bb 1 bb 2 - fagerberg · 8 important notes safety note the valve must only be installed by...

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BB 1...BB 2...

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Installation and MaintenanceInstructions 810677-01Dual-Plate Check Valves BB 1..., BB 2...

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Contents

Usage for the intended purpose ................................................................................... 8Safety note ..................................................................................................................... 8Warning ......................................................................................................................... 8Ratings pursuant to article 9 of the PED ....................................................................... 9

Important Notes

Page

Explanatory Notes

Scope of supply ........................................................................................................... 10Description .................................................................................................................. 10Function ....................................................................................................................... 10Technical data ...................................................................................................... 11–12Corrosion resistance ................................................................................................... 12Sizing ........................................................................................................................... 12Name plate / marking .................................................................................................. 13

Springs ........................................................................................................................ 14BB 1..., BB 2... ............................................................................................................... 14BB 1... with dampers, BB 2... with dampers ................................................................. 14Installation note ........................................................................................................... 15

Installation

Maintenance

BB 1 ... : Changing springs and O rings ................................................................ 17–18Tools ............................................................................................................................ 18BB 2... : Changing springs .................................................................................... 19–21Tools ............................................................................................................................ 21Torques ................................................................................................................. 22–24

Spare parts list ....................................................................................................... 25, 26

Spare Parts

BB 1..., BB 2... ............................................................................................................... 16

Commissioning

BB 1..., BB 2... ............................................................................................................... 16

Operation

Declaration of Conformity ............................................................................................ 27

Annex

3

Component Parts BB 1...

Fig. 1

I

H

B DC

A

E

G

J

A

G

I

H

F

J

A

4

Component Parts BB 2...

Fig. 2

F

L

K

L

D C

J

H

G

H

I

K

G

J

I

B

5

Component Parts BB 1... with dampers

Fig. 3

I

E

HM

B DC

A

E

G

J

A

G

I

H

F

J

A

6

Sealing plug with gasket

Eyebolt

Name plate

Body

Plate support

O-ring

Semi-circular valve plates

Spring

Spring

Hinge pin

Hinge pin support

Threaded bolt

Damper (cpl.) with gasket

Key

F

G

H

I

J

K

L

M

A

B

C

D

E

7

Pressure Drop Chart

Fig. 4

8

Important Notes

Safety note

The valve must only be installed by qualified staff.Qualified staff are those persons who – through adequate training in engineerng, theuse and application of safety equipment in accordance with regulations concerningsafety systems, and first aid & accident prevention – have achieved a recognisedlevel of competence appropriate to the installation and commissioning of this device.

Danger

The valve is under pressure during operation.When loosening flanged connections or sealing plugs, hot water, steam,corrosive liquids or toxic gases may escape. This presents the danger ofsevere burns and scalds to the whole body or severe cases of poisoning.Installation and maintenance work should only be carried out when thesystem is depressurized.The valve becomes hot or extremely cold during operation. This presentsthe risk of severe burns to hands and arms. Installation and maintenancework should only be carried out at room temperatures.Sharp edges on internals present a danger of cuts to hands. Always wearindustrial gloves for installation and maintenance work.

Usage for the intended purpose

The swing and dual-plate check valves BB ensure unidirectional flow in pipes bypreventing a backflow of liquids or gases.Use this equipment only within the specified pressure and temperature ratings andcheck corrosion resistance and chemical suitability for the application in question.

9

Ratings pursuant to article 9 of the PED1)

Important Notes – continued –

Gas Liquid

Category I II III IV

Nominal size [mm] DN DN DN DN DN

BB 11/21 G, PN 6 150 200–500 600–800

BB 11/22 G, PN 10 150–350 400–500 600–800

BB 14/24 G, PN 16 150–200 250–300 350–800

BB 12/22 A, C, PN 10 100 125–350 400–800

BB 14/24 A, C, PN 16 100–200 250–800

BB 15/25 A, C, PN 25 100–125 150–800

BB 16/26 A, C, PN 40 100 125–800

BB 17 A, C, PN 63 100 125–500

BB 18 A, C, PN 100 100 125–500

BB 19 A, C, PN 160 150–300

BB 12/22 M, PN 10 150–350 400–600

BB 14/24 M, PN 16 150–200 250–600

BB 15/25 M, PN 25 150–600

BB 16/26 M, PN 40 150–600

CE marking no yes yes yes no

Exception pursuant to article 3.3

Fluid group1 2 1 2

Use

BB 12/21 G, PN 6to no yes no yesBB 14/24 G, PN 16

BB 12/22 A, C, PN 10to yes yes yes yesBB 19 A, C, PN 160

BB 12/22 M, PN 10to yes yes yes yesBB 16/26 M, PN 40

1) PED = Pressure Equipment Directive

10

Swing and dual-plate check valves BB feature two separately suspended semi-circular plates pivoting on an independent hinge pin. The two plates open and closeautomatically allowing fluid to flow in one direction only. The opening pressure andclosing time can be customized by modifying the spring characteristic. Hydraulicdampers are also available as optional extras to solve waterhammer problems.Installation in any position, with due regard to our installation recommendations.Our dual-plate check valves are fitted with eyebolts for easy installation and transitprotection.Please note that dual-plate check valves should not be used on reciprocatingcompressors, piston pumps or where pulsating flow exists.

The low opening pressure of the dual-plate check valves is a function of the springcharacteristics. When the opening pressure is reached the hinge sides of the platesopen first, thereby eliminating any possibility of the seats scuffing. As the pressureand flowrate rise, the opening angle increases symmetrically. Media entering thevalve at an unfavourable angle (e. g. due to pipe bends) may cause an asymmetricalopening of the plates. If centrifugal pumps are installed upstream of the valve itbecomes necessary to arrange for a defined stabilizing section. Systems wherepulsating flow exists require specially designed dual-plate check valves. Make sureto install valves which are not fitted with springs in a vertical position with downwardflow. Please note the installation recommendations outlined in the following pages.

Function

Scope of supply

Explanatory Notes

BB 1...1 Dual-plate check valve type BB 1...1 Installation manual

BB 2...1 Dual-plate check valve type BB 2...1 Installation manual

BB 1... D1 Dual-plate check valve type BB 1... with dampers1 Installation manual

BB 2... D1 Dual-plate check valve type BB 2... with dampers1 Installation manual

Description

11

Pressure/ temperature ratings*) for BB, carbon steel down to –10 °Cat nominal pressurep-t series to EN 1092-2, table 17, material group 3E0, DN 150-500 mm (BB 19C, DN 150-300 mm)

Temperature [°C] 20 100 150 200 250 300 350 400 450 500 550 PN

BB 17 C [bar] 63 58.5 54.6 47.6 44.8 40.6 37.8 36.4 63

BB 18 C [bar] 100 93.3 86.7 75.6 71.1 64.4 60.0 57.8 100

BB 19 C [bar] 160 149.3 138.7 121.0 113.8 103.0 96.0 92.5 160

Pressure/ temperature ratings*) for BB, grey cast iron down to –10 °Cat nominal pressurep-t series to EN 1092-2, table 17, quality class 250, DN 150-800 mm

Temperature [°C] 20 100 150 200 250 300 350 400 450 500 550 PN

BB 11 G, BB 21 G [bar] 6 6 5.4 4.8 4.2 3.6 6

BB 12 G, BB 22 G [bar] 10 10 9.0 8.0 7.0 6.0 10

BB 14 G, BB 24 G [bar] 16 16 14.4 12.8 11.2 9.6 16

Pressure/ temperature ratings*) for BB, carbon steel down to –10 °Cat nominal pressurep-t series to EN 1092-1, table 15, material group 4E0, DN 150-800 mm

Temperature [°C] 20 100 150 200 250 300 350 400 450 500 550 PN

BB 12 C, BB 22 C [bar] 10 10 10 9.6 8.9 7.6 7.1 6.7 6.4 10

BB 14 C, BB 24 C [bar] 16 16 16 15.3 14.2 12.1 11.4 10.7 10.3 16

BB 15 C, BB 25 C [bar] 25 25 25 23.9 22.2 18.9 17.8 16.7 16.1 25

BB 16 C, BB 26 C [bar] 40 40 40 38.2 35.6 30.2 28.4 26.7 25.8 40

Technical Data

Explanatory Notes – continued –

*) When used for its intended purpose.

*) When used for its intended purpose. If t > 300°C spring 7 WAI required.


Pressure/ temperature ratings*) for BB, molybdenum-free stainless steeldown to –200 °C at nominal pressurep-t series to EN 1092-1, table 18, material group 12E0, DN 150-600 mm

Temperature [°C] 20 100 150 200 250 300 350 400 450 500 550 PN

BB 12 M, BB 22 M [bar] 10 9.3 8.7 8.2 7.8 7.4 7.2 6.9 6.8 6.6 6.3 10

BB 14 M, BB 24 M [bar] 16 14.9 13.9 13.2 12.4 11.9 11.4 11.1 10.8 10.6 10.1 16

BB 15 M, BB 25 M [bar] 25 23.3 21.7 20.6 19.4 18.6 17.9 17.3 16.9 16.6 15.8 25

BB 16 M, BB 26 M [bar] 40 37.3 34.7 32.9 31.1 29.7 28.6 27.7 27.0 26.5 25.2 40


12

Pressure/ temperature ratings*) for BB, grey cast iron,cast steel down to –10 °C at nominal pressure

Dual-plate check valve BB with LEVASINT® or hard rubber lining

Temperature [°C] –10 LEVASINT® Hard rubber PNmax. 70 max. 90

BB 11 G, BB 21 G [bar] 6 6 6 6

BB 12 G, BB 22 G [bar] 10 10 10 10

BB 14 G, BB 24 G [bar] 16 16 16 16

BB 12 C, BB 22 C [bar] 10 10 10 10

BB 14 C, BB 24 C [bar] 16 16 16 16

Technical Data – continued –


Pressure/temperature ratings*) for BB, stainless steel down to –105 °Cat nominal pressure

p-t series to EN 1092-1, table 18, material group 12E0, DN 150-800 mm(BB 19 A, DN 150-300 mm)

Temperature [°C] 20 100 150 200 250 300 350 400 450 500 550 PN

BB 12 A, BB 22 A [bar] 10 9.3 8.7 8.2 7.8 7.4 7.2 6.9 6.8 6.6 6.3 10

BB 14 A, BB 24 A [bar] 16 14.9 13.9 13.2 12.4 11.9 11.4 11.1 10.8 10.6 10.1 16

BB 15 A, BB 25 A [bar] 25 23.3 21.7 20.6 19.4 18.6 17.9 17.3 16.9 16.6 15.8 25

BB 16 A, BB 26 A [bar] 40 37.3 34.7 32.9 31.1 29.7 28.6 27.7 27.0 26.5 25.2 40

BB 17 A [bar] 63 58.8 54.6 51.8 49.0 46.8 45.1 43.7 42.6 41.7 39.8 63

BB 18 A [bar] 100 93.3 86.7 82.2 77.8 74.2 71.6 69.3 67.6 66.2 63.0 100

BB 19 A [bar] 160 149.3 138.7 131.5 124.5 118.7 114.6 110.9 108.2 105.9 101.0 160


*) When used for its intended purpose.

Corrosion Resistance

When used for its intended purpose the safe functioning of the steam trap will not beimpaired by corrosion.

Sizing

The valve body must not be subjected to sharp increases in pressure. Welds andflanges of the valve are designed to withstand dynamic loading (bending andalternative stress). The dimensional allowances for corrosion reflect the latest state oftechnology.

LEVASINT® is a registered trademark of Bayer AG, Leverkusen.

13


Name Plate / Marking

Direction of flow

For further ratings to EN 19 see valve body.

Type code BB 1... as specified by EN ISO 26552

Direction of flow

For further ratings to EN 19 see valve body.

Type code BB 2... as specified by EN ISO 26552

Fig. 5

Fig. 6

22002 indicates the manufacturing year 2002.

22002 indicates the manufacturing year 2002.

14

Installation

Springs

Note

Depending on the volume flow, the dual-plate check valve opens eithercompletely or only partly. During partial opening, i. e. at a reduced volumeflow (cf. pressure drop chart – instable range), clatter may occur whichgives rise to wear on the valve seat and plates, Fig. 4.Installing a dual-plate check valve with spring type “5 VO” in horizontallines or vertical lines with upward flow may result in loud noises, scuffingand subsequent wear on the seat.

BB 1..., BB 2...

1. Please note our installation recommendations on page 15.2. Clean plate seats.3. Horizontal flow: Insert flange bolts through bottom flange bore and tighten nuts.

Use off-the-shelf seals.4. Mount and align dual-plate check valve BB, making sure that the eyebolt is on

top. Insert and tighten flange bolts.5. Vertical flow: Insert commerical grade seals (bottom).6. Mount and align dual-plate check valve BB. Insert off-the-shelf seals (top). Insert

and tighten flange bolts.

The dual-plate check valve BB 1..., BB 2... with standard springs may be fitted inhorizontal pipework or in vertical pipework with upward flow. For downward flowspecial springs are required. For more information refer to our data sheet “Dual-Plate Check Valve BB”.

Spring “7 WA”Spring for 7 mbar opening pressure, suitable for horizontal installation or verticalinstallation with upward flow.

Spring “2 WA”Spring for 2 mbar opening pressure, suitable for horizontal installation or verticalinstallation with upward flow.

Spring “5 VO”Spring for 5 mbar opening pressure, suitable for horizontal installation or verticalinstallation with downward flow.

BB 1... with dampers, BB 2... with dampers

1. Please note our installation recommendations on page 15.2. Use only the eyebolt as aid for installaing the valve. Do not attach steel or nylon

slings to damping cylinder .3. Do not tread on damping cylinder .4. Proceed as described under “BB 1..., BB 2...” .

B

M

B

M

15

Installation – continued –

Fig. 9

Fig. 7 Fig. 8

Fig. 10

incorrect correct

optimum with pump

16

Dual-plate check valves BB... do not require special preparations prior to theircommissioning. If the springs or O-rings of the dual-plate check valves BB 1... havebeen replaced check plugs for positive sealing and, if necessary, retighten them.Please refer to pages 22 to 24 for information on torques.If the dual-plate check valves BB... have not been properly positioned in the pipeworkor are fitted with unsuitable springs the consequent vibrations and clattering of theplates will give rise to loud noises. In this case either increase the capacity of thepump or replace the springs by suitable ones. Please observe the installlation notes.Do not attach objects to or tread on the damping cylinders of the dual-plate checkvalves BB with dampers.

Operation

BB 1..., BB 2...

BB 1..., BB 2...

Commissioning

A

If the dual-plate check valves BB... have not been properly positioned in thepipework or are fitted with unsuitable springs the consequent vibrations andclattering of the plates will give rise to loud noises. In this case either increase thecapacity of the pump or replace the springs by suitable ones. Please observe theinstalllation notes.Do not attach objects to or tread on the damping cylinders of the dual-plate checkvalves BB with dampers.

M

M

17

Maintenance

Replacing springs /O-rings of the BB 1...

Danger

Note that springs are preloaded, which means that they can jump out ofthe plate body when the valve is being installed or removed.This presents the risk of injuries to hands, arms and face.

GESTRA dual-plate check valves BB ... do not require any special maintenance.However, in certain cases (cf. “Commissioning”) it might be necessary to replace thesprings or O-rings.

Dual-plate check valve BB 1... Undo screws, remove springs and withdrawhinge pins.

Take out springs, semicircular plates,support plates and, if fitted, O-rings.

Insert new springs with tension plates andhinge pins.

2

43

1

18

Maintenance – continued –

Replacing springs / O-rings of the BB 1... – continued –

Tools

■ Spanner socket A. F. 17, 19, 22, 24 mm to DIN 3124■ Hexagon socket spanner A. F. 5, 6, 10, 12 mm to ISO 2936■ Torque spanner 10-60 Nm, 60-120 Nm, DIN ISO 6789

Screw in and tighten screws. Remove tension plates.

Install dual-plate check valve BB 1...

7

5 6

19

Dual-plate check valve BB 2... Undo threaded bolts, turn semicircular platesto the left.

Take out semicircular plates, springs andsupport plates.

Remove support plates, cover springs andwithdraw hinge pins.

Danger

Note that springs are preloaded, which means that they can jump out ofthe plate body when the valve is being installed or removed.This presents the risk of injuries to hands, arms and face.


Replacing springs of the BB 2...

2

3

1

4

20


Replacing springs of the BB 2... – continued –

Insert new springs using tension plates.Fit hinge pins and support plates.

Align support plates.

Remove tension plates. Insert semicircular plates with springs andsupport plates.

7

5 6

8

21


Replacing springs of the BB 2... – continued –

Tools

■ Spanner socket A. F. 17, 19, 22, 24 mm to DIN 3124■ Hinged face spanner A. F. 2-8 mm (for valves with polymer/hard rubber lining)■ Torque spanner 10-60 Nm, 60-120 Nm, DIN ISO 6789

Align semicircular plates. Insert and tightenthreaded bolts.

Mount dual-plate check valve BB 2...

9 10

22

Item DN [mm]BB 11... BB 12... BB 14... BB 15... BB 16... BB 17... BB 18... BB 19...

100 13 13 13 13 13 13

125 13 13 13 13 27 27

150 65 65 65

200 135 135 135

250 135 135 135

300 135 135 320

350 260 260

400 320 320

450 310 310 310 310 310

500 310 310 310 310 310 630 630

600 310 310 310 310 310 630 630

700 1080 1080 1080 1080 1080

800 2240 2240 2240 2240 2240

900 1940 1940 1940 1940 1940

1000 1940 1940 1940 1940 1940

1200 45 45 45 45 45


Torques [Nm]

A

Do not use lubricant for fastening bolts.

Austenitic steel

Item DN [mm]BB 21... BB 22... BB 24... BB 25... BB 26...

150 15 15 15 15 15

200 15 15 15 15 15

250 26 26 26 26 26

300 26 26 26 26 26

350 26 26 26 26 26

400 70 70 70 70 70

L


Austenitic steel

23

Item DN [mm]BB 11... BB 12... BB 14... BB 15... BB 16... BB 17... BB 18... BB 19...

100

125

150 27 27 27

200 58 58 58

250 58 58 58

300 58 58 230

350 110 110

400 230 230

450 310 310 310 310 310

500 310 310 310 310 310 460 460

600 310 310 310 310 310 460 460

700 460 460 460 460 460

800 940 940 940 940 940

900 1420 1420 1420 1420 1420

1000 1420 1420 1420 1420 1420

1200 19 19 19 19 19


Torques [Nm]

A


Bronze


150 17 17 17 17 17

200 17 17 17 17 17

250 28 28 28 28 28

300 28 28 28 28 28

350 28 28 28 28 28

400 78 78 78 78 78

L


Bronze

24


150 8 8 8 8 8

200 8 8 8 8 8

250 17 17 17 17 17

300 17 17 17 17 17

350 28 28 28 28 28

400 47 47 47 47 47


Torques [Nm]


150 7.5 7.5 7.5 7.5 7.5

200 7.5 7.5 7.5 7.5 7.5

250 15 15 15 15 15

300 15 15 15 15 15

350 26 26 26 26 26

400 42 42 42 42 42

L

Austenitic steel/Body covered with hard rubber lining or LEVASINT®

L


D

Bronze/Body covered with hard rubber lining or LEVASINT®D


LEVASINT® is a registered trademark of Bayer AG, Leverkusen.

25

F

Item DN

038543

Minimum purchasing quantity 20 pcs.

Two O-rings are required per valve. Contact your local dealer for small quantities.

Stock code

NBR PTFE

346779

342931

Stock code

342978

344372

344484

340825

038705

344714

037020

182719

122490

182114

344491

344592

175131

344715

343876

183105

Stock codeStock code

EPDM

100

125

150

200

250

300

350

400

450

500

600

700

750

800

038982

346778

342711

342713

342523

038718

342569

342585

180962

036007

180210

343603

342120

181939

037847

346777

342598

342710

342522

182574

342565

036002

036003

036987

344939

039663

Spare Parts

Spare Parts List

FPM

343721

342584

038948

26

Spare Parts – continued –

Spare Parts List

I

H

Item DN

348198

Springs complete with tension plates.

Contact your local dealer for small quantities.

Stock code

5 VO

348199

348209

Stock code

348211

348213

348215

348216

348217

348598

348600

Stock codeStock code

7 WA2 WA

100

125

150

200

250

300

350

400

450

500

600

700

750

800

348190

348191

348192

348193

348194

348195

348196

348197

348580

348581

348582

348583

348584

348585

348200

348201

248202

348203

348204

348205

348206

348207

348586

348587

348588

348589

348591

7 WAI

348220

348221

348222

348223

348224

348225

348226

348227

on request

on request

on request

on request

on request

on request

27

We hereby declare that the pressure equipment BB 1... and BB 2... conform to thefollowing European Directive:■ EC Pressure Equipment Directive (PED) No. 97/23 of 29 May 1997Dual-plate check valves are pressure equipment as defined in article 1, section 2.1.4of the PED.Applied conformity assessment procedure for valves up to DN 300 mm: Module A1as described in Annex III.Applied conformity assessment procedure for valves larger than DN 300 mm:Module H as described in Annex III and verified by the Notified Body 0525.

This declaration is no longer valid if modifications are made to the equipmentwithout consultation with us.

Declaration of Conformity

Bremen, 16th July 2001GESTRA GmbH

Annex

Quality Assurance RepresentativeLars Bohl

Head of the Design Dept.Uwe Bledschun

Academically qualified engineer

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GESTRA GmbH

Postfach 10 54 60D-28054 BremenMünchener Str. 77D-28215 BremenTel. +49 (0) 421 35 03-0Fax +49 (0) 421 35 03-393E-mail [email protected] www.gestra.de

A Unit of Flowserve Corporation

Polska

GESTRA POLONIA Spolka z o.o.Ul. Schuberta 104, P. O. Box 71PL-80-172 GdanskTel. 00 48 58 / 306 10 02 oder 306 10 10Fax 00 48 58 / 306 10 03 oder 306 33 00E-mail: [email protected]

Italia

Italgestra S.r.l.Via Carducci 125l-20099 Sesto San Giovanni (MI)Tel. 00 39 02 / 24 10 12.1Fax 00 39 02 / 24 10 12.460E-mail: [email protected]

GESTRA ESPAÑOLA S.A.Luis Cabrera, 86-88E-28002 MadridTel. 00 34 91 / 5 152 032Fax 00 34 91 / 4 136 747; 5 152 036E-mail: [email protected]

España

Flowserve Flow Control S. A. S.10 Avenue du Centaure, BP 8263F-95801 CERGY PONTOISE CEDEXTél. 0 03 31 / 34 43 26 60Fax 0 03 31 / 34 43 26 87E-mail: [email protected]

France Portugal

Flowserve Portuguesa, Lda.Av. Dr. Antunes Guimarães, 1159Porto 4100-082Tel. 00351 22 / 6 19 87 70Fax 00351 22 / 6 10 75 75E-mail: [email protected]

®

810677-01/1202c · © 2001 GESTRA GmbH · Bremen · Printed in Germany

bb 1 bb 2 - fagerberg · 8 important notes safety note the valve must only be installed by...

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