600

Note: See page III for indicated figure numbers available for nuclear service.

Simulated line rupture test confirms closing speedof Edward main steam isolation valve against dif-ferential pressure of 1500 psi.

All Edward valves constructed for nuclear servicecan be offered for Code Class 1, 2 or 3.


Features and Description of Edward Hermavalve

Hermetically-Sealed Valves

E

9.

8.

1.

2.

3.

4.

5.

6.

7.

10.11.

12.

13.

14.

15.

16.

17.

18.


Features and Description of Edward Hermavalve

Hermetically-Sealed Valves

1. Position indicator shows whether the valve is open or closed.

2. Handwheel is rugged and knobbed to permit sure grip even whenwearing gloves.

3. Needle thrust bearings minimize torque. Their upper yoke locationprotects from heat and allows lubrication.

4. Yoke bushing. Revolving busing of aluminum bronze material haslow coefficient of friction, substantially reduces torque, stem wear andeliminates galling.

5. Non-revolving stem is stainless steel. it is ground to a fine finishand keyed to the yoke to prevent rotation and torsional stress on thediaphragm.

6. Yoke of carbon steel is electroless nickel plated for corrosion resistance.

7. Diaphragm disk is a unique patented shape which maximizesdiaphragm life.

8. Diaphragm of multi-ply flexible metal provides a reliable primarystem seal.

9. Body with inclined stem construction and unique flow shape minimizes flow directional changes and cuts pressure drop.

10. Integral hardfaced seat of hard, heat resistant hardfacing materialis integrally welded to the body.

11. Solid Stellite disk assures maximum seating life.

12. Disk guide assembly assures disk/seat alignment. Its completelyencapsulated spring assures full disk lift.

13. Diaphragm seal weld is a unique seal weld which makes thediaphragm an integral part of the bonnet and eliminates a potentialleak path past the stem.

14. Backseat provides a secondary stem seal backup.

15. Body-bonnet seal features leak-proof seal-welded construction.The weld is for seal only; the threaded section carries the pressureload. Canopy weld in stainless steel; fillet weld in carbon steel.

16. Bonnet is barstock steel with gall-resistant ACME threads to insureeasy disassembly from body.

17. Backup packing with OS & Y design allows for inspection or addition of packing without disassembling valve.

18. Adjustable gland screws with OS & Y design allow for easyaccess to packing adjustment if necessary.

What is a Hermavalve? A Hermavalve is a hermetically sealed valvethat cannot leak to the environment. The Edward Hermavalve cannotleak because it is double seal welded:

1. The multi-ply flexible metal diaphragm is seal welded to the bonnet.

2. The body-to-bonnet joint is also seal welded.

This patented construction eliminates any potential leakage through amechanical joint. It is more than just packless, it is hermetically sealed.

Zero leakage to environment Welded, hermetic design anddependable metal diaphragm help to insure zero leakage for the life ofthe valve. In approved services the valve is warranted against leakageto the environment.

High efficiency flow-shape Unique flow shape assures high CV

comparable to or greater that conventionally packed valves provenby extensive flow testing.

Non-revolving stem design Assures lowest possible operatingtorque and is the only absolute method of avoiding diaphragm damagecaused by rotational forces from a revolving stem.

Two backup stem seals 1) Packing and 2) backseat provide backup seals.

Nuclear quality Available to ASME Section III Class 1, 2, 3.

E


Hermavalve Hermetically-Sealed ValvesASME SECTION III – Code Class 1, 2, or 3

E

NUCLEAR SERVICE GUARANTEE:Zero leakage to environment for 40 years or 4000 cycles or we replace the valve at NO COST. For detailed warranty statement, consult your Edward representative.

Standard Features• SA105 or SA182 Grade F316

body and bonnet.• Seal welded diaphragm and seal

welded body/bonnet joint.• OS & Y.• Y-Pattern.• Non-revolving stem with position

indicator.• Back-up asbestos free graphitic

packing and secondary stembackseat.

• Integral hardfaced seat.• Knobbed handwheel.

Pressure Class to 1690 (PN 290)FIG. NO. MATERIAL ENDS PORT NPS (DN)

15004 Carbon Steel Socket Welding Regular 1/2 (15) thru15008 Carbon Steel Buttwelding Regular 2 (50)15014 Carbon Steel Socket Welding Reduced 1 (25) thru15018 Carbon Steel Buttwelding Reduced 2-1/2 (40)15104 Stainless Steel Socket Welding Regular 1/2 (15) thru15108 Stainless Steel Buttwelding Regular 2 (50)15114 Stainless Steel Socket Welding Reduced 1 (25) thru15118 Stainless Steel Buttwelding Reduced 2-1/2 (40)

Bold face numerals are in inches and pounds.Purple numerals are in millimeters and kilograms.

Figure No. 15004, 15008, 15014 NPS 1/2 3/4 1 1-1/2 2 1 1-1/2* 2 2-1/215018, 15104, 15108, 15114, 15118 DN 15 20 25 40 50 25 40 50 65

A - End to End 5.5 5.5 6.62 8.7 10 5.5 6.62 8.7 10140 140 168 220 254 140 168 220 254



E - Center to Top 9.12 9.12 11.19 16 18.5 9.12 11.19 16 18.5232 232 284 406 470 232 284 406 470

B - Center to End 3.8 3.8 4.62 6 6.86 3.8 4.62 6 6.8697 97 117 152 174 97 117 152 174

G - Handwheel Diameter 7.12 7.12 8.5 11.5 15 7.12 8.5 11.5 15181 181 216 292 381 181 216 292 381

Weight 18 18 30 73 106 18 30 73 1068 8 14 33 48 8 14 33 48

Dimensions

*Available in buttweld only.

REDUCED PORTREGULAR PORT


Part Specification List for Nuclear Quality Edward Hermavalve

E

Construction and materials for nuclear valves may vary depending upon customer design specifications. For a complete, accurate, and itemized description of a particular valve, contact your Edward Valves sales representative.

Note: Cobalt free materials available for wetted parts.

DESCRIPTION ASME/ASTM NO. ASME/ASTM NO.

Body SA-105 SA-182 Grade F316

Disk A-732 Grade 21 A-732 Grade 21


Stem A-582 T-416 SA-564 T-630 Cond. H-1100

Junk Ring A-582 T-416 A-582 T-416

Bonnet SA-696 Grade C SA-479 T316

Yoke Bolt A-193 Grade B6 A-564 T-630

Packing Flexible Graphite System Flexible Graphite System

Gland A-582 T-416 A-564 T-630

Retaining Ring Nickel Plated Steel Nickel Plated Steel

Gland Adjusting Screw A-193 Grade B6 A-564 T630

Stem Guide Bushing A-696 Grade C Nickel Plated A-696 Grade C Nickel Plated

Yoke Bolt Nut A-194 Grade 6F A-194 Grade 8

Yoke A-216 Grade WCB Nickel Plated A-216 Grade WCB Nickel Plated

Yoke Bushing B-150 Alloy C61900 - C62300 B-150 Alloy C61900 - C62300

Drive Pin A-564 T630 A-564 T630

Key A-331 Grade 4140 A-331 Grade 4140

Spring Housing A-582 T-416 A-564 T-630

Diaphragm Ring SA-696 Grade C SA-479 T-316

Diaphragm Assembly B-670 Alloy 718 (Inconel) B-670 Alloy 718 (Inconel)

Diaphragm Disk A-732 Grade 21 A-732 Grade 21

Shims A-167 T-316 A-167 T-316

Disk Collar A-565 Grade 616 A-565 Grade 616

Spring Inconel X-750 Inconel X-750

Handwheel Malleable or Ductile Iron Malleable or Ductile Iron

Handwheel Nut Nickel Plated Steel Nickel Plated Steel

Indicator A-479 T-316 A-479 T-316

Thrust Bearing Steel Steel

Lube Fitting Nickel Plated Steel Nickel Plated Steel


Features and Description of Edward Univalve Globe Valves

E



3. Yoke-bonnet assembly is two piece tofacilitate disassembly for faster in-line internalrepairs.

4. Inclined stem construction and optimumflow shape minimizes flow direction changesand reduces pressure drop.



7. Handwheel on smaller size valves isrugged and knobbed to provide sure grip evenwhen wearing gloves. Impactor handle orhandwheel on larger, higher pressure valvesprovides many times the closing force of anordinary handwheel for positive seating.

8. Threaded bonnet has ACME threads forresistance to galling and ease of disassembly.Unwelded models utilize a graphitic gasket fordependable sealing. Welded models employ afillet weld (canopy weld on stainless steelvalves) for absolute protection from body-bon-net leakage.

9. Stem packing system utilizes flexiblegraphite packing material with carbon fiberanti-extrusion rings for optimum sealabilityand life.

10. Bonnet locking collar.

11. Bonnet seal ring is die formed flexiblegraphite seated to a prescribed bonnet torqueto provide reliable bonnet seal.


6.

5.

4.

7.

1.

2.

3.

9.

10.

11.

12.

8.


Part Specification List for Nuclear Quality Edward Univalve Valves


E

Parts shown are not applicable to all Univalve valves. Construction and materials for nuclear valves mayvary depending upon customer design specifications. For a complete, accurate, and itemized description of a particular valve, contact your local Edward Valves sales representative.

DESCRIPTION ASME/ASTM NO. ASME/ASTM NO.

Body SA-105 SA-182

Grade F316

Bonnet SA-696 SA-479

Grade C T-316

A-582 SA-564

Stem T-416 T-630

Condition H-1100

Disk Size 1/2−2 A-732 A-732

Grade 21 Grade 21

Disk Size 2-1/2−4 SA-182 F316 SA-182 F316

Stellite Faced Stellite Faced


Junk Ring A-732

Grade 21

Packing Rings Flexible Graphite System Flexible Graphite System

Gland A-182 A-732

Grade F6a Grade 21

Gland Adjusting Screw A-582 A-564

T-416 T-630

Yoke A-181 A-181

Class 70 Class 70

Yoke Bushing B150 C61900/62300 B150 C61900/62300

Yoke Bolt A-307 A-564

Grade A-Plated T-630

Yoke Bolt Nut A-563 A-194

Grade A-Plated Grade 8

Handwheel Malleable or Malleable or

Impactor Handle Ductile Iron Ductile Iron

Stem Nut Mild Steel Mild Steel

Plated Plated

Adapter Malleable or Malleable or

Ductile Iron Ductile Iron

Washer Mild Steel Mild Steel

Plated Plated

Bonnet Seal Ring Graphite Graphite

Locking Collar Cast Steel Cast Steel

Spring* A-313 A-313

T-302 T-302

*Check Valves only. NOTE: Cobalt free materials available for wetted parts.


SA 105 carbon steelSA 182 Grade F22SA 182 Grade F316

• Unwelded (graphitic seal) orwealed bonnet.



Edward Univalves for nuclearservice are normally furnished in

standard Class 1500 or 2500.Other interpolated pressure

classes are also available onapplication. Refer to Forged Steel

Section, pages B-15 throughB-20 for dimensions.

(Class 1690 dimensions apply to nuclear Class 1500, and Class 2680 dimensions

apply to nuclearClass 2500 valves.)

Features and Description of Edward Bolted Bonnet Globe Valves

E

1.

2.

3.

4. 6.

7.

8.

9.

5.

1. Handwheel is rugged and knobbed to pro-vide sure grip even when wearing gloves.

2. Stem has ACME threads, is grounded to afine finish and is hardened to resist wear.


4. Bolted Bonnet joint utilizes a spiral woundgasket for positive sealing and four-boltdesign for ease of assembly. Bonnet has pilotextension to insure proper alignment and pos-itive metal to metal stop to prevent over-com-pression of gasket.



7. Integral backseat provides a secondarystem seal backup for positive shutoff and leakprotection.




Part Specification List for Nuclear QualityEdward Bolted Bonnet Globe Valves

E

This is not a complete list. Construction and materials will vary between sizes and pressure classes and may be changedwithout notice. For a complete, accurate, and itemized description of a particular valve, contact your Edward Valves salesrepresentative.

Body/Bonnet SA-105

Disk* AISI 615

Stainless Steel

Body Seat Stellite 21

Stem A-582

T-416

Capscrews SA-193

Grade B-7

Gasket Spiral Wound

Non Asbestos

Packing Flexible Graphite System

Gland A-536

Grade 80 - 55 - 06

Yoke Bushing B-150 C61900 or C62300

Handwheel/Handle Malleable or

Ductile Iron

Stem Nut Mild Steel Plated

Eye Bolt A-582

T-416

Eye Bolt Nut A-194

Grade 8

Eye Bolt Pin AISI

Grade 4140

Spring** A-313

T-302

* Check and Stop-Check valve disks are A565T-616.** Check valves only.

DESCRIPTIONBOLTED BONNET

ASME/ASTM NO.

Edward Bolted Bonnet valvesfor Nuclear Service

are available in Class 600 only.Refer to Forged Steel Section,Pages B-11 through B-13 forStop, Stop-Check & PistonCheck Valve Dimensions

(Class 800 dimensions apply toNuclear Class 600 valves)


Checklist of Customer InformationRequired for Nuclear Valve Proposals

E

The following checklist is providedas a guide of important informationrequired by the valve manufacturer to accurately quoteequipment intended for nuclear ser-vice. By properly identifying thisdata a more complete and specificproposal can be provided.

• Certified Design Specifications• Nuclear Code Class• Applicable codes/standards and date of issue.• Estimated delivery requirements.• Environmental conditions - temperature, humidity, radiation, exposure to elements.• Piping diagrams.• Pipe size, material, wall thickness.• Piping forces transmitted to valve.• Piping response spectrum to Design Basis Earthquake.• Dimensional limitations of valve envelope.• Physical orientation of valve - horizontal, vertical, bonnet position.• Special materials required.• Special buttweld end requirements.• System design conditions - pressure, temperature.• Normal operating conditions - pressure, temperature.• Normal flow - pounds per hour.• Maximum flow - pounds per hour.• Allowable pressure drop through valve.• Flow direction through valve.• Valve operational requirements - emergency opening or closing, actuation time,

differential pressures and flows during operation.• Power sources - air supply pressure (maximum and minimum) voltage

supply (AC, DC), cycles, fluctuation.• Actuator type desires.


Gas-Hydraulic Actuators for Fail Safe Isolation Valves

E

Standard Features• Stored energy (pressurized

nitrogen) integrally contained.• Hydraulic speed control system

assures constant valve strokingspeed regardless of stem load.

• Fail safe operation to either closeor open valve within an adjustablerange of 3 to 10 seconds.

• Self contained control system.• All safety related functional

components are duplicated for redundancy.

• Exercise capability demonstratesoperation of all safety-relatedcomponents.

• Qualified to all applicable IEEErequirements.

• All Actuators equipped withEdward IEEE qualified AC or DCoperated hydraulic solenoidvalves.

Diagram of Edward Equiwedge gate valveand gas-hydraulic actuator assembly.

Edward gas-hydraulic actuator for large, fast-closing valves is subjected to seismic testing during rigorous qualification program to provide dependability of operation under the mostadverse conditions.

EDWARD ACTUATOR DESIGNATIONUNITS A-100 A-180 A-230 A-260 A-290 A-330

Closing Thrust lb. 21,000 63,000 90,000 130,000 160,000 205,000kN 93 293 400 578 712 912

Travel in. 6.5 12 14 17.5 20.5 24mm 165 305 356 446 521 610

Weight (Mass) lb. 720 1720 2270 2950 3940 5260kg 325 780 1030 1340 1790 2390

Extension Time sec. 3 − 10 SECONDS (ADJUSTABLE)

NOTE: VALUES TABULATED ARE “NOMINAL.” FOR SPECIAL APPLICATIONS, OTHERWISE STANDARD ACTUATORS MAY BE MODIFIED FOR SHORTEROR LONGER TRAVEL WITH CORRESPONDING EFFECTS ON WEIGHT. ENVIRONMENTAL TEMPERATURE RANGE OF THE APPLICATION WILLINFLUENCE THRUST.

Bold face numerals are in inches and pounds.Purple numerals are in millimeters and kilograms.


Controlled Closure Check Valve

E

Standard Features• Minimizes water hammer effects

on postulated feedwater linebreak.

• Computerized modeling verifiedby dynamic testing.

The Edward Controlled Closure Check Valve was developed and qualified to serve a function that no other previouscheck valve could handle. If a feedwater line should rupture in a nuclear power plant, the reversed flow from thereactor or steam generator out of the containment boundary must be contained. Conventional check valves wouldclose rapidly, but not fast enough to prevent high reverse flow velocity; closure of the conventional valve would pro-duce severe pressure surges due to water hammer possibly severe enough to produce rupture of other piping orequipment.

The Controlled Closure Check Valve is much like a Flite-Flow piston lift check valve, but it has an integral “dashpot” a plate with a close-clearance fit around the rod connecting the disk and piston. Flow paths sized for individualapplications limit the flow out of the dashpot and consequently control the valve closing speed. See pg. G-17/G-19for a discussion of water hammer and a comparison of the controlled closure check valve with other types.


Edward Valves

F Accessories/Actuators Section F

EV-1004th Edition

Accessories

F

SOCKET WELDING ENDS ONLY CLASS 600 CLASS 900 CLASS 1500 CLASS 2500 SERIES 4500

GLOBE, ANGLE, GATE

By-Passes for Larger Cast Steel Valves (See Pg. G-8)Edward by-pass valves conform to latest edition of MSS-SP45 of the ManufacturesStandardization Society of the Valve and Fittings Industry.

Unless otherwise specified when globe and angle valves are ordered with by-passattached, the by-pass is attached to the left hand side of the valve when viewedfrom the overseat end.

Edward Forged Steel Valves for use as by-passes

For use on main Globe style, By-pass Fig. A848Y* Fig. D36224 Fig. D36224 Fig. D66224 Fig. D96224stop valve

For use on main Globe style, By-pass Fig. A868Y** Fig. D36264 Fig. D36264 Fig. D66264 Fig. D96264stop-check valve

* ALL MOTOR ACTUATED BY-PASS VALVES WILL BE FURNISHED WITH FIG. D36224.** ALL MOTOR ACTUATED BY-PASS VALVES WILL BE FURNISHED WITH FIG. D36264.

Standard sizes of by-pass valves*Main valve size (all pressures) 4 5 6 8 10 to 24By-Pass size 1/2 3/4 3/4 3/4 1

* By-passes are provided only when specified. Standard sizes of by-pass valves are in accordance with the table above. Larger size by-pass valves will befurnished on special order.

Floor Stands Chain Wheels Valve Extension

Edward floor stands are cast iron or fab-ricated steel, and are designed andmachined for accurate alignment. Theyare regularly furnished painted and arefaced on bottom and drilled. Twoheights, 20 and 32 inches, are availableand can be furnished in indicating ornon-indicating types. Spur and motorcontrol floor stands can be furnished tomeet special conditions.

A simple and efficient means of valveoperation from a lower level is providedby the use of chain wheels. They are fit-ted to the regular valve handwheels andare furnished complete with chain wheeland chain guide.

Illustration shows spur geared valve withextension stem for operation from below.Valves can also be furnished for exten-sion operation above the valve. Largersize valves are also available with bevelgearing.

Edward Valves • 1900 South Saunders Street, Raleigh, North Carolina 27603 • 1-800-225-6989 • 1-919-832-0525 • Fax 1-919-831-3369 F2

Accessories – Cast and Forged Steel

F

The following “accessories” or “options” are available for Edward Forged and Cast Steel Valves. Consult your EdwardValves sales representative for specific details.

Larger size Edward Valves (except gatevalves) feature an Impactor handwheelthat permits one or two men to developseveral thousand ft. lbs. of torque forfinal valve closure up to twelve timesthe force of an ordinary handwheel.

The Edward Impactogear makes cyclingof larger, high pressure valves a oneman operation. Impactogear is an exclu-sive Edward ring gear and pinion assem-bly that is fastened to an Impactor hand-wheel and yoke. Using the mechanicaladvantage of gearing reduction, theassembly permits large valves to becycled between full open and full closedwith an air wrench operating off a nomi-nal air supply. The Impactogear wrenchconnection is equipped with a safetywrench guard.

Unless otherwise specified Edward Castand Forged (carbon or alloy) SteelValves are painted with a high tempera-ture aluminum lacquer paint. Upon spe-cial order Edward Valves can be provid-ed with customer specified paints orcoatings.

Impactor Handwheel Impactogear Custom Paint

Drain or VentAll Edward Cast Steel Valves can besupplied with drains and/or vents. Astandard drain or vent pipe, six incheslong, is socket welded to the valve body,or as specified by the customer.

External EqualizerA pipe that connects the bonnet cavity ofthe Equiwedge Gate Valve to theupstream side of the valve. See drawingand page C-10 for additional information.

Internal EqualizerA hole drilled in the upstream seat ringof the Equiwedge Gate Valve for pres-sure equalization. See drawing and pageC-10 for additional information.

Relief ValveA pressure relief valve can be attachedto the bonnet of the Equiwedge GateValve to protect against overpressuriza-tion, but not prevent pressure locking.See drawing and page C-10 for addition-al information.

Automatic Center CavityEqualizing ValveA fully automatic bonnet relief devicethat allows bi-directional seating even atlow pressure differential. See drawingand page F4 for details.

Relief valve (J) External equalizer (DD)

Flow

Internal equalizer (DDI)

Automatic Center Cavity Equalizing Valve(ACCEV)


Accessories – Cast and Forged Steel

F

Examples of a Typical Packing Leakoff (left)and Live Load Packing Gland (right)

Packing Chamber with Leakoff Typical Live Loading Arrangement

The following “accessories” or “options” are available for Edward Forged and Cast SteelValves. Consult your Edward Valves sales representative for specific details.

LeakoffThe left half of the schematic to the right depicts atypical Leakoff arrangement including lantern glandand upper and lower packing sets. This double pack-ing arrangement provides added protection againstpacking leaks.

Live LoadingThe right half of the schematic to the right depicts atypical live loaded packing assembly. The Bellevillesprings provide a constant packing load to compen-sate for packing consolidation and thermal effects.

Locking DevicesEdward Valves can be provided with padlock & chainor other locking devices as specified.

Position Indicators & Limit SwitchesIf required Edward Valves can be fitted with a varietyof position indicators and/or limit switches for remote indication.

Soft SeatsThis option is available for both Forged and CastSteel Globe and Check Valves on a limited basis. The disk face can be fitted with a soft seat or insertwhen drop tight sealing is a must. However, somelimitations (temperature, differential pressure, radia-tion) may apply. Consult your Edward Valves repre-sentative for more information.

Washout ConnectionsEdward Cast Steel Valves can be fitted with specialcovers that incorporate a pipe nipple to be used as awashout connection to introduce cleaning solutionsetc. for pipeline flushing.

Automatic Center Cavity EqualizingValve (ACCEV)The Edward ACCEV automatically relieves increasingcenter cavity pressure to the higher pressure end ofthe valve, while preventing leakage to the lower pres-sure end, solving pressure locking and bonnet over-pressurization problems which can occur in double-seated valves. The internal spring gives preferentialconnection to the designated upstream end of thevalve. When system conditions result in the down-stream pressure being higher than the upstream, theball shifts so that the center cavity connects with thedownstream end of the valve. The Edward ACCEV

meets or exceeds MSS SP-61 for tight shutoff in bothdirections. When furnished on an Edward Equiwedgegate valve, all of the necessary connections are madeto the host valve and hydro-tested in our factory. Nopiping connections or testing are required by the user.The Edward ACCEV is available as a kit with neces-sary piping to be field installed on any existingEdward or other manufacturer’s valve, and can bereadily dissassembled and repaired in-line in theevent any maintenance is required. The EdwardACCEV is available in a commercial B16.34 versionfor general service and also in an ASME Section IIIN-Stamp version for nuclear applications.


Accessories

Forged and Cast SteelEdward Valves supplies actuators for Edward forged and cast steel valves when alternate sources of power are requiredto open, close or maintain an intermediate position in the valve.

The most commonly used actuators are: electric, pneumatic, hydraulic, manual gear, or a stored energy gas hydraulicused in nuclear applications. Most Edward valves can be equipped with an actuator if required. Where specific or specialcustomer requirements are needed, Edward engineering and expertise with all types of actuators can be applied andadapted to meet the most rigid codes.

The following information on page F6 will allow Edward engineers to correctly size and select the proper motor actuatorfor your application.

F


Required Information for Motor Actuators

F

1. OPERATING PRESSURES:A) PRESSURE UNDER SEAT = _____________________________ psigB) PRESSURE OVER SEAT = ______________________________ psigC) PRESSURE DIFFERENTIAL = ___________________________ psig

2. MOTOR POWER SUPPLY*:A) AC = _______________V.,_________________ HZ.,__________________ PH. ____________________B) DC = _______________V. *STANDARD VOLTAGE VARIANCE ± 10%, IF OTHERWISE, PLEASE INDICATE

3. LIMIT SWITCH, TOTAL QUANTITY OF CONTACTS = _________________________________________________

4. DOUBLE TORQUE SWITCH IS STANDARD.

5. CONTROL POWER SUPPLY TO SWITCH COMPARTMENT = __________________________________________

6. CLOSING TIME:A) STANDARD (GLOBE VALVES APPROX. 4 IN./MIN.,

GATE VALVES APPROX. 12 IN./MIN. STEM SPEED.)B) SPECIAL_________________ INDICATE REQUIRED CLOSING TIME:____________________

7. OPTIONAL EQUIPMENT: (PLEASE INDICATE REQUIRED OPTIONS)A) MECHANICAL DIAL POSITION INDICATOR,B) EXTRA TERMINALS,C) REVERSING MOTOR CONTROLLER:__________INTEGRAL OR, ________________NON-INTEGRAL.D) PUSH-BUTTON STATION: ___________________INTEGRAL OR, ________________NON-INTEGRAL.E) POSITION TRANSMITTER, INDICATE TYPE ________________________________________________F) POSITION RECEIVER, _________________________________________________________________H) OTHERS, ___________________________________________________________________________________________________________________________________________________________________

8. AMBIENT CONDITIONS: ________________________________________________________________________

9. NEMA RATING: STANDARD IS NEMA 4 (WEATHER PROOF), IF OTHERWISE, PLEASE LIST

_______________________________________________________________________________________

10. STEM POSITION OF INSTALLED VALVE:A) VERTICAL UP-RIGHT_______________________________________B) VERTICAL UP-SIDE DOWN __________________________________C) HORIZONTAL _____________________________________________

Data in the Table at right represents theminimum information that should beprovided when ordering a valveequipped with a motor operator.


Edward Valves

G Technical Section G

EV-1004th Edition

Page No.

Table of Contents

G

1. Stop and Check Valve Application 4

1.1 Stop Valve Applications 41.1.1 Stop Valve Types and Typical Uses 41.1.2 Throttling Characteristics of Edward Valves 71.1.3 Stop Valve Actuators and Accessories 71.1.4 By-Passes and Drains 81.1.5 Stop Valve Applications Chart 9

1.2. Check Valve Applications 101.2.1 Check Valve Types and Uses 101.2.2 Check Valve Applications Chart 13

1.3 Check and Stop-Check Valve-Installation Guidelines 141.3.1 Adjacent Flow Disturbances 151.3.2 Other Problem Sources 18

1.4 Check Valve Performance 191.4.1 Check Valve Seat Tightness 191.4.2 Pressure Surge and Waterhammer 191.4.3 Check Valve Accessories and Special Features 221.4.4 Check/Stop-Check Valve Periodic Inspection

and Preventive Maintenance 22

2. Flow Performance 23

2.1 Choose the Best Valve Size for Your Service Conditions 232.1.1 Pressure Drop, Sizing and Flow Rate Calculations −

Fully Open Valves − All Types 23

2.2 Basic Calculations 23

2.2.1 Pressure Drop 242.2.2 Required Flow Coefficient 242.2.3 Flow Rate 252.2.4 Inlet Flow Velocity 25

2.3 Corrections Required with Large Pressure Drops 26

2.3.1 Gas and Steam Flow 262.3.2 Liquid Flow − Cavitation, Flashing and Choking Corrections 27

2.4 Check Valve Sizing 28

2.4.1 Sizing Parameter 282.4.2 Calculations for Check Valves Less Than Fully Open 282.4.3 Specific Sizing Guidelines 28

2.5 Pipe Reducer Coefficients 30

2.5.1 Pipe Geometry Factor 302.5.2 Other Coefficients 30

3. Edward Valve Design Standards and Features 59

3.1 Codes and Standards 593.2 Pressure Ratings 593.3 Pressure-Seal Construction 603.4 Hardfacing 613.5 Valve-Stem Packing 61

4. Miscellaneous Technical Data 62

4.1 Edward Valves Technical Publications 624.2 Sources for Additional Information 62

Equations and calculations outlined in this manual are available in a proprietary Edward Valves computer program.Consult your Edward Valves sales representative for more information.

Page No.

Edward Valves • 1900 South Saunders Street, Raleigh, North Carolina 27603 • 1-800-225-6989 • 1-919-832-0525 • Fax 1-919-831-3369 G2

Figure and Table Number Index

G

Figure 1 45° Inclined Bonnet Piston Lift Check Valves Maximum Orientation Limits G14Figure 2 90° Bonnet Piston Lift Check Valves Maximum Orientation Limits G14Figure 3 Angle Piston Lift Check Valves Maximum Orientation Limits G15Figure 4 Tilting Disk Check Valves Maximum Orientation Limits G15Figure 5 Pipe fittings near valves may produce instability because of velocity profile distortion G15Figure 6 Non-uniform velocity profile at blower or pump discharge can affect stability G15Figure 7 Elbows in two places cause swirl which can promote instability G15Figure 8 & 9 Typical flow-test setups G16Figure 10 Flow Reversal Transients G20Figure 11 Controlled Closure Check Valve (CCCV) G20Figure 12 Example: Comparison of Closure Time and Surge Pressure of

Conventional vs Controlled Closure Check Valves G21Figure 13 Reverse Flow in Conventional Swing Check Valve − Just Before Closing G21Figure 14 Maximum ∆P/p1 for use of Basic Calculations Without Correction G26Figure 15 Corrected Pressure Drop G26Figure 16 Edward Forged Steel Check Valve Flow Performance Curves G40Figure 17 Edward Cast Steel Globe Piston Check Valve Flow Performance Curves G43Figure 18 Edward Cast Steel Angle Piston Lift Check Valve Flow Performance Curves G46Figure 19 Cast Steel Flite-Flow Piston Lift Check Valve Flow Performance Curves G49Figure 20 Tilting Disk Check Valve Flow Performance Curves G52Figure 21 Ratio of Specific Heats (k) for Some Gases G56Figure 22 Saturated Water − Temperature, Pressure & Density G56Figure 23 Density of Steam G57Figure 24 Density of Air G57Figure 25 Vapor Pressure of Liquids G57

Conversion of Measurements and Units G58

Table 1 Forged Steel Univalve Flow Coefficients G31Table 2 Forged Steel Inclined Bonnet Valve Flow Coefficients G33Table 3 Forged Steel Angle Valve Flow Coefficients G34Table 4 Edward Forged Steel Vertical Stem Globe Valve & 90° Bonnet Piston

Check Valve Flow Coefficients G35Table 5 Forged Steel Ball Check Valve Flow Coefficients G36Table 6 Hydraulic Stop Valve Flow Coefficients G37Table 7 Inclined Bonnet Blow-Off Valve Flow Coefficients G37Table 8 Angle Blow-Off Valve Flow Coefficients G38Table 9 Crack-Open ∆P for Edward Forged Steel Check Valves G39Table 10 Edward Cast Steel Globe Valve Flow Coefficients G41Table 11 Edward Cast Steel Angle Valve Flow Coefficients G44Table 12 Edward Cast Steel Flite-Flow Stop & Stop-Check Valve Flow Coefficients G47Table 13 Edward Cast Steel Tilting Disk Check Valve Flow Coefficients G50Table 14 Edward Cast Steel Equiwedge Gate Valve Flow Coefficients G53Table 15 Edward Forged Steel Hermavalve Flow Coefficients G55

Page No.


1. Stop and Check Valve Applications Guide

G

1.1 Stop Valve Applications

ForewordEdward stop valves are used primarily as isolationvalves in medium and high pressure piping systems.They are offered in a broad range of sizes, pressureratings, and types, and they are used in an immensearray of diverse applications. Only a few are listed forillustration:

• Normally open valves in main steam lines; usedonly for equipment isolation, e.g. during mainte-nance.

• Normally open valves to provide for emergencyshutoff due to failure of downstream piping or otherequipment; closed periodically for verification ofoperability.

• Normally open valves that are throttled to varyingdegrees during start-up or shutdown of plants or sys-tems.

• Frequently cycled valves that are opened andclosed for control of batch processes or for start-upand shutdown of equipment (e.g., equipment that ison-stream daily but shut-down at night).

• Normally closed valves; used only for filling ordraining systems during outages.

Stop valves are sometimes referred to as “on-offvalves.” They should not normally be considered as“control valves,” but they are suitable for moderate orinfrequent flow-control functions. Valves that mustopen and close under high differential pressure andflow conditions (such as “blowdown” service) inher-ently function as flow-control devices while they arestroking.

Considering the diversity of stop valve applications, itis not surprising that there is no universal valve typethat is best for all services. Users’ experience withspecific applications is a valuable basis for selectingthe best valves.

The goal of this guide is to supplement users’ experi-ence with information based on decades of EdwardValves’ laboratory tests and field experience.

IntroductionWhile many other types of valves (ball, plug, butter-fly) are used as stop valves where service conditionspermit, emphasis in this guide is on selection andapplication of Edward valves with forged- and cast-steel bodies and bonnets. Comparisons are present-ed with other similar valves where appropriate.

Edward stop valves are typically of metal-seated con-struction and, where necessary, use gaskets and stemseals designed for severe high-pressure, high-tem-perature service. While special designs with “softseats” and O-ring seals are supplied for unique spe-cific applications, the standard products are designedto stand up to tough service conditions with mini-mum requirements for maintenance or parts replace-ment.

Edward stop valves fall into two basic categories –globe valves and gate valves. The following sec-tions of this guide will address the principal featuresof each type and the design variations within thetypes.

Globe valves are offered in stop, stop-check, andcheck versions. Stop-check valves can also be usedfor isolation in unidirectional flow applications.These valves are discussed in the Check ValvesApplications section (1.2).

The FLOW PERFORMANCE section of this catalogprovides equations and coefficients for the calcula-tion of pressure drop across any of these valves. Thisinformation can be used to evaluate the effects of dif-ferent valve sizes and types on system energy effi-ciency.

Brief notes on the advantages, disadvantages, appli-cations and limitations of the various types of Edwardstop valves are presented in the Stop ValveApplications Chart (section 1.1.4). Some additionalhighlights of the features of these valves and somecomparisons with similar valves are presented in thefollowing paragraphs.

Globe ValvesA globe valve employs a poppet or disk that opensand closes by moving linearly along the seat axis.There are many types of globe valve bodies, seats andmethods of guiding the disk to and from the seat.

• Bodies –Edward stop, stop-check and check typeglobe valves are offered with three basic body styles:

Conventional or 90°-bonnet globe valves areusually the most compact, and the stem and yokeposition allow easy handwheel or actuator access andconvenience for maintenance. Relatively short stemtravel allows fast actuation. Multiple directionchanges in the flow stream result in higher pressuredrop than with other types, but streamlined flow pas-sages in Edward valves generally yield lower pressuredrop than competitive valves of this type.

Angle valves are otherwise similar to conventional

globe valves, but the less tortuous flow path yieldslower pressure drop. Angle valves are particularlyeconomical in piping layouts where use of this con-figuration eliminates an elbow and associated flangedor welded joints.

Inclined bonnet or “Y type” valves, such asUnivalves® and Flite-Flow® valves, yield lowerpressure drop than other styles, because they permita more nearly straight-through flow path. Typically,they require a longer stem travel. In large sizes, thisbody shape is heavier and requires a greater end-to-end length than conventional globe valves.

1.1.1 Stop Valve Types andTypical Uses


1.1 Stop Valve Applications Guide (con’t.)

• Seats – Industrial globe valves are available fromvarious manufacturers with a broad variety of seatdesigns — flat or tapered, and integral or inserted(threaded or welded).

All Edward globe valves employ tapered seats with“area contact” under load to seal over minor imper-fections. Many similar valves use “line-contact” seatsthat seal with less load when new but degrade rapid-ly if damaged at the seating line.

Except for hydraulic stop valves, all Edward globevalves employ integral (hardfaced) body seats to per-mit compact design and assure that there can be noleakage “behind” the seat.

• Disk Guiding – Globe valve disks may be guidedby either the stem or the body. When opened orclosed under very high differential pressure, side loaddue to flow pushes a stem-guided disk eccentric tothe seat and makes it difficult to obtain a seal. Underextreme conditions, the stem may bend.

All Edward globe valves employ body guided diskswhich are held closely concentric with the body seat.Guiding is provided at both the top and bottom of thedisk to form a fully body-guided disk piston. The bot-tom guide ring on the disk, and Edward innovation,minimizes flow behind the disk and minimizes theside load. These features make Edward globe valveswell suited to “blowdown” applications in which thereis a high differential pressure across the valve when itis partially open.

Since globe valves are not symmetrical with respectto flow, consideration must be given to the directionof flow and differential pressure. It should be notedthat the direction of flow when open and differentialpressure when closed may not be the same in allapplications (e.g., a block valve on a feed line mayinvolve flow into a system when open but may needto prevent leakage out of the system when closed).Users should consider both factors when deciding onthe installation direction for a globe valve.

In most globe valve applications, pressure is underthe seat when the valve is closed, and the flow is fromunder to over the seat (termed “flow to open” or“underseat flow”). In installations where the down-stream pressure is zero or very low, this arrangementminimizes packing leakage problems. However,handwheel or actuator effort to close the valve is high,because the stem must supply enough load to bothovercome the differential pressure load across theseat area and ensure sufficient sealing load on themetal seat-contact surfaces. Since this flow directionis the most common for globe valves, the flow coeffi-cients given in the Flow Performance section of thiscatalog are for underseat flow.

Globe valves can also be used with overseat flow andpressure (“flow to close”), but such applicationsrequire careful consideration. In systems with dirtyline fluids, this arrangement could lead to trappingforeign material in locations where it would interferewith opening. With overseat pressure, the effort toclose the valve is low, because closure and sealingare pressure-assisted. However, the effort to open thevalve at high differential pressure is high, because thestem must overcome the pressure force to lift the disk(in small valves, the stem diameters approaching theseat diameter, this may not be a problem, because thepressure helps to lift the stem). Also, since the flowcoefficients given in this catalog are for underseatflow, pressure-drop predictions may not be as accu-rate (pressure drop may be up to 10% higher withoverseat flow).

While not designed as control valves and not recom-mended for continuous modulation, Edward globevalves are often used successfully for manual or auto-matic control during limited periods of system oper-ation (start-up, shutdown, etc.). Some manual valvesare also used for continuous throttling or “trimming.”Inclined-bonnet valves, (e.g., Univalves® and Flite-Flow® valves) have an approximately linear flowcharacteristic (CV versus % open).

The Flow Performance section of this catalog coversonly flow coefficients for fully open valves, but con-

sult Edward Valves concerning applications involvingflow control. It should be understood that severethrottling at high pressure drops involves high ener-gy dissipation, and serious problems (e.g., noise,vibration, cavitation, erosion) can develop if not care-fully considered when a system is designed.

Gate ValvesA gate valve employs a closure member (or assem-bly) that opens and closes by moving perpendicularto the flow stream to engage two seats in the body.There are two basically different types of gate valves– parallel-side and wedge gate – in common use inpressure-piping systems, but there are many varia-tions in design within each type.

As compared to glove valves, all gate valves offerstraight-through flow paths which tend to produceless pressure drop than typical globe valves of thesame nominal size. A Venturi gate valve with a small-er port than a Regular gate valve may offer a lowerfirst cost as well as a size and weight saving if a min-imized pressure drop is not required.

The Flow Performance section of this catalog givescomparable flow coefficients for Edward Equiwedge®gate valves and all Edward globe stop valves.Evaluation of many valve applications has shown thatinclined-bonnet globe valves are often competitivewith gate valves when all factors are considered.

The stem in a gate valve does not have to overcomethe full differential pressure load across the valve seatarea to open or close the valve. Instead, it just has toovercome the friction force due to that load.Consequently, for operation at similar differentialpressures, a gate valve generally requires less effortfor actuation than a globe valve and can employ asmaller actuator when powered operation is required.However, a gate valve requires considerably greaterstem travel than a conventional globe or angle valve(slightly greater than an inclined-bonnet globe valve),so a somewhat longer time may be required foraction.

The two body seats – the common feature in all ordi-nary gate valves – can be both an advantage and adisadvantage. Most gate valves are primarily “down-stream-sealing,” because the closure member ispressure-energized in that direction. However, theupstream seating surfaces may help by limiting leakage if the downstream seat is damaged.Simultaneous sealing at both seats can be hazardousif the center cavity of a closed valve is filled or par-tially filled with liquid and then subjected to anincrease in temperature, causing a correspondingincrease in pressure. In moderate cases, this maycause “pressure binding” which can impede or pre-vent valve opening; in extreme cases, it may causepressure-boundary failure (e.g., the bonnet couldblow off).

Note: ASME/ANSI B16.34-1988 (paragraph2.3.3) places the responsibility of the pur-chaser to assure that the pressure in the valvewill not exceed that allowed by the standard.Special operating procedures, such as par-tially opening a valve during warm-up, maybe considered. Special internal design fea-tures or external bypass arrangements are required in many applications. ConsultEdward Valves regarding EdwardEquiwedge® gate valve applications that maybe subject to possible center-cavity over-pressurization.

G



G

continued

Some highlights of the various types of gate valves,including the Edward Equiwedge, are discussedbelow:

• Parallel-Slide Gate ValvesEdward does not offer parallel-slide valves. In thesevalves, the two seats in the body are in parallelplanes, and an assembly including two gates withparallel seating faces moves into or out of engage-ment with the body seats. The gates are urged intocontact with the opposing seats in the closed positionby either a spring (or a set of springs) or an internalwedge mechanism.

Since the two gates are relatively independent, thedownstream gate is free to align with the downstreamseat, and new valves usually seal well so long as thedifferential pressure across the valve is sufficient toprovide adequate seating load. Leakage may be aproblem with these valves at low differential pres-sures (e.g. when filling a system or during low-pres-sure start-up operation).

In typical parallel-slide valves, there is continuoussliding contact between the sealing surfaces of thegates and body seats throughout the full stem stroke.Wearing or scoring is possible, particularly when

operating with high differential pressures, and thismay cause seat sealing to be degraded. This shearingaction may be helpful in cleaning loose debris fromthe seats, however.

• Wedge Gate ValvesA wedge gate valve uses one of the oldest engineer-ing principles to provide mechanical advantage toconvert stem load to seat-sealing load. This is partic-ularly important in low-pressure applications wheredifferential pressure alone may not provide sufficientloading on the downstream seat.

Early wedge gate valves forlow pressure employed solidwedges, and these are stillused in many small high-pressure gate valves.However, as industrial valverequirements moved towardlarger sizes and higher pres-sures and temperatures, asolid wedge designed to pro-vide sufficient strengthbecame too rigid to accom-modate the flexibility of thevalve body. The seat planesdeflect significantly in large,high-pressure valve bodiesdue to thermal effects and theloads from connecting pip-ing, and a rigid wedge may

either leak or bind in the closed position.

Many gate valves have been designed with “flexible”one-piece wedges that have overcome these prob-lems to some degree, but the two halves of the wedgeare not truly independent and free to align with thetwo opposing body seats. It is particularly difficult toprovide torsional flexibility in the wedge to accom-modate twist in the valve body.

Consequently, the Edward Equiwedge valve wasdesigned with two independent, flexible wedge halvesthat permit relative rotation and can tilt to accommo-

date changes in the body-seat angles. The thicknessof the wedges was minimized, while maintainingacceptable stresses, to allow deflection to accommo-date out-of-flatness in the seat plane. In prototypetests, acceptable sealing was maintained with seatsintentionally misaligned 1° in angle and up to 2° inrotation.

The result is a valve that has high-pressure sealingperformance comparable to that of a parallel-slidevalve but that can also seal exceptionally well at lowdifferential pressures. The independent, flexiblewedge halves in Edward Equiwedge gate valves alsohave commendable resistance to sticking or bindingin the closed position. In prototype tests, the valvealways opened with a torque less than the designclosing torque when exposed to extreme pipe-bend-ing moments and severe thermal transients (heat-upand cool-down).

All wedge gate valves have body guides that mustsupport the wedges when they are not in the fullyclosed position. The seating surfaces of the wedgesand seats are in sliding contact only through a smallportion of the opening and closing travel, thus mini-mizing wear that may degrade seat sealing. Outsidethat range, the side loads are transferred from theseats to the body guides. Wear or scoring of the bodyguides does not affect sealing.

In Edward Equiwedge gate valves, the body guidesare vertical machined grooves at each side of thevalve body which engage tongues on each side of thewedge halves. Precision machining allows transfer ofside load from the seats to the body guides within 3%to 5% of valve travel. Testing has proven that thisguiding system is rugged and supports the gate

assembly effectively, even in“blowdown” services where highdifferential pressure loads actacross the gates when the valveis partially open.

Gate valves of any type areusually not recommended forthrottling or modulating flow-control service. The seatingsurfaces of the gates are subjectto impingement when partiallyopen, and some gate valvesreportedly exhibit instability(internal vibration) when throttled.Nevertheless, high-velocity flowtests of a prototype Edward

Equiwedge gate valve produced no flow-inducedvibration, and there are cases where these valves havebeen used successfully for limited flow-control func-tions. Consult Edward Valves concerning any pro-posed throttling or control applications.



As noted in the previous section, Edward stop valvesare not normally recommended for continuous mod-ulation, and Edward Valves should be consulted con-cerning applications involving flow control. This sec-tion is intended only to provide general guidelines onflow-control characteristics of typical Edward stopvalves. These guidelines may be used for preliminarystudies relating to applications involving throttling,but they should not be considered as a substitute fora complete evaluation of the acceptability of a valvefor a critical application.

Figure A provides typical inherent flow-charac-teristic curves (percent of full-open flow coefficientversus percent opening) of the most common types ofEdward stop valves. It should be understood thatthese curves are approximate, because there are vari-ations due to size and pressure class that cannot berepresented accurately by a single curve for eachvalve type. Nevertheless, these typical curves canprovide some guidance relating to control capabilitiesof the various valve types.

Note the following subtle differences between thecurves in Figure A:

• The conventional 90°-bonnet globe valve providesa relatively steep slope at small openings approach-ing a “quick-opening” characteristic. While the body-guided disk in Edward globe valves moderates thiseffect, it makes the flow coefficient very sensitive tosmall changes in stem position, so it may prove diffi-cult to control low flow rates.

• The angle valve has a characteristic similar to thatof a globe valve, but it is slightly closer to linear dueto its normally higher full-open flow coefficient. Anangle valve has about the same control characteristicsas a globe valve of the same size at small openings.

• The cast-steel Flite-Flow® Y-type valve provides acharacteristic that is nearly linear over most of itsstem-travel range. For control of flow over a broadrange, the high flow efficiency of this type of valvemay permit use of a smaller valve size for a givenallowable pressure drop. The smaller size, combinedwith the linear characteristic, can give improved con-trol of low flow rates when the valve is throttled.

• The forged-steel Y-type Univalve® provides evenbetter control at very small openings because of its“double throttling” characteristic as the lower disk-guide ring opens the machined port in the body. Otherforged-steel valves have this characteristic to somedegree.

• The Equiwedge‚ gate valve has an excellent inher-ent flow characteristic (“concave upward”), approach-ing that of an equal-percentage control valve.However, this is somewhat misleading. Wheninstalled in pipe of the same nominal size as thevalve, the pressure drop of a gate valve is so low atlarge openings (e.g., over 70%) that piping flowresistance usually overshadows that of the valve. Thegate valve would provide little control over flow in thatrange.

While not normally recommended for throttling forthe reasons cited in the previous section, the gatevalve flow-characteristic curve is attractive from astandpoint of controlling low flow rates withoutexcessive sensitivity. Use of a gate valve for throttlingmay be considered for some applications.

Most Edward stop and stop-check valves illustratedin this catalog are shown with handwheels, and themajority of valves are furnished for applicationswhere manual actuation is acceptable. Most largerand higher-pressure globe valves are furnished withstandard Impactor handles or handwheels, whichprovide up to twelve times the stem force of an ordi-nary handwheel, to provide for adequate seatingthrust. Impactogear assemblies on the largest globevalves permit operation using an air wrench. TheseEdward innovations permit practical manual opera-tion of many valves that would otherwise requiregearing or power actuators.

Manual Gear ActuatorsWhen specified, many Edward valves can be suppliedwith manual actuators with gear reduction in lieu of ahandwheel. Such actuators reduce the required rim-pull effort and often permit operation by one person incases where several people would be required to seatthe valve with a handwheel. While manual gear actu-ators slow down operation, they are often an attractiveoption for valves that are not operated frequently.

Operating pressure and differential pressure shouldbe specified.

Note: Users sometimes specify that valvesbe operable at maximum differential pressurewith very low rim-pull forces. This mayrequire selection of gearing that may causetwo problems: (1) literally thousands ofhandwheel turns for full-stroke valve opera-tion and/or (2) capability to damage the valveeasily with rim-pull forces that are readilyapplied by many operating personnel.Manual gear actuators with high ratios pro-vide relatively little “feel” to the operator, andit is difficult to tell when a valve is fully openor closed. Good judgment should be exer-cised in specifying practical rim-pull forcerequirements.

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1.1.3 Stop Valve Actuators andAccessories

1.1.2 Throttling Characteristics ofEdward Stop Valves

Figure AInherent FlowCharacteristics

1 - Conventional 90° bonnet globe valve2 - Angle valve3 - Flite-Flow4 - Univalve5 - Equiwedge Gate valve



Power ActuatorsWhere valves are inaccessible for manual operationor where relatively fast opening or closing is required,most Edward valves can be furnished with poweractuators. The most commonly used actuators areelectric actuators with torque- and position-controlfeatures. Users frequently have individual preferenceson actuator brand names and type, so Edward valvesare furnished with Limitorque, Rotork, Auma or otheractuators to satisfy customer requirements.

Edward Valves establishes actuator sizes and switchsetting based on specific valve-application require-ments, using a computer program that matches thevalve and actuator operating characteristics to theservice-pressure conditions. Unlike most valve man-ufacturers, Edward Valves makes this selection–notthe actuator manufacturer–since we best know therequirements of our valve. However, we must alsoknow the requirements of your application. As a min-imum, requests for quotation should specify:

• Operating pressures – under-and over-seat anddifferential

• Maximum valve operating temperature

• Ambient conditions – temperature, humidity,radiation

• Motor power supply – AC voltage, frequency, andphase or DC voltage (including variance)

• NEMA rating

• Closing/opening time – if important. If not speci-fied, standard nominal stem speed will be 4 inch-es/minute (100 mm/min) for globe valves and 12inches/min (305 mm/min) for gate valves.

• Valve-stem plane – vertical (stem up or down) orhorizontal

• Special accessories – position indicator, etc.

Any other special requirements should be clearlyspecified. If there are non-standard manual-overriderequirements, see the note above relative to rim-pullforces for manual gear actuators.

Stored-Energy ActuatorsFor critical service applications, special balancedFlite-Flow® valves and Equiwedge® gate valves arefurnished with Edward stored-energy actuators thatwere developed and qualified to meet demandingnuclear power-plant requirements. These linear actu-ators are commonly installed on Main SteamIsolation Valves and Main Feedwater Isolation Valves

(MSIV and MFIV) that must be adjustable to close in3 to 10 seconds in the event of a line break.

The Edward actuator completed exhaustive qualifica-tion testing under elevated temperatures, radiation,seismic loadings and other conditions that realistical-ly simulated the most severe operating conditionsencountered in actual service. In addition, extensivequalification testing was done on an Equiwedge MSIVin combination with an Edward actuator, and over 160of these combinations are installed in nuclear plantson three continents.

The Edward actuator employs compressed gas-thestored energy of closure of the valve-in a compact,essentially spherical reservoir atop the piston of thevalve-actuating cylinder. This integral constructioneliminates reliance on external gas-storage tanks orinterconnecting piping to connect the stored-energygas to the power cylinder. Hydraulic fluid is pumpedinto the cylinder below the piston to open the valve,and regulated release of the fluid to a reservoir pro-vides essential closing-speed control.

When specified, larger Edward cast-steel valves arefurnished with valved by-passes and drains in accor-dance with ASME-ANSI B16.34 and MSS SP-45.Cast-steel stop valves employ forged-steel Edwardglobe stop valves, and cast-steel stop-check valvesuse forged steel Edward stop-check valves as by-passvalves. Sizes and by-pass valve figure numbers are asshown on page F-2.

Drain valves for all main valves are the same as theby-pass valves listed for stop valves. When drains arespecified without valves, the standard drain for class300 and 600 valves is a NPT tapped hole in the valvebody, fitted with a pipe plug. For class 900 and high-er-pressure valves, the standard drain is a pipe nip-ple, six inches (152 mm) long, socket-welded to thevalve body.

Drain sizes are the same as by-passes. By-passvalves are particularly useful when opened before themain valve to permit controlled warming of the valveand downstream line in services involving steam orother hot fluids. By-passes also can be used to par-tially or fully balance the differential pressure acrossthe main valve before opening where the downstreamline or system is of limited volume. This facilitatesopening of a gate valve or a glove valve with overseatpressure.

Large-volume systems may require larger by-passesfor balancing in a reasonable time. If this is the case,a special by-pass size should be specified by the pur-chaser. It should be noted that actuated EdwardEquiwedge gate valves do not require by-passes topermit opening if the full differential pressure is spec-ified for actuator sizing. See page F-2 for tables ofstandard sizes and pressure classes for most applica-tions.

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General schematic of stored energy gas-hydraulic actuator.

1.1.4 By-Passes and Drains



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1.1.5 Stop Valve Application Chart

TYPE ADVANTAGES DISADVANTAGES APPLICATIONS LIMITATIONS

Globe90° Bonnet

Angle

GlobeInclinedBonnet

EquiwedgeGate

• Compact

• Easy access toHandwheel orActuator

• Fast response

• Same as Globe

• Replaces an Elbow

• Lower pressure dropthan Globe

• Lower pressure dropthan Globe or Angle

• May permit smallersize than Globe

• Lowest pressure drop

• Lowest torque

• May permit smallestsize

• High pressure drop

• High torque

• Heavy in large sizes

• High torque

• Heavy in large sizes

• Same as Angle

• Longest end-to-endlength

• Handwheel orActuator on an Angle

• Long stem travelslows response

• Not recommended for throttling

• Long stem travelslows response withmanual actuation

• Class 300 − 2500steam & water

• Other gasses and liquids

• Usable for throttling

• Same as Globe

• Class 600 − 4500 thru size 4

• Class 300 − 2500 thru size 24

• Otherwise, same asGlobe

• Class 600 − 2500steam & water

• Other gasses and liquids

• Main steam isolation

• Not for stem-downinstallations

• Sizes 1/4 thru 24

• Same as Globe

• Same as Globe

• Possibility of pressure binding

• Sizes 2-1/2 thru 32


1.2 Check Valve Applications Guide

Check valves are used in fluid circuits in applicationssimilar to those in which diodes are used in electricalcircuits. Reduced to simplest terms, the duty of mostcheck valves is to allow flow in one direction and toprevent flow in the reverse direction. The ideal checkwould have zero resistance to flow in the normal flowdirection and infinite resistance to flow (leakage) inthe reverse direction. Of course, the ideal check valveshould also be perfectly reliable and should requireno maintenance.

There are many different types of check valves, andmost do their duty well, giving long, trouble-free ser-vice. However, in the real world, no single type ofcheck valve achieves the ideal performance character-istics users sometimes expect. In a very few cases,mismatching of check valves to the needs of fluid cir-cuits has produced serious problems (noise, vibra-tion, severe pressure surges and check-element fail-ures with attendant gross leakage and consequentialdamage to other equipment). While it is not necessaryfor every application to be ideal, knowledge of thecharacteristics of each type of check valve shouldhelp system designers and valve users to select thebest type and size intelligently. This knowledgeshould also help in assuring that serious problemsare avoided.

Most check valves seen deceptively simple, with onlyone moving part-a poppet or flapper that appearscapable of allowing flow in only one direction.However, this single mechanical part cannot beexpected to take the place of a sophisticated controlsystem that senses flow (direction, quantity, rate ofchange) and provides output to (1) open the valvefully when flow is in one direction and yet (2) closethe valve to prevent flow and leakage in the reversedirection. Each type of check valve has features thatenable it to perform one or more of its duties well, buteach type also has weaknesses. The relative impor-tance of these strengths and weaknesses is highlydependent on the requirements of individual applica-tions.

The goal of this guide is to provide application engi-neers and users with practical advice on check valveselection and sizing, location in piping systems, pre-ventive maintenance and repairs. Emphasis will be onEdward products, but comparisons will be providedin some cases with other types of check valves.

This guide is based on extensive testing of Edwardcheck valves in sizes from NPS 1/2 through 18 aswell as a reasonable sampling of other types. Sincecomplete performance testing of every valve type, sizeand pressure class is not practical, predictions of theperformance of some valves are based on mathemat-ical models. However, the models are based on sub-stantial test data and are believed to be reasonablyaccurate or conservative. The laboratory test filescover over forty years. Perhaps even more important,the files include feedback from substantial field expe-rience-in fossil and nuclear-fueled power plants,refineries, chemical plants, oil fields and in countlessother applications. It is hoped that this test and fieldexperience will help others avoid problems and pit-falls in the application and use of check valves.

IntroductionThis guide has been prepared to aid fluid-systemdesigners in sizing and selecting check valves forindustrial and power-piping systems. Guidance isalso provided on valve orientation (inclination fromhorizontal, etc.) and on location of check valves withrespect to other flow disturbances. In addition, thisguide should aid users in planning preventive main-tenance programs, performing maintenance andrepairs when necessary, and in evaluating and cor-recting problems.

Emphasis in this guide is on selection and applicationof forged- and cast-steel Edward products, but com-parisons with other types of check valves are givenwhere this can be done based on valid information.

The Flow Performance section of this catalog pro-vides equations and coefficients for the calculation ofpressure drop and the flow required to assure fullvalve opening. In addition, that section provides mostof the necessary supplemental data required for rou-tine calculations, such as water and steam density.

This guide also provides caution notes relative to sys-tem-related problems to be avoided (such as pipingvibration, flow instability, waterhammer). Some ofthese guidelines are qualitative and could involve fur-ther analysis. However, attention to these notesshould help to avoid problems.

Finally, this guide addresses check valve mainte-nance. History indicates that preventive maintenanceof check valves is often neglected, and this can leadto serious valve failures which may damage otherequipment. The guidelines provided on periodicinspection and preventive maintenance should pay offin terms of reduced overall plant maintenance andrepair costs.

While other types are sometimes encountered inpower hydraulics and other specialized applications,four basic types of check valves are commonly usedin industrial and power piping applications.

1- Lift Check ValvesThe closure element is a poppet or disk that is liftedopen by flow and which seats, usually on a matingconical surface in the valve body, under no-flowconditions.

2-Ball Check ValvesA lift check valve in which the closure element is aball.

3-Swing Check ValvesThe closure element is a pivoted flapper which isswung open by flow and which seats, generallyagainst a mating flat surface in the valve body, underno-flow conditions.

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1.2.1 Check Valve Types andTypical Uses

Foreword


1.2 Check Valve Applications Guide (con’t.)

4-Tilting-Disk Check ValveThe closure element is a pivoted disk or flapper,somewhat like that in a swing check valve but with apivot axis close to the center of the flow stream. It isswung open by flow and seats against a mating con-ical surface in the valve body under no-flow condi-tions.

There are many variations among these four basictypes of check valves. For example, springs may beincluded to assist closure and counteract gravitation-al forces, and accessories may be provided for exer-cising or position indication. All Edward lift checkvalves employ body-guided disks with a piston-likeextension to provide good guidance and resistance towear. Accordingly, they are referred to in this guide aspiston-lift check valves. In addition, Edward manufac-turers stop-check valves which are piston-lift checkvalves that allow positive closure for isolation, justlike globe stop valves.

Illustrations of the valve types manufactured byEdward are provided in this catalog, and brief noteson advantages, disadvantages, applications, and lim-itations are provided in the Check Valve ApplicationsChart (section 1.2.2). Some further highlights of thefeatures of these valves are provided in the followingparagraphs.

Edward Piston-Lift Check ValvesIn both small forged-steel and large cast-steel Edwardlines, three distinctly different valve body stylesappear in the illustrations – inclined-bonnet globevalve style, angle valve style, and 90°-bonnet globevalve style.

With respect to check valve function, these valves areall similar, with only slightly different orientation lim-its as discussed in the Valve-Installation Guidelinessection (1.3). The main difference between these sys-tems is in flow performance:

• Inclined-bonnet piston-lift check valves producelow pressure drop due to flow when fully open. Theyhave flow coefficients comparable to those of tilting-disk check valves and only slightly lower than pro-vided by many swing check valves.

• In most cases, angle piston-lift check valves havelower flow coefficients and thus produce more pres-sure drop than inclined-bonnet valves, but they aresuperior to 90°-bonnet valves. Where a piping sys-tem requires a bend and a valve, use of an angle pis-ton-lift check valve eliminates the cost and pressuredrop of an elbow and the cost of associated pipingwelds or flanged connections.

• 90°-bonnet piston-lift check valves have the lowestflow coefficients and produce pressure drops compa-rable to 90°-bonnet globe valves. They are some-times preferred in systems where pressure drop is notcritical or where space requirements dictate a mini-mum size and easy access to a handwheel or actuator(on a stop-check valve).

Piston-lift check valves are generally the most practi-cal type for small sizes, and they generally provide thebest seat tightness. Small forged-steel piston-liftcheck valves normally include a disk-return spring,but may be ordered without springs. The FlowPerformance section of this catalog and section 1.3below address such valves, both with and withoutsprings. Cast-steel piston-lift check valves haveequalizer tubes which connect the volume above thepiston with a relatively low-pressure region near thevalve outlet. This feature allows a much larger valveopening (and higher flow coefficient) than would bepossible otherwise, and it allows the valve to openfully at a relatively low flow.

The body-guided feature of Edward piston-lift checkvalves is an advantage in most services, because itassures good alignment of the disk with the valve seatand minimizes lateral vibration and wear. However,this feature may lead to sticking problems due to for-eign-material entrapment in unusually dirty systems.Another inherent characteristic is that large piston-liftcheck valves may not respond rapidly to flow rever-sals and may cause water-hammer problems in sys-tems where the flow reverses quickly [see thePressure Surge and Waterhammer section (1.4.2)].Since smaller valves display inherently fasterresponse, historic files have shown no water-hammerproblems with small forged-steel check valves.

Edward Stop-Check ValvesStop-check valves offer the same tight sealing perfor-mance as a globe stop valve and at the same time givepiston-lift check valve protection in the event of back-flow. A stop-check valve is nearly identical to a stopvalve, but the valve stem is not connected to the disk.When the stem is in the “open” position, the disk isfree to open and close in response to flow, just as ina piston-lift check valve. When serving as a checkvalve, stop-check valves display the same advantagesand disadvantages as discussed above for piston-liftcheck valves. Small forged-steel stop-check valves,except the Univalve® stop-check valves, employ adisk-return spring, and cast-steel stop-check valveshave equalizer tubes that function in the same manneras those on comparable piston-lift check valves.

The stem in the stop-check valve may be driven eitherby a handwheel or an actuator, and it may be usedeither to (1) prevent flow in the normal direction whennecessary for isolation or (2) supplement line pres-sure to enhance seat tightness in applications withpressure from the downstream side. Some usersautomate stop-check valves to give extra system pro-tection against reverse flow and leakage. For example,an actuator may be signaled to close the valve when apump is shut off; the disk closes quickly by normalcheck valve action, and the stem follows to seat thevalve firmly a short time later.

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1.2 Check Valve Applications Edward (con’t.)

Edward Ball Check ValvesBall check valves are offered only in small forged-steel configurations (size 2 and smaller) withinclined-bonnet bodies and ball-return springs.These valves are recommended over piston checkvalves, for service with viscous fluids or where thereis scale or sediment in the system. The bolted-bonnetversions offer flow performance that is generally sim-ilar to that of equivalent piston-lift check valves, andthey are the preferred ball check valves for mostindustrial and power-piping applications.

The threaded-bonnet hydraulic ball check valves areused primarily in very high pressure, low-flow appli-cations with viscous fluids. They have lower flowcoefficients that have proven acceptable for those ser-vices. These valves sometimes exhibit chattering ten-dencies when handling water, so they are not recom-mended for low-viscosity fluids.

A unique feature of the ball check valve is that the ballclosure element is free to rotate during operation,allowing the ball and seat to wear relatively evenly.This feature, combined with the standard returnspring, helps to promote positive seating even withheavy, viscous fluids.

Edward Tilting-Disk Check ValvesTilting-disk check valves are particularly well-suitedto applications where rapid response and freedomfrom sticking are essential. Fully open valves of thistype also exhibit low pressure drop. They have flowcoefficients comparable to those of Edward inclined-bonnet piston-lift (Flite-Flow®) check valves andonly slightly lower than provided by many swingcheck valves.

Tilting-disk check valves provide rapid response,because the center of mass of the disk is close to thepivot axis. Just as in a pendulum, this characteristicpromotes rapid motion of the disk toward its natural(closed) position whenever the force holding it openis removed. This response can be valuable in appli-cations where relatively rapid flow reversals mayoccur, such as in pump-discharge service where mul-tiple pumps discharge into a common manifold. Insuch cases, the flow may reverse quickly, and therapid response of the tilting-disk check valve mini-mizes the magnitude of the reverse velocity and theresulting waterhammer pressure surge. This charac-teristic also minimizes impact stresses on the diskand body seats. However, an extremely rapid flowreversal, as might be produced by an upstream piperupture, could cause a problem. See the PressureSurge and Water Hammer section (1.4.2) for furtherdiscussion.

Size-6 and larger tilting-disk check valves have totally enclosed torsion springs in their hinge pins tohelp initiate the closing motion, but the disk is coun-terweighted to fully close without the springs. Withthe free pivoting action of the disk, this type of valveis highly immune to sticking due to debris in the system.

Tilting-disk check valve are superficially similar toswing check valves in that both operate on a pivoting-disk principle. However, the pivot axis in a swingcheck valve is much farther from the disk’s center ofmass, and this increases the “pendulum period” andhence the time required for closure in services withflow reversal. In addition, the one-piece disk in thetilting-disk check valve avoids the necessity of inter-nal fasteners and locking devices, which are requiredto secure disks to pivot arms in most swing checkvalves. However, like swing check valves, tilting-diskcheck valves have hinge pins and bearings that aresubject to wear due to disk flutter if the valve is notfully open and/or there are flow disturbances or insta-bilities. Such wear may product eccentricity of thedisk and seat when the valve closes, leading to adegradation of seat tightness (particularly at low dif-

ferential pressures). Applications involving severelyunstable flow or prolonged service without preventivemaintenance can lead to failures in which the diskseparates completely from the hinge pins and will notclose. Other sections of this guide address the flowconditions which may lead to problems as well asmaintenance recommendations.

Edward Elbow-Down Check and Stop-Check ValvesElbow-down piston-lift check and stop-check valvesare similar to Flite-Flow valves except that the valveoutlet is in the form of an elbow to direct the flowdownward. These valves were designed specificallyfor applications in controlled-circulation powerplants, and they have special clearances and otherdesign features. Because of these special features, thesizing and pressure-drop calculation methods givenin the Flow Performance section of this catalog do notapply. However, special elbow-down valves can befurnished with conventional check valve design fea-tures for applications where this valve-body geometryis desirable.

Edward Combinations of Check andStop-Check ValvesAs noted in the Foreword to this section (1.2), no sin-gle type of check valve achieves ideal performancecharacteristics. The advantages and disadvantagesnoted in the Check Valve Applications Chart (section1.2.2) and other information in this catalog shouldassist in selection of the best valve size and type forany specific application. However, the selection of anysingle valve may require undesirable compromises.

Some system designers and users specify two checkvalves in series for critical applications, and this doesgive some insurance that at least one valve will closeeven if the other valve fails. However, if two identicalvalves are used, a system characteristic that is trou-blesome to one valve could produce problems withboth. In such cases, use of two valves does not assuredouble safety or double life. Sometimes it is worthconsidering the selection of two different types ofcheck valve, each with advantages to offset disadvan-tages of the other.

One specific check valve combination has been usedin applications of Edward valves to provide advan-tages that no single valve can offer. A tilting-diskcheck valve in series with a piston-lift check valveoffers minimum waterhammer and freedom fromsticking (from the tilting-disk) and good seat tight-ness (from the piston-lift check). The disadvantage isadded pressure drop and cost, but the pressure-droppenalty is minor if the Flite-Flow inclined-bonnet pis-ton-lift check valve is used. Even the cost penalty maybe offset if a stop-check valve is used, because it maybe able to take the place of a stop valve that would berequired otherwise for isolation.G


1.2.2 Check Valve Applications Chart

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TYPE ADVANTAGES DISADVANTAGES APPLICATIONS LIMITATIONS

Piston Lift Check

Ball Check

Tilting Disk Check

Stop-Check

• Very low pressure drop in inclinedbonnet valves.

• Relatively low pressure drop in angle valves.

• Larger valves incorporate an external equalizer.

• Minimum chatter due to flow disturbances.

• Good seat tightness.• Forged steel valves with spring

can be mounted in any orientation.

• Wear on body seat and check element evenly distributed.

• Long service life.• Forged steel valves with spring

can be mounted in any orientation.• Available with either integral or

threaded seat for hydraulic valve.• Low cost.

• Very low pressure drop.• Straight through body design.• Very fast closing.• Minimizes disk slamming and water-

hammer pressure surges.

• Will not “stick” in dirty systems.

• See Piston Lift Check above.• Can be used for Stop valve service.• Stem can be lowered onto disk to

prevent chatter at low flow.• Stem force can overcome “sticking.”

• Relatively high pressure drop in 90°bonnet valves.

• Subject to “sticking” in very dirty sys-tems.

• High pressure drop.• Available only in small sizes.

• Not recommended for service with rapidly fluctuating flow.

• Seat tightness may deteriorate atlowdifferential pressure.

• See Piston Lift Check valve above.

• Class 300−4500 service.

• High temperature steam and water.• Refining, petrochemical, chemical,

etc.• Oilfield production.• Can be used in series with Tilting

Disk Check to provide maximum line protection (advantages of bothtypes).

• Class 600 and Series 1500 service.• Water, steam, refining, petro-

chemical, chemical, etc.• Service where scale and sediment

exist.• Viscous fluids.

• Class 600−4500 service.

• High temperature steam and water.• Refining, petrochemical, chemical,

etc.• Oilfield production.• Can be used in series with Piston

Lift Check or Stop-Check to provide maximum line protection (advantages of both types).

• See Piston Lift Check above.

• Sizes 1/4 thru 24.• For orientation limits see

VALVE INSTALLATION GUIDELINES.

• For flow limits see FlowPerformance section of this catalog.

• Sizes 1/4 thru 2.• For orientation limits see


• Not recommended for gas service at low flow rates.


• Sizes 2-1/2 thru 24.• For orientation limits see



• See Piston Lift Check above.


1.3 Check and Stop-Check Valve Installation Guidelines

Unlike stop valves, which can be installed in any posi-tion with little or no effect on performance, most checkand stop-check valves have limitations as to theirinstalled orientation. Although the normal installationis in a horizontal or vertical line (depending on valvetype), check and stop-check valves can be installed inother orientations. It should be noted, however, thatvalves installed in other than the normal positions mayexhibit a degradation of performance, service life andresistance to sticking, depending on the flow condi-tions and cleanliness of the line fluid. For maximumreliability, it is recommended that piston-lift checkvalves and stop-check valves be installed with flowaxis horizontal (vertical inlet and horizontal outlet forangle valves) with the bonnet above the valve in a ver-tical plane. Following are maximum out-of-positionorientations that may be used for less critical applica-tions and which should never be exceeded.

• All Edward forged-steel check and stop-check valves(except Univalve® stop-check valves) are normallyfurnished with spring-loaded disks and may beinstalled in any position. The spring-loaded diskenables positive closure regardless of valve position.However, installed positions in which dirt or scale canaccumulate in the valve neck should be avoided. Anexample of this would be an inclined-bonnet valveinstalled in a vertical pipeline with downward flow. Ifforged-steel valves are ordered without springs, thelimitations below should be observed.

• Edward cast-steel Flite-Flow®, forged-steel Uni-valve, and inclined-bonnet check and stop-checkvalves without springs, when installed in vertical ornear vertical lines, should be oriented such that thefluid flow is upward and the angle of incline of the lineis not more than 5° past the vertical in the direction ofthe bonnet. When installed in horizontal or near hori-zontal lines, the valve bonnet should be up and theangle of incline of the line should be not more than 5°below the horizontal. See Figure 1A. Also, the rollangle of the valve bonnet should not be more than 20°from side to side for either vertical or horizontal instal-lations. See Figures 1B and 1C. Consult your EdwardValves representative concerning installation limits ofbolted-bonnet forged-steel check valves withoutsprings.

• Edward cast-steel and forge-steel 90°-bonnet checkand stop-check valves without springs should beinstalled with the bonnet up, and the angle of incline ofthe line should not be more than 45° form the hori-zontal. Also, the roll angle of the valve bonnet shouldnot be more than 45° from side to side. See Figures 2Aand 2B.

• Edward cast-steel and forged-steel angle check andstop-check valves without springs should be orientedsuch that the incoming flow is upward, and the angleof incline of the line should not be more than 45° ineither direction. See Figure 3A and 3B.

• Edward tilting-disk check valves may be installed inhorizontal lines and vertical lines and at any inclineangle in between. When the incline angle is not hori-zontal, flow should always be up. The roll angle of thevalve should not be more than 30° from side to side.See Figures 4A and 4B. Also, when installed in otherthan vertical lines, the bonnet should always be orient-ed up.

In each case described above, the limitations given forline inclination and bonnet roll angle should not becombined.

It should be understood that the information given inthe section of this catalog entitled Flow Performance isbased on traditional horizontal orientations. For otherorientations, the pressure drop and flow required forfull lift may be affected. In addition, seat tightness, par-ticularly at low differential pressures, may be adverse-ly affected.

Orientation restrictions may also exist for power-actu-ated stop-check valves. Most linear valve actuators aredesigned to be mounted upright and nearly vertical,although they can usually be modified for mounting inany position. When selecting a stop-check valve andpower actuator, be sure to specify the mounting posi-tion desired if not vertical and upright.

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Figure 290° Bonnet Piston Lift Check ValvesMaximum Valve Orientation Limits

Figure 1 45° Inclined Bonnet Piston Lift Check Valves

Maximum Check Valve Orientation Limits

Note: For piston lift check valves, any installation resulting in combined out of position orientation, such asa valve in an inclined line with a rollover angle as well, should limit the angle of the bonnet to the following:

• 45° from vertical for angle and 90°bonnet valves.• 50° from vertical for inclined bonnet valves.


1.3 Check and Stop-Check Valve Installation Guidelines (con’t.)

Check valves, like other valve types, are generallytested for performance and flow capacity in long,straight-pipe runs. Flow coefficients obtained fromthese tests are then used to predict the flow rate orpressure drop that will be experienced in actual appli-cations. The ideal installation of a check valve in aplant would be in a long run of straight pipe so thatperformance would correspond to the test conditions.Since space limitations involved with many installa-tions preclude such ideal straight-pipe runs, theeffects of adjacent pipe fittings, control valves,pumps and other flow disturbances must be consid-ered.

Previously published data have indicated that flowdisturbances, particularly upstream disturbances,may significantly affect check valve performance. Ithas been reported that valve flow capacity may besignificantly reduced as compared to that measuredin straight-pipe tests, and there have been strongsuggestions that such disturbances aggravate checkvalve flutter and vibration. Since these conditionscould degrade valve performance and contribute torapid wear and premature valve failure, they areimportant factors in evaluating check valve applica-tions. Figure 5 illustrates how upstream pipe fittingsmay alter the flow profile entering a check valve,crowding it to one side or the other. A similar distor-tion occurs in a valve located near the discharge of acentrifugal pump or blower, as shown in Figure 6.Elbows in two planes cause a flow stream to swirl,which might produce unusual effects on a checkvalve installed as shown in Figure 7.

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Figure 3Angle Piston Lift Check ValvesOrientation Limits

Figure 4Tilting Disk Check Valves Orientation Limits

1.3.1 Adjacent Flow Disturbances

Figure 5 Pipe fittings near valves may produceinstability because of velocity profile distortion

Figure 6Non-uniform velocity profile at blower orpump discharge can affect stability.

Figure 7Elbows in two places cause swirl which can promote instability.



Since there was no known way to predict the effects offlow disturbances on check valves by mathematicalmodels, Edward conducted extensive testing of size 2,4, 8 and 10 check valves in straight-pipe runs and inpiping with upstream flow disturbances. Figures 8and 9 illustrate typical flow-test setups.

In most tests, room temperature water was the flowmedium, but limited straight-pipe testing was per-formed with air. The valves tested included Edwardpiston-lift check (inclined-bonnet, angle and 90°-bonnet), tilting-disk check valves and a size-4 swingcheck valve manufactured by another company. Thetests were designed to evaluate the effects of flow dis-turbances on (1) valve stability, particularly when par-tially open; (2) flow rate required to open the valvefully; and (3) the flow coefficient (CV) of the valve. Theflow disturbances evaluated included single and dou-ble (out of plane) 90° elbows in various orientationsimmediately upstream of the check valves. In addi-tion, the effects of a throttled, upstream control valvewere simulated with an offset-disk butterfly valve (atvarious throttle positions) mounted immediatelyupstream, as well as at five and eleven pipe diametersupstream, of the check valves.

With few exceptions, tests with 10 or more diametersof straight pipe upstream of check valves producedlittle cause for concern. In water flow tests, visualposition indicators usually showed only minor disk“wobble” or very small open-close flutter (e.g. lessthan 1° total rotation of a tilting disk), even at very lowflows and small valve openings. The only conditionsthat produced severe instability were those involvingair flow at very low pressures (below 50 psi or 3.4bar) and valve openings less than 20%. Such condi-tions produced significant cyclic motion, with disksbouncing on and off the body seats. In view or themany uncertainties in applying laboratory test resultsto service conditions, it is considered prudent toavoid operating conditions which produce checkvalve openings of less than 25%, even in idealstraight-pipe applications.

Highlights of the results of the Edward tests with flowdisturbances are given in Table A on page G17. Thetest program clearly showed that upstream flow dis-turbances do affect check valve performance, but theeffect is not always predictable. The magnitude of theeffect can vary, depending on the type and even thesize of the valve. In some cases, even the direction ofthe effect (improvement or degradation) varies from

valve to valve. Nevertheless, some general observa-tions on the results of these tests are:

• Single and double upstream elbows produced lesssevere effects on check valve performance than hadbeen expected, and some valves displayed no dis-cernible effects. For example, Edward angle piston-liftcheck valves exhibited the same stability, lift and flowcoefficients (CV) with upstream elbows as withstraight pipe. In tests of other types of valves,upstream elbows produced both beneficial andadverse effect to various degrees.

• In each case where a check valve was tested with athrottled butterfly valve immediately upstream, therewere significant effects on performance. The effectsincluded increased disk flutter and reduced valveopening at a given flow, as compared to straight-pipeperformance. In some cases, full check valve openingcould not be achieved at any flow within the capabil-ities of the test loop.

Even where full opening was obtained, some valvescontinued to flutter on and off their stops. Theseeffects were worst when the butterfly valve was mostseverely throttled (smallest opening and highestpressure drop). In the worst cases, the butterfly valveexhibited audible cavitation, but it is not clear whetherthe adverse effects resulted from simple flow distor-tion or the two-phase flow stream from the cavitatingbutterfly valve.

In similar tests with the butterfly valve moved 5 diam-eters upstream of the check valve (but with similarthrottling), the adverse performance effects weredecreased significantly but not eliminated. When thebutterfly valve was moved 11 diameters upstream ofthe check valve, normal check valve performance wasrestored.

The results of these tests were enlightening, but theymust be combined with observations based on fieldexperience. For example, while upstream elbows pro-duced less severe effects than expected, there werestill adverse effects on some valves. It is difficult to

extrapolate a laboratory test to years of service in aplant installation, but Edward se vice files include aninteresting and relevant incident. Two size-12 tilting-disk check valves in one plant had hinge-pin failuresover a time period of several months after 25 years ofservice. While this incident might best be cited as acase for more inspection and preventive maintenance,the details of the installation were investigated. It wasdetermined that the flow rates were in a range thatshould have assured full disk opening, but the valveswere installed close to upstream elbows.

Users of this catalog may wish to refer to EPRI ReportNo. NP 5479 (see the Sources for AdditionalInformation section of this catalog) for further data onthe performance of swing check valves in tests simi-lar to those conducted by Edward. The size-4 swingcheck valve used in the Edward test program had astop positioned to restrict the disk-opening angle toabout 38°. This valve opened fully at a relatively lowflow and exhibited reasonably stable performance.The tests sponsored by EPRI showed that other swingcheck valves (with less restrictive stops) exhibitedlarger amplitudes of flutter than were observed incomparable Edward tests.

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Figure 9Size 10 Class 1500 Flite-Flow® inclined bonnet pis-ton lift check valve with two upstream elbows. Testloop capacity permitted tests with line velocity over20 ft./sec. (6 m/sec.).


Figure 8Size 4 Class 600 90° bonnet piston lift check valvewith two upstream elbows (out of plane). Thisarrangement produces swirl as shown in Figure 7.


The following guidelines are based on Edward testsand field experience, combined with other publishedinformation:

• If possible, check valves near flow disturbancesshould be sized to be fully open, preferably by a goodmargin, even at the lowest sustained flow rate antici-pated for each application. The Flow Performancesection of this catalog provides methods for sizingEdward check valves for new installations or for eval-uating existing applications. When flow-inducedforces load a valve closure element firmly against astop, it is less likely to flutter and suffer from rapidwear.

Full opening does not guarantee freedom from prob-lems if the margin is not sufficient to provide a firmload against the stop. Equalizers on Edward cast-steelpiston-lift check and stop-check valves enhance thismargin and provide good stop loading, but flow dis-turbances may cause other valve disks to bounce onand off their stops. This “tapping” phenomenon maycause faster wear than flutter about a partially openposition. For this reason, the minimum sustainedflow rate through a tilting-disk check valve near flowdisturbances should be about 20% greater than theflow rate required to just achieve full opening.

If it is not possible to assure full opening of a checkvalve at minimum flow conditions, at least 25%opening should be assured. Valves operating at par-tial opening for significant periods of time should bemonitored regularly to determine if there is instability or wear.

• In view of uncertainties associated with long-termeffects of flow disturbances, it is recommended that aminimum of 10 diameters of straight pipe be provid-ed between the inlet of a check valve and anyupstream flow disturbance (fittings, pumps, controlvalves, etc.), particularly if calculations indicate thatthe check valve will not be fully open for a substantialportion of the valve service life. There should be aminimum of 1 to 2 diameters of pipe between thecheck valve and the nearest downstream flow distur-bance.

• In the specific case of upstream elbows, reasonablysuccessful performance should be attainable with 5diameters of straight pipe between an upstream elbowand a check valve if the valve will not be partially openfor a significant portion of its service life. Testsdescribed in EPRI Report No. NP 5479 indicate thatelbows installed 5 diameters or more upstream had anegligible effect on swing check valves, and this isexpected to be true for other check valve types. Evenless straight pipe may be satisfactory, but such closespacing should be reserved for applications with verytight space constraints. More frequent inspection andpreventive maintenance should be planned for valvesin such installations.

• In the specific case of throttled upstream controlvalves, the minimum requirement of 10 upstreampipe diameters should be adhered to rigidly. Calcula-tions indicating full valve opening based on straight-pipe tests cannot be trusted to prevent problems,because severe flow disturbances may prevent fullopening. Even greater lengths of straight pipe shouldbe considered if the control valve operates with veryhigh pressure drop or significant cavitation.

• Users with existing check valve installations that donot meet these guidelines should plan more frequentinspection and preventive maintenance for suchvalves. If a check valve is installed close to anupstream control valve that operates with a high pres-sure drop, considerations should be given to achange in piping or valve arrangements.

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Table A - Effects of Upstream Flow Disturbances on Check Valve Performance

DOUBLE ELBOWS THROTTLED BUTTERFLY VALVEVALVE SINGLE ELBOW1 (OUT OF PLANE)SIZE & TYPE AT VALVE INLET AT VALVE INLET AT VALVE INLET 5 DIAM. UPSTREAM 11 DIAM. UPSTREAM

1Tests were conducted with single 90° elbows in the horizontal plane and in the vertical plane (with flow both from above and below).2One size-2 valve exhibited flutter at lower lifts; another was stable.

Size 2, Inclined-Bonnet Higher Lift for Same Flow; Higher Lift for Same Flow NA NA NAPiston-Lift Check Disk Flutter at Lower Lifts2

Size 4, Angle No Effect No Effect NA NA NAPiston-Lift Check

Size 4, 90°-Bonnet Same, Lower or Higher Disk Flutter and Chatter:Piston-Lift Check Flow for Full Lift No Effect Failure to Achieve NA NA

Full Open

Size 4, Swing Check Smaller Opening for Same Smaller Opening for Same Larger Opening for Same NA NAFlow Flow Flow; Disk Flutter

Size 8, Angle No Effect NA NA NA NAPiston-Lift Check

Size 8, 90°-Bonnet Disk Flutter at Partial Lift NA NA NA NAPiston-Lift Check

Size 10, Inclined-Bonnet Same or Lower Lift for Failure to Achieve Failure to AchievePiston-Lift Check Same Flow; Slight Disk No Effect Full Open; Full Open No Effect

Wobble Disk Flutter and Chatter

Same, Lower or Higher LiftSize 10, Tilting-Disk Check No Effect Minor Flutter for Same Flow; Minor Flutter No Effect

Disk Flutter and Chatter



In addition to the fundamentals of check valve selec-tion, sizing and installation, several other potentialsources of check valve problems should be consid-ered in applications engineering or, if necessary, insolving problems with existing installations:

• Piping-System VibrationIn other sections of this guide, it has been noted thatcheck valve damage or performance problems mayresult from flow-induced flutter or vibration of the clo-sure element. Very similar damage may result frompiping-system vibration. Such vibration may origi-nate at pumps, cavitating control valves or otherequipment. Check and stop-check valves are suscep-tible to vibration damage, because the check elementis “free floating” when partially open, with only theforces due to fluid flow to balance the moving weight.Impact damage and internal wear may result if thevalve body vibrates while internal parts attempt toremain stationary. This condition may be avoided byadequately supporting the piping system near thecheck valve or by damping vibration at its source. Ofcourse, it is helpful to assure that the check elementopens fully, because flow forces at the disk-stop helpto inhibit relative motion.

• Debris in Line FluidDebris in the flow stream can cause damage and per-formance problems in check and stop-check valves.Debris entrapped between the disk and seat may pre-vent full closure and lead directly to seat leakage. Ifhard particles or chips are in the debris, they maydamage the seating surfaces and contribute to seatleakage even after they are flushed away. Debriscaught between the disk and the body bore of a pis-ton-lift check valve can cause the disk to jam and pre-vent full opening or closing. To insure best checkvalve performance and seat tightness, line fluidsshould be kept as clean as practical. As noted before,tilting-disk check valves are particularly resistant tosticking or jamming, but they are no more resistant toseat damage than other types.

• Unsteady (Pulsating) FlowAn unsteady flow rate can lead to rapid check valvedamage, particularly if the minimum flow during acycle is not sufficient to hold the valve fully open. Thevalve may be damaged just because it does what acheck valve is designed to do – open and close inresponse to changes in flow. As an example, a checkvalve installed too close to the outlet of a positive dis-placement pump may attempt to respond to the dis-charge of each cylinder. If the mean flow during acycle is low, the disk may bounce off the seat repeat-edly in a chattering action. If the mean flow is higher,the disk may bounce on and off the full-open stop.Such pulsating flows may be difficult to predict. Forexample, a steam leak past the seat of an upstreamstop valve may produce a “percolating” action in aline filled with condensate and cause a check valve tocycle. Such problems may only be discovered by pre-ventive maintenance inspections.

• Vapor Pockets in Liquid PipingSystems

Unusual phenomena are sometimes observed in pip-ing systems containing hot water that partially vapor-izes downstream of a closed check valve. Vapor pock-ets at high points may collapse suddenly when thecheck valve opens (due to the start-up of a pump, forexample). This collapse may be remote from thecheck valve and have no effect on the check valve per-formance. However, if a vapor pocket exists in theupper part of a piston-lift check or stop-check valvebody (above the disk), the collapse may generateunbalanced forces in the direction of disk opening.Since the vapor offers little fluid resistance, rapidacceleration of the disk toward the fully open positionmay occur. In extreme cases, the disk or bonnet stopsmay be damaged due to impact. Such thermodynam-ic quirks are difficult to anticipate when designing apiping system and are sometimes as difficult to diag-nose if they occur in an existing installation. Changesin piping arrangements or operating procedures maybe necessary if severe problems occur. It is possiblethat similar problems may occur during low-pressurestart-up operations in unvented liquid-piping sys-tems.

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1.3.2 Other Problem Sources


1.4 Check Valve Performance

Edward check valves are factory-tested with water inaccordance with MSS SP-61 (ManufacturersStandardization Society of the Valve and FittingsIndustry, Inc.) at an overseat pressure of 1.1 times thepressure ratings of the valve. While check valves areallowed leakage rates up to 40 ml/hr per unit of nom-inal valve size by MSS SP-61, Edward allows nomore than 5% of this leakage for cast-steel valves andno visible leakage for forged-steel valves. Tilting-diskand forged-steel check valves are then tested again ata reduced pressure with allowable leakage rateswhich are less than the MSS SP-61 requirements.

Closed check valve closure elements (disk, ball, flap-per, etc.) are acted on by a combination of forces pro-duced by gravity, springs (where applicable) andreversed differential pressure. While gravity andspring forces help to position the closure element intothe substantially closed position, metal-to-metalseating check valves typically rely on pressure forcesto produce the seating loads necessary for good seattightness.

Some metal-seated check valves do not producegood seat tightness at low differential pressures, par-ticularly when the pressure increases from zero. Athreshold level of differential pressure is required toproduce uniform metal-to metal contact and restrictleakage to a reasonable rate. An even higher level isrequired to assure that a valve meets leakage-rate cri-teria like those in MSS SP-61. Unfortunately, theselevels of differential pressure are difficult to predict;they vary with valve type, condition and orientation(and with cleanliness of line fluid).

Tests of new valves in horizontal lines show that cast-steel inclined-bonnet and 90°-bonnet piston-liftcheck and tilting-disk check valves seal off reason-ably well at under 50 psi (3.4 bar) when differentialpressure increases from zero. Small forged-steel balland piston-lift check valves are less consistent,sometimes seating at less than 50 psi (3.4 bar) andsometimes requiring 250 psi (17 bar) or more. This

“seating” action often occurs suddenly when thepressure forces shift the closure element into goodmetal-to metal contact with the body seat, and leak-age generally continues to decrease as the pressure isincreased. Once seated, most valves seal well if pres-sure is reduced below the threshold required for ini-tial seating, but the seat tightness with reducing pres-sure is also difficult to predict.

Some of the Edward check valves described in thiscatalog have been manufactured with “soft seats” toprovide improved seat tightness at low differentialpressures. This design feature includes an elastomer-ic or plastic sealing member on the valve closure ele-ment to supplement the basic metal-to-metal seatingfunction. Since the design and material selection forthese sealing members are very sensitive to pressure,temperature and compatibility with the line fluid, thereare no standard, general-purpose, soft-seated valves.Consult Edward Valves for further information aboutspecific applications.

Foreign material in the flow medium is a major sourceof leakage problems in many valves. Because of thelimited seating forces in check valves, dirt has a fargreater effect on the tightness of these valves thanother types. Attention to cleanliness of the fluid isnecessary where good check valve seat tightness isdesired.

Incorrect sizing or misapplication of a check valvecan also lead to leakage problems. Chattering of theclosure element on its seat due to insufficient flow orpressure can cause damage to the seat or closureelement and result in leakage.

In applications where check valve leakage is a prob-lem, a stop-check valve may offer the solution. Stemload from a handwheel or actuator can provide thenecessary seating force independent of pressure. Ofcourse, the stem must be returned to the “open” posi-tion to allow flow in the normal direction. ConsultEdward Valves about applications that are usuallysensitive to leakage.

A complete treatment of the subject of pressure surgeand waterhammer is beyond the scope of this catalog,but some discussion is provided so that applicationengineers may appreciate the significance of theproblem as it relates to check valves.

One part of the problem is that the terminology or jar-gon is not consistently used. For example, “water-hammer” or “steam hammer” is sometimes used todescribe the implosion which occurs when waterenters a hot, low pressure region and causes a steamvoid to collapse. This has occurred in systems with afailed check valve, where the water came back from alarge reverse flow through the check valve. However,the more common “waterhammer” problem associat-ed with check valves occurs as a result of the checkvalve closing and suddenly terminating a significantreversed flow velocity. This problem is generallyassociated with valves handling water or other liq-uids. A similar pressure surge phenomenon may beencountered with steam or gas, but it is generallymuch less serious with a compressible flow medium.

Waterhammer is a pressure surge produced by thedeceleration of a liquid column, and it involves pres-sure waves that travel at close to the velocity of soundthrough the fluid. It is commonly illustrated in textsby an example involving rapid closure or a valve in along pipe. For such a case, it can be shown thatinstantaneous closure of a valve in a room-tempera-ture water line will produce an increase in pressure ofabout 50 psi (3.4 bar) above the steady-state pressurefor every 1 ft/sec (0.30 m/sec) decrease in watervelocity. Even if the valve does not close instanta-neously, the same pressure increase would develop ifthe upstream pipe is long enough to prevent reflectedpressure waves from reaching the valve before it clos-es. The waves of increasing pressure that are gener-ated by the closing valve “reflect” from a constant-pressure reservoir or vessel, if present in the system,and return to the valve as inverted waves thatdecrease pressure. A solution to the “textbook prob-

lem” is to slow down the valve closure so that thereflected pressure waves attenuate the surge.However, this is not necessarily the best approach inthe case of a check valve.

In a check valve, the fluid velocity is forward beforethe valve starts to close, but it reduces due to somesystem action (e.g., a pump is shut off). If the veloci-ty reverses before the valve closes, a waterhammersurge will be produced by a conventional check valvethat is nearly proportional to the magnitude of themaximum reversed velocity. Figure 10 providescurves illustrating flow transients associated with dif-ferent types of systems and flow interruptions. Thegraphs illustrate velocity in the pipe, forward andreverse, versus time on arbitrary scales. The followingdiscussions describe each of the curves:

• Curve A illustrates flow coast-down in a simplecirculating loop, such as a cooling system, followingswitch-off of pump power. The momentum of thepump impeller and the fluid keeps the fluid going for-ward until it is decelerated and finally stopped by fric-tion. There would be no need for a check valve to pre-vent reverse flow in this system, but one might beincluded to permit pump maintenance without drain-ing other equipment. In normal operation of this system, the check valve could produce no water-hammer.

• Curve B illustrates an application with a pumpfeeding a high-pressure system with a fairly large vol-ume. It might represent a boiler feed system of apump feeding a high reservoir. In this case, assumingsimilar momentum in the pump and fluid, forwardflow continues for a while after the pump is switchedoff, but the downstream pressure decelerates the flowmore rapidly and then reverses its direction. Withouta check valve, the reverse flow would increase andstabilize at some value, unless the downstream sys-tem pressure declined. In the illustration, the magni-tude of the maximum reverse velocity is drawn lessthan the initial forward velocity, but it might be high-er in some systems.

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1.4.1 Check Valve Seat Tightness 1.4.2 Pressure Surge andWaterhammer


1.4 Check Valve Performance (con’t.)

• Curve C illustrates what would happen in the sys-

tem described for Curve B with a fast-response checkvalve (e.g., a tilting-disk type) installed. As discussedin the Foreword to this guide, an “ideal” check valvewould allow no reverse flow and would close exactlyat the time the velocity curve passes through zero;there would be no waterhammer. A “real” check valvestarts closing while the flow is still forward, but it lagsthe velocity curve. With fast response, it closes beforea high reverse velocity develops, thus minimizing thewaterhammer surge.

• Curve D illustrates the same system with a checkvalve that responds just a bit slower. It shows that justa small increase in check valve lag may allow a largeincrease in reverse velocity (and a correspondingincrease in waterhammer surge pressure).

• Curve E illustrates an accidental situation thatmight develop with a severely worn valve or a dirtysystem. If a check valve in the system describedabove should stick open, it might allow the reversevelocity to build up so as to approach that whichwould occur without a check valve. If the reverse flowforces should then overcome the forces that causedthe sticking, the resulting valve stem could cause adamaging waterhammer surge.

• Curve F illustrates what might happen in the sys-tem described for Curve B if there were a major piperupture just upstream of the check valve. With freedischarge through the open end, the flow woulddecelerate much more rapidly and, without a checkvalve, reach a much higher reverse velocity.

• Curve G shows the response of the system inCurve F if even a fast-response conventional checkvalve were to be used. With a flow deceleration thisrapid, even a small lag may result in a very highreverse velocity to be arrested and a correspondinglyhigh waterhammer surge.

Fortunately, it is not necessary to design every pipingsystem with a check valve to cope with a pipe rupture.However, this requirement has emerged in somepower-plant feedwater piping systems. Edward analy-ses and tests have shown that even the most rapid-responding conventional check valve could produce

unacceptable waterhammersurges. This led to the develop-ment of the special controlled-clo-sure check valve (CCCV–see Figure 11). Since highreverse velocities are inevitable, the CCCV solves theproblem the way the “textbook problem” discussedabove is solved–by closing slowly. The CCCV is apiston-lift check valve, but it has an internal dashpotwhich slows the closing speed of the valve. Closingspeed depends on the rate at which water is squeezedout of the dashpot chamber, through flow paths thatare sized for each application.

• Curve H illustrates the velocity variation in thepipe-rupture situation described for Curve F, but witha CCCV in the line. In this case, the maximum reversevelocity might even be higher than in Curve G, but itis decelerated back to zero slowly, allowing reflectedreducing-pressure waves to minimize the resultingwaterhammer surge. Figure 12 provides a compari-son between a conventional check valve and a CCCVfor a specific pipe-rupture situation. Note that theconventional check valve closes in 0.07 seconds ascompared to 1.0 seconds for CCCV. As a result, theconventional check valve produced a surge of 3000psi (207 bar) while the CCCV limits the surge to 600psi (41 bar). These characteristics have been demon-strated in tests and can be duplicated in computer-based dynamic analysis simulations of specificvalves and systems.

While the CCCV solves a special problem, even thissophisticated product does not fulfill the definition ofan ideal check valve. By closing slowly, it allows sig-nificant reverse blow before it seats. This characteris-tic might be undesirable in common pump-dischargeapplications, because the reverse flow might haveadverse effects on pumps or other equipment. Studiesof systems designs sometimes show that fast-response check valves, such as the tilting-disk type,should be retained at pump discharge points wherean upstream pipe rupture is unlikely, with CCCVsapplied at locations where an upstream pipe rupturecould cause serious consequences (e.g., in feedwaterlines inside the containment vessel of a nuclearpower plant).

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Figure 10 - Flow Reversal Description of CurvesA - Pump Trip in Circulating Loop with or without Check ValveB - Pump Trip in Boiler Feed Line - No Check ValveC - Same as B but with Fast Response Check ValveD - Same as B but with Slow Response Check ValveE - Same as C or D but Check Valve Sticks then Unsticks and Slams ClosedF - Upstream Feed Line Rupture - No Check ValveG - Same as F but with Fast Response Check ValveH - Same as F but with Controlled Closure Check Valve

Note: In liquid flow lines, sudden velocity changes as at C, D, E and Gproduce pressure surges proportional to velocity change.

Figure 11 - Controlled Closure Check Valve (CCCV)

Dashpot Chamber

normalflow

direction

Edward Valve Company • 1900 South Saunders Street, Raleigh, North Carolina 27603 • 1-800-225-6989 • 1-919-832-0525 • Fax 1-919-831-3369 G20


In Curves C, D, E, and G of Figure 10, it may be notedthat the final terminations of reverse velocity areshown as substantially vertical lines. This does notimply that the valve closes instantaneously. However,tests of conventional check valves show that thereverse velocity in the pipe containing the valve doesterminate almost instantaneously. This apparent con-tradiction may be understood by referring to Figure13, which illustrates a check valve approaching theclosed position with reverse flow (while the illustra-tion depicts a swing check valve, the flow conditiondiscussed here would be much the same with a pop-pet or disk in a conventional lift check or piston-liftcheck valve).

The key observation from Figure 13 is that a columnof fluid follows the closure element at roughly thesame velocity that the closure element has as itapproaches its seating surface in the valve body.While the valve may start to close while the flowvelocity is still forward (see Figure 10), an undampedcheck valve has little effect on pipe flow during clo-sure, and the disk velocity is about the same as thereverse flow velocity in the pipe at the instant justbefore closure. Since the disk is stopped substantial-ly instantaneously when it makes metal-to-metal con-tact with the body seat, the reverse flow velocity in thepipe must also be arrested instantaneously. Becauseof this characteristic, the surge produced by the slamof a conventional check valve cannot be attenuatedsignificantly by reflected reducing-pressure waves,and the surge tends to be relatively insensitive to sys-tem pipe lengths.

In some check valve applications, problems havebeen observed due to a phenomenon that is related towaterhammer but not as widely recognized. When ahigh-pressure wave is produced on the downstreamside of a check valve at closure, a reverse low-pres-sure wave is produced on the upstream side. If thislow-pressure wave reduces the fluid pressure tobelow the saturation pressure of the fluid, a vaporpocket can form. This can be compared to a tensilefailure of the flow stream, and it is sometimes referred

to as column separation or column rupture. Thisvapor pocket is unstable and will collapse quickly,with an implosion that produces a high-pressure“spike.” It is possible for this pressure surge toexceed the one initially produced on the downstreamof the check valve. Instrumented laboratory tests haveshown that the upstream pressure spike sometimescauses the disk to reopen slightly and “bounce” off itsseat once or twice. In very rare occasions, sometimesinvolving systems with multiple check valves, thischaracteristic has been known to amplify, leading todamaging pipe vibrations.

In summary, waterhammer can produce complexproblems in check valve applications. Numericalsolutions to these problems require sophisticatedcomputer-based dynamic analyses of both the checkvalve and the fluid in the piping system. This catalogdoes not provide the methods for making such analy-ses; instead, the information in this section is intend-ed to assist fluid-system designers in avoiding theproblem.

Users who already have check valves in liquid flowlines that emit loud “slams” when they close shouldbe aware that the noise is probably associated withpressure surges that could lead to fatigue problems inthe valve, piping or other components. Where theexisting check valve is a piston-lift check or stop-check valve, the solution could be to add a tilting-diskcheck valve in series with the existing check valve togain the advantages of both valve types. Where theexisting valve is a swing check valve, replacement bya tilting-disk check valve might be considered. Seethe section of this catalog entitled Check Valve Typesand Typical Uses (1.2.1) for a discussion of thestrengths and weaknesses of the various valve types.

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Figure 12Example Comparison of Closure Time and Surge Pressure

Conventional vs Controlled Closure Check Valves

Figure 13Reverse Flow in Conventional Swing Check Valve - Just Before Closing



Edward Check valves can be provided with variousaccessories which are used to induce check-elementmotion (exercise) or indicate check-element position.Some of the features available are as follows:

• Visual disk-position indicator for tilting-diskcheck valve

• Electrical open/close position indicator for tilting-disk or cast-steel piston-lift check valve

• Manual or pneumatic actuator to partially open tilt-ing-disk check valve under zero differential pres-sure

• CCCVs can be furnished with an injection portwhich allows the valve disk to be exercised byinjecting water into the dashpot chamber when thevalve is under a zero differential pressure.

Periodic inspection and preventive maintenance ofcheck and stop-check valves should be performed toinsure that the valves are operating properly. Bonnet-joint leakage and packing leakage on stop-checkvalves are easy to detect. Seat leakage of a check orstop-check valve might be indicated by one of the fol-lowing: a definite pressure loss on the high-pressureside of the valve; continued flow through an inspec-tion drain on the low-pressure side; or, in hot water orsteam lines, a downstream pipe that remains hotbeyond the usual length of time after valve closure.Leakage of steam through a valve which is badlysteam-cut has a whistling or sonorous sound. If thevalve is only slightly steam-cut, however, leakage isidentified by subdued gurgling or weak poppingsounds. These sounds can often be heard through astethoscope.

Excessive vibration, noise or humming coming fromwithin a piston-lift check or stop-check valve indi-cates the possibility that the disk-piston assembly iswedged inside the body. Such sticking may be causedby uneven body-guide rib wear on the downstreamside. Sticking rarely occurs with tilting-disk checkvalves.

“Tapping,” “thumping” or “rattling” noises detectedfrom or near a check valve may indicate disk instabil-ity or cavitation. Instability could lead to rapid wearand possible valve failure. Audible cavitation is alsodetrimental. It may produce damage to the valve or thedownstream piping. While the noise symptoms may betransmitted through the pipe from other equipment,prompt investigation is required if the check valve’sperformance is critical to plant reliability.

No specific inspection/preventive maintenanceschedule can be given to cover all check valves. It issuggested that small valves be sampled by size andtype (there may be hundreds in a large installation).Schedules for audit of larger valves should considerthe criticality of the valve service. It is wise to opensome critical valves for internal inspection at intervalseven if no suspicious noises are detected.

Where check valves are installed close to pumps,control valves, pipe fittings or other flow distur-bances, they should have more frequent inspection[see the section of this catalog entitled Adjacent FlowDisturbances (1.3.1)]. In addition, attention should begiven to valves in installations with significant pipevibration.

Users of this guide may wish to consider non-intru-sive check valve monitoring methods as a supple-ment to periodic visual inspection and measurementof check valve internals. Noise and vibration, acousticemission, ultrasonic and radiographic methods havebeen studied and demonstrated. EPRI Report No. NP5479 provides an evaluation of the state of the art, butusers are advised to obtain the most current informa-tion available on these emerging technologies.

If problems are found through any of the inspectionsdiscussed above, refer to section J: Maintenance.

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1.4.3 Check Valve Accessories andSpecial Features

1.4.4 Check/Stop-Check ValvePeriodic Inspection andPreventive Maintenance


2. Flow Performance

The most economical valve is the valve correctlysized for the service flow conditions. Too small avalve will have a high pressure drop and will incurexpensive energy costs in service. Too large a valvewastes money at the time of purchase, and it mayrequire excessive effort or an excessively large andexpensive actuator for operation.

Piping-system designers sometimes optimize the sizeof valves and piping systems to minimize the sum ofinvestment costs and the present value of pumpingpower costs. While this may not be practical forselection of every valve, it is a goal that should bekept in mind. This catalog provides information nec-essary to evaluate the various types and sizes ofEdward valves for stop (isolation), stop-check andcheck valve applications.

In the case of stop-check and check valves, anotherconsideration is that an oversized valve may not opencompletely. Obviously, if a valve is not fully open, thepressure drop will be increased. Also, if the diskoperates too close to the seat, unsteady flow maycause flutter that may damage valve seats, disks orguides.

System designers should also address “turndown” ifservice conditions involve a broad range of flow rates(e.g., high flow in normal operation but low flow dur-ing start-up and standby conditions). For these rea-sons, selection of check valves requires extra stepsand care in calculations.

This section includes equations for the calculation ofpressure drop, required flow coefficient, flow rate orinlet flow velocity. Procedures are also provided tocheck and correct for cavitation and flow choking. Theequations in this section assume that the fluid is a liq-

uid, a gas or steam. Two-component flow (e.g. slur-ries, oil-gas mixtures) is not covered by the equa-tions. Consult Edward Valves for assistance in evalu-ating such applications.

Tables in this section contain performance data for allEdward stop, stop-check and check valves. Flowcoefficients and cavitation/choked-flow coefficientsare given for all fully open Edward valves. In addition,for check and stop-check valves, the tables provideminimum pressure drop for full lift, crack-open pres-sure drop, and a novel “sizing parameter” that is help-ful in selecting the proper valve size for each applica-tion.

Caution: Pressure drop, flow rate and checkvalve lift estimates provided by Edward calcu-lation methods are “best estimate” valves.Calculations are based on standard equationsof the Instrument Society of America (ISA),flow rate and fluid data provided by the user,and valve flow coefficients provided byEdward Valves.

Flow rate and fluid data are often design orbest-estimate values. Actual values may differfrom original estimates. Flow and check valvelift coefficients are based on laboratory test-ing. Valves of each specific type are tested,and results are extended to sizes not testedusing model theory. This approach is funda-mentally correct, but there is some uncertaintybecause of geometric variations betweenvalves.

These uncertainties prevent a guarantee withrespect to valve pressure drop, flow rate andlift performance, but we expect results of cal-culations using Edward Valves methods to beat least as accurate as comparable calcula-tions involving flow and pressure drop ofother piping system components.

This section is divided into two parts. The BasicCalculations section (2.1) covers most applicationswhere pressure drops are not excessive. This is gen-erally the case in most Edward valve applications, andthe simple equations in this section are usually suffi-cient for most problems.

When the pressure drop across a valve is large com-pared to the inlet pressure, refer to the CorrectionsRequired with Large Pressure Drops section (2.2).Various fluid effects must be considered to avoiderrors due to choked flow of steam or gas – or flash-ing or cavitation of liquids. While use of these moredetailed calculations is not usually required, it is rec-ommended that the simple checks in that sectionalways be made to determine if correction of theresults of the Basic Calculations is necessary. Withexperience, these checks can often be made at aglance.

The following equations apply to FULLY OPEN gateand globe valves of all types. They also apply to stop-check and check valves if the flow is sufficient to openthe disk completely. The Check Valve Sizing section(2.3) must be used to determine if a check valve isfully open and to make corrections if it is not.

The following simple methods may be used to calcu-late pressure drop, required flow coefficient, flow rateor inlet flow velocity for fully open Edward valves inthe majority of applications. Always check BasicCalculations against the ∆P/p1 criteria in Figure 14 tosee if corrections are required. This check is auto-matically made when using the Proprietary ValveSizing Computer Program available from EdwardValves.

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2.1 Choose the Best Valve Size forYour Service Conditions

2.1.1 Pressure Drop, Sizing and FlowRate Calculations – Fully OpenValves – All Types

Equations and calculations outlined in this manual are available in a proprietary Edward Valves computer program.Consult your Edward Valves sales representative for more information.

2.2 Basic Calculations

Note: In preliminary calculations using the following equations, a piping geometry factor, Fp =1.0, may be used, assuming that the valve size is the same as the nominal pipe size. However, if anapplication involves installing a valve in a larger-sized piping system (or piping with a lower pressurerating than the valve, which will have a larger inside diameter), determine Fp from the Pipe ReducerCoefficients section when final calculations are made.


2. Flow Performance (con’t.)

Results of these calculations may be used to select avalve with a valve flow coefficient that meets therequired flow and pressure-drop criteria. Of course,valve selection also required prior determination ofthe right valve type and pressure class, using othersections of this catalog. The tabulated CV of theselected valve should then be used in the appropriatepressure drop or flow-rate equation to evaluate actu-al valve performance. At this stage, the checksdescribed in section 2.2 should be made to correct foreffects of large pressure drops if required.

As discussed below under flow-rate calculations, theflow-coefficient equations assume that the allowablepressure drop is available for the valve. Piping pres-sure drop should be addressed separately.

Caution: In applications of stop-check orcheck valves, the results of these equationswill apply only if the valve is fully open.Always use the methods given in the CheckValve Sizing section (2.3) to assure that thevalve will be fully open or to make appropri-ate corrections.

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2.2.1 Pressure Drop

KNOWN: Flow rate (w or q)Fluid specific gravity (G) orDensity (�)For water, steam or air, seeFigures 22-24

FIND: Valve flow coefficient (CV)from appropriate table

CALCULATE: Pressure drop (∆P)

When flow rate and fluid properties are known,determine required coefficients for a specific valveand calculate the pressure drop from the appropriateequation (see Nomenclature table for definition ofterms and symbols):

∆P = Gq 2 (U.S.)(1a)(FPCV

)

∆P = Gq 2 (metric)(1b)(0.865FPCV

)

∆P = 1 w 2 (U.S.)(1c)�(63.3FPCV

)

∆P = 1 w 2 (metric)(1d)�(27.3FPCV

)

If the resulting pressure drop is higher than desired,try a larger valve or a different type with a higher CV.If the pressure drop is lower than necessary for theapplication, a smaller and more economical valvemay be tried.

2.2.2 Required Flow Coefficient

Nomenclature(Metric units in parentheses)

CV = valve flow coefficient

d = valve inlet diameter, inches (mm)

FL = liquid pressure recovery coefficient,dimensionless

Fp = piping geometry factor, dimensionless

G = liquid specific gravity, dimensionless

G V = gas compressibility coefficient, dimensionless

k = ratio of specific heats, dimensionless

Ki = incipient cavitation coefficient, dimensionless

∆P = valve pressure drop, psi (bar)

∆PC O = valve crack-open pressure drop, psi(bar)

∆PFL = minimum valve pressure drop for full lift-psi (bar)

p1 = valve inlet pressure, psia (bar, abs)

pV = liquid vapor pressure at valve inlet temperature-psia (bar, abs)

q = volumetric flow rate, U.S. gpm (m3/hr)

RF = ratio of sizing parameter to sizing parameter for full lift

Rp = ratio of valve pressure drop to minimumpressure drop for full lift

R1 = pressure drop ratio (gas or steam)

R2 = pressure drop ratio (liquids)

SP = valve sizing parameter

SPFL = valve sizing parameter for full lift

V = fluid velocity at valve inlet, ft/sec (m/sec)

w = weight flow rate-lb/hr (kg/hr)

xT = terminal value of ∆P/p1 for choked gasor steam flow, dimensionless

Y = gas expansion factor, dimensionless

� = weight density of fluid at valve inlet conditions, lb/ft3 (kg/m3)

Conversion factors are provided in theConversion Factors section at the end of this catalog.


2. Flow Performance (con’t.)

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2.2.3 Flow Rate 2.2.4 Inlet Flow Velocity

KNOWN: Flow rate (w or q)Fluid specific gravity (G) orDensity (�)For water, steam or air, seeFigures 22-24

FIND: Valve inlet diameter (d)from appropriate table

CALCULATE: Fluid velocity at valveinlet (V)

While not normally required for valve sizing andselection, the fluid velocity at the valve inlet may becalculated from the appropriate equation:

V = 0.409q (U.S.)(4a)d2

V = 354q (metric)(4b)d2

V = 0.0509w (U.S.)(4c)�d2

V = 354w (metric)(4d)�d2

Note: If a specific pipe inside diameter is known,that diameter may be used as the “d” value in theequation above to calculate the fluid velocity in theupstream pipe.


2.3 Corrections Required With Large Pressure Drops

While most Edward valves are used in relatively high-pressure systems and are usually sized to producelow pressure drop at normal flow rates, care is nec-essary to avoid errors (which may be serious in somecases) due to flow “choking” (or near-choking).Problems arise most often at off-design flow condi-tions that exist only during plant start-up, shutdown,or standby operation.

Since steam and gas are compressible fluids, chok-ing (or near-choking) may occur due to fluid expan-sion which causes the fluid velocity to approach orreach the speed of sound in reduced-area regions.While liquids are normally considered to be incom-pressible fluids, choking may also occur with liquidflow due to cavitation or flashing. In each case, sim-ple calculations can be made to determine if a prob-lem exists. Relatively simple calculations arerequired to correct for these effects. In some cases,these calculations may require a change in the size oftype of valve required for a specific application.

The flow parameters Ki, FL and xT in the valve datatables assume that the valve is installed in pipe of thesame nominal size. This is a fairly good assumptionfor preliminary calculations, but refer to the PipeReducer Coefficients section if there is a mismatchbetween valve and pipe diameters (also see instruc-tions relative to Fp calculations in section 2.1) andmake the appropriate corrections when final calcula-tions are made.

Note: Because large pressure drop problemsare not encountered frequently, equations arepresented in terms of weight flow rate (w) anddensity (�) only. See the Conversion ofMeasurement Units section for convertingother units of flow rate to weight flow rate.

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2.3.1.1 Pressure Drop – To determine if correc-tions are needed for compressible flow effects, usethe data from the Basic Calculations to determinethe ratio of the calculated pressure drop to theabsolute upstream pressure:

R1 = ∆P (5)p1

If the ratio R1 is less than the values in Figure 14,the results of the Basic Calculations will usually besufficiently accurate, and further calculations are unnecessary.

MAXIMUM ∆P/p1 FOR USE OF BASICCALCULATIONS WITHOUT

CORRECTION

If the pressure-drop ratio R1 exceeds that tabulated forthe valve type under evaluation, the proceduredescribed below should be used to check and correctfor possible flow choking or near-choking.

(1) Calculate the gas compressibility coefficient:

G y = 0.467(∆P) (U.S. or metric)(6)kxT p1

Note: The ∆P in this equation is the uncor-rected value from the Basic Calculations.Values of xT are given in valve data tables,and values of k are given in Figure 21.

Valve Type Max. ∆P/p1

Gate 0.01

Inclined-Bonnet Globe 0.02AngleTilting-Disk Check

90°-Bonnet Globe 0.05

Figure 14

Figure 15

2.3.1 Gas and Steam Flow


2.3 Corrections Required With Large Pressure Drops (con’t.)

2.3.1.2 Flow Rate – When calculating the flow ratethrough a valve, the actual pressure drop is known,but the flow may be reduced by choking or near-choking.

To check for high pressure-drop effects, calculate R1,the ratio of pressure drop to absolute upstream pres-sure (see equation 5 above) noting that the pressuredrop in this case is the known value.

(1) Flow rates determined using the BasicCalculations are sufficiently accurate if R1 is less thatabout twice the value tabulated in Figure 14 for theapplicable valve type (higher because actual pressuredrop is used in the ratio). In this case, no correctionis necessary.

(2) When corrections for higher values of R1 arerequired, calculate the gas expansion factor directlyfrom:

Y= 1 – 0.467(∆P/p1)(U.S. or metric)(10)kxT

(3) The calculation method to determine the flow ratedepends on the calculated value of Y from equation(10):

• If Y is greater than 0.667 (but less that 1), the flowis not fully choked. Calculate the corrected flow rateas follows:

wC = Yw (U.S. or metric)(11)

• If Y is equal to or less than 0.667, the valve flow ischoked, and the results of the Basic Calculations areinvalid. The actual flow rate may be calculated fromthe equation for wchoked [(8a) or (8b)] above.

Caution: Choked or near-choked flow con-ditions may produce significant flow-inducednoise and vibration. Prolonged operationwith flow rates in this region may also causeerosion damage within a valve or in down-stream piping, particularly if the flow condi-

tion involve “wet” steam. Edward valves tol-erate these conditions well in services involv-ing limited time periods during plant start-up,shutdown, etc., but consult Edward Valvesabout applications involving long exposure tosuch conditions.

The fluid pressure in high-velocity regions within avalve may be much lower than either the upstreampressure of the downstream pressure. If the pressurewithin a valve falls below the vapor pressure (pv) ofthe liquid, vapor bubbles or cavities may form in theflow stream. Cavitation, flashing and choking mayoccur. Use the equations and procedures in this sec-tion to evaluate these phenomena.

Cavitation and flashing are closely related, and theymay be evaluated by calculating a pressure-drop ratiothat is slightly different from that used for gas orsteam:

R1 = ∆P (12)(p1�pv)

To evaluate a particular valve and application, findvalues of Ki and FL from the appropriate valve-datatable, find pV values for common liquids given inFigure 25, calculate R2, and perform the followingchecks:

(1) Cavitation – the sudden and sometimes violentcoalescence of the cavities back to the liquid state –occurs when the downstream pressure (within thevalve or in the downstream pipe) recovers to abovethe vapor pressure.

• If R2 < Ki, there should be no significant cavitationor effect on flow or pressure drop. Results of theBasic Calculations require no correction.

• If R2 > Ki, cavitation begins. If the ratio is onlyslightly greater than Ki, it may be detected as an inter-mittent “ticking” noise near the valve outlet, although

pipe insulation may muffle this sound. This stage ofcavitation is usually related to tiny vapor cavities thatform near the center of vortices in the flow stream,and it generally produces neither damage nor effectson flow characteristics. However, as the pressure dropratio R2 increases, the noise progresses to a “shh,”then a “roar.”

• If R2 > (Ki + FL2)/2, approximately, larger vapor cav-

ities develop and the risk of cavitation damage (pit-ting) in the valve or downstream pipe may be a con-cern if this flow condition is sustained for significantperiods of time. Noise may also pose a problem. Still,at this stage, there is usually no significant effect onvalve flow characteristics. Results of the BasicCalculations require no correction.

As the pressure-drop ration increases beyond thispoint, some valves suffer slight reductions in their CV

values, but there is no practical way of correctingpressure drop or flow calculations for this effect.Vibration and noise increase, ultimately sounding like“rocks and gravel” bouncing in the pipe at about thepoint where flow becomes choked.

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2.3.2 Liquid Flow – Cavitationand Flashing


2.4 Check Valve Sizing

The most important difference between check (includ-ing stop-check) valves and stop valves, from a flowperformance standpoint, is that the check valve disk isopened only by dynamic forces due to fluid flow. Thepreceding calculation methods for flow and pressuredrop are valid only if it can be shown that the valve isfully open.

The primary purpose of this section is to provide meth-ods to predict check valve disk opening and to makecorrections to pressure-drop calculations if the valve isnot fully open. These methods are particularly applica-ble to sizing valves for new installations, but they arealso useful for evaluation of performance of existingvalves.

In selecting a stop-check or check valve for a newinstallation, the first steps require selecting a propertype and pressure class. The Stop and Check ValveApplications Guide section of this catalog should bereviewed carefully when the type is selected, notingadvantages and disadvantages of each type and con-sidering how they relate to the requirements of theinstallation. Other sections of this catalog providepressure ratings to permit selection of the requiredpressure class.

The first step in evaluating a stop-check or check valveapplication is to determine the Sizing Parameter basedon the system flow rate and fluid properties:

SP = w (U.S. or metric)(16)

√�

Tables in this section provide a Sizing Parameter forfull lift (SpFL) for each Edward stop-check and checkvalve. The amount of opening of any check valve andits effect on pressure drop can be checked simply asfollows:

• If SpFL < SP, the valve is fully open. Pressure dropmay be calculated using the equations given previous-ly for fully open valves (including corrections for largepressure drops if required).

• IF SPFL > SP, the valve is not fully open. A smallersize valve or another type should be selected if possi-ble to assure full opening. If that is not feasible, threeadditional steps are required to evaluate the openingand pressure drop of the valve under the specified ser-vice conditions.

Note: EPRI Report No. NP 5479 (ApplicationGuideline 2.1) uses a “C” factor to calculate theminimum flow velocity required to fully open acheck valve. The sizing procedures in this cat-alog do not employ the “C” factor, but valuesare given in the valve data tables for readerswho prefer to use the EPRI methods. Since theEPRI methods are based on velocity, a flowarea is required as a basis. Valve InletDiameters presented in data tables are thebasis for correlation between flow rate andvelocity.

If the preceding evaluation revealed an incompletelyopen check valve, perform the following additional cal-culations:

Calculate the flow-rate ratio:

RF = SP (U.S. or metric)(17)SPFL

Determine the disk operating position:

Using the RF value calculated above, determine thevalve operating position from Figure 16 (forged-steelvalves) or Figures 17-20 (cast-steel valves).Performance curve numbers for individual cast-steelstop-check and check valves are given in the tabula-tions with other coefficients. Evaluate the acceptabilityof the operating position based on recommendationsin the Check Valve Applications Guide and in the spe-cific sizing guidelines below.

Calculate the pressure drop:

Again using the RF value calculated above, determinethe pressure drop ratio RP from Figures 16-20, and cal-culate the valve pressure drop at the partially openposition:

∆P = RP∆PFL (U.S. or metric)(18)

Values for ∆PFL for all stop-check and check valves aregiven in Valve Tables 1 to 5 and 10 to 15 with othercoefficients.

Note: The values of the various valve coeffi-cients given in the tabulations are based ontesting of a substantial number of valves. Mostare applicable to any line fluid, but thoseinvolving check valve lift are influenced bybuoyancy. Tabulated values are based on refer-ence test conditions with room-temperaturewater. SPFL and ∆PFL are slightly higher inapplications involving lower-density line flu-ids. Considering the expected accuracy ofthese calculations, the following correctionsmay be considered:

• For water at any temperature and other com-mon liquids – No correction required.

• For steam, air and other common gases atnormal operating pressures and tempera-tures – Increase SPFL by 7% and increase∆PFL by 14%.

Considering the recommendations in the Check ValveApplications Guide section of this catalog and the cal-culation methods described above, the following spe-cific steps are recommended for sizing check valves foroptimum performance and service life (it is assumedthat the check valve type and pressure class havealready been selected before starting this procedure):

(1) Constant flow rate – If the application involvesa substantially constant flow rate during all operatingconditions, the check valve should be sized to be fullyopen. This may be accomplished by the following pro-cedure:

• Calculate the check valve sizing parameter (SP) forthe application from equation (15). Values of densityfor water, steam, and air are available in Figures 22-24.

If the flow rate is not given in lb/hr (or kg/hr), refer tothe Conversion of Measurement Units section of thiscatalog to make the necessary calculation.

• Select the valve size with the next smaller SPFL valuefrom valve data tables (Tables 1-5 for forged-steelvalves and Tables 10-15 for cast-steel valves). Makenote of the CV, ∆PCO, ∆PFL, Ki, FL and xT values for usein later calculations.

Note: Preferably, there should be a good mar-gin between SP and SPFL to be sure the valvewill be fully open. In the specific case of tilting-disk check valves, it is recommended that SPFL

be less than 0.83 (SP) to be sure that the diskis fully loaded against its stop (particularly if itis close to a flow disturbance).

• Calculate the pressure drop using the BasicCalculation method in equation (1) and the Cxx valueof the valve size selected above. Make the simplechecks described above in section 2.2 (CorrectionsRequired With Large Pressure Drops), and makeappropriate corrections in necessary (this is rarelyneeded for a valve sized for constant flow rate, but thecheck is desirable).

• Evaluate the pressure drop. If it is too high, a largersize or another check valve type should be tried. If it islower than necessary for the application, a smaller andmore economical valve (with a lower SPFL) may beevaluated with assurance that it would also be fullyopen.

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2.4.1 Sizing Parameter

2.4.2 Calculations forCheck Valves Less ThanFully Open

2.4.3 Sizing Guidelines


2.4 Check Valve Sizing

• Evaluate the crack-open pressure drop (∆PCO) to becertain that the system head available at the initiation offlow will initiate valve opening. Note that, for somevalves, the crack-open pressure drop exceeds the pres-sure drop for full lift. Preceding calculations mightindicate no problem, but it is possible that a valvemight not open at all in a low-head application (e.g.,gravity flow).

(2) Variable flow rate – If the application involvescheck valve operation over a range of flow rates, addi-tional calculations are necessary to assure satisfacto-ry, stable performance at the lowest flow rate withoutcausing excessive pressure drop at the maximumflow condition. This required careful evaluation ofspecific system operating conditions (e.g., are theminimum and maximum flow rates normal operatingconditions or infrequent conditions that occur onlyduring start-up or emergency conditions?).

The following options should be considered inselecting the best stop-check or check valve size forvariable flow applications:

• The best method, if practical, is to size the valve tobe fully open at the minimum flow condition. Thismay be done by following the first two steps listedabove for the constant flow-rate case, but using theminimum flow rate in the sizing parameter (SP) cal-culation.

The only difference is that the pressure-drop calcula-tions and evaluations in the third and fourth stepsmust be repeated at normal and maximum flow rates.If the selected valve size is fully open at the minimumflow rate and has an acceptable pressure drop at themaximum flow condition, it should give good overallperformance.

• Sometimes a change in valve type provides the bestcost-effective solution for variable-flow applications(e.g. use a smaller Flite-Flow® stop-check or checkvalve instead of a 90°-bonnet type to provide full liftat the minimum flow condition, but a high CV for lowpressure drop at maximum flow).

• Operation at less than full lift may have to be con-sidered.

(3) Operation at less than full lift – “HighTurndown” applications sometimes exist on boilersand other process systems that must swing throughperiodic flow changes from start-up, to standby, tomaximum, and back again. In such cases, calcula-tions may not reveal any single valve that will offer asatisfactory compromise assuring full lift and anacceptable pressure drop at both minimum and max-imum flow conditions.

It may be acceptable to permit a check valve to oper-ate at less than fully open at the minimum flow con-dition if such operation is infrequent or not expectedto be sustained continuously for long periods. A valvemay be sized by following the methods above usingthe lowest expected normal sustained flow rate in thesizing parameter (SP) calculation. Pressure drop atnormal and maximum flow rates should then be cal-culated and evaluated.

The acceptability of valve operation at the minimumflow condition should be evaluated as follows:

• Calculate the sizing parameter (SP) at the minimumflow rate and the flow-rate ratio RF from equation (17).The valve operating position (% open) should bedetermined from the proper performance curve(Figures 16-20).

Caution: Check valve operation at less than25% opening is not recommended. Anycheck valve that operates for sustained peri-ods at partial openings should be monitoredor inspected periodically for evidence ofinstability or wear.

• If the minimum operating position is consideredsatisfactory, the pressure drop at the minimum flowcondition may be calculated from equation (18),using the pressure-drop ratio (Rp) determined fromthe proper performance curve.

(4) Alternatives for high turndown applica-tions – If the preceding steps show that the range offlow rates is too large for any single standard checkvalve, consult Edward Valves. Several alternativesmay be considered:

• Either 90°-bonnet or angle-type stop-check or pis-ton-lift check valves may be furnished with a specialdisk with an extended “skirt” as illustrated in Figure15A. This skirt increases flow resistance at low flowrates, producing additional lifting force to help pre-vent operation at small openings.

Of course, the skirt also reduces the CV of the valvesomewhat when it is fully open and increases pres-sure drop at maximum flow. Nevertheless, a specialdisk sometimes solves difficult high turndown prob-lems. A special disk also permits solution of someproblems with existing valves that are “oversized.”

• A stop-check valve may be used with the stem lift-ed just enough to provide a positive stop for the diskat very low flows (e.g., short-term start-up condi-tions). The stem should be lifted with increasing flowrate to maintain the disk-stopping action while pre-venting excessive pressure drop. At normal flowrates, the stem can be lifted to its fully open position,permitting normal check valve function. The stem

may be actuated manually for infrequent start-upoperations, or a motor actuator may be furnished forconvenience if large flow rate variations are expectedto be frequent.

Caution: This arrangement could producecavitation or flow-choking problems if theflow rate is increased substantially withoutlifting the valve stem to compensate.

• A small check or stop-check valve may be installedin parallel with a larger stop-check valve. The small-er valve may be sized for the minimum flow condition,and the larger stop-check may be held closed with thestem until the flow is sufficient to assure adequate lift.If necessary, the stem on the larger valve may beopened gradually with increasing flow to maintaindisk-stopping action as in the example above. Thesmaller valve may be allowed to remain open at high-er flow rates or, if a stop-check type is used, it may beclosed if preferred. Either or both valves may be man-ually actuated or furnished with a motor actuator forconvenience.

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Figure 15A

normalflow

direction

Disk Skirt


2.5 Pipe Reducer Coefficients

The equations in the Flow Performance section of thiscatalog use a piping geometry factor, Fp, to accountfor the effect of pipe reducers attached directly to thevalve. This permits the valve and pipe reducers to betreated as an assembly, i.e., FpCV is the flow coeffi-cient of the valve/pipe reducer combination. Then, thepressure drop in the flow equations is the pressuredrop of the assembly.

This method is also applicable when valves are fur-nished with oversized ends to fit larger diameter pipe.It should also be used to evaluate line-size valvesused in pipe with a lower pressure rating than thevalve, because such pipe may have less wall thick-ness and a larger inside diameter than the valve inletdiameter given in the valve data tabulations.

This section provides equations for calculation of thepiping geometry factor, Fp, which should be usedeven in Basic Calculations when there is a significantdifference between the pipe diameter and valve inletdiameter (d).

In addition, other coefficients (K1, FL, xT) are affect-ed by the presence of pipe reducers. Equations arealso provided for correction of these terms, which arerequired only when evaluating significant valve-to-pipe diameter mismatch.

Note: These equations apply only where thevalve diameter is less than the connectingpipe diameter.

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2.5.1 Pipe Geometry Factor

2.5.2 Other Coefficients

CV = valve flow coefficient. See Valve Reference Data.

d = valve-end inside diameter, inches, (mm). See Valve Reference Data.

D1 = inside diameter of upstream pipe, inches, (mm). See Pipe Data Section.

D2 = inside diameter of downstream pipe, inches, (mm). See Pipe Data Section.

FL = liquid-pressure recovery coefficient,dimensionless*

Fp = piping-geometry factor, dimensionless

K1 = pressure-loss coefficient for inlet reducer,dimensionless

K2 = pressure-loss coefficient for outlet reducer, dimensionless

KB1 = pressure change (Bernoulli) coefficient forinlet reducer, dimensionless

�K = K1 + K2, dimensionless

Ki = incipient-cavitation coefficient, dimensionless*

xT = terminal value of ∆P/p1 for choked gas orsteam flow, dimensionless

* Double subscripts (e.g., Kii) represent values corrected for effects of pipe reducers.

Nomenclature


Forged Steel Angle Univalve Flow Coefficients

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CHECK VALVES* CHECK VALVES*SIZE ALL STOP & CHECK VALVES WITH SPRINGS (STD) WITHOUT SPRINGS

NPS DN CV FL xT Ki d ∆PFL SPFL C ∆PFL SPFL C

Bold faced numerals are in U.S. customary units or dimensionless.Brown numerals are in metric units.

0.50 15 10.5

0.75 20 10.5

1.00 25 10.5

1.25 32 31 0.801.50 40 31

2.00 50 50

2.50 65 90

3.00 80 90

0.68 17.3

0.68 17.3

0.68 17.3

0.41 0.16 1.19 30.2 6.0 0.411.19 30.2

1.50 38.1

2.00 50.8

2.00 50.8

887 101 179

1522 172 179

1522 172 179

5326 604 179 1.5 0.1035066 574 179

8620 977 180

13,916 1580 179

12,715 1440 179

468 53 165

804 91 165

804 91 165

2810 318 164

2670 303 164

4550 516 166

7360 834 165

6690 758 165

Class 1690 (PN 290) All Stop valves, all Stop-Check valves, all Piston Check valves

0.50 15 10.5

0.75 20 10.5

1.00 25 10.5

1.25 32 19 0.801.50 40 19

2.00 50 50

2.50 65 89

3.00 80 89

0.68 17.3

0.68 17.3

0.68 17.3

0.41 0.16 0.94 23.9 6.0 0.410.94 23.9

1.50 38.1

2.00 50.8

2.00 50.8

729 83 179

625 71 179

1140 129 179

3120 354 177 1.5 0.1032910 330 177

7290 826 180

10,400 1180 179

10,400 1180 179

385 44 165

330 37 165

604 68 165

1650 187 163

1540 175 163

3850 436 166

5490 622 165

5490 622 165


NOTES: See Table 9 for DPCO.

See notes following paragraph 2.4.1, page G-28, for discussion of C factor.* Stop-check valves are only furnished without springs.

Edward Valves • 1900 South Saunders Street, Raleigh, North Carolina 27603 • 1-800-225-6989 • 1-919-832-0525 • Fax 1-919-831-3369 G30A

Table 1A Forged Steel Univalve Flow Coefficients

G




0.50 15 7.0

0.75 20 12

1.00 25 12

1.25 32 42

1.50 40 40 0.66

2.00 50 68

2.50 65 110

3.00 80 100

4.00 100 85

0.464 11.8

0.612 15.5

0.815 20.7

1.160 29.5

0.27 0.16 1.338 34.0 4.0 0.28

1.687 42.8

2.125 54.0

2.624 66.6

3.438 87.3

886 100 210

1520 172 207

1520 172 117

5320 602 201

5060 574 144 1.0 0.069

8610 975 154

13,900 1580 157

12,700 1430 94

10,800 1220 46

443 50.2 105

760 86.0 103

760 86.0 58

2660 301 101

2530 287 72

4300 488 77

6960 789 79

6330 717 47

5380 609 23

0.50 15 7.0

0.75 20 12

1.00 25 11

1.25 32 30

1.50 40 28 0.63

2.00 50 70

2.50 65 100

3.00 80 100

4.00 100 90

0.464 11.8

0.612 15.5

0.599 15.2

0.896 22.8

0.24 0.15 1.100 28.0 4.0 0.28

1.503 38.2

1.771 45.0

2.300 58.4

3.152 80.1

886 100 210

760 86.0 103

1390 158 198

3800 430 241

3540 401 149 1.0 0.069

8860 1000 200

12,700 1430 206

12,700 1430 122

11,400 1290 58

443 50.2 105

380 43.0 52

696 78.9 99

1900 215 121

1770 201 75

4430 502 100

6330 717 103

6330 717 61

5700 645 29

0.50 15 2.0

0.75 20 6.0

1.00 25 12

1.25 32 12

1.50 40 11 0.64

2.00 50 48

2.50 65 62

3.00 80 60

4.00 100 55

0.252 6.4

0.434 11.0

0.599 15.2

0.808 20.5

0.25 0.15 0.926 23.5 4.0 0.28

1.156 29.4

1.400 35.6

1.700 43.2

2.200 55.9

253 28.7 203

760 86.0 205

1520 172 216

1520 172 117

1390 158 82 1.0 0.069

6080 688 230

7850 889 202

7600 860 132

6960 789 76

127 14.3 102

380 43.0 103

760 86.0 108

760 86.0 59

696 78.9 41

3040 344 115

3920 444 101

3800 430 66

3480 394 37



Class 4500 (PN760) All Stop valves, all Stop-Check valves, all Piston Check valves


See notes following paragraph 2.4.1, page G-28, for discussion of C factor.* Stop-check valves are only furnished without springs.


Table 1BForged Steel PressurCombo Flow Coefficients

G

SIZE PRESSURSEAT (DS) PRESSUREATER (DE) PRESSURCOMBO (DC)

NPS DN CV FL xT Ki d CV FL xT Ki d CV FL xT Ki d

0.50 15 5.0 0.464 11.8 5.0 0.464 11.8 4.1 0.464 11.8

0.75 20 6.1 0.612 15.5 5.9 0.612 15.5 4.5 0.612 15.5

1.00 25 6.1 0.815 20.7 5.6 0.815 20.7 4.4 0.815 20.7

1.25 32 12 1.160 29.55 11 1.160 29.5 8.0 1.160 29.5

1.50 40 12 .85 .50 .27 1.338 34.0 11 .80 .45 .24 1.338 34.0 8.0 .80 .45 .24 1.338 34.0

2.00 50 30 1.687 42.3 28 1.687 42.8 22 1.687 42.8

2.50 65 53 2.125 54.0 51 2.125 54.0 39 2.125 54.0

3.00 80 51 2.624 66.6 47 2.624 66.6 37 2.624 66.6

4.00 100 49 3.438 87.3 43 3.438 87.3 35 3.438 87.3

CLASS 1690 (PN 290) 36124, 36128, 36224, 36228


0.50 15 5.0 0.464 11.8 5.0 0.464 5.0 4.1 0.464 11.8

0.75 20 4.6 0.612 15.5 4.5 0.612 4.5 3.8 0.612 15.5

1.00 25 6.0 0.599 15.2 5.7 0.599 5.7 4.5 0.599 15.2

1.25 32 12 0.896 22.8 12 0.896 12 8.9 0.896 22.8

1.50 40 12 .85 .50 .27 1.100 28.0 11 .80 .45 .24 1.100 11 8.3 .80 .45 .24 1.100 27.9

2.00 50 31 1.502 38.2 30 1.502 30 23 1.502 38.2

2.50 65 52 1.771 45.0 56 1.771 56 41 1.771 45.0

3.00 80 52 2.300 58.4 48 2.300 48 38 2.300 58.4

4.00 100 50 3.152 80.1 44 3.152 44 36 3.152 80.1

0.50 15 1.9 0.252 6.4 1.5 0.252 6.4 1.4 0.252 6.4

0.75 20 4.6 0.434 11.0 4.4 0.434 11.0 3.8 0.434 11.0

1.00 25 6.1 0.599 15.2 5.8 0.599 15.2 4.5 0.599 15.2

1.25 32 6.1 0.808 20.5 5.6 0.808 20.5 4.4 0.808 20.5

1.50 40 5.9 .85 .50 .27 0.926 23.5 5.3 .80 .45 .24 0.926 23.5 4.3 .80 .45 .24 0.926 23.5

2.00 50 28 1.156 29.4 29 1.156 29.4 22 1.158 29.4

2.50 65 30 1.400 35.6 30 1.400 35.6 23 1.400 35.6

3.00 80 30 1.700 43.2 28 1.700 43.2 22 1.700 43.2

4.00 100 29 2.200 55.9 25 2.200 55.9 21 2.200 55.9

Class 2680 (PN 460) 66124, 66128, 66224, 66228

Class 4500 (PN 760) 96124, 96128, 96224, 96228


Table 2Forged Steel Inclined Bonnet Valve Flow Coefficients

G



0.25 8 1.4

0.38 10 3.3

0.50 15 3.3

0.75 20 5.70.72

1.00 25 13.5

1.25 32 23.5

1.50 40 37.5

2.00 50 48.5

0.364 9.2

0.493 12.5

0.546 13.9

0.30 0.200.742 18.8

5.0 0.340.957 24.3

1.278 32.5

1.500 38.1

1.939 49.3

198 22.4 76

467 52.9 98

467 52.9 80

722 81.8 670.6 0.041

1910 216 106

3330 377 104

5290 600 120

6860 778 93

68.6 7.77 26

162 18.3 34

162 18.3 28

250 28.3 23

662 75.0 37

1150 131 36

1830 208 42

2380 269 32

0.25 8 1.7

0.38 10 3.9

0.50 15 3.8

0.75 20 6.80.75

1.00 25 10.5

1.25 32 28

1.50 40 26.5

2.00 50 41.5

0.302 7.7

0.423 10.7

0.464 11.8

0.34 0.200.612 15.5

5.0 0.340.815 20.7

1.160 29.5

1.338 34.0

1.687 42.8

241 27.3 134

552 62.5 157

538 60.9 127

963 109 1310.6 0.041

1490 168 114

3960 449 150

3750 425 107

5870 665 105

83.4 9.45 47

191 21.7 54

186 21.1 44

333 37.8 45

515 58.3 39

1370 155 52

1300 147 37

2030 230 36


See note following paragraph 2.4.1, page G-28, for discussion of C factor.

Series 1500 Figure No. 1048/1048Y Stop valve, 1068/1068Y Stop-Check valve, 1038/1038Y Piston Check valve

Class 800 (PN 130) Figure No. 848/848Y Stop valve, 868/868Y Stop-Check valve, 838/838Y Piston Check valve



Table 3Forged Steel Angle Valve Flow Coefficients

G



0.25 8 2.6

0.38 10 2.9

0.50 15 2.8

0.75 20 4.80.64

1.00 25 10.5

1.25 32 31

1.50 40 30

2.00 50 38.5

0.364 9.2

0.493 12.5

0.546 13.9

0.25 0.160.742 18.8

6.0 0.410.957 24.3

1.278 32.5

1.500 38.1

1.939 49.3

403 45.7 155

450 50.9 94

434 49.2 74

744 84.3 690.8 0.055

1630 184 91

4810 544 150

4650 527 105

5970 676 81

147 16.7 57

164 18.6 34

159 18.0 27

272 30.8 25

595 67.3 33

1760 199 55

1700 192 38

2180 247 30

0.25 8 1.9

0.38 10 2.9

0.50 15 2.9

0.75 20 5.00.61

1.00 25 7.7

1.25 32 20

1.50 40 20

2.00 50 33.5

0.302 7.7

0.423 10.7

0.464 11.8

0.22 0.140.612 15.5

6.0 0.410.815 20.7

1.160 29.5

1.338 34.0

1.687 42.8

295 33.4 165

450 50.9 128

450 50.9 106

775 87.8 1050.8 0.055

1190 135 92

3100 351 117

3100 351 88

5190 588 93

108 12.2 60

164 18.6 47

164 18.6 39

283 32.1 39

436 49.4 33

1130 128 43

1130 128 32

1900 215 34

0.50 15 3.3

0.75 20 5.7

1.00 25 17.50.55

1.25 32 36

1.50 40 35

2.00 50 45.5

0.546 13.9

0.742 18.8

0.19 0.110.957 24.3

6.0 0.411.278 32.5

1.500 38.1

1.939 49.3

512 58.0 87

884 100 82

2710 307 1510.8 0.055

5580 632 174

5430 615 123

7050 799 96

187 21.2 32

323 36.5 30

991 112 55

2040 231 64

1980 224 45

2580 292 35

0.50 15 2.7

0.75 20 4.7

1.00 25 7.50.65

1.25 32 21

1.50 40 21

2.00 50 31.5

0.464 11.8

0.612 15.5

0.24 0.160.815 20.7

6.0 0.411.160 29.5

1.338 34.0

1.687 42.8

419 47.4 99

729 82.5 99

1160 132 890.8 0.055

3260 369 123

3260 369 93

4920 557 88

153 17.3 36

266 30.1 36

425 48.1 33

1190 135 45

1190 135 34

1790 203 32

NOTES: See Table 9 for DPCO.See note following paragraph 2.4.1, page G-28, for discussion of C factor.See Table 15, page G-55 for Hermavalves.

Series 1500 Figure No. 1029 Stop valves, 1047 Stop-Check valves

Series 1500 Figure No. 1049/1049Y Stop valves, 1069/1069Y Stop-Check valves

Class 800 (PN 130) Figure No. 849/849Y Stop valves, 869/869Y Stop-Check valves

Class 600 (PN 110) Figure No. 829 Stop valves, 847 Stop-Check valves




Table 4Edward Forged Steel Vertical Stem Globe Valve &90° Bonnet Piston Check Valve Flow Coefficients

G




0.50 15 2.4

0.75 20 4.2

1.00 25 13.50.63

1.25 32 27.5

1.50 40 27

2.00 50 35.5

0.546 13.9

0.742 18.8

0.29 0.150.957 24.3

8.0 0.551.278 32.5

1.500 38.1

1.939 49.3

430 48.7 73

752 85.2 70

2400 272 1331.2 0.083

4920 558 154

4830 548 109

6360 720 86

166 18.8 28

291 33.0 27

929 105 52

1910 216 59

1870 212 42

2460 279 33

0.50 15 3.6

0.75 20 6.2

1.00 25 6.20.68

1.25 32 18

1.50 40 17.5

2.00 50 24.5

0.464 11.8

0.612 15.5

0.27 0.170.815 20.7

8.0 0.551.160 29.5

1.338 34.0

1.687 42.8

645 73.0 153

1110 126 151

1110 126 851.2 0.083

3220 365 122

3130 355 89

4390 497 79

250 28.3 59

430 48.7 58

430 48.7 33

1250 141 47

1210 137 35

1700 192 30



Series 1500 Figure No. 1028 Stop valve, 1046 Stop-Check valve, 1058 Piston Check valve

Series 600 (PN 110) Figure No. 828 Stop valve, 846 Stop-Check valve, 858 Piston Check valve

Table 5Forged Steel Ball Check Valve Flow Coefficients

G

CHECK VALVESSIZE CHECK VALVE FLOW COEFFICIENTS WITH SPRINGS (STD)

NPS DN CV FL xT Ki d ∆PFL SPFL C


0.25 8 1.5

0.38 10 3.5

0.50 15 3.5

0.75 20 6.10.53 0.16 0.11

1.00 25 14

1.25 32 25

1.50 40 39.5

2.00 50 51.5

0.364 9.2

0.493 12.5

0.546 13.9

0.742 18.86.0 0.41

0.957 24.3

1.278 32.5

1.500 38.1

1.939 49.3

233 26.3 89

543 61.5 114

543 61.5 93

946 107 88

2170 246 121

3880 439 121

6120 694 139

7990 904 108

0.25 8 1.1

0.38 10 2.5

0.50 15 2.4

0.75 20 4.30.77 0.37 0.16

1.00 25 6.6

1.25 32 17.5

1.50 40 17

2.00 50 26.5

0.302 7.7

0.423 10.7

0.464 11.8

0.612 15.56.0 0.41

0.815 20.7

1.160 29.5

1.338 34.0

1.687 42.8

171 19.3 95

388 43.9 110

372 42.1 88

667 75.5 91

1020 116 79

2710 307 103

2640 299 75

4110 465 74

0.25 8 0.40

0.38 10 0.80

0.50 15 1.3

0.75 20 3.50.96 0.57 0.24

1.00 25 2.9

1.25 32 3.5

1.50 40 3.5

2.00 50 14

0.133 3.4

0.205 5.2

0.252 6.4

0.434 11.020.0 1.4

0.599 15.2

0.808 20.5

0.926 23.5

1.156 29.4

113 12.8 326

227 25.7 275

368 41.7 295

991 112 268

821 93.0 117

991 112 77

991 112 58

3960 449 150

2.00 50 14 0.96 0.57 0.24 1.502 38.2 20 1.4 3960 449 89



10000 CWP (690 Bar) Figure No. 160/160Y Hydraulic Check valve, 9160 Hydraulic Check valve

5000 CWP (345 Bar) Figure No. 5160 Hydraulic Check valve

Class 800 (PN 130) Figure No. 832/832Y Ball Check valve

Series 1500 Figure No. 1032/1032Y Ball Check valve


Table 6Hydraulic Stop Valve Flow Coefficients

Table 7Inclined Bonnet Blow-Off Valve Flow Coefficients

G



CHECK VALVES CHECK VALVESSIZE ALL STOP VALVES WITH SPRINGS (STD) WITHOUT SPRINGS


0.25 8 1.6

0.38 10 1.6

0.50 15 1.6

0.75 20 3.60.48

1.00 25 5.7

1.25 32 9.1

1.50 40 19

2.00 50 33

0.133 3.4

0.205 5.2

0.252 6.4

0.30 .0240.434 11.0

0.599 15.2

0.808 20.5

0.926 23.5

1.156 29.4

N/A

5,000 PSI (345 BAR) CWP Figure No. 158/158Y Hydraulic Stop Valves10,000 PSI (690 BAR) CWP Figure No. 5158, 9158 Hydraulic Stop Valves



1.50 40 44 0.49 0.32

2.00 50 67 0.69 0.44

2.50 65 100 0.53 0.34

1.610 40.9

0.20 2.067 52.5

2.469 62.7

N/A

1.50 40 43 0.55 0.35

2.00 50 68 0.71 0.44

2.50 65 110 0.56 0.35

1.500 38.1

0.20 1.939 49.3

2.323 59.0

N/A

Class 600 (PN 110) Figure No. 1641/1641Y



Table 8Angle Blow-Off Valve Flow Coefficients

G



1.50 40 45 0.48 0.31

2.00 50 80 0.48 0.31

2.50 65 110 0.53 0.34

1.610 40.9

0.15 2.067 52.5

2.469 62.7

N/A

1.50 40 41 0.60 0.38

2.00 50 81 0.50 0.31

2.50 65 110 0.56 0.35

1.500 38.1

0.15 1.939 49.3

2.323 59.0

N/A





Table 9Crack-Open ∆P forEdward Forged Steel Check Valves, ∆PCO- PSI (BAR)

G


Inclined, Bolted Bonnet Horizontal Bonnet up 0.7 − 0.9 0.05 − 0.06 0.1 − 0.5 0.007 − 0.03

Piston Lift Horizontal Bonnet sideways* 0.3 − 0.8 0.02 − 0.06 Horizontal Bonnet down* 0.05 − 0.7 0.003 − 0.05

Vertical Bonnet up 0.7 − 1.0 0.05 − 0.07 0.1 − 0.3 0.007 − 0.02

Vertical Bonnet down* 0.05 − 0.7 0.003 − 0.05

90°, Bolted Bonnet Horizontal Bonnet up 0.8 − 1.0 0.06 − 0.07 0.1 − 0.6 0.007 − 0.04


Vertical 0.4 − 0.8 0.03 − 0.06

Inclined, Univalve Horizontal Bonnet up 1.0 − 1.5 0.07 − 0.10 0.4 − 0.8 0.03 − 0.06


Vertical Bonnet up 1.0 − 1.5 0.07 − 0.10 0.4 − 0.8 0.03 − 0.06

Vertical Bonnet down* 0.05 − 1.1 0.003 − 0.08

Inclined, Ball Lift Horizontal Bonnet up 0.9 − 1.7 0.06 − 0.10 Horizontal Bonnet sideways* 0.7 − 1.4 0.05 − 0.10 Horizontal Bonnet down* 0.5 − 1.2 0.03 − 0.08

Vertical Bonnet up 0.9 − 1.7 0.06 − 0.10 Vertical Bonnet down* 0.5 − 1.2 0.03 − 0.08

* Not recommended because of possible accumulation of debris in valve neck.

VALVE TYPE INSTALLATION VALVES WITH SPRINGS VALVES WITHOUT SPRINGSORIENTATION (STD)


Figure 16Edward Forged Steel Check Valve Flow Performance Curves

G

Figure 16-A

RANGE DUE TOVALVE-TO-VALVE

DESIGN VARIATIONS

Figure 16-B


Table 10Edward Cast Steel Globe Flow Coefficients

G

Class 300 (PN 50) Figure No. 318/318Y Stop valves, 304/304Y Stop-Check valves, 394/394Y Check valves

2.5 65 84 0.97 0.61

3 80 120 0.97 0.61 0.10

4 100 215 0.97 0.60

5 125 335 0.97 0.61

6 150 580 0.81 0.42

8 200 1000 0.81 0.42 0.07

10 250 1550 0.81 0.42

12 300 2200 0.81 0.42

14 350 2650 0.81 0.42

2.50 63.5 0.79 0.054 1.3 0.088 5990 679 49 4

3.00 76.2 0.80 0.055 1.4 0.095 8980 1020 51 4

4.00 102 0.97 0.067 1.8 0.12 18,100 2050 58 4

5.00 127 1.2 0.084 2.3 0.16 31,900 3610 65 4

6.00 152 1.2 0.086 1.2 0.085 40,800 4620 58 1

7.87 200 1.2 0.081 1.1 0.079 67,600 7660 56 1

9.75 248 1.3 0.092 1.2 0.084 107,000 12,100 57 1

11.75 298 1.5 0.10 1.4 0.099 169,000 19,100 62 1

12.87 327 1.6 0.11 1.5 0.10 205,000 23,200 63 1

Class 600 (PN 110) Figure No. 616/616Y, 618/618Y, 716Y Stop valves, 606/604Y, 706Y Stop-Check valves,694/694Y, 690/690Y, 794Y Check valves

2.50 63.5 0.58 0.040 0.31 0.021 5630 637 46 4

3.00 76.2 0.79 0.054 1.3 0.088 5990 679 34 4

4.00 102 0.80 0.055 1.4 0.095 8980 1020 29 4

5.00 127 0.97 0.067 1.8 0.12 18,100 2050 37 4

6.00 152 1.2 0.084 2.3 0.16 31,900 3610 45 1

8.00 203 1.2 0.086 1.2 0.085 40,800 4620 33 1

10.00 254 1.2 0.081 1.1 0.079 67,600 7660 34 1

12.00 305 1.3 0.092 1.2 0.084 107,000 12,100 38 1

2.5 65 110 0.53 0.34 0.20

3 80 84 0.80 0.43

4 100 120 0.79 0.43

5 125 215 0.79 0.43

6 150 335 0.80 0.44

8 200 580 0.76 0.39 0.06

10 250 1000 0.77 0.40

12 300 1550 0.77 0.40

PERF.SIZE ALL STOP & CHECK VALVES CHECK VALVE COEFFICIENTS CURVES

NPS DN CV FL xT Ki d ∆PCO ∆PFL SPFL C FIG. 17

2.87 72.9 0.92 0.063 1.5 0.10 8510 964 53 4

3.87 98.2 1.3 0.090 2.3 0.16 19,500 2210 66 5

4.75 121 1.3 0.092 2.5 0.18 30,600 3470 69 4

5.75 146 1.2 0.085 1.5 0.10 41,500 4700 64 3

7.50 191 1.3 0.093 1.5 0.10 69,500 7870 63 2

9.37 238 1.6 0.11 1.8 0.12 119,000 13,500 69 1

11.12 282 1.8 0.12 2.1 0.14 182,000 20,600 75 2

12.25 311 1.6 0.11 1.9 0.13 211,000 23,900 72 2

3 80 110 0.96 0.60

4 100 200 0.97 0.60 0.10

5 125 305 0.97 0.61

6 150 530 0.81 0.42

8 200 910 0.81 0.42

10 250 1400 0.81 0.42 0.07

12 300 2000 0.81 0.42

14 350 2400 0.81 0.42


Class 900 (PN 150) Figure No. 4016/4016Y, 4316Y Stop valves, 4006/4006Y, 4306Y Stop-Check valves,4094/4094Y, 4394Y Check valves



Table 10 (con‘t.)Edward Cast Steel Globe Flow Coefficients

G

2.5 65 72 0.92 0.54

3 80 110 0.89 0.51 0.08

4 100 200 0.85 0.47

5 125 300 0.83 0.44

6 150 465 0.80 0.42

8 200 790 0.81 0.42 0.0710 250 1250 0.81 0.42

12 300 1750 0.81 0.42

14 350 2100 0.81 0.42

2.25 57.2 0.76 0.052 1.3 0.091 5230 592 53 5

2.75 69.9 0.92 0.063 1.5 0.10 8510 964 57 4

3.62 91.9 1.3 0.088 2.3 0.16 19,300 2190 75 5

4.37 111 1.2 0.080 2.2 0.15 28,600 3240 76 4

5.37 136 1.4 0.094 1.4 0.096 35,000 3960 62 2

7.00 178 1.6 0.11 1.4 0.097 59,300 6720 62 1

8.75 222 1.5 0.10 1.4 0.100 93,900 10,600 63 1

10.37 263 1.5 0.11 1.8 0.12 147,000 16,600 70 3

11.37 289 1.7 0.12 2.1 0.14 190,000 21,500 75 3

1.87 47.5 1.1 0.075 1.3 0.088 3370 382 49 6

2.25 57.2 1.4 0.093 1.6 0.11 5480 620 55 6

2.87 72.9 0.96 0.066 1.4 0.095 8280 938 51 5

3.62 91.9 1.4 0.097 2.2 0.15 16,600 1880 65 5

4.37 111 1.5 0.11 1.6 0.11 24,600 2790 66 3

5.75 146 2.2 0.15 2.2 0.15 49,800 5640 77 2

7.25 184 1.5 0.10 1.5 0.11 66,600 7540 65 2

8.62 219 1.6 0.11 1.7 0.11 97,700 11,100 67 3

2.5 65 47 0.97 0.60

3 80 68 0.97 0.61

4 100 110 0.96 0.60 0.10

5 125 175 0.97 0.60

6 150 310 0.81 0.42

8 200 530 0.81 0.42 0.07

10 250 845 0.81 0.42

12 300 1200 0.81 0.42

Class 1500 (PN 260) Figure No. 2016, 7516/7516Y Stop valves, 2006Y, 7506/7506Y Stop-Check valves,2094Y, 7594/7594Y Check valves







Figure 17Edward Cast Steel Globe Piston Lift Check Valve Performance Curves

G

Figure 17-A Figure 17-B


Table 11Edward Cast Steel Angle Valve Flow Coefficients

G

2.50 63.5 0.63 0.043 0.46 0.032 4940 559 40 5

3.00 76.2 0.79 0.054 0.55 0.038 6300 714 36 5

4.00 102 0.80 0.055 0.59 0.041 9460 1070 30 5

5.00 127 0.97 0.067 0.75 0.052 18,900 2140 39 4

6.00 152 1.2 0.084 0.96 0.066 33,200 3760 47 1

8.00 203 1.2 0.086 0.75 0.052 47,200 5340 38 1

10.00 254 1.2 0.081 0.70 0.048 78,200 8860 40 1

12.00 305 1.3 0.092 0.74 0.051 124,000 14,000 44 1

2.5 65 110 0.53 0.34 0.15

3 80 135 0.59 0.24

4 100 195 0.58 0.23

5 125 345 0.59 0.23

6 150 535 0.59 0.24 0.07

8 200 860 0.59 0.23

10 250 1500 0.59 0.23

12 300 2250 0.59 0.23



2.5 65 135 0.62 0.25

3 80 195 0.62 0.25

4 100 345 0.62 0.25

5 125 535 0.62 0.25 0.086 150 860 0.64 0.25

8 200 1500 0.63 0.25

10 250 2250 0.63 0.25

12 300 3300 0.63 0.25

14 350 3950 0.63 0.25

2.50 63.5 0.79 0.054 0.55 0.038 6300 714 51 5

3.00 76.2 0.80 0.055 0.59 0.041 9460 1070 54 5

4.00 102 0.97 0.067 0.75 0.051 18,800 2130 60 4

5.00 127 1.2 0.084 0.96 0.066 32,200 3760 68 4

6.00 152 1.2 0.086 0.75 0.052 47,200 5340 67 1

7.87 200 1.2 0.081 0.70 0.048 78,200 8860 64 1

9.75 248 1.3 0.092 0.74 0.051 124,000 14,000 66 1

11.75 298 1.5 0.10 0.88 0.061 196,000 22,200 72 1

12.87 327 1.6 0.11 0.90 0.062 237,000 26,900 73 1

3 80 180 0.62 0.24

4 100 325 0.62 0.25

5 125 485 0.63 0.25

6 150 790 0.63 0.25 0.08

8 200 1350 0.63 0.25

10 250 2100 0.63 0.25

12 300 2950 0.63 0.25

14 350 3600 0.63 0.25

16 400 6450 0.56 0.19

18 450 * * * 0.06

20 500 10,000 0.56 0.19

24 600 14,500 0.56 0.19

2.87 72.9 0.92 0.063 0.64 0.044 8980 1020 56 5

3.87 98.2 1.5 0.10 1.2 0.081 22,200 2510 75 5

4.75 121 1.2 0.083 1.0 0.072 31,200 3530 70 5

5.75 146 1.3 0.092 1.0 0.071 50,900 5770 78 3

7.50 190 1.4 0.099 1.0 0.071 86,600 9810 78 3

9.37 238 1.7 0.12 1.3 0.090 152,000 17,200 88 3

11.12 282 1.8 0.13 1.4 0.093 218,000 24,700 90 2

12.25 311 1.5 0.10 1.3 0.091 261,000 29,600 89 2

14.00 356 1.9 0.13 0.74 0.051 350,000 39,700 91 2

15.75 400 * * * * * * * *

17.50 444 1.7 0.11 0.76 0.052 553,000 62,600 92 3

21.00 533 2.6 0.18 1.1 0.073 940,000 106,000 109 3


Class 300 (PN 50) Figure No. 319/319Y/329/329Y, Stop valves, 303/303Y, Stop-Check valves, 391/391Y/393/393Y Check valves

Class 600 (PN 110) Figure No. 617/617Y, 619/619Y, 717Y Stop valves, 605/605Y, 607/607, 707Y Stop-Check valves,691/691Y, 695/695Y, 795Y Check valves




Table 11 (con’t.)Edward Cast Steel Angle Valve Flow Coefficients

G

2.5 65 115 0.59 0.22

3 80 180 0.57 0.210.06

4 100 320 0.55 0.19

5 125 475 0.54 0.18

6 150 690 0.63 0.25

8 200 1150 0.63 0.25

10 250 1850 0.63 0.25 0.08

12 300 2550 0.63 0.25

14 350 3100 0.63 0.25

16 400 5550 0.56 0.190.06

18 450 5350 0.54 0.19

20 500 * * * *

24 600 * * * *

2.25 57.2 0.75 0.052 0.58 0.040 5560 630 56 6

2.75 69.9 0.92 0.063 0.64 0.044 8980 1020 60 5

3.62 91.9 1.50 0.10 1.20 0.081 22,000 2490 86 5

4.37 111 1.30 0.093 1.20 0.083 33,000 3740 88 5

5.37 136 1.50 0.10 1.00 0.069 43,800 4970 77 3

7.00 178 1.60 0.11 0.99 0.068 73,900 8370 77 3

8.75 222 1.60 0.11 1.20 0.083 127,000 14,400 85 3

10.37 263 1.80 0.13 1.40 0.094 190,000 21,500 90 3

11.37 289 1.70 0.12 1.30 0.091 225,000 25,500 89 3

13.00 330 2.00 0.14 0.79 0.055 313,000 35,400 94 3

14.62 371 2.00 0.14 0.86 0.059 313,000 35,400 75 3

16.37 416 * * * * * * * *

19.62 498 * * * * * * * *

Class 1500 (PN 260) Figure No. 2017Y, 7517/7517Y Stop valves, 2007Y, 7507/7507Y Stop-Check valves,2095Y, 7595/7595Y Check valves

See note following paragraph 2.4.1, page G-28, for discussion of C factor.* Consult Edward Sales Representative




2.5 65 75.5 0.62 0.24

3 80 110 0.62 0.24

4 100 180 0.62 0.24

5 125 280 0.62 0.25 0.08

6 150 455 0.63 0.25

8 200 790 0.63 0.25

10 250 1250 0.64 0.25

12 300 1750 0.63 0.25

14 350 3400 0.40 0.10

16 400 3500 0.54 0.18

18 450 5450 0.50 0.15 0.05

20 500 5500 0.55 0.18

22 550 6900 0.55 0.18

24 600 * * * *

1.87 47.5 1.1 0.075 0.57 0.039 3610 409 53 6

2.25 57.2 1.3 0.091 0.69 0.048 5770 653 58 6

2.87 72.9 0.96 0.066 0.61 0.042 8810 998 55 6

3.62 91.9 1.4 0.097 0.97 0.067 17,600 1990 68 5

4.37 111 1.5 0.11 0.96 0.066 28,300 3210 76 2

5.75 146 2.3 0.16 1.4 0.096 59,000 6680 91 2

7.25 184 1.5 0.10 0.93 0.064 76,500 8660 74 2

8.62 219 1.8 0.13 1.3 0.088 127,000 14,400 87 3

9.50 241 2.1 0.14 0.89 0.061 204,000 23,100 115 3

10.87 276 2.1 0.14 0.85 0.058 204,000 23,100 88 3

12.25 311 2.5 0.17 1.00 0.069 347,000 39,300 118 3

13.50 343 2.5 0.17 1.00 0.070 351,000 39,800 98 3

14.87 378 2.5 0.17 0.97 0.067 429,000 48,600 99 3

* * * * * * * * * *

See note following paragraph 2.4.1, page G-28, for discussion of C factor. * Consult Edward Sales Representative

Class 2500 (PN 420) Fig. No. 3917/3917Y, 4417Y Stop valves, 3907/3907Y, 4407Y Stop-Check valves, 3995/3995Y, 4495Y Check valves


Figure 18Edward Cast Steel Angle Piston Lift Check Valve Performance Curves

G



Table 12Edward Cast Steel Flite-Flow Stop & Stop-Check Valve Flow Coefficients

G

Class 600/700 (PN 110/120) Figure No. 614, 614Y, 714Y Stop valves; 602, 602Y, 702Y Stop-Check valves; 692, 692Y, 792Y Piston Lift Check valves

3 80 270 0.52 0.02 0.08 2.87 72.9 0.9 0.06 0.52 0.036 12,400 1,400 77 4, 4

4 100 490 0.52 0.02 0.08 3.87 98.2 0.9 0.06 0.53 0.037 22,600 2,550 77 4, 4

6 150 1,100 0.52 0.02 0.08 5.75 146 0.7 0.05 0.50 0.034 48,500 5,490 75 4, 4

8 200 1,850 0.52 0.02 0.08 7.50 191 0.8 0.06 0.65 0.045 94,200 10,700 85 4, 4

10 250 2,900 0.52 0.02 0.08 9.37 238 1.0 0.07 0.84 0.058 167,000 18,900 97 4, 4

12 300 4,050 0.52 0.02 0.08 11.12 282 1.1 0.08 0.93 0.064 248,000 28,100 102 4, 4

14 350 4,050 0.52 0.02 0.08 11.12 282 1.1 0.08 0.93 0.064 248,000 28,100 102 4, 4

16 400 6,450 0.52 0.02 0.08 14.00 356 1.3 0.09 1.09 0.075 426,000 48,200 111 4, 4

PERF.

SIZE ALL STOP & CHECK VALVES CHECK VALVE COEFFICIENTS CURVES

NPS DN CV FL xT Ki d ∆PCO ∆PFL SPFL CFIG.19

3 80 295 0.52 0.20 0.08 3.00 76.2 0.8 0.06 0.44 0.030 12,400 1,400 70 4, 4

4 100 525 0.52 0.20 0.08 4.00 102 0.8 0.06 0.47 0.032 22,900 2,590 73 4, 4

6 150 1,200 0.52 0.20 0.08 6.00 152 0.7 0.05 0.53 0.037 54,500 6,170 77 4, 4

8 200 2,050 0.52 0.20 0.08 7.87 200 0.9 0.06 0.68 0.047 106,000 12,000 87 4, 4

10 250 3,100 0.52 0.20 0.08 9.75 248 1.0 0.07 0.85 0.059 182,000 20,600 98 4, 4

12 300 4,550 0.52 0.20 0.08 11.75 298 1.1 0.08 0.96 0.066 281,000 31,800 104 4, 4

14 350 4,550 0.52 0.20 0.08 11.75 298 1.1 0.08 0.96 0.066 281,000 31,800 104 4, 4

16 400 7,150 0.56 0.19 0.04 14.75 375 1.5 0.10 1.05 0.072 463,000 52,400 108 4, 4

20 500 11,000 0.52 0.20 0.08 18.25 484 1.4 0.10 0.96 0.066 677,000 76,700 104 1, 1

24 600 16,000 0.56 0.19 0.04 22.00 558 1.2 0.08 0.86 0.076 935,000 106,000 98 1, 2

Class 900/1100 (PN 150/190) Figure No. 4014, 4014Y, 4314Y Stop valves; 4002, 4002Y, 4302Y Stop-Check valves;4092, 4092Y, 4392Y Piston Lift Check valves

Class 300/400 (PN 50/68) Figure No. 1314, 1314Y, 1329, 1329Y Stop valves; 1302, 1302Y Stop-Check valves; 1390, 1390Y, 1392, 1392Y Piston Lift Check valves

2-1/2 65 110 0.53 0.34 0.02 2.50 64 0.9 0.06 0.91 0.063 6,750 765 55 1, 2

3 80 295 0.52 0.20 0.08 3.00 76 0.8 0.06 0.64 0.044 15,000 1,680 85 4, 4

4 100 525 0.52 0.20 0.08 4.00 102 0.8 0.06 0.66 0.046 27,000 3,070 86 4, 4

6 150 1,200 0.52 0.20 0.08 6.00 152 0.7 0.05 0.71 0.049 63,000 7,120 89 4, 4

8 200 2,100 0.52 0.20 0.08 8.00 200 0.9 0.06 0.67 0.046 109,000 12,400 87 4, 4

10 250 3,300 0.52 0.20 0.08 10.00 248 1.0 0.07 0.76 0.052 181,000 20,500 92 4, 4

12 300 4,750 0.52 0.20 0.08 12.00 305 1.1 0.08 0.87 0.060 279,000 31,500 99 4, 4

14 350 4,750 0.52 0.20 0.08 12.00 305 1.1 0.08 0.87 0.060 279,000 31,500 99 4, 4

16 400 4,750 0.53 0.22 0.09 12.00 305 1.5 0.10 0.87 0.060 279,000 31,500 99 4, 4




A, B

Table 12 (con’t.)Edward Cast Steel Flite-Flow Stop & Stop-Check Valve Flow Coefficients

G

3 80 165 0.52 0.200.08

4 100 270 0.52 0.20

6 150 625 0.61 0.23

8 200 1,100 0.61 0.23

10 250 1,750 0.61 0.22

12 300 2,450 0.61 0.220.05

14 350 3,550 0.53 0.17

16 400 3,550 0.60 0.22

18 450 5,550 0.55 0.18

20 500 5,550 0.54 0.18

24 600 8,100 0.60 0.22

2.25 57.2 1.1 0.08 0.71 0.049 8,850 1,000 89 4, 4

2.87 72.9 0.9 0.06 0.70 0.048 14,300 1,620 88 4, 4

4.37 111 1.5 0.11 0.84 0.058 36,300 4,110 97 1, 2

5.75 146 2.1 0.15 1.13 0.078 73,000 8,270 112 1, 2

7.25 184 1.5 0.10 0.80 0.055 97,600 11,100 95 1, 2

8.62 219 1.7 0.12 0.96 0.066 151,000 17,100 103 1, 3

10.37 263 1.9 0.13 1.17 0.081 242,000 27,400 115 1, 2

10.37 263 1.9 0.13 1.17 0.081 242,000 27,400 115 1, 2

13.00 330 2.3 0.16 1.38 0.095 412,000 46,700 124 1, 2

13.00 330 2.3 0.16 1.38 0.095 412,000 46,700 124 1, 2

15.69 399 2.4 0.17 1.61 0.111 648,000 73,400 134 1, 2

4 100 135 0.66 0.260.06

6 150 305 0.64 0.24

8 200 740 0.48 0.140.3

10 250 1,100 0.51 0.16

2.37 60.2 1.2 0.08 0.97 0.067 8,290 939 75 1, 2

3.37 85.6 1.5 0.10 1.75 0.121 25,300 2,870 113 1, 2

4.75 121 2.3 0.16 0.83 0.057 42,800 4,840 97 1, 2

5.75 146 1.7 0.12 0.86 0.059 63,600 7,200 98 1, 3

Class 2500/2900 (PN 460/490) Figure No. 3914Y, 4414Y Stop valves, 3902Y, 4402Y Stop-Check valves, 3992Y, 4492Y Check valvesClass 2900 (PN 490) Size 3 and 4 only with figure numbers the same as Class 2500 valves.

Series 4500 Figure No. 4514Y, 5014Y Stop valves, 4502Y, 5002Y Stop-Check valves, 4592Y, 5092Y Check valves

PERF.


NPS DN CV FL xT Ki d ∆PCO ∆PFL SPFL CFIG. 19



3 80 270 0.52 0.200.08

4 100 425 0.52 0.20

6 150 950 0.61 0.23

8 200 1,600 0.61 0.23

10 250 2,500 0.61 0.23

12 300 3,550 0.61 0.230.05

14 350 3,550 0.59 0.22

16 400 5,550 0.61 0.23

18 450 5,550 0.59 0.22

20 500 8,800 0.61 0.23

24 600 8,800 0.59 0.23 0.06

2.87 72.9 1.0 0.07 0.51 0.035 12,200 1,380 75 4, 4

3.62 91.9 1.0 0.07 0.62 0.043 21,200 2,400 82 4, 4

5.37 136 1.3 0.09 0.73 0.050 51,200 5,800 90 1, 3

7.00 178 1.5 0.10 0.74 0.051 87,800 9,940 91 1, 2

8.75 222 1.5 0.10 0.89 0.061 150,000 17,000 100 1, 2

10.37 263 1.7 0.12 1.01 0.070 225,000 25,500 107 1, 2

10.37 263 1.7 0.12 1.01 0.070 225,000 25,500 106 1, 2

13.00 330 1.8 0.12 1.09 0.075 366,000 41,500 110 1, 2

13.00 330 1.8 0.12 1.09 0.075 366,000 41,500 110 1, 2

16.37 416 2.2 0.15 1.46 0.101 673,000 76,200 128 1, 2

16.37 416 2.3 0.16 * * * * * *

Class 1500/1800 (PN 260/310) Figure No. 2014Y, 7514Y Stop valves; 2002Y, 7502Y Stop-Check valves; 2092Y, 7592Y Check valves


A, B

Table 12 (con’t.)Edward Cast Steel Flite-Flow Stop & Stop-Check Valve Flow Coefficients

PERF.


NPS DN CV FL xT Ki d ∆PCO ∆PFL SPFL CFIG. 19


12 300 2950 0.52 0.200.08

14 350 2950 0.52 0.20

9.50 241 1.7 0.12 0.85 0.059 172,600 19,500 97 4, 4

9.50 241 1.7 0.12 0.85 0.059 172,600 19,500 97 4, 4

Class 2000 (PN 340) Figure No. 2214Y, 3214Y Stop valves; 2002Y, 3202Y Stop-Check valves; 2292Y, 3292Y Check valves

A, B

Figure 19Cast Steel Flite-Flow Piston Lift Check Valve Performance Curves

G



Table 13Edward Cast Steel Tilting Disk Check Valve Flow Coefficients1

G

6.00 152 0.80 0.055 62,300 7,060 88 1

7.87 200 1.0 0.069 115,000 13,000 95 1

9.75 248 1.1 0.076 187,000 21,200 100 1

11.75 298 1.2 0.083 285,000 32,300 105 1

12.87 327 1.2 0.083 285,000 32,300 88 1

14.75 375 1.4 0.097 481,000 54,500 113 1

16.50 419 1.5 0.10 622,000 70,500 116 1

18.25 464 1.6 0.11 786,000 89,000 120 1

6 150 1110 0.57 0.20

8 200 1850 0.57 0.20

10 250 2850 0.57 0.20

12 300 4100 0.57 0.20

14 350 4050 0.56 0.20 0.05

16 400 6500 0.57 0.20

18 450 8100 0.57 0.20

20 500 9950 0.57 0.20


2.5 65 195 0.44 0.12 0.02

3 80 245 0.57 0.20

4 100 215 0.59 0.23

6 150 990 0.57 0.20

8 200 1700 0.57 0.20

10 250 2400 0.56 0.20 0.05

12 300 3450 0.56 0.20

14 350 3300 0.56 0.20

16 400 4950 0.56 0.20

18 450 4700 0.57 0.21

20 500 9150 0.57 0.20

2.25 57.2 1.0 0.069 12,200 1,380 123 1

2.87 72.9 0.60 0.041 12,200 1,380 75 1

3.87 98.2 0.80 0.055 12,200 1,380 41 1

5.75 146 0.80 0.055 56,800 6,430 87 1

7.50 190 0.80 0.055 97,000 11,000 88 2

9.37 238 0.90 0.062 145,000 16,400 84 2

11.12 282 1.1 0.076 233,000 26,400 96 1

12.25 311 1.3 0.090 233,000 26,400 79 1

14.00 356 1.3 0.090 360,000 40,800 94 1

15.75 400 1.5 0.10 360,000 40,800 74 1

17.50 444 1.2 0.083 713,000 80,800 119 1

2.5 65 195 0.44 0.12 0.02

3 80 245 0.52 0.17

4 100 225 0.57 0.22

6 150 970 0.51 0.16

8 200 1650 0.51 0.16

10 250 2400 0.54 0.18 0.05

12 300 3450 0.53 0.17

14 350 3400 0.56 0.20

16 400 5050 0.57 0.20

18 450 4900 0.56 0.20

24 600 10,500 0.56 0.20

2.25 57.2 1.0 0.069 12,200 1,380 123 1

2.75 69.9 0.60 0.041 12,200 1,380 82 1

3.62 91.9 0.70 0.048 12,200 1,380 47 1

5.37 136 0.90 0.062 56,800 6,430 100 1

7.00 178 0.90 0.062 97,000 11,000 101 2

8.75 222 0.90 0.062 145,000 16,400 96 2

10.37 263 1.1 0.076 233,000 26,400 110 1

11.37 289 1.2 0.083 233,000 26,400 92 1

13.00 330 1.3 0.090 360,000 40,800 108 1

14.62 371 1.4 0.097 360,000 40,800 86 1

19.62 498 1.5 0.10 824,000 93,400 109 1

Class 1500 (PN 260) Figure No. 1570Y, 2070Y



PERF.SIZE CHECK VALVE FLOW COEFFICIENTS CHECK VALVE COEFFICIENTS CURVES

NPS DN CV FL xT Ki d ∆PFL SPFL C FIG. 20

See note following paragraph 2.4.1, page G-28, for discussion of C factor.1 Crack open pressure drop ∆PCO values are generally less than 0.25 psi (0.01 bar).


Table 13 (con’t.)Edward Cast Steel Tilting Disk Check Valve Flow Coefficients1

G


PERF.SIZE CHECK VALVE FLOW COEFFICIENTS CHECK VALVE COEFFICIENTS CURVES

NPS DN CV FL xT Ki d ∆PFL SPFL C FIG. 20

2.5 65 125 0.47 0.13

3 80 195 0.44 0.12 0.01

4 100 245 0.57 0.20

6 150 655 0.50 0.15

8 200 990 0.57 0.20

10 250 1650 0.54 0.18 0.05

12 300 2400 0.53 0.17

14 350 3250 0.47 0.14

16 400 3450 0.57 0.20

18 450 5050 0.51 0.16

20 500 5000 0.56 0.20

1.87 47.5 2.4 0.17 12,200 1,380 178 1

2.25 57.2 1.0 0.069 12,200 1,380 123 1

2.87 72.9 0.60 0.041 12,200 1,380 75 1

4.37 111 0.40 0.028 26,500 3,000 71 1

5.75 146 0.80 0.055 56,700 6,420 87 2

7.25 184 0.90 0.062 97,000 11,000 94 2

8.62 219 0.50 0.034 156,000 17,700 107 1

9.50 241 1.3 0.090 233,000 26,400 131 1

10.87 276 1.1 0.076 233,000 26,400 100 1

12.25 311 1.3 0.090 360,000 40,800 122 1

13.50 343 1.3 0.090 360,000 40,800 101 1


6 150 420 0.43 0.11.03

8 200 675 0.45 0.12

3.76 95.5 0.70 0.048 21,900 2480 79 1

4.75 121 0.8 0.055 37,000 4190 84 1

See note following paragraph 2.4.1, page G-28, for discussion of C factor.1 Crack open pressure drop ∆PCO values are generally less than 0.25 psi (0.01 bar).

Class 4500 (PN 760) Figure No. 4570Y, 5070Y Check valves


Figure 20Tilting Disk Check Valve Performance Curves

G



Table 14 Edward Cast Steel Equiwedge Gate Valve Flow Coefficients

G

2.5 65 395 0.74 0.23 0.02 2.50 63.5

3.0 80 325 0.57 0.19 0.02 3.00 76.2

4.0 100 545 0.58 0.20 0.03 4.00 102

6.0 150 2350 0.38 0.08 0.02 6.00 152

2.5 65 270 0.88 0.33 0.02 2.25 57.2

3.0 80 340 0.60 0.20 0.03 2.87 72.9

4.0 100 570 0.40 0.18 0.02 3.87 98.2

2.5 65 380 0.77 0.25 0.02 2.50 63.5

3.0 80 610 0.44 0.10 0.02 3.00 76.2

4.0 100 1250 0.41 0.08 0.03 4.00 102

6.0 150 3250 0.40 0.07 0.02 6.00 152

8.0 200 5300 0.35 0.06 0.02 7.87 200

10.0 250 8550 0.34 0.06 0.01 9.75 248

12.0 300 12,000 0.31 0.05 0.01 11.75 298

14.0 350 14,000 0.32 0.05 0.01 12.87 327

16.0 400 18,500 0.32 0.05 0.01 14.75 375

18.0 450 25,500 0.30 0.05 0.01 16.50 419

20.0 500 30,500 0.31 0.05 0.01 18.25 464

22.0 550 36,500 0.30 0.05 0.01 20.12 511

24.0 600 46,500 0.30 0.05 0.01 22.00 559

26.0 650 53,500 0.30 0.05 0.01 23.75 603

28.0 700 62,500 0.29 0.04 0.01 25.50 648

2.5 65 385 0.76 0.25 0.02 2.50 63.5

3.0 80 365 0.55 0.16 0.02 2.90 73.7

4.0 100 625 0.53 0.16 0.03 3.83 97.3

6.0 150 2350 0.41 0.09 0.02 5.75 146

2.5 65 280 0.75 0.24 0.02 2.12 53.8

3.0 80 400 0.61 0.18 0.03 2.62 66.5

4.0 100 670 0.54 0.15 0.02 3.62 91.9

8x6x8 200x150x200 2650 0.33 0.07 0.03 7.87 200

10x8x10 250x200x250 4500 0.32 0.07 0.02 9.75 248

12x10x12 300x250x300 7100 0.32 0.06 0.02 11.75 298

14x12x14 350x300x350 9900 0.32 0.06 0.02 12.87 327

16x14x16 400x350x400 12,000 0.31 0.06 0.02 14.75 375

18x16x18 450x400x450 17,500 0.29 0.05 0.01 16.50 419

20x18x20 500x450x500 22,000 0.30 0.06 0.02 18.25 464

22x20x22 550x500x550 29,000 0.28 0.05 0.01 20.12 511

24x20x24 600x500x600 24,500 0.30 0.06 0.02 22.00 559

26x22x26 650x550x650 30,000 0.30 0.06 0.02 23.75 603

28x24x28 700x600x700 40,500 0.29 0.05 0.01 25.50 648

30x26x30 750x650x750 46,500 0.29 0.05 0.01 27.37 695

32x28x32 800x700x800 52,000 0.30 0.05 0.01 29.25 743

Class 600 (PN 110) Figure No. A1611 Stop valves

Class 900 (PN 150) Figure No. A1911, Stop valves

Class 600 (PN 110) Figure No. 1611/ 1611Y, 1711Y Stop valves Class 600 (PN 110) Figure No. 1611BY, 1711BY Stop valves

Class 900 (PN 150) Figure No. A1911Y Stop valves

Class 600 (PN 110) Figure No. A1611Y Stop valves

Regular Port Gate ValvesSize

NPS DN CV FL XT Ki d



Venturi Port Gate ValvesSize






G

2.5 65 380 0.63 0.17 0.02 2.25 57.2

3.0 80 455 0.44 0.11 0.03 2.87 72.9

4.0 100 990 0.42 0.09 0.02 3.87 98.2

6.0 150 2350 0.41 0.09 0.02 5.75 146

8.0 200 4200 0.37 0.07 0.02 7.50 190

10.0 250 6250 0.40 0.08 0.02 9.37 238

12.0 300 9500 0.36 0.07 0.02 11.12 282

14.0 350 12,000 0.35 0.06 0.02 12.25 311

16.0 400 15,000 0.35 0.06 0.02 14.00 356

18.0 450 19,500 0.33 0.06 0.02 15.75 400

20.0 500 26,000 0.35 0.06 0.02 17.50 444

22.0 550 28,000 0.38 0.07 0.02 19.25 489

24.0 600 38,000 0.32 0.05 0.01 21.00 533

26.0 650 45,000 0.32 0.05 0.01 22.75 578

28.0 700 52,500 0.31 0.05 0.01 24.50 622

8x6x8 200x150x200 2000 0.37 0.09 0.03 7.50 190

10x8x10 250x200x250 3500 0.35 0.08 0.02 9.37 238

12x10x12 300x250x300 5950 0.35 0.08 0.02 11.12 282

14x12x14 350x300x350 7700 0.39 0.09 0.03 12.25 311

16x14x16 400x350x400 10,000 0.35 0.07 0.02 14.00 356

18x16x18 450x400x450 14,000 0.32 0.06 0.02 15.75 400

20x18x20 500x450x500 18,000 0.32 0.06 0.02 17.50 444

22x20x22 550x500x550 25,000 0.31 0.06 0.02 19.25 489

24x20x24 600x500x600 23,000 0.31 0.06 0.02 21.00 533

26x22x26 650x550x650 28,000 0.31 0.06 0.02 22.75 578

28x24x28 700x600x700 33,500 0.31 0.06 0.02 24.50 622

30x26x30 750x650x750 38,000 0.32 0.06 0.02 26.25 667

32x28x32 800x700x800 48,000 0.29 0.05 0.01 28.00 711

Class 900 (PN 150) Figure No. 1911/ 1911Y, 14311Y Stop valves Class 900 (PN 150) Figure No. 1911BY, 14311BY Stop valves





Bold faced numerals are in U.S. customary units or dimensionless. Brown numerals are in metric units.

2.5 65 305 0.78 0.26 0.02 2.25 57.2

3.0 80 420 0.52 0.14 0.03 2.75 69.9

4.0 100 760 0.47 0.12 0.03 3.62 91.9

6.0 150 1650 0.54 0.15 0.04 5.37 136

8.0 200 3150 0.48 0.12 0.03 7.00 178

10.0 250 5500 0.40 0.08 0.02 8.75 222

12.0 300 6850 0.42 0.09 0.02 10.37 263

14.0 350 9700 0.40 0.08 0.02 11.37 289

16.0 400 12,000 0.39 0.08 0.02 13.00 330

18.0 450 15,000 0.37 0.07 0.02 14.62 371

20.0 500 18,500 0.37 0.07 0.02 16.37 416

22.0 550 23,000 0.37 0.07 0.02 18.00 457

24.0 600 27,000 0.37 0.08 0.02 19.62 498

Class 1500 (PN 260) Figure No. 11511/11511Y, 12011YStop valves

Class 1500 (PN 260) Figure No. 11511BY, 12011BYStop valves

8x6x8 200x150x200 1650 0.43 0.12 0.04 7.00 178

10x8x10 250x200x250 2950 0.41 0.11 0.03 8.75 222

12x10x12 300x250x300 4500 0.40 0.10 0.03 10.37 263

14x12x14 350x300x350 7050 0.37 0.08 0.02 11.37 289

16x14x16 400x350x400 8700 0.37 0.08 0.02 13.00 330

18x16x18 450x400x450 11,000 0.37 0.08 0.02 14.62 371

20x18x20 500x450x500 13,500 0.36 0.08 0.02 16.37 416

22x20x22 550x500x550 18,000 0.34 0.07 0.02 18.00 457

24x20x24 600x500x600 17,000 0.35 0.07 0.02 19.62 498

26x22x26 650x550x650 20,500 0.35 0.07 0.02 21.25 540

28x24x28 700x600x700 24,000 0.36 0.08 0.02 23.00 584

Table 14 (con’t.)Edward Cast Steel Equiwedge Gate Valve Flow Coefficients


Table 14 (con’t.)Edward Cast Steel Equiwedge Gate Valve Flow Coefficients

Table 15Edward Forged Steel Hermavalve Flow Coefficients

G



Venturi Port Gate ValvesSize



Class 2500 (PN 420) Figure No. 12511/ 12511Y, 14411YStop valves

2.5 65 150 0.78 0.50 0.02 1.87 47.5

3.0 80 230 0.58 0.18 0.04 2.25 57.2

4.0 100 340 0.59 0.19 0.04 2.87 72.9

6.0 150 910 0.61 0.19 0.05 4.37 111

8.0 200 1850 0.51 0.14 0.04 5.75 146

10.0 250 2950 0.48 0.12 0.03 7.25 184

12.0 300 4350 0.46 0.11 0.03 8.62 219

14.0 350 5150 0.47 0.12 0.03 9.50 241

16.0 400 7050 0.46 0.11 0.03 10.87 276

18.0 450 8950 0.46 0.11 0.03 12.25 311

20.0 500 11,500 0.45 0.11 0.03 13.50 343

22.0 550 14,000 0.45 0.11 0.03 14.87 378

24.0 600 17,500 0.43 0.10 0.03 16.25 413

Class 2500 (PN 420) Figure No. 12511B/ 12511BY, 14411BYStop valves

8x6x8 200x150x200 1000 0.44 0.12 0.04 5.75 146

10x8x10 250x200x250 1650 0.46 0.14 0.04 7.25 184

12x10x12 300x250x300 2750 0.43 0.11 0.03 8.62 219

14x12x14 350x300x350 3900 0.46 0.13 0.03 9.50 241

16x14x16 400x350x400 4850 0.44 0.12 0.03 10.87 276

18x16x18 450x400x450 6450 0.43 0.11 0.03 12.25 311

20x18x20 500x450x500 8200 0.44 0.12 0.03 13.50 343

22x20x22 550x500x550 11,500 0.39 0.10 0.03 14.87 378

24x20x24 600x500x600 10,500 0.39 0.10 0.03 16.25 413

26x22x26 650x550x650 13,000 0.39 0.09 0.02 17.62 448

28x24x28 700x600x700 16,000 0.39 0.09 0.03 19.00 483

REGULAR PORT HERMAVALVES Fig. No.15004/15104, 15008/15108, 16004, 16008

CV FL xT KiNPS DN0.05 150.75 20

1.00 25

1.50 40

2.00 50

2.50 65

0.464 11.80.612 15.5

0.815 20.7

1.338 34.0

1.687 42.8

2.125 54.0


REDUCED PORT HERMAVALVES Fig. No.15014/15114, 15018/15118, 16014, 16018

CV FL xT Ki d4.9 0.46 0.31 0.076.1 0.52 0.36 0.09

11 0.55 0.38 0.10

32 0.62 0.39 0.13

50 0.68 0.40 0.15

6.1 0.51 0.36 0.09

11 0.53 0.37 0.09

32 0.57 0.37 0.11

50 0.59 0.37 0.12


Figure 21Ratio of Specific Heats (k) for Some Gases

Figure 22ASaturated Water - Temperature, Pressure & Density

Figure 22BSaturated Water - Temperature, Pressure & Density

G

k = 1.3

k = 1.4

Ammonia Carbon Dioxide Dry Steam Methane Natural Gas

Air Carbon Monoxide Hydrogen Nitrogen Oxygen

Water Temp. °F 32 70 100 200 300 400 500 550 600 650 700 705

Vapor Pressure, pV 0.09 0.36 0.95 11.5 67 247 681 1045 1543 2208 3094 3206

Water Density, � 62.4 62.3 62.0 60.1 57.3 53.7 49.0 46.0 42.3 37.4 27.3 19.7

Water Temp. °C 0 25 50 100 150 200 250 300 350 370 374

Vapor Pressure, pV .006 .032 .123 1.01 4.76 15.6 39.8 85.9 165.4 211 221

Water Density, � 1000 997 988 958 917 865 799 712 574 452 315

(U.S. Units)

P = Pressure in psia, � = Density in lb./ft3

(Metric)

P = Pressure in Bar Absolute, � = Density in Kg/m3


Figure 23Density of Steam

Figure 24Density of Air

G

Figure 25Vapor Pressure of Liquid


Conversion of Measurement Units

G

Length1 in. = 25.4 mm 1 mile = 5280 ft1 in. = 2.54 cm 1 mile = 1.609 km1 in. = 0.0254 m 1 km = 3281 ft1 ft = 0.3048 m 1 m = 39.37 in.

Area1 in.2 = 645.2 mm2 1 m2 = 10.76 ft2

1 in.2 = 6.452 cm2 1 m2 = 1550 in.2

1 ft2 = 144 in.2

Volume1 in.3 = 16.39 cm3 1 m3 = 35.31 ft3

1 ft3 = 1728 in.3 1 m3 = 264.2 U.S. gal.1 U.S. gal. = 231 in.3 1 m3 = 220 Imp. gal.1 U.S. gal. = 0.1337 ft3 1 m3 = 1000 liters1 U.S. gal. = 0.8327 1 liter = 61.02 in.3

Imp. gal. 1 liter = 1000 cm 3

1 U.S. gal. = 3.7854 liters1 ft3 = 28.32 liters 1 ml = 1 cm3

Density1 lb/ft3 = 16.02 kg/m3

1 lb./ft3 = 0.01602 g/cm3

1 lb./in.3 = 1728 lb/ft3

density = specific gravity x reference densitydensity = 1/specific volume

Specific Volumespecific volume = 1/density

Temperature

T(°C) =T(°F -32)

1.8T(°F) = 1.8 T(°C) + 32T(°R) = T(°F) + 460T(°K) = T(°C) + 273T(°R) = 1.8 T(°K)

where:°C = degrees Celsius°F = degrees Fahrenheit°K = degrees Kelvin (absolute temperature)°R = degrees Rankine (absolute temperature)

Specific Gravity – Liquids

Gl =density of liquid

density of water at reference condition

Commonly used relations are:


=� (lb/ft3)

density of water at 60°F 62.38 (lb/ft3)and atmospheric pressure

and


=� (kg/m3)

density of water at 4°C 1000 (kg/m3)and atmospheric pressure

For practical purposes, these specific gravities maybe used interchangeably, as the reference densitiesare nearly equivalent.

Specific gravities are sometimes given with two tem-peratures indicated, e.g.,

Gl60°F , Gl

15.5°C , Gl 60°F/60°60°F 4°C

The upper temperature is that of the liquid whosespecific gravity is given, and the lower value indicates the water temperature of the reference den-sity. If no temperatures are shown, assume that thecommonly used relations apply.

For petroleum liquids having an “API degrees” spec-ification:

Gl 60°F/60° = 141.5131.5 + API degrees

Pressure1 Mpa = 145 psi 1 psi = 6895 Pa1 pond = 1 gf 1 psi = 6895 N/m2

1 std atm = 14.696 psi 1 Pa = 1 N/m2

1 std atm = 1.0133 bar 1 bar = 14.50 psi1 std atm = 1.0133 x 1 bar = 100,000 N/m2

105 N/m2 1 kgf/cm2 = 14.22 psi1 std atm = 760 torr absolute pressure =

gage pressure + atmospheric pressure

Specific Gravity – Gases

density of gas

Gg = (at pressure and temperature of interest)

density of air(at same pressure and temperature)

Because the relation between density, pressure andtemperature does not always behave in an ideal way(i.e., ideally, density is proportional to pressuredivided by temperature, in absolute units), use of theabove relation requires that the pressure and tem-perature of interest be specified. This means that thespecific gravity of a gas as defined may vary withpressure and temperature (due to “compressibility” effects).

Frequently, specific gravity is defined using:

Gg =molecular weight of gas

=Mw

molecular weight of air 28.96

If this relation is used to calculate density, one mustbe careful to consider “compressibility” effects.When the pressure and temperature of interest are ator near “standard” conditions (14.73 psia, 60°F) or“normal” conditions (1.0135 bar abs, 0°C), specific gravities calculated from either of the aboverelations are essentially equal.

Pressure Head1 foot of water at 60°F = 0.4332 psi

p(psi) =�(lb/ft3) x h(feet of liquid)

144

p(N/m2) =�(kg/m3) x h(meters of liquid)

0.1020

p(bar) =�(kg/m3) x h(meters of liquid)

10200

1 meter of water at 20°C = 9.790 kN/m2

1 meter of water at 20°C = 97.90 mbar1 meter of water at 20°C = 1.420 psi

Flow Rate• mass units1 lb/hr = 0.4536 kg/hr1 metric tonne/hr = 2205 lb/hr

• liquid volume units1 U.S. gpm = 34.28 BOPD

BOPD = barrels oil per day1 U.S. gpm = 0.8327 Imp. gpm1 U.S. gpm = 0.2273 m3/hr1 U.S. gpm = 3.785 liters/min1 m3/hr = 16.68 liters/min1 ft3/s = 448.8 U.S. gpm• mixed unitsw(lb/hr) = 8.021 q(U.S. gpm) x �(lb/ft3)w(lb/hr) = 500 q(U.S. gpm of water at 70°F or less)

In the following:STP (standard conditions) refers to 60°F, 14.73 psiaNTP (normal conditions) refers to 0°F, 1.0135 bar

abs

Gg =molecular weight of gas

=Mw

molecular weight of air 28.96

w(lb/hr) = 60 q(scfm of gas) x �(lb/ft3) at STPw(lb/hr) = q(scfh of gas) x �(lb/ft3) at STPw(lb/hr) = 4.588 q(scfm of gas) x Gg

w(lb/hr) = 0.07646 q(scfh of gas) x Gg

w(lb/hr) = 3186 q(MMscfd of gas) x Gg

Mmscfd = millions of standard cubic feet perday

w(kg/hr) = q(normal m3/hr of gas) x �(kg/m3 at NTP)w(kg/hr) = 1.294 q(normal m3/hr of gas) x Gg


3. Edward Valve Design Standards and Features

Engineering and research efforts – both analytical andexperimental – have contributed to innovative leader-ship by Edward Valves through the introduction orpractical development of some major industrial valv-ing features:

• Integral hardfaced seats in globe and angle valvesto permit compact valve designs and to resist erosionand wear.

• Impactor handwheels and handles to permit tightshutoff of manually operated globe and angle valves.

• Body-guided globe and angle valve disks to mini-mize wear and ensure alignment with seats for tightsealing.

• Inclined-bonnet globe valves with streamlined flowpassages to minimize pressure drop due to flow.

• Equalizers for large check and stop-check valves toensure full lift at moderate flow rates and to preventdamage due to instability.

• Compact pressure-seal bonnet joints to eliminatemassive bolted flanges on large, high-pressurevalves:

– First with wedge-shaped metal gaskets withsoft coatings, optimized over more than fourdecades to provide tight sealing in most ser-vices.

– Now, for the severest services, with com-posite gaskets using flexible graphite andspecial anti-extrusion rings to assure tightsealing, even with severe temperature tran-sients – overcomes need for field re-tighten-ing and eases disassembly for maintenance.

• Optimized stem-packing chambers and packing-material combinations to ensure tight stem sealing:

– First with asbestos-based materials andthen with asbestos-free materials.

• Hermetically sealed globe valves with seal-weldeddiaphragm stem seals to prevent stem leakage in crit-ical applications, including nuclear.

• Gate valves with flexible double-wedge construc-tion to ensure tight sealing at both low and high pres-sures and to prevent sticking difficulties when open-ing.

• Qualified stored-energy actuators for quick-closingvalves in safety-related nuclear-plant applications –and qualified valve-actuator combinations that areused in main-steam isolation service throughout theworld.

Edward valve expertise, acquired over more than 85years, is shared with national and internationalcodes-and-standards committees and other technicalsocieties and groups whose activities influenceindustrial valves. This cooperation has included par-ticipation in the development of every issue ofASME/ANSI B16.34 as well as most issues ofASME/ANSI B16.5 (Pipe Flanges and FlangedFittings), which applied to steel valves beforeASME/ANSI B16.34 was first issued in 1973. EdwardValves representatives have also been active in prepa-ration of ISO (International Standards Organization)standards. In addition, Edward representatives haveparticipated where appropriate with trade organiza-tions such as EPRI, INPO and various nuclear power-plant owners’ groups in addressing valve issues.

Edward valves are designed, rated, manufactured andtested in accordance with the following standardswhere applicable:

• ASME B16.34-1996 – Valves: flanged, threadedand welding end.

• ASME/ANSI B16.10-1992 – Face-to-face and end-to-end dimensions of valves.

• ASME B16.11 – Forged Fittings, Socket-weldingand Threaded.

• ASME Boiler and Pressure-Vessel Code –Applicable sections including Nuclear Section III.

• ASME and ASTM Material Specifications –Applicable sections.

• MSS Standard Practices – Where appropriate:Edward sealability acceptance criteria are equal to orbetter than those in MSS SP-61.

Users should note that ASME/ANSI B16.34-1996 hasa much broader scope than the previous editions.While this standard previously covered only flanged-end and butt welding-end valves, the 1988 editioncovered socket welding-end and threaded-end valvesas well. With this revision, the standard now address-es practically all types, materials and end configura-tions of valves commonly used in pressure-pipingsystems. All Edward valves in this catalog with a list-ed class number (e.g. Class 1500) comply withASME B16.34.

In addition to the standards listed, special require-ments such as those of API and NACE are consideredon application.

Edward valve-pressure ratings are tabulated in pres-sure-versus-temperature format. The temperaturesrange from -20°F (-29°C) to the maximum tempera-ture permitted for each specific design and pressure-boundary material. Typically, pressure ratingsdecrease with increasing temperature, approximatelyin proportion to decreases in material strength.

Valves in this catalog with a listed class number arerated in accordance with ASME B16.34-1996. Thisstandard establishes allowable working pressure rat-ings for each class number and material. These rat-ings also vary with class definitions as describedbelow.

Standard Class (Ref: Paragraph 2.1.1 of ASMEB16.34-1996) – These lowest ratings apply to allflanged-end valves as well as any threaded-end orwelding-end valves that do not meet the requirementsfor other classes. Typically, ratings for these valvesare consistent with ratings listed for flanges andflanged fittings of similar materials in ASME/ANSIB16.5-1988.

Special Class (Ref: Paragraph 2.1.2 of ASMEB16.34-1996) – These ratings apply to threaded-endor welding-end valves which meet all requirementsfor a Standard Class rating and in addition meet spe-cial nondestructive examination (NDE) requirements.Valve bodies and bonnets are examined by volumet-ric and surface examination methods and upgradedas required. Pressure ratings for Special Class valvesare higher than those for Standard Class valves (par-ticularly at elevated temperatures) because of theimproved assurance of soundness of pressureboundaries and because they are not subject to thelimitations of flanged and gasketed end joints.

Limited Class (Ref: Paragraph 2.1.3 of ASMEB16.34-1996) – These ratings apply only to thread-ed-end or welding-end valves in sizes 2-1/2 andsmaller, with generally cylindrical, internal-wettedpressure boundaries. Limited Class valves meet allrequirements for Standard Class valves, and bodydesigns must also satisfy special reinforcement rulesto compensate for irregularities in shape. Typically,the regions of minimum wall thickness in thesevalves are very localized, so minor plasticity in suchregions at high temperature will not adversely affectvalve geometry. Pressure ratings for Limited Classvalves are the same as those for Special Class valvesat lower temperatures, but Limited Class ratings arehigher at very high temperatures [above 900°F(482°C) for ferritic steels and above 1050° (565°C)for austenitic steels].

G3.1 Codes and Standards

3.2 Pressure Ratings


3. Edward Valve Design Standards and Features (con’t.)

It should be understood that flanged-end valves canbe supplied only as Standard Class valves withnumerically even pressure-class designations (300,600, 900, 1500, 2500), for consistency with matingflanges in piping systems. Threaded-end or welding-end valves can be supplied with the same designa-tions or as Class 4500 (for which there is no standardfor flanged-end connections). In addition, threaded-end or welding-end valves can be furnished withintermediate ratings or class designations (ref: para-graph 2.1.4 of ASME B16.34-1996), up to Class2500 for threaded ends and up to Class 4500 forwelding-ends. For example, Class 2680 welding-endUnivalves‚ can be applied in superheater-drain appli-cations that could not be satisfied with a Class 2500valve rating.

Series or CWPA few valves in this catalog with “Series” or “CWP”designations are designed, rated, manufactured andtested to Edward proprietary standards. These valvedesigns, qualified by decades of successful field per-formance, will provide safe and reliable service inapplications where an ASME/ANSI rating is notrequired by a piping code or other specifications.

These valve designs and ratings are generally, but notcompletely, in conformance with recognized nationalstandards (e.g., some employ high-strength materi-als not listed in standards). These valves have a his-tory of excellent performance and safety, and theymay be applied with confidence in applications whereASME/ANSI ratings are not required.

Notes:1. While Edward cast-steel valves describedin this catalog have even listed ratings (e.g.,1500), many designs provide more wallthickness than required in critical areas.Accordingly, welding-end valves can often beoffered with intermediate ratings (ref:Paragraph 6.1.4 of ASME B16.34-1996)moderately higher than the nominal class rat-ings. With appropriate revisions to testingprocedures, this can allow somewhat higherpressure ratings than those listed in the tab-

ulations. Consult Edward Valves and provideinformation on specific required design pres-sure and temperature conditions.

2. Pressure ratings for carbon steel (A105and A216 WCB) valves are tabulated for tem-peratures through 1000°F (538°C), which isconsistent with ASME B16.34-1996. Asnoted in that standard, these materials arepermissible but not recommended for pro-longed usage at above about 800°F (427°C).This precaution is related to the possibilitythat carbides in carbon steel may be convert-ed to graphite.

3. Other codes or standards applicable topiping systems may be more restrictive thanASME B16.34-1996 in limiting allowablepressures for valves. For example, ASMEB31.1-1995 (Power Piping) does not permituse of carbon steel (A105 and A216 WCB) atdesign temperatures above 800°F (427°C).Users must consider all codes or regulationsapplicable to their systems in selectingEdward valves.

4. The maximum tabulated temperatures atwhich pressure ratings are given for Edwardvalves are in some cases less than the maxi-mum temperatures given in ASME B16.34-1996 for valves of the same material. Themaximum tabulated temperatures in this cat-alog may reflect limitations of materials usedfor other valve parts (e.g., stems). Use ofEdward valves at temperatures above themaximum tabulated values may result indegradation and is not recommended.

The time-proven Edward pressure-seal bonnet sealsmore effectively as pressure increases, because thepressure forces the sealing elements into closer con-tact. Metal pressure-seal gaskets with soft platingemploy optimum contact angles and materials foreach applicable valve type, size and pressure-classrating. The gaskets yield initially under bolting loadand then under pressure, to provide excellent sealingcontact.

Newest designs for highest pressure/temperatureservices employ improved composite pressure-sealgaskets with flexible graphite rings. Edward leader-ship in proof-testing of flexible graphite stem pack-ings clearly showed the superior sealing characteris-tics of this material, and continued research led to thedevelopment of a test-proven bonnet closure thatprovides highest sealing integrity. The compositepressure-seal provides excellent sealing at low andhigh pressures, even under severe pressure/tempera-ture transients. It provides easier disassembly formaintenance, seals over minor scratches and doesnot depend on re-tightening under pressure after re-assembly.

G

Composite Pressure Seal Construction

Typical Pressure Seal Construction

3.3 Pressure-Seal Construction


3. Edward Valve Design Standards and Features (con’t.)

Integrity of seating surfaces on bodies, wedges anddisks in gate, globe, and check valves is essential fortight shutoff. Valve body seats must be hardfaced, andwedges and disks must either be hardfaced or madefrom an equivalent base material.

The standard seating material for most Edward valvesis cobalt-based Stellite 21,® which has excellentmechanical properties and an exceptional perfor-mance history. As compared to Stellite 6,® whichwas used in many early Edward valves and is stillused in many competitive valves, Stellite 21® ismore ductile and impact resistant. These propertiesprovide superior resistance to cracking of valve seat-ing surfaces in service.

Stellite 21 is used either as a complete part madefrom a casting (as in Univalve® disks and smallEquiwedge® gate valve wedges) or as a welded hard-surfacing deposit. Depending on valve size and type,hardsurfacing material is applied by a process thatassures highest integrity (PTA, MIG, etc.).

While the as-deposited (or as-cast) hardness ofStellite 21 is somewhat lower than that of Stellite 6,Stellite 21 has a work-hardening coefficient that isfive times that of Stellite 6. This provides essentiallyequivalent hardness after machining, grinding, andexposure to initial seating stresses. In addition, lowfriction coefficients attainable with Stellite 21 providevaluable margins in assuring valve operation withreasonable effort or actuator sizing.

The properties of Stellite 21 also provide an advan-tage to the user long after a valve leaves the Edwardplant. If a large valve seat is severely damaged in alocalized area, as may occur due to closing on foreignobjects, the seat may be repaired locally and refin-ished, in such cases, where a valve cannot be ade-quately preheated before welding, a Stellite 6 seatmay crack during the repair process – requiring eitherremoval of the valve from the line or in situ removalreplacement of the complete seat.

Some Edward valves have used solid disks made ofhardened ASTM A-565 Grade 616 or MSI 615 stain-less steel. This corrosion-resistant alloy has beenproven in seating and erosion tests and in service.This material can be furnished in certain valves fornuclear-plant services where reduced cobalt is desir-able. Similar iron-base trim materials are used inproduction of certain standard valves. Extensiveresearch on other cobalt-free valve trim materials hasalso identified other alloys which provide good per-formance under many service conditions. ConsultEdward Valves about any special trim requirements.

®Registered Trademark – Stoody Co.

Stem sealing is an extremely important valve perfor-mance feature, since seal leakage can represent ener-gy loss, a loss of product and a potential environ-mental or safety hazard. Consequently, Edward stopand stop-check valves employ stem packings thathave been qualified by extensive testing.

The search for improved sealing performance was aprimary reason for seeking out new stem-packingmaterials to replace asbestos-based packings. Thedemand of many valve users to discontinue use ofasbestos due to health risks was an important sec-ondary reason. Since there are no simple laboratorytests that will predict sealing performance based onmeasurable properties of packing materials, hundredsof tests have been necessary with various packings invalves or valve mockups.

Some packings required frequent adjustments due towear, extrusion or breakdown, and some could not bemade to seal at all after relatively brief testing. Allstandard Edward stop and stop-check valves nowemploy flexible graphite packing which providesexcellent stem sealing. However, the key to its suc-cess involves retaining the graphitic material withspecial, braided end rings to prevent extrusion.Various end rings are used, depending on the valvepressure class and expected service-temperaturerange. All Edward valves assembled since January1986 have been asbestos-free.

See V-REP 86-2 for more information.

G

3.4 Hardfacing 3.5 Valve-Stem Packing


4. Miscellaneous Technical Data

For further guidance on selection, shipping and storage, installation, operation, andmaintenance of valves, readers are referred to the following documents:

MSS Valve User GuideMSS SP-92

Available from:Manufacturers Standardization Society of theValve and Fittings Industry, Inc.127 Park Street N.E.Vienna, Virginia 22180

Aging and Service Wear of CheckValves Used in Engineering Safety-Feature Systems of Nuclear PowerPlants

Nureg/CR-4302Volume 1Ornl-6193/V1Volume 1. Operating Experience andFailure Identification

Available from:Superintendent of DocumentsU.S. Government Printing OfficeP.O. Box 37082Washington, D.C. 20013-7982

And from:National Technical Information ServiceSpringfield, Virginia 22161EPRI Report No. NP 5479Application Guidelines for Check Valvesin Nuclear Power Plants

Available from:Electric Power Research InstituteResearch Reports CenterP.O. Box 50490Palo Alto, CA 94303

G

4.1 Edward Technical Articles

NUMBER TITLE

Copies of the above Technical Articles are available upon request.

V-REP 74-3 A Hermetically Sealed Valve for Nuclear Power Plant Service

V-REP 75-5 Development of the Edward Equiwedge Gate Valve

V-REP 78-3 Nuclear Containment of Postulated Feedwater Linebreak

V-REP 78-4 Quick-Closing Isolation Valves − The Equiwedge Alternative

V-REP 79-4 Valve Clamp Ring Stress Analysis

V-REP 80-1 Univalve Evolution − Another Advance

V-REP 80-3 The Type A Stored Energy Actuator − Development and Qualification

V-REP 81-1 Model for Check Valve/Feedwater System Waterhammer Analysis

V-REP 81-2 Minimizing Use of Cobalt and Strategic Materials in Valves

V-REP 82-1 Asbestos-Free Stem Packing for High Temperature Valves

V-REP 82-2 Quick-Closing Equiwedge Isolation Valves Global Qualification

V-REP 84-1 Avoiding Aluminum Nitride Embrittlement in Steel Castings for Valve Components

V-REP 85-2 Quick Closing Equiwedge Isolation Valves Global Qualification

V-REP 86-2 Tests of Asbestos-Free Stem Packings for Valves for Elevated Temperature Service

V-REP 90-1 Design Basis Qualification of Equiwedge Gate Valves for Safety-Related MOV Applications

V-REP 90-2 Flow Performance, Stability and Sealability of Piston Lift and Tilting Disk Check Valves

V-REP 90-3 Edward Cast Steel, Pressure-Seal Valves: Research and Development

V-REP 91-1 Pressure Locking and Overpressurization of Double Seated Valves

V-REP 92-1 Check and Stop-Check Valves for High Turndown Applications

V-REP 93-1 PressurCombo

V-REP 95-1 Hermavalve-A Zero Emissions Valve

4.2 Sources for Additional Information


Edward Valves

H Tables & Charts Section H

EV-1004th Edition

Material Chemical Analysis (ASTM) for Edward Valves

This ASTM specification data is provided for customer information. Thedata was based on information available at time of printing and may notreflect the latest ASTM revision. Edward suggests referring to theapplicable specification for complete information or contacting yourEdward Valves sales representative.

*The equivalent Edward valve material specification for valve bodies meets all of therequirements of the referenced ASTM Specification; additionally Edward restrictscertain elements (i.e. carbon, manganese) to tighter allowable ranges to enhanceweldability.

H

MATERIAL ELEMENTS PERCENTAGE*CAST FORGED

Carbon 0.30 max. 0.22 max.Manganese 1.00 max. .60 to 1.05Phosphorus 0.04 max. 0.04 max.

Sulfur 0.045 max. 0.05 max.Silicon 0.60 max. 0.35 max.

Carbon 0.20 max. 0.10 to 0.15Manganese 0.50 to 0.80 0.30 to 0.80Phosphorus 0.04 max. 0.04 max.

Sulfur 0.045 max. 0.04 max.Silicon 0.60 max. 0.50 to 1.00

Chromium 1.00 to 1.50 1.00 to 1.50Molybdenum 0.45 to 0.65 0.44 to 0.65

Carbon 0.18 max. 0.15 max.Manganese 0.40 to 0.70 0.30 to 0.60Phosphorus 0.04 max. 0.04 max.

Sulfur 0.045 max. 0.04 max.Silicon 0.60 max. 0.50 max.


Carbon 0.12 max. 0.08-0.12 max.Manganese 0.30-0.60 max. 0.30-0.60 max.Phosphorus 0.02 max. 0.02 max.

Sulfur 0.018 max. 0.01 max.Silicon 0.20-0.50 0.20-0.50 max.

Chromium 8.0-9.5 8.00-9.50Molybdenum 0.85-1.05 0.85-1.05Columbium 0.060-0.10 0.060-0.10Venadium 0.18-0.25 0.18-0.25Nitrogen 0.030-0.070 0.030-0.070Nickel 0.40 max. 0.40 max.

Carbon 0.03 max. 0.08 max.Manganese 1.50 max. 2.00 max.Phosphorus 0.04 max. 0.04 max.

Nickel 9.00 to 13.00 10.00 to 14.00Sulfur 0.04 max. 0.03 max.Silicon 1.50 max. 1.00 max.


Carbon 0.15 max. 0.15 max.Manganese 1.00 max. 1.25 max.Phosphorus 0.04 max. 0.06 max.

Sulfur 0.03 max. 0.15 min.Silicon 1.00 max. 1.00 maxNickel 0.50 max.

Chromium 11.50 to 13.50 12.00 to 14.00Molybdenum 0.60 max.

61900 62300Copper remainder remainder remainder

Aluminum 10.00 to 11.50 8.50 to 10.00 8.50 to 11.00Iron 3.00 to 5.00 3.00 to 4.50 2.00 to 4.00Tin 0.60 max. 0.60 max.

Lead 0.80 max. Manganese 0.50 max. 0.50 max.

Zinc 0.02 max. Silicon 0.25 max.

Nickel & Cobalt 1.50 max. 1.00 max.

Carbon Steel (Body)

Cast - ASTM A216 Grade WCBForged - ASTM A105

1-1/4 Chromium-Molybdenum Steel (Body)

Cast - ASTM A217 Grade WC6Forged - ASTM A182 Grade F11

2-1/4 Chromium-Molybdenum Steel (Body)Cast - ASTM A217 Grade WC9 Forged - ASTM A182 Grade F22

9 Chromium, 1 Molybdenum Steel BodyCast - ASTM A-217 Grade C12AForged - ASTM A-182 Grade F91

Austenitic Stainless Steel (Body)Cast - ASTM A-351 Grade CF8MForged - ASTM A-182 Grade F316

Martensitic Stainless Steel (Stems)

Bolted Bonnet T416Cast Valves - ASTM A182 Grade F6aUnivalves - A-479 T-410 Cl 3

Aluminum Bronze (Yoke Bushings)

Cast ValvesASTM B 148 Alloy 95400

Forged ValvesASTM B150 Alloy 61900-62300

MATERIAL ELEMENTS PERCENTAGE*

Carbon 0.37 to 0.49Manganese 0.65 to 1.10Phosphorus 0.035 max.

Sulfur 0.04 max.Silicon 0.15 to 0.35

Chromium 0.75 to 1.20Molybdenum 0.15 to 0.25

Chromium 25.00 to 29.00Manganese 1.00 max.Molybdenum 5.00 to 6.00

Nickel 1.75 to 3.75Iron 3.00

Boron .007 max.Carbon 0.20 to 0.30Silicon 1.00

Chromium-Molybenum (Bolting)

ASTM A193 Grade B7Forged - ASTM A105

Hard Surfacing for Seats and Disks

A732 Grade 21 & Stellite 21®

Edward Valves • 1900 South Saunders Street, Raleigh, North Carolina 27603 • 1-800-225-6989 • 1-919-832-0525 • Fax 1-919-831-3369 H2

ASME B16.34 – 1996 Pressure/Temperature Ratings

H

-20 to 100 4225 4225 6250 6700 6700 11,250 11,250200 4225 4225 6250 6700 6700 11,250 11,250300 4225 4225 6250 6700 6700 11,250 11,250400 4225 4225 6250 6700 6700 11,250 11,250500 4225 4225 6250 6700 6700 11,250 11,250

A105 600 4015 4015 5940 6370 6370 10,690 10,690(3) (5) 650 3940 3940 5825 6245 6245 10,485 10,485

700 3910 3910 5780 6195 6195 10,405 10,405750 3550 3550 5250 5630 5630 9450 9450800 2895 2895 4285 4595 4595 7715 7715850 1880 1880 2785 2985 2985 5015 5015900 1205 1205 1785 1915 1915 3215 3215950 745 725 1110 1190 1145 2065 1930

1000 390 360 600 650 575 1195 965-20 to 100 4225 4225 6250 6700 6700 11,250 11,250

200 4225 4225 6250 6700 6700 11,250 11,250300 4175 4175 6180 6625 6625 11,120 11,120400 4080 4080 6035 6470 6470 10,865 10,865500 4055 4055 6000 6430 6430 10,800 10,800600 4055 4055 6000 6430 6430 10,800 10,800650 4035 4035 5965 6395 6395 10,735 10,735

A182 700 4005 4005 5930 6355 6355 10,670 10,670F22 750 3885 3885 5750 6165 6165 10,350 10,350

(4) (5) 800 3790 3790 5605 6010 6010 10,095 10,095850 3620 3620 5355 5740 5740 9645 9645900 3380 3380 5000 5360 5360 9000 9000950 2720 2655 4075 4385 4215 7555 7070

1000 1980 1835 3040 3290 2910 6050 48851050 1330 1235 2205 1950 4065 32801100 830 770 1385 1225 2545 20551150 525 485 865 765 1590 12851200 315 290 520 460 955 770

NOTES: 1. Limited Class, Sizes 2-1/2 and smaller, all types ends except flanges. Threaded ends limited to Size 1 and smaller and 1000° F maximum.2. Special Class, Sizes 3 and 4, buttwelding ends only.3. Permissible but not recommended for prolonged usage above approx. 800°F.4. Permissible but not recommended for use above 1100°F.5. Shaded ratings may require special trim and packing, consult your Edward Valves sales representative for applications in these ranges.6. The 10,800 repeats because ASME B16.34 rating rules do not permit increasing pressure ratings at higher temperatures.

PRESSURE (PSIG)CLASS 1690 CLASS 2500 CLASS 2680 CLASS 4500

MATERIAL TEMP. SIZES°F SIZES SIZES 1/2 thru 1 SIZES SIZES SIZES SIZES

1/2 thru 2-1/2 3 & 4 THREADED 1/2 thru 2-1/2 3 & 4 1/2 thru 2-1/2 3 & 4(1) (2) (1) (1) (2) (1) (2)

Forged Steel Univalves


ASME B16.34 – 1996 Pressure/Temperature Ratings (METRIC)

H NOTES: 1. Limited Class, Sizes DN 65 and smaller, all types ends except flanges. Threaded ends limited to Size DN 25 and smaller and 538° C maximum.2. Special Class, Sizes DN 80 and DN 100, buttwelding ends only.3. Permissible but not recommended for prolonged usage above approx. 427°C.4. Permissible but not recommended for use above 593°C.5. Shaded ratings may require special trim and packing, consult your Edward Valves sales representative for applications in these ranges.

-29 to 38 291.4 291.4 431.0 462.1 462.1 775.9 775.950 291.4 291.4 431.0 462.1 462.1 775.9 775.9

100 291.4 291.4 431.0 462.1 462.1 775.9 775.9150 291.4 291.4 431.0 462.1 462.1 775.9 775.9200 291.4 291.4 431.0 462.1 462.1 775.9 775.9250 291.4 291.4 431.0 462.1 462.1 775.9 775.9

A105 300 281.0 281.0 415.6 445.7 445.7 748.1 748.1(3) (5) 350 271.2 271.2 401.0 429.9 429.9 721.8 721.8

375 266.2 266.2 393.5 421.8 421.8 708.4 708.4400 243.0 243.0 359.4 385.4 385.4 646.9 646.9425 202.4 202.4 299.5 321.2 321.2 539.2 539.2450 140.9 140.9 208.6 223.6 223.6 375.7 375.7475 95.2 95.2 141.0 151.3 151.3 254.0 254.0500 62.8 61.9 93.3 100.1 98.1 171.0 165.0525 38.2 36.4 57.6 62.0 57.7 110.0 97.2538 26.9 24.8 41.4 44.8 39.7 82.4 66.6

-29 to 38 291.4 291.4 431.0 462.1 462.1 775.9 775.950 291.4 291.4 431.0 462.1 462.1 775.9 775.9

100 291.0 291.0 430.5 461.4 461.4 774.8 774.8150 287.8 287.8 426.0 456.7 456.7 766.5 766.5200 281.9 281.9 417.0 447.1 447.1 750.7 750.7250 280.0 280.0 414.2 443.9 443.9 745.6 745.6300 279.7 279.7 413.8 443.4 443.4 744.8 744.8350 277.8 277.8 410.8 440.4 440.4 739.3 739.3

A182 375 275.0 275.0 407.2 436.4 436.4 732.8 732.8F22 400 267.7 267.7 396.2 424.7 424.7 713.1 713.1

(4) (5) 425 261.8 261.8 387.2 415.1 415.1 697.3 697.3450 251.5 251.5 372.1 398.8 398.8 670.1 670.1475 237.4 237.4 351.2 376.5 376.5 632.3 632.3500 204.0 201.1 304.0 326.6 319.1 556.9 535.5525 160.0 152.6 242.5 261.6 242.1 465.0 406.2538 136.2 126.2 209.7 226.3 200.2 416.1 336.0550 116.8 108.3 194.0 171.6 357.0 288.2575 80.0 74.3 132.8 117.5 244.7 197.5600 52.2 48.4 86.9 76.9 159.7 129.0625 34.2 31.6 56.3 49.8 103.5 83.6649 21.7 20.0 35.9 31.7 65.9 53.1

PRESSURE (BAR)PN 290 PN 420 PN 460 PN 760

MATERIAL TEMP. SIZES°C SIZES SIZES 15 thru 25 SIZES SIZES SIZES SIZES

15 thru 65 80 & 100 THREADED 15 thru 65 80 & 100 15 thru 65 80 & 100(1) (2) (1) (1) (2) (1) (2)

Forged Steel Univalves 1 bar = 100 kPa = 14.50 psi


-20 to 100 4225 4225 6250 6700 6700 11250 11250200 4225 4225 6250 6700 6700 11250 11250300 4225 4225 6250 6700 6700 11250 11250400 4225 4225 6250 6700 6700 11250 11250500 4225 4225 6250 6700 6700 11250 11250600 4225 4225 6250 6700 6700 11250 11250650 4225 4225 6250 6700 6700 11250 11250700 4130 4130 6110 6550 6550 10995 10995750 4105 4105 6070 6505 6505 10930 10930

A182 800 4055 4055 6000 6430 6430 10800 10800F91 850 3815 3815 5645 6050 6050 10160 10160

900 3380 3380 5000 5360 5360 9000 9000950 2725 2660 4075 4385 4215 7555 7070

1000 2555 2370 3925 4240 3755 7555 63101050 2555 2370 4240 3755 7555 63101100 2290 2125 3805 3370 7005 56551150 1695 1570 2805 2485 5180 41801200 1095 1015 1820 1610 3345 2700

ASME B16.34a – 1998 Pressure/Temperature Ratings

H

NOTES: 1. Limited Class, Sizes 2-1/2 and smaller, all types ends except flanges. Threaded ends limited to Size 1 and smaller and 1000° F maximum.2. Special Class, Sizes 3 and 4, buttwelding ends only.3. The 7555 repeats becuase ASME B16.34 rating rules do not permit increasing pressure ratings at higher pressures.






ASME B16.34a – 1998 Pressure/Temperature Ratings (METRIC)

H

NOTES: 1. Limited Class, Sizes DN 65 and smaller, all types ends except flanges. Threaded ends limited to Size DN 25 and smaller and 538° C maximum.2. Special Class, Sizes DN 80 and DN 100, buttwelding ends only.

-29 to 38 291.4 291.4 431.0 462.1 462.1 775.9 775.950 291.4 291.4 431.0 462.1 462.1 775.9 775.9

100 291.4 291.4 431.0 462.1 462.1 775.9 775.9150 291.4 291.4 431.0 462.1 462.1 775.9 775.9200 291.4 291.4 431.0 462.1 462.1 775.9 775.9250 291.4 291.4 431.0 462.1 462.1 775.9 775.9300 291.4 291.4 431.0 462.1 462.1 775.9 775.9350 289.8 289.8 428.7 459.6 459.6 771.6 771.6375 284.6 284.6 421.0 451.3 451.3 757.6 757.6400 283.0 283.0 418.4 448.6 448.4 753.4 753.4

A182 425 279.9 279.9 414.1 443.9 443.8 745.5 745.4F91 450 265.8 265.8 393.2 421.5 421.4 707.8 707.8

475 240.9 240.9 356.4 382.1 382.0 641.5 641.5500 204.2 201.3 304.0 326.4 319.1 556.9 535.5525 181.6 172.6 275.4 297.1 273.6 521.0 459.3

538/550 176.2 163.4 270.1 292.8 259.0 521.0 435.2575 170.0 157.7 282.5 249.9 508.1 419.8600 148.1 137.4 246.1 217.8 452.9 365.6625 111.1 102.9 184.2 162.9 339.5 274.0649 75.5 70.0 125.3 111.0 230.7 186.2







H

-20 to 100 4225 4225 6250 6700 6700 11250 11250200 3885 3885 5750 6165 6165 10350 10350300 3515 3515 5200 5575 5575 9360 9360400 3210 3210 4750 5090 5090 8550 8550500 2990 2990 4430 4750 4750 7970 7970600 2840 2840 4195 4495 4495 7555 7555650 2775 2775 4105 4400 4400 7395 7395700 2725 2725 4035 4325 4325 7265 7265750 2680 2680 3965 4250 4250 7135 7135

A182 800 2655 2655 3930 4215 4215 7070 7070F316 850 2625 2625 3885 4165 4165 6990 6990(3) 900 2610 2610 3855 4135 4135 6945 6945

950 2580 2580 3815 4090 4090 6870 68701000 2370 2370 3505 3755 3755 6310 63101050 2370 2370 3755 3755 6310 63101100 2200 2145 3545 3410 6115 57201150 1795 1665 2985 2640 5495 44351200 1400 1300 2340 2070 4300 34701250 1115 1035 1860 1645 3425 27651300 885 820 1470 1300 2705 21851350 730 675 1210 1070 2230 18001400 570 530 950 840 1755 14151450 440 410 740 655 1355 10951500 315 290 520 460 955 770

NOTES: 1. Limited Class, Sizes 2-1/2 and smaller, all types ends except flanges. Threaded ends limited to Size 1 and smaller and 1000° F maximum.2. Special Class, Sizes 3 and 4, buttwelding ends only.3. Shaded ratings may require special trim and packing, consult your Edward Valves sales representative for applications in these ranges.4. The 6310 repeats because ASME B16.34 rating rules do not permit increasing pressure ratings at higher pressures.







H

NOTES: 1. Limited Class, Sizes DN 65 and smaller, all types ends except flanges. Threaded ends limited to Size DN 25 and smaller and 538° C maximum.2. Special Class, Sizes DN 80 and DN 100, buttwelding ends only.3. Shaded ratings may require special trim and packing, consult your Edward Valves sales representative for applications in these ranges.


-29 to 38 291.4 291.4 431.0 462.1 462.1 775.9 775.950 286.2 286.2 423.4 454.0 454.0 762.2 762.2

100 264.9 264.9 392.0 420.3 420.3 705.6 705.6150 242.0 242.0 358.0 383.8 383.8 644.4 644.4200 223.1 223.1 330.1 353.7 353.7 594.1 594.1250 208.9 208.9 309.5 331.8 331.8 556.9 556.9300 198.8 198.8 293.8 314.9 314.9 529.0 529.0350 190.6 190.6 281.9 302.2 302.2 507.8 507.8375 187.5 187.5 277.6 297.6 297.6 499.8 499.8400 184.8 184.8 273.4 293.0 293.0 491.9 491.9

A182 425 183.2 183.2 271.2 290.8 290.8 487.9 487.9F316 450 181.4 181.4 268.4 287.8 287.8 483.0 483.0(3) 475 180.3 180.3 266.4 285.7 285.7 479.8 479.8

500 178.7 178.7 264.1 283.2 283.2 475.7 475.7525 170.1 170.1 251.6 269.6 269.6 452.9 452.9

538/550 163.4 163.4 241.7 259.0 259.0 435.2 435.2575 159.5 158.2 254.0 250.9 430.6 421.3600 145.0 140.0 235.2 222.4 411.5 373.2625 120.0 111.3 199.6 176.6 367.4 296.5650 95.8 88.9 160.1 141.6 294.1 237.4675 78.1 72.5 130.3 115.2 239.8 193.6700 63.6 58.9 105.7 93.5 194.5 157.1725 53.1 49.2 88.1 77.9 162.3 131.0750 43.3 40.2 72.0 63.6 132.8 107.1775 34.5 32.1 57.7 51.0 106.1 85.7800 26.6 24.6 44.4 39.3 81.3 65.7816 21.7 20.0 35.9 31.7 65.9 53.1






H NOTES:1. Limited Class, Sizes 2-1/2 and smaller, all types ends except flanges. Threaded ends limited to Size 1 and smaller and 1000° F maximum.2. Special Class, Sizes 3 and 4, buttwelding ends only.3. Services in shaded areas may require special trim and packing, consult your Edward Valves sales representative for applications in these ranges.4. A182 F347 material is not to be used over 1000°F.5. The 6310 repeats because ASME B16.34 rating rules do not permit increasing pressure ratings at higher pressures.




-20 to 100 4225 4225 6250 6700 6700 11,250 11,250200 4035 4035 5965 6395 6395 10,735 10,735300 3695 3695 5465 5860 5860 9835 9835400 3475 3475 5145 5515 5515 9255 9255500 3355 3355 4965 5320 5320 8935 8935600 3230 3230 4775 5120 5120 8600 8600650 3170 3170 4690 5030 5030 8440 8440700 3110 3110 4600 4930 4930 8275 8275750 3090 3090 4570 4900 4900 8230 8230800 3065 3065 4530 4855 4855 8155 8155

A182 850 3050 3050 4510 4835 4835 8115 8115F347/F347H 900 3030 3030 4485 4810 4810 8075 8075

(3) (4) 950 2660 2660 3930 4215 4215 7070 70701000 2370 2370 3505 3755 3755 6310 63101050 2370 2370 3755 3755 6310 63101100 2325 2270 3745 3600 6310 60451150 2080 1930 3455 3060 6310 51451200 1300 1205 2165 1915 3985 32151250 940 870 1560 1380 2870 23151300 705 655 1170 1035 2150 17351350 525 485 865 765 1590 12851400 420 390 690 610 1275 10301450 315 290 520 460 955 7701500 260 240 430 380 800 645

-20 to 100 3770 3770 5570 5970 5970 10,030 10,030200 3185 3185 4710 5050 5050 8480 8480300 2850 2850 4215 4520 4520 7585 7585400 2595 2595 3840 4115 4115 6910 6910

A182 500 2400 2400 3550 3805 3805 6390 6390F316L 600 2265 2265 3350 3590 3590 6025 6025

650 2195 2195 3250 3485 3485 5850 5850700 2150 2150 3180 3410 3410 5720 5720750 2100 2100 3110 3335 3335 5595 5595800 2070 2070 3060 3280 3280 5505 5505850 2020 2020 2990 3205 3205 5385 5385




H



15 thru 65 80 & 100 THREADED 15 thru 65 80 & 100 15 thru 65 80 &100(1) (2) (1) (1) (2) (1) (2)

NOTES:1. Limited Class, Sizes DN 65 and

smaller, all types ends exceptflanges. Threaded ends limited toSize DN 25 and smaller and 538° Cmaximum.

2. Special Class, Sizes DN 80 and DN100, buttwelding ends only.

3. Services in shaded areas may require special trim and packing,consult your Edward Valves salesrepresentative for applications inthese ranges.

4. A182 F347 material is not to be used over 538°C.


-29 to 38 291.4 291.4 431.0 462.1 462.1 775.9 775.950 288.5 288.5 426.7 457.4 457.4 768.0 768.0

100 275.5 275.5 407.2 436.6 436.6 732.9 732.9150 254.5 254.5 376.5 403.7 403.7 677.5 677.5200 240.9 240.9 356.6 382.2 382.2 641.5 641.5250 232.9 232.9 344.6 369.3 369.3 620.2 620.2300 225.2 225.2 333.0 357.0 357.0 599.6 599.6350 217.6 217.6 322.0 345.2 345.2 579.3 579.3375 214.3 214.3 317.0 339.7 339.7 570.3 570.3400 213.0 213.0 315.1 337.8 337.8 567.4 567.4

A182 425 211.5 211.5 312.6 335.0 335.0 562.7 562.7F347/F347H 450 210.5 210.5 311.3 333.7 333.7 560.1 560.1

(3) (4) 475 209.3 209.3 309.8 332.2 332.2 557.6 557.6500 192.6 192.6 284.8 305.5 305.5 512.5 512.5525 172.6 172.6 255.2 273.6 273.6 459.3 459.3538 163.4 163.4 241.7 259.0 259.0 435.2 435.2550 163.4 163.4 259.0 259.0 435.2 435.2575 162.4 161.1 258.7 255.3 435.2 429.0600 156.3 150.9 253.5 239.3 435.2 402.0625 135.9 126.1 225.8 200.0 412.7 336.2650 88.7 82.2 147.6 130.6 271.8 219.2675 66.3 61.4 110.1 97.4 202.5 163.4700 51.2 47.5 85.0 75.2 156.2 126.1725 39.4 36.5 65.1 57.6 119.7 96.7750 31.6 29.3 51.9 45.9 95.8 77.4775 25.1 23.2 41.3 36.5 76.0 61.4800 20.1 18.5 33.1 29.3 61.2 49.3816 17.9 16.6 29.7 26.2 55.2 44.5

-29 to 38 260.0 260.0 384.1 411.7 411.7 691.7 691.750 251.1 251.1 371.1 397.8 397.8 668.2 668.2

100 216.9 216.9 320.7 343.9 343.9 577.4 577.4150 196.2 196.2 290.2 311.2 311.2 522.2 522.2

A182 200 180.4 180.4 266.9 286.0 286.0 480.3 480.3F316L 250 167.9 167.9 248.4 266.3 266.3 447.1 447.1

300 158.8 158.8 234.9 251.7 251.7 422.6 422.6350 150.6 150.6 223.0 239.1 239.1 401.3 401.3375 147.8 147.8 218.6 234.4 234.4 393.3 393.3400 144.7 144.7 214.3 229.8 229.8 385.6 385.6425 142.9 142.9 211.2 226.4 226.4 380.0 380.0450 139.9 139.9 207.0 221.9 221.9 372.7 372.7454 139.3 139.3 206.2 221.0 221.0 371.4 371.4



H

Forged Steel, Bolted Bonnet

VALVE TYPE TEMPERATURE PRESSURE (PSIG)°F A-105 (1) F-11

1. Permissible but not recommended for prolonged use at temperatures above approx. 800°F.2. Shaded ratings exceed those of Edward Valves. Consult your Edward Valves sales representative for applications in these ranges.

-20 to 100 1480 1500200 1350 1500300 1315 1445400 1270 1385500 1200 1330600 1095 1210650 1075 1175

FLANGED END ONLY 700 1065 1135B16.34 STANDARD CLASS 600 750 1010 1065

(2) 800 825 1015850 535 975900 345 900950 205 640

1000 105 430

-20 to 100 2000 2000200 2000 2000300 2000 2000400 2000 2000500 2000 2000

SOCKET WELDING AND 600 1900 2000THREADED END ONLY 650 1865 2000

B16.34 LIMITED CLASS 800 700 1850 1955(2) 750 1680 1945

800 1375 1920850 895 1805900 575 1565950 350 1070

1000 180 745


SERIES 1500 Pressure/Temperature Ratings

H


VALVE TYPE TEMPERATURE PRESSURE (PSIG)°F A-105 (1) F-11

1. Permissible but not recommended for prolonged use at temperatures above approx. 800°F.2. Series 1500 components are designed and rated to Edward Valves standards. See paragraph 3.2, pages G59-G60, for additional information.3. Shaded ratings exceed those of Edward Valves. Consult your Edward Valves sales representative for applications in these ranges.

-20 to 100 3600 3600200 3375 3510

SOCKET WELDING, THREADED 300 3280 3365AND FLANGED END VALVES 400 3170 3290

SERIES 1500 500 2995 3130(2) (3) 600 2735 2770

650 2560 2595MANUFACTURER’S RATING 700 2350 2420ASME B31.1 PARA. 107.1B 750 2130 2255

800 1830 2085850 1500 1920900 1750950 1585975 1500



H

-29 to 38 102.1 103.450 100.1 103.4

100 92.8 103.0150 90.6 99.6200 87.8 95.8250 83.6 92.4300 77.5 85.8350 74.0 80.4

FLANGED END ONLY 375 72.9 77.6B16.34 STANDARD CLASS PN 110 400 69.1 73.3

(2) 425 57.7 70.2450 40.1 67.7475 27.2 63.4500 17.6 50.6525 10.4 36.3538 7.2 29.7

-29 to 38 137.9 137.950 137.9 137.9

100 137.9 137.9150 137.9 137.9200 137.9 137.9250 137.9 137.9

SOCKET WELDING AND 300 133.0 137.9THREADED END ONLY 350 128.4 137.2

B16.34 LIMITED CLASS PN 130 375 125.9 134.7(2) 400 115.0 134.1

425 96.1 132.5450 67.0 125.8475 45.4 112.2500 29.7 86.1525 17.8 61.7538 12.4 51.4


VALVE TYPE TEMPERATURE PRESSURE (BAR)°C A-105 (1) F-11

1. Permissible but not recommended for prolonged use at temperatures above approx. 427°C.2. Shaded ratings exceed those of Edward Valves. Consult your Edward Valves sales representative for applications in these ranges.

1 bar = 100 kPa = 14.5 psi


SERIES 1500 Pressure/Temperature Ratings (METRIC)

H

-29 to 38 248.3 248.350 244.9 246.9

SOCKET WELDING, THREADED 100 232.0 240.9AND FLANGED END VALVES 150 226.1 232.0

SERIES 1500 200 219.2 227.3(2) (3) 250 208.7 217.8

300 193.6 198.0MANUFACTURER’S RATING 350 173.1 176.1ASME B31.1 PARA. 107.1B 375 159.9 165.3

400 146.1 155.0425 127.4 144.5

454/450 103.4 134.2475 123.7500 113.4524 103.4


VALVE TYPE TEMPERATURE PRESSURE (BAR)°C A-105 (1) F-11

1. Permissible but not recommended for prolonged use at temperatures above approx. 427°C.2. Series 1500 components are designed and rated to Edward Valves standards. See paragraph 3.2, pages G59-G60, for additional information.3. Shaded ratings exceed those of Edward Valves. Consult your Edward Valves sales representative for applications in these ranges.

1 bar = 100 kPa = 14.50 psi



H

Cast Steel* (Gate, Globe & Check Valves)TEMPERATURE PRESSURE (PSIG)

RATING °F 300 400 600 700 900 1100 1500 1800 2500 2900 4500**

-20 to 100 740 990 1480 1725 2220 2715 3705 4445 6170 7160 11110

200 675 900 1350 1575 2025 2475 3375 4050 5625 6525 10120

300 655 875 1315 1535 1970 2405 3280 3935 5470 6345 9845

400 635 845 1270 1480 1900 2325 3170 3805 5280 6125 9505

500 600 800 1200 1400 1795 2195 2995 3595 4990 5790 8980

ASTM A216-WCB 600 550 730 1095 1275 1640 2005 2735 3285 4560 5290 8210

STANDARD CLASS 650 535 715 1075 1255 1610 1970 2685 3220 4475 5190 8055

(1) (2) 700 535 710 1065 1245 1600 1955 2665 3200 4440 5150 7990

750 505 670 1010 1175 1510 1845 2520 3025 4200 4870 7560

800 410 550 825 960 1235 1510 2060 2470 3430 3980 6170

850 270 355 535 625 805 985 1340 1605 2230 2585 4010

900 170 230 345 400 515 630 860 1030 1430 1660 2570

950 105 140 205 240 310 380 515 620 860 995 1545

1000 50 70 105 120 155 190 260 310 430 500 770

-20 to 100 750 1000

200 750 1000

300 750 1000

400 750 1000

500 750 1000

ASTM A216-WCB 600 715 950

SPECIAL CLASS 650 700 935

(1) (2) 700 695 925

750 630 840

800 515 685

850 335 445

900 215 285

950 130 170

1000 65 85

1500 1750 2250 2750 3750 4500 6250 7250 11250

1500 1750 2250 2750 3750 4500 6250 7250 11250

1500 1750 2250 2750 3750 4500 6250 7250 11250

1500 1750 2250 2750 3750 4500 6250 7250 11250

1500 1750 2250 2750 3750 4500 6250 7250 11250

1425 1665 2140 2615 3565 4280 5940 6890 10690

1400 1635 2100 2565 3495 4195 5825 6755 10485

1390 1620 2080 2545 3470 4165 5780 6705 10405

1260 1470 1890 2310 3150 3780 5250 6090 9450

1030 1200 1545 1885 2570 3085 4285 4970 7715

670 780 1005 1225 1670 2005 2785 3230 5015

430 500 645 785 1070 1285 1785 2070 3215

260 300 385 470 645 775 1070 1240 1930

130 150 195 235 320 385 535 620 965

Note: Flanged End Valve ratings are limited to standard class only.

1. Permissible but not recommended for prolonged use at temperatures above approx. 800°F.2. Shaded ratings exceed those of standard Edward Valves. Consult your Edward Valves sales representative for applications in these ranges.* Pressure temperature ratings are from ASME B16.34 “Valves, Flanged, Threaded and Welding Ends.”

Consult your Edward Valves sales representative for pressure temperature ratings of materials not included in this catalog.** Series 4500 rated Cast Steel Valves do not comply with ASME Class 4500 ratings. Consult your Edward Valves sales representative for pressure

temperature ratings of these valves. See paragraph 3.2, pages G59-G60, for additional information.



H

Cast Steel* (Gate, Globe & Check Valves)

1. Permissible but not recommended for prolonged use at temperatures above approx. 427°C.2. Shaded ratings exceed those of standard Edward Valves. Consult your Edward Valves sales representative for applications in these ranges.* Pressure temperature ratings are from ASME B16.34 “Valves, Flanged, Threaded and Welding Ends.”

Consult your Edward Valves sales representative for pressure temperature ratings of materials not included in this catalog.

1 bar = 100 kPa = 14.50 psi

TEMPERATURE PRESSURE (BAR)RATING °C PN 50 PN 68 PN 110 PN 120 PN 150 PN 190 PN 260 PN 310 PN 420 PN 490 PN 760

-29 to 38 51.0 68.3 102.1 119.0 153.1 187.2 255.5 306.6 425.5 493.8 766.2

50 50.0 66.9 100.1 116.7 150.1 183.6 250.5 300.6 417.2 484.2 751.2

100 46.4 61.9 92.8 108.3 139.2 170.1 232.0 278.4 386.6 448.5 695.7

150 45.1 60.3 90.6 105.8 135.8 165.8 226.1 271.2 377.0 437.3 678.5

200 43.9 58.4 87.8 102.4 131.4 160.8 219.2 263.1 365.2 423.6 657.4

ASTM A216-WCB 250 41.8 55.7 83.6 97.5 125.1 153.0 208.7 250.5 347.7 403.5 625.8

STANDARD CLASS 300 38.9 51.7 77.5 90.3 116.1 141.9 193.6 232.5 322.8 374.5 581.1

(1) (2) 350 36.9 49.2 74.0 86.4 110.9 135.6 184.8 221.7 308.0 357.3 554.4

375 36.6 48.6 72.9 85.2 109.5 133.8 182.4 219.0 303.9 352.5 546.9

400 34.6 45.9 69.1 80.4 103.4 126.3 172.5 207.1 287.5 333.4 517.5

425 28.7 38.4 57.7 67.1 86.3 105.5 144.0 172.6 239.7 278.2 431.3

450 20.2 26.6 40.1 46.8 60.3 73.7 100.4 120.2 167.0 193.7 300.4

475 13.5 18.1 27.2 31.6 40.7 49.8 67.9 81.3 113.0 131.1 203.1

500 8.9 11.9 17.6 20.5 26.5 32.4 44.1 52.9 73.5 85.1 132.0

525 5.2 7.0 10.4 12.1 15.6 19.1 26.0 31.2 43.3 50.2 77.7

538 3.4 4.8 7.2 8.3 10.7 13.1 17.9 21.4 29.7 34.5 53.1

-29 to 38 51.7 69.0 103.4 120.7 155.2 189.7 258.6 310.3 431.0 500.0 775.9

50 51.7 69.0 103.4 120.7 155.2 189.7 258.6 310.3 431.0 500.0 775.9

100 51.7 69.0 103.4 120.7 155.2 189.7 258.6 310.3 431.0 500.0 775.9

150 51.7 69.0 103.4 120.7 155.2 189.7 258.6 310.3 431.0 500.0 775.9

200 51.7 69.0 103.4 120.7 155.2 189.7 258.6 310.3 431.0 500.0 775.9

ASTM A216-WCB 250 51.7 69.0 103.4 120.7 155.2 189.7 258.6 310.3 431.0 500.0 775.9

SPECIAL CLASS 300 50.0 66.5 99.7 116.5 149.7 183.0 249.4 299.4 415.6 482.1 748.1

(1) (2) 350 48.2 64.3 96.4 112.5 144.5 176.6 240.6 288.8 401.0 465.0 721.8

375 47.3 63.0 94.6 110.3 141.6 173.2 236.2 283.5 393.5 456.5 708.4

400 43.1 57.5 86.3 100.6 129.4 158.1 215.6 258.8 359.4 416.9 646.9

425 36.0 47.9 72.0 83.9 108.0 131.8 179.6 215.6 299.5 347.4 539.2

450 25.1 33.3 50.2 58.4 75.3 91.8 125.1 150.2 208.6 242.0 375.7

475 17.0 22.5 34.0 39.5 50.9 62.0 84.6 101.5 141.0 163.6 254.0

500 11.1 14.6 22.2 25.7 33.0 40.2 55.0 66.1 91.5 106.1 165.0

525 6.5 8.6 13.1 15.1 19.5 23.7 32.4 38.9 53.9 62.4 97.2

538 4.5 5.9 9.0 10.3 13.4 16.2 22.1 26.6 36.9 42.8 66.6



H


Note: Flanged End Valve ratings are limited to standard class only and terminate at 1000°F.

1. Shaded ratings may require special trim and packing. Consult your Edward Valves sales representative for applications in these ranges.* Pressure temperature ratings are from ASME B16.34 “Valves, Flanged, Threaded and Welding Ends.”


temperature ratings of these valves. See paragraph 3.2, page G59-G60, for additional information.

TEMPERATURE PRESSURE (PSIG)RATING °F 300 400 600 700 900 1100 1500 1800 2500 2900 4500**

-20 to 100 750 1000 1500 1750 2250 2750 3750 4500 6250 7250 11250

200 750 1000 1500 1750 2250 2750 3750 4500 6250 7250 11250

300 720 965 1445 1685 2165 2645 3610 4330 6015 6980 10830

400 695 925 1385 1615 2080 2540 3465 4160 5775 6700 10400

500 665 885 1330 1550 1995 2440 3325 3990 5540 6425 9965

ASTM A-217-WC6 600 605 805 1210 1410 1815 2220 3025 3630 5040 5845 9070

STANDARD CLASS 650 590 785 1175 1370 1765 2155 2940 3530 4905 5690 8825

(1) 700 570 755 1135 1325 1705 2085 2840 3405 4730 5485 8515

750 530 710 1065 1240 1595 1950 2660 3190 4430 5140 7970

800 510 675 1015 1185 1525 1865 2540 3045 4230 4905 7610

850 485 650 975 1135 1460 1785 2435 2925 4060 4710 7305

900 450 600 900 1050 1350 1650 2245 2695 3745 4345 6740

950 320 425 640 745 955 1170 1595 1915 2655 3080 4785

1000 215 290 430 505 650 795 1080 1295 1800 2090 3240

1050 145 190 290 335 430 525 720 865 1200 1390 2160

1100 95 130 190 225 290 355 480 575 800 930 1440

-20 to 100 750 1000 1500 1750 2250 2750 3750 4500 6250 7250 11250

200 750 1000 1500 1750 2250 2750 3750 4500 6250 7250 11250

300 750 1000 1500 1750 2250 2750 3750 4500 6250 7250 11250

400 750 1000 1500 1750 2250 2750 3750 4500 6250 7250 11250

500 750 1000 1500 1750 2250 2750 3750 4500 6250 7250 11250

ASTM A-217-WC6 600 750 1000 1500 1750 2250 2750 3750 4500 6250 7250 11250

SPECIAL CLASS 650 750 1000 1500 1750 2250 2750 3750 4500 6250 7250 11250

(1) 700 735 980 1465 1710 2200 2690 3665 4400 6110 7085 10995

750 730 970 1460 1700 2185 2670 3645 4375 6070 7040 10930

800 720 960 1440 1680 2160 2640 3600 4320 6000 3960 10800

850 680 905 1355 1580 2030 2480 3385 4065 5645 6550 10160

900 585 785 1175 1370 1760 2150 2935 3525 4895 5675 8805

950 400 530 795 930 1195 1460 1995 2395 3320 3850 5980

1000 270 360 540 630 810 990 1350 1620 2250 2610 4050

1050 180 240 360 420 540 660 900 1080 1500 1740 2700

1100 120 160 240 280 360 440 600 720 1000 1160 1800



H


1. Shaded ratings may require special trim and packing. Consult your Edward Valves sales representative for applications in these ranges.* Pressure temperature ratings are from ASME B16.34 “Valves, Flanged, Threaded and Welding Ends.”


1 bar = 100 kPa = 14.50 psi


-29 to 38 51.7 69.0 103.4 120.7 155.2 189.7 258.6 310.3 431.0 500.0 775.9

50 51.7 69.0 103.4 120.7 155.2 189.7 258.6 310.3 431.0 500.0 775.9

100 51.5 68.7 103.0 120.2 154.5 188.8 257.5 308.9 429.1 497.8 772.4

150 49.6 66.5 99.6 116.1 149.2 182.3 248.8 298.4 414.5 481.0 746.3

200 48.1 64.0 95.8 111.8 143.9 175.8 239.8 287.8 399.6 463.6 719.6

ASTM A-217-WC6 250 46.2 61.5 92.4 107.7 138.6 169.5 231.0 277.3 385.0 446.5 692.6

STANDARD CLASS 300 42.9 57.1 85.8 99.9 128.6 157.4 214.4 257.3 357.2 414.3 642.8

(1) 350 40.4 53.6 80.4 93.7 120.7 147.5 201.1 241.4 335.4 389.0 603.5

375 38.9 51.6 77.6 90.6 116.5 142.5 194.1 232.8 323.3 374.9 582.0

400 36.5 48.9 73.3 85.4 109.8 134.2 183.1 219.6 305.0 353.8 548.7

425 35.3 46.7 70.2 82.0 105.5 129.0 175.7 210.6 292.6 339.2 526.3

450 33.7 45.1 67.7 78.8 101.4 124.0 169.1 203.0 281.9 327.0 507.2

475 31.7 42.3 63.4 73.9 95.1 116.2 158.2 190.0 263.9 306.2 475.0

500 25.3 33.7 50.6 59.0 75.7 92.6 126.1 151.4 210.2 243.8 378.5

525 18.2 24.3 36.3 42.4 54.5 66.7 90.8 109.0 151.3 175.5 272.5

538 14.8 19.9 29.6 34.7 44.7 54.7 74.3 89.1 123.8 143.8 222.9

550 12.7 17.0 25.4 29.7 38.2 46.6 63.6 76.3 105.9 122.9 190.7

575 8.8 11.7 17.7 20.5 26.4 32.2 44.0 52.9 73.4 85.1 132.1

593 6.6 9.0 13.1 15.5 20.0 24.5 33.1 39.7 55.2 64.1 99.3

-29 to 38 51.7 69.0 103.4 120.7 155.2 189.7 258.6 310.3 431.0 500.0 775.9

50 51.7 69.0 103.4 120.7 155.2 189.7 258.6 310.3 431.0 500.0 775.9

100 51.7 69.0 103.4 120.7 155.2 189.7 258.6 310.3 431.0 500.0 775.9

150 51.7 69.0 103.4 120.7 155.2 189.7 258.6 310.3 431.0 500.0 775.9

200 51.7 69.0 103.4 120.7 155.2 189.7 258.6 310.3 431.0 500.0 775.9

ASTM A-217-WC6 250 51.7 69.0 103.4 120.7 155.2 189.7 258.6 310.3 431.0 500.0 775.9

STANDARD CLASS 300 51.7 69.0 103.4 120.7 155.2 189.7 258.6 310.3 431.0 500.0 775.9

(1) 350 51.5 68.6 102.9 120.0 154.3 188.7 257.2 308.7 428.7 497.3 771.6

375 50.6 67.5 101.0 117.8 151.6 185.3 252.6 303.2 421.0 488.2 757.6

400 50.3 66.9 100.6 117.2 150.6 184.1 251.3 301.6 418.4 485.3 753.4

425 49.7 66.2 99.4 115.9 149.1 182.2 248.5 298.2 414.1 480.3 745.4

450 47.3 63.0 94.4 110.1 141.4 172.8 235.8 283.2 393.2 456.2 707.8

475 42.0 56.3 84.3 98.2 126.2 154.2 210.5 252.8 351.0 407.1 631.5

500 32.2 42.9 64.3 75.1 96.4 117.8 160.9 193.2 268.1 310.8 482.6

525 22.7 30.2 45.3 53.0 68.1 83.2 113.6 136.3 189.1 219.3 340.5

538 18.6 24.8 37.1 43.3 55.7 68.1 92.9 111.4 154.8 179.5 278.6

550 15.9 21.2 31.8 37.1 47.7 58.3 79.4 95.3 132.4 153.6 238.3

575 11.0 14.7 22.0 25.7 33.0 40.4 55.0 66.0 91.7 106.4 165.1

593 8.3 11.0 16.6 19.3 24.8 30.3 41.4 49.7 69.0 80.0 124.1



H


* Pressure temperature ratings are from ASME B16.34 “Valves, Flanged, Threaded and Welding Ends.”Consult your Edward Valves sales representative for pressure temperature ratings of materials not included in this catalog.

** Series 4500 rated Cast Steel Valves do not comply with ASME Class 4500 ratings. Consult your Edward Valves sales representative for pressuretemperature ratings of these valves. See paragraph 3.2, page G59-G60, for additional information.


-20 to 100 750 1000 1500 1750 2250 2750 3750 4500 6250 7250 11250

200 750 1000 1500 1750 2250 2750 3750 4500 6250 7250 11250

300 730 970 1455 1700 2185 2670 3640 4370 6070 7040 10925

400 705 940 1410 1645 2115 2585 3530 4235 5880 6820 10585

500 665 885 1330 1550 1995 2440 3325 3990 5540 6425 9965

ASTM A217-WC9 600 605 805 1210 1410 1815 2220 3025 3630 5040 5845 9070

STANDARD CLASS 650 590 785 1175 1370 1765 2155 2940 3530 4905 5690 8825

700 570 755 1135 1325 1705 2085 2840 3405 4730 5485 8515

750 530 710 1065 1240 1595 1950 2660 3190 4430 5140 7970

800 510 675 1015 1185 1525 1865 2540 3045 4230 4905 7610

850 485 650 975 1135 1460 1785 2435 2925 4060 4710 7305

900 450 600 900 1050 1350 1650 2245 2695 3745 4345 6740

950 375 505 755 880 1130 1380 1885 2265 3145 3650 5665

1000 260 345 520 605 780 955 1305 1565 2170 2520 3910

1050 175 235 350 410 525 640 875 1050 1455 1690 2625

1100 110 145 220 255 330 405 550 660 915 1060 1645

-20 to 100 750 1000 1500 1750 2250 2750 3750 4500 6250 7250 11250

200 750 1000 1500 1750 2250 2750 3750 4500 6250 7250 11250

300 740 990 1485 1730 2225 2720 3705 4450 6180 7170 11120

400 725 965 1450 1690 2175 2655 3620 4345 6035 7000 10865

500 720 960 1440 1680 2160 2640 3600 4320 6000 6960 10800

ASTM A217-WC9 600 720 960 1440 1680 2160 2640 3600 4320 6000 6960 10800

SPECIAL CLASS 650 715 955 1430 1670 2145 2625 3580 4295 5965 6920 10735

700 710 955 1425 1660 2135 2610 3555 4270 5930 6880 10670

750 690 920 1380 1610 2070 2530 3450 4140 5750 6670 10350

800 675 895 1345 1570 2020 2470 3365 4035 5605 6505 10095

850 645 855 1285 1500 1930 2360 3215 3855 5355 6215 9645

900 600 800 1200 1400 1800 2200 3000 3600 5000 5800 9000

950 470 630 945 1100 1415 1730 2355 2830 3930 4560 7070

1000 325 435 650 760 975 1195 1630 1955 2715 3150 4885

1050 220 290 435 510 655 800 1095 1315 1820 2110 3280

1100 135 185 275 320 410 500 685 825 1145 1325 2055



H

Cast Steel* (Gate, Globe & Check Valves) 1 bar = 100 kPa = 14.5 psiTEMPERATURE PRESSURE (BAR)

RATING °C PN 50 PN 68 PN 110 PN 120 PN 150 PN 190 PN 260 PN 310 PN 420 PN 490 PN 760

-29 to 38 51.7 69.0 103.4 120.7 155.2 189.7 258.6 310.3 431.0 500.0 775.9

50 51.7 69.0 103.4 120.7 155.2 189.7 258.6 310.3 431.0 500.0 775.9

100 51.6 68.7 103.1 120.3 154.6 189.0 257.7 309.3 429.5 498.3 773.2

150 50.3 66.9 100.3 117.2 150.6 184.0 250.9 301.2 418.4 485.2 753.0

200 48.8 65.0 97.5 113.8 146.2 178.7 244.1 292.8 406.6 471.6 731.9

ASTM A-217-WC9 250 46.4 61.7 92.7 108.1 139.1 170.1 231.9 278.2 386.3 448.0 694.9

STANDARD CLASS 300 42.9 57.1 85.8 99.9 128.6 157.4 214.4 257.3 357.2 414.3 642.8

350 40.4 53.6 80.4 93.7 120.7 147.5 201.1 241.4 335.4 389.0 603.5

375 38.9 51.6 77.6 90.6 116.5 142.5 194.1 232.8 323.3 374.9 582.0

400 36.5 48.9 73.3 85.4 109.8 134.2 183.1 219.6 305.0 353.8 548.7

425 35.3 46.7 70.2 82.0 105.5 129.0 175.7 210.6 292.6 339.2 526.3

450 33.7 45.1 67.7 78.8 101.4 124.0 169.1 203.0 281.9 327.0 507.2

475 31.7 42.3 63.4 73.9 95.1 116.2 158.2 190.0 263.9 306.2 475.0

500 27.7 37.2 55.7 64.9 83.4 101.9 138.9 166.9 231.8 269.0 417.4

525 21.6 28.9 43.3 50.4 64.9 79.3 108.4 130.1 180.6 209.6 325.3

538 17.9 23.7 35.8 41.6 53.7 65.7 89.8 107.6 149.3 173.3 268.9

550 15.4 20.5 30.7 35.8 46.1 56.3 77.0 92.3 128.0 148.6 230.7

575 10.5 14.1 21.1 24.6 31.6 38.6 52.7 63.3 87.7 101.8 158.1

593 7.6 10.0 15.2 17.6 22.8 27.9 37.9 45.5 63.1 73.1 113.4

-29 to 38 51.7 69.0 103.4 120.7 155.2 189.7 258.6 310.3 431.0 500.0 775.9

50 51.7 69.0 103.4 120.7 155.2 189.7 258.6 310.3 431.0 500.0 775.9

100 51.6 68.9 103.3 120.5 155.0 189.4 258.2 309.9 430.5 499.3 774.8

150 51.0 68.2 102.4 119.3 153.4 187.5 255.4 306.8 426.0 494.2 766.5

200 50.1 66.7 100.2 116.8 150.3 183.5 250.1 300.2 417.0 483.7 750.7

ASTM A-217-WC9 250 49.7 66.3 99.4 116.0 149.2 182.3 248.5 298.2 414.2 480.5 745.6

STANDARD CLASS 300 49.7 66.2 99.3 115.9 149.0 182.1 248.3 297.9 413.8 480.0 744.8

350 49.2 65.9 98.5 115.0 147.8 180.8 246.5 295.8 410.8 476.6 739.3

375 48.8 65.5 97.8 114.0 146.6 179.2 244.2 293.2 407.2 472.5 732.8

400 47.5 63.4 95.1 110.9 142.6 174.3 237.7 285.2 396.2 459.5 713.1

425 46.6 61.8 92.9 108.4 139.5 170.6 232.4 278.7 387.2 449.3 697.3

450 44.8 59.4 89.3 104.2 134.1 164.0 223.4 267.8 372.1 431.8 670.1

475 42.2 56.2 84.3 98.3 126.5 154.6 210.8 252.8 351.2 407.4 632.3

500 35.6 47.7 71.5 83.3 107.1 131.0 178.4 214.3 297.6 345.3 535.5

525 27.0 36.2 54.2 63.2 81.2 99.4 135.4 162.6 225.8 262.0 406.2

538 22.4 29.9 44.7 52.3 67.1 82.2 112.1 134.5 186.7 216.7 336.0

550 19.2 25.6 38.3 44.8 57.5 70.4 96.2 115.4 160.1 185.7 288.2

575 13.2 17.5 26.2 30.7 39.4 48.1 65.9 79.2 109.7 127.1 197.5

593 9.3 12.8 19.0 22.1 28.3 34.5 47.2 56.9 79.0 91.4 141.7


ASME B16.34a – 1998 Pressure/Temperature Ratings

H



** Series 4500 rated Cast Steel Valves do not comply with ASME Class 4500 ratings. Consult your Edward Valves sales representative for pressuretemperature ratings of these valves. See paragraph 3.2, page G59-G60, for additional information.

Shaded ratings may require special trim or packing. Consult your Edward Valves sales representative for applications in these ranges.


-20 to 100 750 1000 1500 1750 2250 2750 3750 4500 6250 7250 11250

200 750 1000 1500 1750 2250 2750 3750 4500 6250 7250 11250

300 730 970 1455 1700 2185 2670 3640 4370 6070 7040 10925

400 705 940 1410 1645 2115 2585 3530 4235 5880 6820 10585

500 665 885 1330 1550 1995 2440 3325 3990 5540 6425 9965

ASTM A217-C12A 600 605 805 1210 1410 1815 2220 3025 3630 5040 5845 9070

STANDARD CLASS 650 590 785 1175 1370 1765 2155 2940 3530 4905 5690 8825

700 570 755 1135 1325 1705 2085 2840 3405 4730 5485 8515

750 530 710 1065 1240 1595 1950 2660 3190 4430 5140 7970

800 510 675 1015 1185 1525 1865 2540 3045 4230 4905 7610

850 485 650 975 1135 1460 1785 2435 2925 4060 4710 7305

900 450 600 900 1050 1350 1650 2245 2695 3745 4345 6740

950 385 515 775 905 1160 1415 1930 2315 3220 3735 5795

1000 365 485 725 845 1090 1335 1820 2185 3030 3515 5450

1050 360 480 720 840 1080 1320 1800 2160 3000 3480 5400

1100 300 400 605 705 905 1105 1510 1810 2515 2915 4525

1150 225 295 445 520 670 820 1115 1335 1855 2155 3345

1200 145 190 290 335 430 525 720 865 1200 1390 2160

-20 to 100 750 1000 1500 1750 2250 2750 3750 4500 6250 7250 11250

200 750 1000 1500 1750 2250 2750 3750 4500 6250 7250 11250

300 750 1000 1500 1750 2250 2750 3750 4500 6250 7250 11250

400 750 1000 1500 1750 2250 2750 3750 4500 6250 7250 11250

500 750 1000 1500 1750 2250 2750 3750 4500 6250 7250 11250

ASTM A217-C12A 600 750 1000 1500 1750 2250 2750 3750 4500 6250 7250 11250

SPECIAL CLASS 650 750 1000 1500 1750 2250 2750 3750 4500 6250 7250 11250

700 735 980 1465 1710 2200 2690 3665 4400 6110 7085 10995

750 730 970 1460 1700 2185 2670 3645 4375 6070 7040 10930

800 720 960 1440 1680 2160 2640 3600 4320 6000 6960 10800

850 680 905 1355 1580 2030 2480 3385 4065 5645 6550 10160

900 600 800 1200 1400 1800 2200 3000 3600 5000 5800 9000

950 470 630 945 1100 1415 1730 2360 2830 3930 4560 7070

1000 420 560 840 980 1260 1540 2105 2525 3505 4065 6310

1050 420 560 840 980 1260 1540 2105 2525 3505 4065 6310

1100 375 505 755 880 1130 1380 1885 2265 3145 3645 5655

1150 280 370 555 650 835 1020 1395 1675 2320 2690 4180

1200 180 240 360 420 540 660 900 1080 1500 1740 2700


ASME B16.34a – 1998 Pressure/Temperature Ratings (METRIC)

H



Shaded ratings may require special trim or packing. Consult your Edward Valves sales representative for applications in these ranges.

1 bar = 100 kPa = 14.5 psi


-29 to 38 51.7 69.0 103.4 120.7 155.2 189.7 258.6 291.4 431.0 500.0 775.950 51.7 69.0 103.4 120.7 155.2 189.7 258.6 291.4 431.0 500.0 775.9

100 51.6 68.7 103.1 120.3 154.6 189.0 257.7 290.3 429.5 498.3 773.2150 50.3 66.9 100.3 117.2 150.6 184.0 250.9 282.6 418.4 485.2 753.0200 48.8 65.0 97.5 113.8 146.2 178.7 244.1 274.8 406.6 471.6 731.9

ASTM A-217-C12A 250 46.4 61.7 92.7 108.1 139.1 170.1 231.9 261.1 386.3 448.0 694.9STANDARD CLASS 300 42.9 51.7 85.8 99.9 128.6 157.4 214.4 241.6 357.2 414.3 642.8

350 40.4 53.6 80.4 93.7 120.7 147.5 201.1 226.7 335.4 389.0 603.5375 38.9 51.6 77.6 90.6 116.5 142.5 194.1 218.7 323.3 374.9 582.0400 36.5 48.9 73.3 85.4 109.8 134.2 183.1 206.2 305.0 353.8 548.7425 35.3 46.7 70.2 82.0 105.5 129.0 175.7 197.8 292.6 339.2 526.3450 33.7 45.1 67.7 78.8 101.4 124.0 169.1 190.6 281.9 327.0 507.2475 31.7 42.3 63.4 73.9 95.1 116.2 158.2 178.3 263.9 306.2 475.0500 28.2 37.6 56.6 66.0 84.7 103.4 140.9 158.8 235.1 272.7 423.1525 25.8 34.4 51.6 60.2 77.4 94.6 129.0 145.3 215.0 249.4 386.8538 25.2 33.4 50.0 58.3 75.2 92.1 125.5 141.4 208.9 242.4 375.8550 25.0 33.3 49.8 58.1 74.9 91.6 124.9 140.8 208.1 241.4 374.3575 23.4 31.2 47.0 54.8 70.4 86.0 117.3 132.3 195.5 226.8 351.9600 19.4 25.8 39.1 45.6 58.5 71.5 97.6 109.9 162.5 188.5 292.5625 14.7 19.3 29.2 34.1 43.9 53.7 73.1 82.3 121.6 141.2 219.2649 10.0 13.1 20.0 23.1 29.7 36.2 49.7 55.9 82.8 95.9 149.0

-29 to 38 51.7 69.0 103.4 120.7 155.2 189.7 258.6 310.3 431.0 500.0 775.950 51.7 69.0 103.4 120.7 155.2 189.7 258.6 310.3 431.0 500.0 775.9

100 51.7 69.0 103.4 120.7 155.2 189.7 258.6 310.3 431.0 500.0 775.9150 51.7 69.0 103.4 120.7 155.2 189.7 258.6 310.3 431.0 500.0 775.9200 51.7 69.0 103.4 120.7 155.2 189.7 258.6 310.3 431.0 500.0 775.9

ASTM A-217-C12A 250 51.7 69.0 103.4 120.7 155.2 189.7 258.6 310.3 431.0 500.0 775.9SPECIAL CLASS 300 51.7 69.0 103.4 120.7 155.2 189.7 258.6 310.3 431.0 500.0 775.9

350 51.5 68.6 102.9 120.0 154.3 188.7 257.2 308.7 428.7 497.3 771.6375 50.6 67.5 101.0 117.8 151.6 185.3 252.6 303.2 421.0 488.2 757.6400 50.3 66.9 100.6 117.2 150.6 184.1 251.3 301.6 418.4 485.3 753.4425 49.7 66.2 99.4 115.9 149.1 182.2 248.5 298.2 414.1 480.3 745.4450 47.3 63.0 94.4 110.1 141.4 172.8 235.8 283.2 393.2 456.2 707.8475 42.8 57.1 85.5 99.8 128.3 156.7 213.8 256.6 356.4 413.4 641.5500 35.6 47.7 71.5 83.3 107.1 131.0 178.6 214.3 297.6 345.3 535.5525 30.6 40.8 61.3 71.4 91.8 112.2 153.3 183.8 255.2 296.0 459.3538 29.0 38.6 57.9 67.6 86.9 106.2 145.2 174.1 241.7 280.3 435.2550 29.0 38.6 57.9 67.6 86.9 106.2 145.2 174.1 241.7 280.3 435.2575 27.9 37.3 55.9 65.2 83.8 102.5 140.0 168.0 233.3 270.5 419.8600 24.3 32.6 48.8 56.9 73.0 89.2 121.9 146.4 203.2 235.6 365.6625 18.3 24.3 36.4 42.6 54.7 66.9 91.4 109.8 152.1 176.3 274.0649 12.4 16.6 24.8 29.0 37.2 45.5 62.1 74.5 103.4 120.0 186.2



H


1. Shaded ratings may require special trim and packing, consult your Edward Valves representative for applications in these ranges.* Pressure temperature ratings are from ASME B16.34 “Valves, Flanged, Threaded and Welding Ends.”




-20 to 100 720 960 1440 1680 2160 2640 3600 4320 6000 6960 10800

200 620 825 1240 1445 1860 2270 3095 3715 5160 5985 9290

300 560 745 1120 1305 1680 2050 2795 3355 4660 5405 8390

400 515 685 1025 1195 1540 1885 2570 3085 4280 4965 7705

500 480 635 955 1115 1435 1755 2390 2865 3980 4615 7165

ASTM A351-CF8M 600 450 600 900 1050 1355 1655 2255 2705 3760 4360 6770

STANDARD CLASS 650 445 590 890 1035 1330 1625 2220 2665 3700 4290 6660

(1) 700 430 580 870 1015 1305 1595 2170 2605 3620 4200 6515

750 425 570 855 995 1280 1565 2135 2565 3560 4130 6410

800 420 565 845 985 1265 1545 2110 2535 3520 4085 6335

850 420 555 835 975 1255 1535 2090 2505 3480 4035 6265

900 415 555 830 970 1245 1520 2075 2490 3460 4015 6230

950 385 515 775 905 1160 1415 1930 2315 3220 3735 5795

1000 350 465 700 815 1050 1285 1750 2100 2915 3380 5245

1050 345 460 685 800 1030 1260 1720 2065 2865 3325 5155

1100 305 405 610 710 915 1120 1525 1830 2545 2950 4575

1150 235 315 475 555 710 870 1185 1420 1970 2285 3550

1200 185 245 370 430 555 680 925 1110 1545 1790 2775

1250 145 195 295 345 440 540 735 885 1230 1425 2210

1300 115 155 235 275 350 430 585 700 970 1125 1750

1350 95 130 190 225 290 355 480 575 800 930 1440

1400 75 100 150 175 225 275 380 455 630 730 1130

1450 60 80 115 135 175 215 290 350 485 565 875

1500 40 55 85 100 125 150 205 245 345 400 620



H






-20 to 100 750 1000 1500 1750 2250 2750 3750 4500 6250 7250 11250

200 690 920 1380 1610 2070 2530 3450 4140 5750 6670 10350

300 625 830 1250 1455 1870 2285 3120 3745 5200 6030 9360

400 570 760 1140 1330 1710 2090 2850 3420 4750 5510 8550

500 530 710 1065 1240 1595 1950 2655 3190 4430 5140 7970

ASTM A351-CF8M 600 505 670 1005 1175 1510 1845 2520 3025 4195 4865 7555

SPECIAL CLASS 650 495 655 985 1150 1480 1810 2465 2955 4105 4765 7395

(1) 700 485 645 970 1130 1455 1775 2420 2905 4035 4680 7265

750 475 635 950 1110 1425 1745 2380 2855 3965 4600 7135

800 470 630 945 1100 1415 1730 2355 2830 3930 4560 7070

850 465 620 930 1085 1400 1710 2330 2795 3885 4505 6990

900 465 615 925 1080 1390 1700 2315 2775 3855 4475 6945

950 460 610 915 1070 1375 1680 2290 2750 3815 4425 6870

1000 420 560 840 980 1260 1540 2105 2525 3505 4065 6310

1050 420 560 840 980 1260 1540 2105 2525 3505 4065 6310

1100 380 510 765 890 1145 1400 1905 2290 3180 3690 5720

1150 295 395 590 690 885 1085 1480 1775 2465 2860 4435

1200 230 310 465 540 695 850 1155 1390 1930 2240 3470

1250 185 245 370 430 555 675 920 1105 1535 1780 2765

1300 145 195 290 340 435 535 730 875 1215 1410 2185

1350 120 160 240 280 360 440 600 720 1000 1160 1800

1400 95 125 190 220 285 345 470 565 785 910 1415

1450 75 100 145 170 220 270 365 440 610 705 1095

1500 50 70 105 120 155 190 260 310 430 500 770



H

Cast Steel* (Gate, Globe & Check Valves) 1 bar = 100 kPa = 14.5 psi


-29 to 38 49.7 66.2 99.3 115.9 132.4 182.1 248.3 297.9 413.8 480.0 744.850 48.1 64.2 96.3 112.3 128.4 176.5 240.6 288.8 401.0 465.2 721.9

100 42.3 56.2 84.5 98.5 112.8 154.7 211.0 253.2 351.7 408.0 633.2150 38.6 51.3 77.1 89.8 102.9 141.2 192.4 231.0 320.9 372.2 577.7200 35.8 47.6 71.2 83.0 95.2 130.9 178.5 214.2 297.3 344.8 535.2

ASTM A-315-CF8M 250 33.5 44.4 66.7 77.9 89.1 122.6 167.1 200.3 278.2 322.6 500.8STANDARD CLASS 300 31.6 42.1 63.1 73.7 84.5 116.1 158.1 189.6 263.6 305.6 474.5

(1) 350 30.4 40.5 61.0 71.0 81.3 111.6 152.3 182.8 253.8 294.4 456.9375 29.6 39.9 59.9 69.8 79.8 109.7 149.3 179.3 249.1 289.0 448.3400 29.3 39.3 58.9 68.6 78.6 107.9 147.2 176.8 245.4 284.7 441.9425 29.0 39.0 58.3 68.0 77.6 106.6 145.6 175.0 242.9 281.9 437.2450 29.0 38.4 57.7 67.4 77.0 106.0 144.4 173.1 240.4 278.8 432.8475 28.7 38.3 57.3 67.0 76.4 105.1 143.4 172.0 239.0 277.3 430.3500 27.3 36.5 54.8 64.0 72.9 100.2 136.7 164.0 228.0 264.5 410.5525 25.2 33.7 50.7 59.1 67.5 92.7 126.4 151.6 210.7 244.4 379.2538 24.1 32.1 48.3 56.2 64.5 88.6 120.7 144.8 201.0 233.1 361.7550 24.0 31.9 47.8 55.8 63.9 87.9 119.8 143.8 199.5 231.4 359.0575 22.9 30.4 45.5 53.1 60.8 83.6 114.0 136.9 190.1 220.5 341.9600 19.9 26.4 39.8 46.4 53.1 73.1 99.5 119.4 166.0 192.4 298.6625 15.7 21.0 31.7 37.1 42.1 58.2 79.2 94.9 131.8 152.8 237.3650 12.6 16.8 25.3 29.4 33.8 46.5 63.3 75.9 105.7 122.4 189.8675 10.2 13.7 20.7 24.1 27.3 37.8 51.5 62.0 86.1 99.8 154.8700 8.3 11.1 16.9 19.7 22.3 30.9 42.0 50.3 69.8 80.9 125.8725 6.9 9.4 13.9 16.4 18.6 25.8 35.0 41.9 58.2 67.6 104.9750 5.7 7.6 11.3 13.3 15.2 21.0 28.7 34.4 47.7 55.3 85.6775 4.6 6.2 9.0 10.6 12.1 16.7 22.9 27.5 38.0 44.2 68.4800 3.5 4.8 7.0 8.2 9.3 12.9 17.4 21.0 29.2 34.0 52.6816 2.8 3.8 5.9 6.9 7.6 10.3 14.1 16.9 23.8 27.6 42.8





H

Cast Steel* (Gate, Globe & Check Valves) 1 bar = 100 kPa = 14.5 psi


-29 to 38 51.7 69.0 103.4 120.7 155.2 189.7 258.6 310.3 431.0 500.0 775.950 50.8 67.8 101.6 118.6 152.4 186.3 254.1 304.9 423.4 491.2 762.2

100 47.0 62.7 94.1 109.8 141.1 172.5 235.2 282.2 392.0 454.7 705.6150 43.0 57.1 86.1 100.2 128.7 157.3 214.8 257.8 358.0 415.1 644.4200 39.6 52.8 79.2 92.4 118.8 145.2 198.0 237.7 330.1 382.9 594.1

ASTM A-315-CF8M 250 37.0 49.6 74.4 86.6 111.4 136.2 185.5 222.9 309.5 359.1 556.9SPECIAL CLASS 300 35.3 47.0 70.5 82.3 105.8 129.3 176.4 211.8 293.8 340.8 529.0

(1) 350 34.0 45.0 67.7 79.0 101.7 124.2 169.3 203.0 281.9 327.2 507.8375 33.4 44.4 66.7 77.7 100.1 122.1 166.5 199.9 277.6 322.0 499.8400 32.7 43.8 65.5 76.5 98.2 120.3 164.1 196.8 273.4 317.1 491.9425 32.4 43.5 65.2 75.9 97.6 119.4 162.5 195.3 271.2 314.6 487.9450 32.1 42.9 64.3 75.0 96.7 118.2 161.0 193.1 268.4 311.3 483.0475 32.1 42.5 63.9 74.6 96.0 117.4 159.9 191.7 266.4 309.2 479.8500 31.8 42.2 63.4 74.0 95.2 116.4 158.6 190.3 264.1 306.4 475.7525 30.2 40.2 60.3 70.4 90.5 110.6 151.0 181.3 251.6 291.8 452.9538 29.0 38.6 57.9 67.6 86.9 106.2 145.2 174.1 241.7 280.3 435.2550 29.0 38.6 57.9 67.6 86.9 106.2 145.2 174.1 241.7 280.3 435.2575 28.0 37.4 56.2 65.5 84.2 102.9 140.5 168.6 234.1 271.6 421.3600 24.8 33.3 49.9 58.1 74.7 91.3 124.3 149.4 207.5 240.7 373.2625 19.7 26.4 39.5 46.1 59.2 72.6 98.9 118.7 164.8 191.3 296.5650 15.7 21.2 31.8 36.9 47.5 58.1 79.0 95.1 132.0 153.2 237.4675 12.9 17.2 25.9 30.1 38.9 47.3 64.4 77.4 107.5 124.7 193.6700 10.4 14.0 20.9 24.4 31.3 38.4 52.4 62.9 87.3 101.3 157.1725 8.7 11.7 17.4 20.4 26.2 32.0 43.7 52.4 72.8 84.5 131.0750 7.2 9.5 14.3 16.7 21.5 26.2 35.6 42.8 59.5 69.0 107.1775 5.8 7.7 11.4 13.3 17.2 21.0 28.5 34.3 47.6 55.1 85.7800 4.4 6.0 8.8 10.2 13.2 16.2 22.0 26.4 36.6 42.4 65.7816 3.4 4.8 7.2 8.3 10.7 13.1 17.9 21.4 29.7 34.5 53.1




End Configurations

H

American Steel Flange Standards ASME B16.5Dimensions in Inches

O R C* ANominal Outside Outside Minimum Diameter Number Diameter Diameter

Pipe Diameter Diameter Thickness of of of ofSize of of Raised of Bolt Bolt Bolt Bolt Stud

Flange Face Flange Circle Studs Studs Holes

1/2 3.75 1.38 0.56 2.62 4 1/2 0.623/4 4.62 1.69 0.62 3.25 4 5/8 0.751 4.88 2.00 0.69 3.50 4 5/8 0.75

1-1/4 5.25 2.50 0.75 3.88 4 5/8 0.751-1/2 6.12 2.88 0.81 4.50 4 3/4 0.88

2 6.50 3.62 0.88 5.00 8 5/8 0.752-1/2 7.50 4.12 1.00 5.88 8 3/4 0.88

3 8.25 5.00 1.12 6.62 8 3/4 0.884 10.00 6.19 1.25 7.88 8 3/4 0.885 11.00 7.31 1.38 9.25 8 3/4 0.886 12.50 8.50 1.44 10.62 12 3/4 0.888 15.00 10.62 1.62 13.00 12 7/8 1.0010 17.50 12.75 1.88 15.25 16 1 1.1212 20.50 15.00 2.00 17.75 16 1-1/8 1.2514 23.00 16.25 2.12 20.25 20 1-1/8 1.25

1/2 3.75 1.38 0.56 2.62 4 1/2 0.623/4 4.62 1.69 0.62 3.25 4 5/8 0.751 4.88 2.00 0.69 3.50 4 5/8 0.75

1-1/4 5.25 2.50 0.81 3.88 4 5/8 0.751-1/2 6.12 2.88 0.88 4.50 4 3/4 0.88

2 6.50 3.62 1.00 5.00 8 5/8 0.752-1/2 7.50 4.12 1.12 5.88 8 3/4 0.88

3 8.25 5.00 1.25 6.62 8 3/4 0.884 10.75 6.19 1.50 8.50 8 7/8 1.005 13.00 7.31 1.75 10.50 8 1 1.126 14.00 8.50 1.88 11.50 12 1 1.128 16.50 10.62 2.19 13.75 12 1-1/8 1.2510 20.00 12.75 2.50 17.00 16 1-1/4 1.3812 22.00 15.00 2.62 19.25 20 1-1/4 1.3814 23.75 16.25 2.75 20.75 20 1-3/8 1.50

American Steel Flange Standards ASME B16.5Dimensions in Inches

O R C* ANominal Outside Outside Minimum Diameter Number Diameter Diameter

Pipe Diameter Diameter Thickness of of of ofSize of of Raised of Bolt Bolt Bolt Bolt Stud

Flange Face Flange Circle Studs Studs Holes

CLASS 300 VALVE FLANGES*

CLASS 600 VALVE FLANGES

1/2 5.25 1.38 1.19 3.50 4 3/4 0.883/4 5.50 1.69 1.25 3.75 4 3/4 0.881 6.25 2.00 1.38 4.25 4 7/8 1.00

1-1/4 7.25 2.50 1.50 5.12 4 1 1.121-1/2 8.00 2.88 1.75 5.75 4 1-1/8 1.25

2 9.25 3.62 2.00 6.75 8 1 1.122-1/2 10.50 4.12 2.25 7.75 8 1-1/8 1.25

3 12.00 5.00 2.62 9.00 8 1-1/4 1.384 14.00 6.19 3.00 10.75 8 1-1/2 1.625 16.50 7.31 3.62 12.75 8 1-3/4 1.886 19.00 8.50 4.25 14.50 8 2 2.128 21.75 10.62 5.00 17.25 12 2 2.12

10 26.50 12.75 6.50 21.25 12 2-1/2 2.6212 30.00 15.00 7.25 24.38 12 2-3/4 2.88

2-1/2 9.62 4.12 1.62 7.50 8 1 1.123 9.50 5.00 1.50 7.50 8 7/8 1.004 11.50 6.19 1.75 9.25 8 1-1/8 1.255 13.75 7.31 2.00 11.00 8 1-1/4 1.386 15.00 8.50 2.19 12.50 12 1-1/8 1.258 18.50 10.62 2.50 15.50 12 1-3/8 1.50

10 21.50 12.75 2.75 18.50 16 1-3/8 1.5012 24.00 15.00 3.12 21.00 20 1-3/8 1.5014 25.25 16.25 3.38 22.00 20 1-1/2 1.62

1/2 4.75 1.38 0.88 3.25 4 3/4 0.883/4 5.12 1.69 1.00 3.50 4 3/4 0.881 5.88 2.00 1.12 4.00 4 7/8 1.00

1-1/4 6.25 2.50 1.12 4.38 4 7/8 1.001-1/2 7.00 2.88 1.25 4.88 4 1 1.12

2 8.50 3.62 1.50 6.50 8 7/8 1.002-1/2 9.62 4.12 1.62 7.50 8 1 1.12

3 10.50 5.00 1.88 8.00 8 1-1/8 1.254 12.25 6.19 2.12 9.50 8 1-1/4 1.385 14.75 7.31 2.88 11.50 8 1-1/2 1.626 15.50 8.50 3.25 12.50 12 1-3/8 1.508 19.00 10.62 3.62 15.50 12 1-5/8 1.75

10 23.00 12.75 4.25 19.00 12 1-7/8 2.0012 26.50 15.00 4.88 22.50 16 2 2.1214 29.50 16.25 5.25 25.00 16 2-1/4 2.38



CLASS 900 VALVE FLANGES**

NPS DN NPS DN NPS DN NPS DN NPS DN NPS DN NPS DN NPS DN NPS DN

Bold face numerals are in inches.Blue numerals are in millimeters.

Valve Sizes 1/4 8 3/8 10 1/2 15 3/4 20 1 25 1-1/4 32 1-1/2 40 2 50 2-1/2 65A - Socket Diameter - min. 0.555 14 0.690 18 0.855 22 1.065 27 1.330 34 1.675 43 1.915 49 2.406 61 2.906 74B - Depth of Socket - min. 0.38 10 0.38 10 0.38 10 0.50 13 0.50 13 0.50 13 0.50 13 0.62 16 0.62 16

Socket Welding Ends ASME B16.11

*C dimensions include raised face in Class 300 values.**Class 900 and 1500 standards are identical in all sizes below 2-1/2.


End Configurations (con’t.)

H

Socket Welding Ends

Conforming to requirements of ASME/ANSI B16.11

Threaded Ends

Threaded ends are provided with AmericanNational Standard Taper Pipe Threads perANSI/ASME B1.20.1

Standard Flange Facings & Extras

All Class 300 flanged valves are regularly furnishedwith 1/16 in. raised face with phonograph finish.

All Class 600,900,1500 and 2500 flanged valves areregularly furnished with 1/4 in. raised face withphonograph finish.

An extra charge will be made for facings other thanregularly furnished as above.

No deductions for valves ordered with flange facesonly.

Edward will furnish valves with patented flangefacings with the understanding that the purchasermust obtain from the patent owners a license to usethese joints.

* C dimensions include raised face in Class 300 valves.** Class 900 and 1500 standards are identical in all sizes below

size 2-1/2.


End Preparations

IMPORTANT:WHEN ORDERING BUTTWELDINGEND VALVES, INDICATE TYPE OFWELD PREP DESIRED FROM THISPAGE AND GIVE PIPE SCHEDULE TOBE USED FROM PAGES H20, H21,H22 OR PROVIDE OTHERCOMPLETE INSTRUCTIONS.

WARNING!IF WELD PREP INFORMATION IS NOTRECEIVED AT TIME OF ORDERPLACEMENT, SCHEDULED SHIPDATES CANNOT BE GUARANTEED.

Inside and outside of welding ends ofboth cast and forged steel valves to befinish machined and carefully inspectedwhere the thickness of these ends isless than 1.15 t. Edward standardpractice is to machine the outside of thecasting as shown to avoid sharp re-entrant angles and abrupt changes in slope. Runout of machined surfacediameter of valve to have no abruptchange in section. Inside diameter ofvalve may be either larger or smallerthan pipe inside diameter.

H

Buttwelding Ends

“A” For Wall Thickness (t) .1875” to .875” inclusive(ASME B 16.25 - Fig. 2A, 2B or 4)

“C” Inside Contour for Use With Rectangular BackingRing (ASME B16.25 - Fig. 2C, 3C)

“D” Inside Contour for Use With Taper Backing Ring(ASME B16.25 - Fig. 2D, 3D)

“B” For Wall Thickness (t) Greater Than .875” (ASME B16.25 - Fig. 3A, 3B)

A − Nominal outside diameter of pipeB − Nominal inside diameter of pipe

C − A - 0.031” - 1.75t - 0.010”t − Nominal wall thickness of pipe


End Preparation For Forged Steel Valves

H

FEATURES ARE PER ANSI B16.25

NOMINAL PIPE1 A B C t

PIPE SCH. OUTSIDE INSIDE BORE OF WALL

SIZE NO. DIAMETER DIAMETER WELDING LIP THICKNESS

INCHES MM INCHES MM INCHES MM INCHES MM

1/2 40 0.840 21 0.622 15.8 0.608 15.4 0.109 2.815 80 0.546 13.9 0.542 13.8 0.147 3.7

160 0.464 11.8 0.470 11.9 0.188 4.8XXS 0.252 6.4 0.285 7.2 0.294 7.5

3/4 40 1.050 27 0.824 20.9 0.811 20.6 0.113 2.920 80 0.742 18.8 0.740 18.8 0.154 3.9

160 0.612 15.6 0.626 15.9 0.219 5.6XXS 0.434 11.0 0.470 11.9 0.308 7.8

1 40 1.315 33 1.049 26.6 1.041 26.4 0.133 3.425 80 0.957 24.3 0.961 24.4 0.179 4.5

160 0.815 20.7 0.837 21.3 0.250 6.4XXS 0.599 15.2 0.648 16.5 0.358 9.1

1-1/4 40 1.660 42 1.380 35.1 1.374 34.9 0.140 3.632 80 1.278 32.5 1.285 32.6 0.191 4.9

160 1.160 29.5 1.181 30.0 0.250 6.4XXS 0.896 22.8 0.951 24.2 0.382 9.7

1-1/2 40 1.900 48 1.610 40.9 1.605 40.8 0.145 3.740 80 1.500 38.1 1.509 38.3 0.200 5.1

160 1.338 34.0 1.367 34.7 0.281 7.1XXS 1.100 27.9 1.159 29.4 0.400 10.2

2 40 2.375 60 2.067 52.5 2.065 52.5 0.154 3.950 80 1.939 49.3 1.953 49.6 0.218 5.5

160 1.687 42.9 1.734 44.0 0.344 8.7XXS 1.503 38.2 1.571 39.9 0.436 11.1

2-1/2 40 2.875 73 2.469 63 2.479 62.95 0.203 5.1565 80 2.323 59 2.351 59.7 0.276 7

160 2.125 54 2.178 55.3 0.375 9.55XXS 1.771 45 1.868 47.45 0.552 14

3 40 3.500 89 3.068 78 3.081 78.25 0.216 5.580 80 2.900 74 2.934 74.5 0.300 7.6

160 2.624 67 2.692 68.4 0.438 11.15XXS 2.300 58 2.409 61.2 0.600 15.25

4 40 4.500 114 4.026 102 4.044 102.7 0.237 6100 80 3.826 97 3.869 98.25 0.337 8.55

120 3.624 92 3.692 93.8 0.438 11.15160 3.438 87 3.530 89.65 0.531 13.5XXS 3.152 80 3.279 83.3 0.674 17.1

Buttwelding Ends

XXS – Double extra strong wall thickness

1 Designations per ANSI B36.10.



End Preparations for Cast Steel Valves

STD – Standard wall thickness

XS – Extra strong wall thickness



2 The welding ends of valve bodies do notcontain enough extra material to match thewall thickness of all pipe schedules. The “X”marks show the schedules which can besupplied for each size and pressure class ofvalve bodies. Many Class 1500 and 2500valves can be machined to accommodatespecial high pressure pipe with greater wallthickness and smaller inside diameter thanschedule 160; consult your Edward Valvessales representative concerning such cases.

H

VALVE2 FEATURES ARE PER ANSI B16.25PRESSURE CLASS


PIPE SCH. 1 2 OUTSIDE INSIDE BORE OF WALL

SIZE NO. 3 6 9 5 5 DIAMETER DIAMETER WELDING LIP THICKNESS

0 0 0 0 00 0 0 0 0 INCHES MM INCHES MM INCHES MM INCHES MM

Buttwelding Ends

2-1/2 40 X X 2.875 73 2.469 63 2.479 62.95 0.203 5.1565 80 X X X X 2.323 59 2.351 59.7 0.276 7

160 X X X 2.125 54 2.178 55.3 0.375 9.55XXS X 1.771 45 1.868 47.45 0.552 14

3 40 X X 3.500 89 3.068 78 3.081 78.25 0.216 5.580 80 X X X 2.900 74 2.934 74.5 0.300 7.6

160 X X X 2.624 67 2.692 68.4 0.438 11.15XXS X 2.300 58 2.409 61.2 0.600 15.25

4 40 X X 4.500 114 4.026 102 4.044 102.7 0.237 6100 80 X X X 3.826 97 3.869 98.25 0.337 8.55

120 X X 3.624 92 3.692 93.8 0.438 11.15160 X X 3.438 87 3.530 89.65 0.531 13.5XXS X 3.152 80 3.279 83.3 0.674 17.1

5 40 X X 5.563 141 5.047 128 5.070 128.8 0.258 6.55125 80 X X X 4.813 122 4.866 123.6 0.375 9.55

120 X X 4.563 116 4.647 118.05 0.500 12.7160 X X 4.313 110 4.428 112.45 10.625 15.9XXS X 4.063 103 4.209 106.9 0.750 19.05

6 40 X X 6.625 168 6.065 154 6.094 154.8 0.280 7.1150 80 X X X 5.761 146 5.828 148.05 0.432 10.95

120 X X 5.501 140 5.600 142.25 0.562 14.25160 X X 5.187 132 5.326 135.3 0.719 18.25XXS X X 4.897 124 5.072 128.85 0.864 21.95

8 40 X X 8.625 219 7.981 203 8.020 203.7 0.322 8.2200 60 X 7.813 198 7.873 199.95 0.406 10.3

80 X X X 7.625 194 7.709 195.8 0.500 12.7100 X X X 7.437 189 7.544 191.6 0.594 15.1120 X X 7.187 183 7.326 186.1 0.719 18.25140 X 7.001 178 7.163 181.95 0.812 20.6XXS X X 6.875 175 7.053 179.15 0.875 22.25160 X X 6.813 173 6.998 177.75 0.906 23

10 40 X X 10.750 273 10.02 255 10.070 255.8 0.365 9.25250 60 X 9.750 248 9.834 249.8 0.500 12.7

80 X X X 9.562 243 9.670 245.6 0.594 15.1100 X X X 9.312 237 9.451 240.05 0.719 18.25120 X X 9.062 230 9.232 234.5 0.844 21.45140 X 8.750 222 8.959 227.55 1.000 25.4160 X X 8.500 216 8.740 222 1.125 28.6

12 STD X X 12.750 324 12.000 305 12.053 306.15 0.375 9.55300 40 X X 11.938 303 11.999 304.75 0.406 10.3

XS X X 11.750 298 11.834 300.6 0.500 12.760 X 11.625 298 11.725 297.8 0.562 14.2580 X X X 11.374 289 11.505 292.25 0.688 17.5100 X X X 11.062 281 11.232 285.3 0.844 21.45120 X X 10.750 273 10.959 278.35 1.000 25.4140 X 10.500 267 10.740 272.8 1.125 28.6160 X X 10.126 257 10.413 264.5 1.312 33.3



End Preparations for Cast Steel Valves

STD – Standard wall thickness

XS – Extra strong wall thickness



2 The welding ends of valve bodies do notcontain enough extra material to match thewall thickness of all pipe schedules. The “X”marks show the schedules which can besupplied for each size and pressure class ofvalve bodies. Many Class 1500 and 2500valves can be machined to accommodatespecial high pressure pipe with greater wallthickness and smaller inside diameter thanschedule 160; consult your Edward Valvessales representative concerning such cases.

H

VALVE2 FEATURES ARE PER ANSI B16.25PRESSURE CLASS


PIPE SCH. 1 2 OUTSIDE INSIDE BORE OF WALL

SIZE NO. 3 6 9 5 5 DIAMETER DIAMETER WELDING LIP THICKNESS

0 0 0 0 00 0 0 0 0 INCHES MM INCHES MM INCHES MM INCHES MM

14 STD X 14.000 356 13.25 337 13.303 337.9 0.375 9.55350 40 X 13.124 333 13.192 335.1 0.438 11.15

XS X 13 330 13.084 332.35 0.5 12.760 X 12.812 325 12.92 328.15 0.594 15.180 X X X 12.5 318 12.646 321.2 0.75 19.05100 X X X 12.124 308 12.318 312.9 0.938 23.85120 X X 11.812 300 12.044 305.9 1.094 27.8140 X 11.5 292 11.771 299 1.25 31.75160 X X 11.188 284 11.498 292.05 1.406 35.7

16 STD X 16.000 406 15.25 387 15.303 388.7 0.375 9.55400 40 X 15 381 15.084 383.15 0.5 12.7

60 X 14.688 373 14.811 376.2 0.656 16.6580 X X X 14.312 364 14.482 367.85 0.844 21.45100 X X X 13.938 354 14.155 359.55 1.031 26.2120 X X 13.562 344 13.826 351.2 1.219 30.95140 X 13.124 333 13.442 341.45 1.438 36.55160 X X 12.812 325 13.17 334.5 1.594 40.5

18 40 X 18.000 457 16.876 429 16.975 431.15 0.562 14.25450 60 X 16.500 419 16.646 422.8 0.75 19.05

80 X X 16.124 410 16.318 414.5 0.938 23.85100 X X X 15.688 398 15.936 404.75 1.156 29.35120 X X X 15.250 387 15.553 395.05 1.375 34.95140 X X X 14.876 378 15.225 386.7 1.562 39.65160 X X 14.438 367 14.842 377 1.781 45.25

20 40 X 20.000 508 18.812 478 18.92 480.55 0.594 15.1500 60 X 18.376 467 18.538 470.85 0.812 20.6

80 X X 17.938 456 18.155 461.15 1.031 26.2100 X X X 17.438 443 17.717 450 1.281 32.55120 X X X 17 432 17.334 440.3 1.5 38.1140 X X X 16.5 419 16.896 429.15 1.75 44.45160 X X 16.062 408 16.513 419.45 1.969 50

22 STD X 22.000 559 21.25 540 21.303 541.1 0.375 9.55550 XS X 21 533 21.084 535.55 0.5 12.7

60 X X 20.25 514 20.428 518.85 0.875 22.2580 X X 19.75 502 19.99 507.75 1.125 28.6100 X X X 19.25 489 19.553 496.65 1.375 34.95120 X X X 18.75 476 19.115 485.5 1.625 41.3140 X X 18.25 464 18.678 474.4 1.875 47.65160 17.75 451 18.24 463.3 2.125 54

24 STD 24.000 610 23.25 591 23.303 591.9 0.375 9.55600 XS 23 584 23.084 586.35 0.5 12.7

30 X 22.876 581 22.975 583.55 0.562 14.2540 X X 22.624 575 22.755 578 0.688 17.560 X X 22.062 560 22.263 565.5 0.969 24.680 X X X 21.562 548 21.826 554.4 1.219 30.95100 X X X 20.938 532 21.28 540.5 1.531 38.9120 X X X 20.376 518 20.788 528 1.812 46140 X X X 19.876 505 20.35 516.9 2.062 52.35160 X X 19.312 491 19.857 504.35 2.344 59.55

Buttwelding EndsBold face numerals are in inches.Blue numerals are in millimeters.


Edward Valves

J Maintenance Section J

EV-1004th Edition

Maintenance

OUR FACILITY OFFERS

• Mobile machine shop trailer for on-site repairs

• After hours plant basedservice team for around theclock coverage

• Expertly trained field service personnel capable ofhandling any size fieldservice job

• Special equipment for seatrefinishing, body boring, welding, and stressrelieving

• In-house valve repair andreturn remanufacturing tooriginal specifications withnew valve warranty

• Experience in turn key jobsto help the customer withone stop shopping

• 180,000 Sq. Ft.manufacturing facility withstate of the art machiningand engineering capability

• Edward Valves is ISO 9001certified

J

EDWARD VALVESON-SITE FIELD SERVICE REPAIR CAPABILITIES

Edward Valves is totally committed to customer service satisfaction.Our entire manufacturing operation guarantees we will stand behind all fieldservice repair work to maximize customer support.

Edward Valves • 1900 South Saunders Street, Raleigh, North Carolina 27603 • 1-800-225-6989 • 1-919-832-0525 • Fax 1-919-831-3369 J2

Maintenance

STAYING ON-LINE WITH EDWARD VALVESWe design and manufacture all ourvalves for 40 years’ life in the field. Thatmeans not just building a reliableproduct, but one that is easy tomaintain and service. It also meansproviding a team of experienced,dedicated professionals to keep yourEdward valves operating at peakperformance.

Highly Experienced TechniciansEdward brings unmatched experienceto the field. Our service technicianshave an average 20 years in theindustry, and 15 years with Edward.Each has special skills, such aswelding and machining, that we cantarget for the needs of the individualjob.

Comprehensive Record-KeepingOur files include original specificationsfor every Edward valve sold since1908. All valves are coded for easyidentification. On new and replacementorders, Edward stands ready to

provide the complete lot-traceabilityrequired for nuclear and other criticalservices.

In-Line ServiceWe are dedicated to on-site servicewhenever possible. To this end, we notonly provide highly experienced, expertpersonnel we also support thosetechnicians with field equipment,including portable boring, lapping,welding, and weld-cutting machines.Major parts, such as disks or bonnets,can be air-shipped back to the factoryfor service, and repaired while servicepersonnel perform other tasks.

Parts ReplacementOur comprehensive record-keepingsystem also facilitates replacement ofparts.Our computer database can quickly tellus if we have the part in stock or onorder, or how we can best coordinateraw materials and factory resources forthe quickest possible turn-around time.

New one year WarrantyOn all valves repaired to Edward’sstandards, we will issue a new one-year warranty, identical to the warrantyissued for new valves.

Factory Repair & UpgradingOur After Hours Coverage Team(AHCT) specialists are on call aroundthe clock, seven days a week, todeliver on our commitment to provideimmediate response to our customers’requirements. Whether your require-ments are for a planned outage,preventive maintenance or anemergency demand, Edward willremanufacture or upgrade valves to theoriginal or most current specification.Our in-house engineering and qualityassurance support is committed to meetthe required turn-around time.

Planned & Emergency OutagesOur service managers will coordinatescheduled maintenance, and also gettechnical assistance to your facilityquickly for emergency needs.

J

Master machinist (left) provides emergency in-house service. Edward offers many portablelapping tools, and power-driven steel cuttersand seat-refinishing tools (center) to facilitatevalve repair. New Scheiss Pensotti machinecenter to support quick turn emergency partsproduction. (right)

EDWARD VALVES.THERE IS NO EQUAL.

Phone Toll Free24 Hours a Day365 Days a Year

(Day) 1-800-225-6989(Night) 1-800-54-EDWARD

Edward Valves • 1900 South Saunders Street, Raleigh, North Carolina 27603 • 1-800-225-6989 • 1-919-832-0525 • Fax 1-919-831-3369 J3

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