mss sp-43 wrought stainless steel butt-welding fittings

STD-MSS S P - 4 3 - E N L L 1941 H 5’771iL40 !I5ULiiiin I L i 5 II

MSS SP-43-1991 Reaffirmed 2001

Wrought Stainless Steel Butt-welding Fittings

Including Reference to Other Corrosion Resistant Materials

Standard Practice Developed and Approved by the Manufacturers Standardization Society of the Valve and Fittings Industry, Inc. 127 Park Street, NE Vienna, Virginia 22180 (703) 281-6613

COPYRIGHT Manufacturers Standardization Society of the Valve and FittingsLicensed by Information Handling ServicesCOPYRIGHT Manufacturers Standardization Society of the Valve and FittingsLicensed by Information Handling Services

MSS STANDARD PRACTICE SP-43

This MSS Standard Practice was developed under the consensus of the MSS Technical Committee 1 13 and the MSS Coordinating Committee. The content of this Standard Practice is the result of the efforts of competent and concerned volunteers to provide an effective, clear, and non-exclusive specification that will benefit the industry as a whole. This MSS Standarù Practice is intended as a basis for common practice by the manufacturer, the user, and the general public. The existence of an MSS Standard Practice does not in itself preclude the manufacture, sale, or use of products not conforming to the Standard Practice. Mandatory conformance is established only by reference in a code, specification, sales contract, or public law, as applicable.

Unless otherwise specifically noted in this MSS SP, any standard referred to herein is identified by the date of issue that was applicable to the referenced standard(s) at the date of issue of this MSS SP. (See Annex B .)

Any part of this standard may be quoted Credit lines should read ‘Extractedfiom, ABS-43-1991 (Reaflrmed 2001), with permission of the publisher, the Manufacturers Standardization Society. ’ Reproduction prohibited under copyright convention unless written permission is granted by the Manufacturers Standardization Society of the Valve and Fittings Industry, Inc.

Originally Approved October, 1950

Copyright @ 1982 by Manufacturers Standardization Society

of the Valve and Fittings industry, Inc.

Printed in U.S.A.

1


FOREWORD

ASME B16.9 is the American Standard for steel butt-welding fittings and although not so stated, it is implied that its scope deals primarily with the schedules of wall thicknesses which are common to carbon steel and the grades of alloy steel piping that are selected for pressure and temperature considerations.

The rapid expansion of the process industries in the field of chemicals, plastics, textiles, etc., has created a demand for a class of pipe referred to as stainless piping, using this word in its generic sense. This field employs the use of the austenitic stainless steels and also nickel and its related alloys. This stainless piping is used with resistance to corrosion, elimination of product contamination, or combination of the two as the principle reason for material selection. Pressure is seldom, if ever, a critical consideration.

When pressure is a consideration reference is made to ASME B 16.9.

Mechanical strength, resistance to vacuum, and economy,. are the most usual criteria in the selection of pipe thickness in this field, and for this reason the wall thicknesses employed in the field of corrosion resistant pipe are lighter than those in common usage with carbon steel piping.

In 1949 ANSI approved standard B36.19 Stainless Steel Pipe in which a schedule of wall thickness was established and designated as Schedule 10s. Numerous companies were also using a wall thickness lighter than Schedule 10s for services where contamination rather than corrosion was the prime consideration. These lighter wall thicknesses were designated Schedule 5s and the original 1950 edition of SP-43 established a series of Schedule 5s fittings. The 5s thicknesses were published in SP-43 and were developed in cooperation with representatives of the various principal chemical companies and processing industries. In 1952 the Stainless Steel Pipe Standard B36.19 was revised to recognize the Schedule 5s wall thickness pipe as American Standard.

The purpose of this standard is to provide industry with a set of dimensional standards for butt-welding fittings that can be used with these light wall pipes of corrosion resisting materials. The center-to-end dimensions of all fittings are identical with those in ASME B16.9 which give to industry the advantage of uniform design room practice and a maximum utilization of existing die equipment. The only departure from this is in the lapjoint stub end where for purposes of economy the face-to-end of the product has been reduced for use with thin wall piping.

The advantage of longer center-to-end dimensions of the size 3/4 elbows resulted in the change in the tables to permit a gradual changeover, providing the manufacturers ample time to deplete existing stocks, re-tool and replenish stocks.

The 199 1 revision of the SP was required to delete the metric equivalents.

The 2001 Reaffirmation had no technical changes. There were minor editorial changes. The precedence of the longer dimensions for 3/4 elbows was made in accord with ASME B16.9. Referenced standards were brought up to date. The title of 180 degree returns was clarified.

n


MSS

~~ ~~

STB.MSS SP-43-ENGL 1771 S 577Clb ‘40 0501~4~3 7T4 S STANDARD PRACTICE SP-43

TABLE OF CONTENTS

SECTION PAGE

.. FOREWORD ............................................................................................................................ i1

TABLE OF CONTENTS ....................................................................................................... 111

1 SCOPE ................................................................................................................................... 1 2 REFERENCES ...................................................................................................................... 1 3 PRESSURE RATINGS .......................................................................................................... 1

...

4 5 6 7 8 9

10 11 12

SIZE ....................................................................................................................................... 1 MARKING ............................................................................................................................ 1 MATERIALS ......................................................................................................................... 2 METAL THICKNESS ............................................................................................................ 2 FITTING DIMENSIONS ....................................................................................................... 2 TESTS ................................................................................................................................... 2 TOLERANCES ...................................................................................................................... 2 WELDING BEVEL ............................................................................................................... 2 FINISH AND HEAT TREATMENT ...................................................................................... 2

TABLE 1 2 3 4 5 6

A l

ANNEX A B

Tolerances .......................................................................................................... 3 Dimensions of Long Radius Elbows ........................................................................ 4 Dimensions of Straight and Reducing-on-the-Outlet Tees .......................................... 5 Dimensions of Lap-Joint Stub Ends and Caps .......................................................... 7 Dimensions of Long Radius 180 Degree Returns ............................................................... 8 Dimensions of Concentric and Eccentric Reducers ................................................... 9 Dimensions of Welded and Seamless Stainless Steel Pipe ........................................ 10

Dimensions of Welded and Seamless Stainless Steel Pipe ......................................... 10 List of Referenced Standards and Applicable Dates ......................................................... 11

... lll


MSS STD-MSS SP-43-ENGL 1941 E 5770b40 05UL‘144 A39 E

STANDARD PRACTICE SP-43

WROUGHT STAINLESS STEEL, BUTT-WELDING FITTINGS

1. SCOPE

1.1 This Standard covers overall dimensions, tolerances, and markings for wrought stainless steel butt-welding fittings. In this standard ‘tvro~ght’~ is used to denote fittings made of pipe, tubing, plate, bar, sheet, strip or forgings.

1.2 This Standard covers only fittings made for use with Schedule 5s or 10s pipe as given in ASME B36.19M, except that short pattern stub ends suitable for use with Schedule 40s are also shown.

1.3 Annex A. Table Al lists the dimensions of stainless steel pipe with which these fittings are intended to be used.

I 2. REFERENCES

2.1 Standards and specifications adopted by reference in this standard are shown in Annex B for convenience of identifjing edition number, date, and source of supply.

3. PRESSURERATINGS

3.1 Fittings produced under this standard shall carry the following ratings: [Schedule 5s piping is not recommended for use at temperatures above

I 400° FI.

Temp

F -

100 150 200 250 300 350 400 450 500 550 600 650 700 750

PSI

I os 275 255 240 225 210 195 180 165 150 140 130 120 I10 100

5s

225 215 200 190 175 165 150 -

- - -

- - -

3.2 Fabricated Tees employing intersection welds shall be considered in this standard and shall be rated at 70% of these ratings.

3.3 For fittings of same pressure rating of match- ing pipe, refer to ASME B 16.9.

t4. SIZE

4.1 The size of the fittings in Tables 1 through 6 and Annex A is identified by the corresponding nominal pipe she.

5. MARKING

5.1 Each fitting shall be marked to show the following:

a) Manufacturer’s name or trademark b) “CR” followed by the material identifica-

tion symbol established for the respec- tive grade in the appropriate ASTM or AiSI specifications. Scheduie number or nominal wall thickness designation.

c)

d) Size

5.2 Where the size of fittings does not permit com- plete marking, the identification marks may be omit- ted in the sequence specified in MSS SP-25.

5.3 Method of Marking - The manufacturer’s name or trademark, thickness, the grade identification symbol, and size shall be marked by any suitable method not injurious to the fitting.

1


MSS STD=MSS SP-Li3-ENGL 1771 W 577flb40 050LtlLi5 777


6.

7.

8.

9.

MATERIALS

6.1 Fittings made from AISI Type 304,304L, 347,316, and 316L are considered standard under this specification. Fittings to other specifications a~ available and should be made fiom material complying with the requirements of one of the recognized AISI analyses of ASTM specifications.

METAL THICKNESS

7.1 As these fittings are to match pipe, the dimensions of the welding ends must conform with established pipe standards as to outside diameters and tolerances. The nominal wall thickness of the fittings shall be the same as the pipe to which it is welded, except that fittings with heavier walls may be butt welded to lighter wall pipe provided the heavier wall is tapered on the inside or outside to match the dimensions of the lighter pipe.

FITTINGS DIMENSIONS

8.1 Inch dimensions for the fittings covered by this standard are given in Tables 1 through 6.

8.2 One of the principals of this standard is the maintenance of a fixed position for welding ends with reference to center line of the fittings or the overall dimensions as the case may be.

10.

11.

TOLERANCES

10.1 Table 1 lists the tolerances for the fittings covered by this standard.

WELDING BEVEL

1 1 .1 Fittings furnished to this standard may be finished with ends cut square for wall thickness 0.12 in. or less, For wall thicknesses in excess of O. 12 in., they shall be beveled at 37 1 /2" plus or minus 2 1 /2"; with root face (land) 0.06 in. plus or minus 0.03 in.

0.06 i n . 5 0.03 in.

T

Welding Bevel for "T" in excess of 0.1 2 in.

12. FINISH AND HEAT TREATMENT

12.1 The fittings shall be satisfactorily heat treated by an accepted practice, and adequately cleaned to insure maximum corrosion resistance.

9.1 Hydrostatic testing of fittings is not required in this standark however, fittings shall be capable of withstanding a hydrosîatic test pressure one and one-haif times the pressure ratings shown in Subsection 3.1 for 1OOOF.

2


MSS STD-MSS SP-43-ENGL 1771 E 5770b40 OSOL4'4b b03 =


v1 ro C

.CI

.5 a a O .-

B v1 a u

ln

w

2 2

O O

%D

iz t: .- i- - a

v) VI in

O +I +I +I +I +I +I

c! 2 2 3 c! c! 0 0; o O O

m 0 8 2 3 8 m m O O ò ò +I +I +I +I

8 +I

8 +I

VI v) v) in v) in c! c! c! c! O O O O O

+I +I +I +I +I +I ? o

v) v) 00 00 v) In c! c! c? '?

O + I a

2 +I

2 O O +I +I +I

" 8 8 8 0 0: o +I +I +I

8 5 o 8 +I +I +I

i s 8 8 8 8 8 o O 0; o 0 o +I +I +I +I +I +I

m a m o 0 % ô 2ô 8 8 O0 O 0 o 0 W m 9 O +I +I +I + I + I + I

3


TABLE 2 DIMENSIONS OF LONG RADIUS ELBOWS

Nominal Pipe Size

~

1 12 314

1 1-114 1-112

2 2-112

3 3-112

4

5 6 8 10 12

14 16 18 20 22 24

A and B Dimem

~

Outside Diameter At Bevel

0.84 1 .O5 1.32 1.66 1.90

2.38 2.88 3.50 4.00 4.50

5.56 6.62 8.62 10.75 12.75

14.00 16.00 18.00 20.00 22.00 24.00

Center-to-End 90 -Deg Elbows

A

1 S O 1 S O 1 S O 1.88 2.25

3.00 3.75 4.50 5.25 6.00

7.50 9.00 12.00 15.00 18.00

2 1 .o0 24.00 27.00 30.00 33.00 36.00

1s for size 3í4 may be as shown below

45-Deg Elbows

B

0.62 0.75 0.88 1 .o0 1.12

1.38 1.75 2.00 2.25 2.50

3.12 3.75 5.00 6.25 7.50

8.75 10.00 1 1.25 12.50 13.50 15.00

at the manufacturem option.

I Center-to-End 1 I 90 Degree Elbows A 45 Degree Elbows B 1

I 0.44 1 1.12 I

4


MSS

TABLE 3 DIMENSIONS OF STRAIGHT AND REDUCING- ON-THE-OUTLET TEES

Dimenaions in inchei

Nominal Pipe Si?&

i/:! Straight 314 Straight 1/4 x 314 x 1/2 I Strright 1 x 1 x3/4 1 x 1 x 1/2 i-i/4 Straight l-i/4 x 144 x I I-114~ I-l/4~ 3/4 I.114X I.I/4,x 112 1-112 Straight 1.112 x 1.112 x 1.114 1.112 x 1.112 x I 1.112 x 1.112 x 3/4

2 x 2 x 1-1/2 2 !hut

2 x 2 x 1-1/4 2X2Xl 2 x 2 x 3/4 2.112 Straight 2.112 x 2-1/2 x 2 2.112 x 2-1/2 x 1-1/2

2.112 x 2-112 x 1 3 Straifit 3 x 3 x 2-112 3 x 3 ~ 2 3 x 3 x 1.112 3-112 S t d @ S1/2 x 3-112 x 3 3.112 x 3-112 x 2-112 3.112 x 3-1/2 x 2 3-1/2 x 3-1/2 x 1-1/2

2-1/2~2-1/2 x 1-1/4

4 Straight 4 x 4 x 3-1/2 4X4X3 4 x 4 x 2-112 4 x 4 ~ 2 4 x 4 x 1-112 5 Straight 5X5X4 5 x 5 x 3-112 5 X 5 X 3

5 x 5 ~ 2 5 x 5 x 2-112

Nominul Outridc D1IIIKI(

Run

0.04 I .o5 I .o5 I .32 1.32 I .32 1-66 I .66 I .66 I .66 I .90 I .90 I .90 1.90 2.38 2.38 2.38 2.38 2.38 2.88 2.88 2.88 2.88 2.88 3.50 3.50 3.50 3.50 4.00 4.00 4.00 4.00 4.00 4.50 4.50 4.50 4.50 4.50 4.50 5.56 5.56 5.56 5.56 5.56 5.56

-

7

t &vel

Outlet

0.84 1.05 0.84 I .32 I .o5 0.84 I .66 I .32 I .o5 0.84 I .90 I .66 1.32 1 .o5 2.38 I .90 1-64 I .32 1 .o5 2.88 2.38 1.90 1.66 1.32 3.50 2.88 2.38 1.90 4.00 3.50 2.88 2.38 1.90 4.50 4 .o0 3.50 2.88 2.38 I .90 5.56 4.50 4.00 3.50 2.88 2.38

- Center-teEnd -

Run C

I .o0 1.12 1.12 I .so I .so I .so 1.88 I .88

1 .88 2.25 2.25 2.25 2.25 2.50 2.50 2.50 2.50 2.50 3.00 3.00 3.00 3 .o0 3.00 3.38 3.38 3.38 3.38 3.75 3.75 3.75 3.75. 3.75 4.12 4.12 4.12 4.12 4.12 4.12 4.88 4.88 4.88 4.88 4.88 4.88

-

i .a8

3utlet M

I .o0 1.12 1.12 I .so I .so 1 .so I .88 I .88 I .88 I .88 2.25 2.25 2.25 2.25 2.50 2.38 2.25 2.00 1.75 3.w 2.15 2.62 2.50 2.25 3.38 3.25 3 .00 2.88 3.75 3.62 3.50 3.25 3.12 4.12 4.00 3 .88 3.75 3.50 3.38 4.98 4.62 4.50 4.38 4.25 4.12

-

5


~ ~~

STDmMSS SP-43-ENGL 1971 PI 577Ubq0 05034q9 312 I STANDARD PRACTICE SP-43

TABLE 3 DIMENSIONS OF STRAIGHT AND REDUCING- ON-THE-OUTLET TEES (Continued)

Dimensions in inches Nominal Outside

Nominal I Diameter at Bevel Pipe Size

6 Straight 6 x 6 ~ 5 6 x 6 ~ 4

6 x 6 ~ 3

8 Straight 8 x 8 ~ 6 8 x 8.x 5 8 x 8 ~ 4 8 x 8 ~ 3-112

10 Straight l o x 1 0 x 8 10 x 10 x 6 1 o x 1 o x 5 10 x 10 x 4

12 Straight 12 x 12 x 10 12x 1 2 x 8 1 2 x 1 2 ~ 6 12 x 12 x 5

14 Straight 14 x 14 x 12 14 x 14 x 10 14 x 14 x 8 14 x 14 x 6

16 Straight 16 x 16 x 14 16 x 16 x 12 16 x 16 x 10 1 6 x 1 6 ~ 8 1 6 x 1 6 ~ 6

18 Straight 18 x 18 x 16 18 x 18 x 14 18 x 18 x 12 18 x 18 x 10 18 x 18 x 8

20 Straight 2 0 x 2 0 ~ 18 20 x 20 x 16 2 0 x 2 0 ~ 1 4 20X20X 12 20X20X 10 20 x 20 x 8

24 Straight 24 x 24 x 20 2 4 x 2 4 ~ 18 2 4 x 2 4 ~ 16 24 x 24 r 14 2 4 x 2 4 ~ 12 24 x 24 x 10

6 x 6 x 3-112

6 x 6 x 2-112

6.62 6.62 6.62 6.62 6.62 6.62

8.62 8.62 8.62 8.62 8.62

10.75 10.75 10.75 10.75 10.75

12.75 12.75 12.75 12.75 12.75

14.00 14.00 14.00 14.00 14.00

16.00 16.00 16.00 16.00 16.00 16.00

18.00 18.00 18.00 18.00 18.00 18.00

20.00 20.00 20.00 20.00 20.00 20.00 20.00

24.00 24.00 24.00 24.00 24.00 24.00 24.00

Outlet

6.62 5.56 4.50 4.00 3.50 2.88

8.62 6.62 5.56 4.50 4.00

10.75 8.62 6.62 5.56 4.50

12.75 10.75 8.62 6.62 5.56

14.00 12.75 10.75 8.62 6.62

16.00 14.00 12.75 10.75 8.62 6.62

18.00 16.00 14.00 12.75 10.75 8.62

20.00 18.00 16.00 14.00 12.75 10.75 8.62

24.00 20.00 18.00 16.00 14.00 12.75 10.75

Center-tc-End

Run C

5.62 5.62 5.62 5.62 5.62 5.62

7.00 7.00 7.00 7.00 7.00

8.50 8.50 8.50 8.50 8.50

1 o. O0 10.00 10.00 10.00 10.00 11.00 11.00 11.00 11.00 11.00

12.00 12.00 12.00 12.00 12.00 12.00

13.50 13.50 13.50 13.50 13.50 13.50

15.00 15.00 15.00 15.00 15.00 15.00 15.00

17.00 17.00 17.00 17.00 17.00 17.00 17.00

Outlet M

5.62 5.38 5.12 5 .o0 4.88 4.75

7.00 6.62 6.38 6.12 6.00

8.50 8.00 7.62 7.50 7.25

10.00 9.50 9.00 8.62 8.50

11.00 10.62 10.12 9.75 9.38

12.00 12.00 11.62 11.12 10.75 10.38

13.50 13.00 13.00 12.62 12.12 11.75

15.08 14.50 14.00 14.00 13.62 13.12 12.75

17.00 17.00 16.50 16.00 16.00 15.62 15.12


STD*MSS SP-43-ENGL 1991 9 5770bV0 0501450 03'4 E MSS STANDARD PRACTICE SP-43

Note b Note b

LapJoint Flange

Slip-On -f Flange

for SlipOn Flange

TABLE 4 DIMENSIONS OF LAP-JOINT STUB ENDS AND CAPS

~ ~~~

112 3/4

1 1-1/4 1-112 2 2-1/2 3 3-1/2 4 5 6 8

10 12 14 16 18 20 24

Nominal

Size pipe

NOTES:

Nominai O. D. at

Bevel ~~

0:84 1 .O5 1.32 1.66 1.90 2.38 2.88 3.50 4.00 4.50 5.56 6.62 8.62 10.75 12.75 14.00 16.00

20.00 24.00

i 8.00

Caps Length E

1 .o0 1 .o0 1 S O 1 S O 1 S O 1 S O 1.50 2.00 2.50 2.50 3.00 3.50 4.00 5.00 6.00 6.50 7.00

9.00 10.50

8.00

Dimensions in inches LaPJoint Stub Ends@)

Length F

2.00 2.00 2.00 2.00 2.00 2.50 2.50 2.50 3 .o0 3 .O0 3 .O0 3.50 4.00 5 .O0 6.00 6.00 6.00 6.00 6.00 6.00

Dia. of Lap4 Nominal & Maximum

~

1.38 1.69 2 .o0 2.50

3.62 4.12 5 .o0 5.50 6.19 7.31

10.62 12.75 15.00 16.25

21.00 23.00 27.25

2.88

8.50

18.50

Radius of Fillet A Nominal

0.12 0.12 0.12 0.19 0.25 0.3 1 0.3 1 0.38 0.38 0.44 0.44 0.50 0.50 0.50 0.50 0.50 0.50 0.50 0.50 0.50

0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.06 0.06 0.06 0.06 0.06 0.06 0.06 0.06 0.06 0.06

(') M i m lap thiciams SM not be less than nominai wall thiclaiess. @) Contact faces of stub ends shall have e modified spiral or concentric serration. (') Tbtsc lcngîhs and radii for usc with Schcduic 40s or t h i i pipe.

7


STDmNSS SP-43-ENGL 1771 577flbYU USOLY5L T’ICI 111 MSS STANDARD PRACTICE SP-43

Center-tdenter O

3.00

TABLE 5 DIMENSIONS OF LONG RADIUS 180 DEGREE RETURNS

Back-to-Face K

2.00 4

Dimensions in inches

Nominal Pipe Size

1 12 314

I 1-114 1-112

2 2-112 3 3-112

4 5 6 8

10 12 14 16

18 20 24

Outside Diameter At Bevel

0.84 1 .O5

1.32 1.66 1.90

2.38 2.88 3.50 4.00

4.50 5.56 6.62 8.62

10.75 12.75 14.00 16.00

i 8.00 20.00 24.00

Center- to-Center

O

3 .OO 2.25

3.00 3.75 4.50

6.00 7.50 9.00

10.50

12.00 15.00 18.00 24.00

30.00 36.00 42.00 48.00

54.00 60.00 72.00.

Back-to- F a d c )

K

1.88 1.69

2.19 2.75 3.25

4.19 5.19 6.25 7.25

8.25 10.3 1 12.31 16.31

20.38 24.38 28.00 32.00

36.00 40.00 48.00

NOTES:

(a) Alignment of ends - U -for nom pipe size 8 and smaller 20.03 in. and for size 10 and larger 10.06 in.

(b) “A” dimension is equal to 1/2 “O” dimension.

(‘1 O and K dimensions for size 3/4 may be as shown below at the manufacturer’s option.

8


STD=MSS SP-43-ENGL 1771 = 5770b40 05OLLi5r' 707 E

MSS STANDARD PRACTICE SP-43

TABLE 6

Nominal Pipe Size

314 x 112 I x 314 1 x 112 1 x 318

1 - 1 1 4 ~ 1 1-114 x 314 1-114 x 1/2

1 - 1 1 2 ~ 1-1/4 1-1/2x 1 1-1/2 x 314 1-112x 112

2 x 1-112 2 x 1-114 2 x 1 2 x 314

2112 x 2 2112 x 1-112 2112 x 1-114 2112x 1

3 x 2112 3 x 2 3 x 1.112

,112 x 3 3-1/2 x 2-112 3-112 x 2 3-1/2x 1-112 3-112 x 1-114

4 x 3-112 4 x 3 4 x 2112 4 x 2 4 x 1-112

5 x 4 5 x r i 1 2 5 x 3 5 x 2112 5 x 2

3 x 1-114

DIMENSIONS OF CONCENTRIC AND ECCENTRIC

Dimensions m mches

Outside Diameter a i -

Large End

1.05 1.32 1.32 1.32

1.66 1.66 1.66

1.90 1.90 1.90 1.90

2.38 2.38 2.38 2.38

2.88 2.88 2.88 2.88

3.50 3.50 3.50 3.50

4.00 4.00 4.00 4.00 4.00

4.50 4.50 4.50 4.50 4.50

5 ..5 6

5.56 5.56 5.56

5.56

V e l Small End

0.84 1.05 O. 84 0.68

1.32 1.05 0.84

1.66 1.32 1.05 O. 84

1.90 1.66 1.32 1 .o5

2.38 1.90 1.66 1.32

2.88 2.38 1.90 1.66

3.50 2.88 2.38 1.90 1.66

4.00 3.50 2.88 2.38 1.90

4.50 4.00 3.50 2.88 2.38

Length H

1.50 2.00 2.00 2.00

2.00 2.00 2.00

2.50 2.50 2.50 2.50

3.00 3.00 3.00 3.00 3.50 3.50 3.50 3.50

3.50 3.50 3.50 3.50

4.00 4.00 4.00 4.00 4.00

4.00 4.00 4.00 4.00 4.00

5.00 5.00 5.00 5.00 5.00

Nominal Pipe Size

6 x 5 6 x 4 6 x 3-112 6 x 3 6 x 2-112

8 x 6 8 x 5 8 x 4 8 x 3-112

1 0 x 8 1 0 x 6 10 x 5 1 0 x 4

1 2 x 10 12x 8 1 2 x 6 1 2 x 5

1 4 x 12 14 x 10 1 4 x 8 14 x 6

1 6 x 14 16 x 12 16x 10 16 x 8

18 x 16 18 x 14 18 x 12 18 x 10

20 x 18 20x 16 20x 14 20x 12

24 x 20 24x 18 24x 16

REDUCERS

Dimensions in inches ~ ~~~

Outside Diameter at Bi -

Large End

6.62 6.62 6.62 6.62 6.62

8.62 8.62 8.62 8.62

10.75 10.75 10.75 10.75

12.75 12.75 12.75 12.75

14.00 14.00 14.00 14.00

16.00 16.00 16.00 16.00

18.00 18.00 18.00 18.00

20.00 20.00 20.00 20.00

24.00 24.00 24.00

-

-

:I Smaü End

5.56 4.50 4.00 3.50 2.88

6.62 5.56 4.50 4.00

8.62 6.62 5.56 4.50

10.75 8.62 6.62 5.56

12.75 10.75 8.62 6.62

14.00 12.75 10.75 8.62

16.00 14.00 12.75 10.75

18.00 16.00 14.00 12.75

20.00 18.00 16.00

- Length

H

5.50 5.50 5.50 5.50 5.50

6.00 6.00 6.00 6.00

7 .O0 7.00 7.00 7.00

8.00 8.00 8.00 8.00

13.00 13.00 13.00 13.00

14.00 14.00 14.00 14.00

15 .o0 15.00 15.00 15.00

20.00 20.00 20.00 20.00

20.00 20.00 20.00

9


MSS STP-MSS SP-43-ENGL 1771 W 577Ob40 0501LI53 843 =


ANNEXA

TABLE A l DIMENSIONS OF WELDED AND SEAMLESS STAINLESS STEEL PIPE

Dimensions in inches

Outside Diameter

Nominal Pipe Size

1 /2 3 14

1 1-1/4 1-112 2 2-1/2 3 3-112 4 5 6 8

10 12 14 16 18 20 22 24 30

0.84 1 .O5 1.32 1.66 1.90 2.38 2.88 3.50 4.00 4.50 5.56 6.62 8.62

10.75 12.75 14.00 16.00 18.00 20.00 22.00 24.00 30.00

Nominal Wall Thickness Schedule Schedule

0.065 0.065 0.065 0.065 0.065 0.065 0.083 0.083 0.083 0.083 O. 109 O. 109 O. 109 O. 134 O. 156 O. 156 O. 165 0.165 O. 188 O. 188 0.218 0.250

0.083 0.083 O. 109 O. 109 O. 109 O. 109 o. 120 o. 120 0.120 o. 120 O. 134 o. 134 O. 148 O. 165 o. 180 O. 188 (b) 0.188 (b) 0.188 (b)

0.218 (b) 0.218 (b) 0.250 0.3 12

Schedule 40Sca)

O. 109 0.1 13 O. 133 O. 140 O. 145 O. 154 0.203 0.216 0.226 0.237 0.258 0.280 0.322 0.365 0.375 (b:

0.375 (b: 0.375 (b: 0.375 (b:

0.375 (6 0.375 (b) 0.375 (b)

0.375 (bl

NOTES:

(a) ASME B36.19M

@) These do not conform to ASME B36.10M for carbon steel schedules IO and 40. The carbon steel schedules are heavier than the stainless. Fittings ordered to SP43 will be furnished to the ‘‘s” schedules only.

10


ANNEX B Referenced Standards and Applicable Dates

This Annex is an integral part of this standard practice and is placed after the main text for convenience.

Standard Name or Description

ASME. ANSUASME, ANSI, ASME/ANSI

ASME B 16.9 - 1993 Factory-Made Wrought Steel Buttwelding Fittings ASME B36.10M - 1996 Welded and Seamless Wrought Steel Pipe ASME B36.19M - 1994 Stainless Steel Pipe

SP-25- 1998 - Standard Marking System for Valves, Fittings, Flanges and Unions

Publications of the following organizations appear in the above list:

AIS1

ANSI

American Iron and Steel Institute 1101 17th Street,N.W., Washington, D.C. 20036-4700

American National Standards Institute 1 1 West 42nd Street, New York, NY 10036-8002

ASME American Society of Mechanical Engineers Three Park Avenue, New York, NY 10016-5990

ASTM American Society for Testing and Materials 1 O0 Barr Harbor Drive, West Conshohocken, PA 19428-2959

MSS Manufacturers Standardization Society of the Valve and Fittings Industry, Inc. 127 Park Street, N.E., Vienna, VA 22 180-4602

11


Number SP-6-2001 SP-9-2001 SP-25-1998 SP-42-I999 SP43-1991 spa-1996 SP-45-1998 SP-51-2000 SP-53-1999

SP-54-1999 SP-55-1996

SP-58-1993 SP-60-1999 SP-61-1999 SP-65-1999 SP-67-1995 SP-68-1997 SP-69-1996 SP-70-1998 SP-71-1997 SP-72-1999 SP-73-1991 SP-75-1998 SP-77- 1995 SP-78-1998 SP-79-1999a SP-80-1997 SP-81-2000 SP-82-1992 SP-83-1995 SP-85-1994 SP-86-1997 SP-87-1991 SP-88-1993 SP-89-1998 SP-90-2000

SP-92-1999 SP-93-1999

SP-94-1999

SP-95-2000 SP-96-1996 SP-97-1995 SP-98-1996 SP-99-1994 SP-100-1997 SP-101-1989 SP-102-1969 SP-103-1995 SP-104-1995 SP-105-1996 SP-108-1990 SP-107-1991 SP-108-1996 SP-169-1997 SP-I 10-1 996 SP-111-1996 SP-112-1999

SP-91-1992

SP-113-2001 SP-114-1995 SP-115-1999 SP-116-1996 SP-117-1996 SP-118-1996 SP-119-1996 SP-I 20-1 997 SP-121-1997 SP-122-1997 SP-123-1998 SP-124-2001 SP-125-2000

STD-MSS SP-113-ENGL 3991 5770bYO 0503455 &LI= E List of MSS Standard Praclices

(Price List Available Upon Request)

Standard Finishes for Contact Faces of Pipe Flanges and Connecting-End Flanges of Valves and Fittings Spot Facing for Bronze, Iron and Steel Flanges Standard Marking System For Valves, Fittings, Flanges and Unions Class 150 Corrosion Resistant Gate, Globe, Angle and Check Valves with Flanged and Butt Weld Ends (R 01) Wrought Stainless Steel Butt-welding Fittings Steel Pipeline Flanges Bypass and Drain Conneclions Class I50LW Corrosion Resistant Cast Flanges and Flanged Fittings Quality Standard for Steel Castings and Forgings for Valves. Flanges and Fittings and Other Piping Componets - Magnetic Particle Examination Method Quality Standard for Steel Castings for Valves, Flanges, and Fittings and Other Piping Components - Radiographic Examination Method Quality Standard for Steel Castings for Valves, Flanges and Fittings and Other Piping Components - Visual Method for EValUatiOn Of Surface Irregularities Pipe Hangers and Supports - Materials, Design and Manufacture Connecting Flange Joint Between Tapping Sleeves and Tapping Valves Pressure Testing of Steel Valves High Pressure Chemical Industry Flanges and Threaded Stubs for Use with Lens Gaskets Butkrfly Valves High Pressure Butterfly Valves with Offset Design Pipe Hangers and Supports - Selection and Application Cast Iron Gate Valves, Flanged and Threaded Ends Gray Iron Swing Check Valves, Flanged and Threaded Ends Ball Valves with Flanged or Butt Welding Ends for General Service (R 96) Brazing Joints for Wrought and Cast Copper Alloy Solder Joint Pressure Fittings Specification for High Test Wrought Butt Welding Fittings (R 00) Guidelines for Pipe Support Contractual Relationships Cast Iron Plug Valves, Flanged and Threaded Ends Swket-Welding Reducer Inserts Bronze Gate, Globe, Angle and Check Valves Stainless Steel, Bonnetless, Flanged, Knife Gate Valves Valve Pressure Testing Methods Class 3000 Steel Pipe Unions, Socket-Welding and Threaded Cast Iron Globe &Angle Valves, Flanged and Threaded Ends Guidelines for Metric Data in Standards for Valves, Flanges, Fittings and Actuators (R 96) Factory-Made Butt-welding Fittings for Class 1 Nuclear Piping Applications Diaphragm Type Valves Pipe Hangars and Supports - Fabrication and Installation Practices Guidelines on Terminology for Pipe Hangers and Supporls (R 96) Guidelines for Manual Operations of Valves MSS Valve User Guide Quality Standard for Steel Castings and Forgings for Valves, Flanges, and Fittings and Other Piping Components-Liquid Penetrant Examination Method Quality Std for Femtic and Martensitlc Steel Castings for Valves, Flanges, and Fittings and Other Piping Components-Ultrasonic Examination Method Swage(d) Nipples and Bull Plugs Guidelines on Terminology for Valves and Fittings integrally Reinforced Forged Branch Outlet Fittings-Socket Welding, Threaded and Buttwelding Ends Protective Coatings for the Interior of Valves, Hydrants, and Fittings Instrument Valves Qualification Requirements for Elastomer Diaphragms for Nuclear Diaphragm Type Valves Part-Turn Valve Actuator Attachment-Flange and Driving Component Dimensions and Performance Characteristics Multi-Turn Valve Actuator Attachment - Flange and Driving Component Dimensions and Performance Characteristics (R 00) Wrought Copper and Copper Alloy Insert Fittings for Polybutylene Systems Wrought Copper Solder Joint Pressure Fittings Instrument Valves for Code Applications (R 96) Cast Copper Alloy Flanges and Flanged Fittings, Class 125, 150 and 300 (R 00) Transition Union Fittings for Joining Metal and Plastic Products Resillent-Seated Cast Iron-Eccentric Plug Valves Welded Fabricated Copper Solder Joint Pressure Fittings Ball Valves Threaded, Socket-Welding, Solder Joint, Grooved and Flared Ends Gray-Iron and Ductile-Iron Tapping Sleeves Quality Standard for Evaluation of Cast Surface Finishes - Visual and Tactile Method. This SP must be sold with a 10-surface. three dimensional Cast Surface Comparator, which is a necessary part of the Standard. Additional Comparators may be sold separately at $25.00 each. Same quantity discounts apply on total order. Connecting Joint behiveen Tapping Machines and Tapping Valves Corrosion Resistant Pipe Fittings Threaded and Socket Welding, Class 150 and 1000 Excess Flow Valves for Natural Gas Service Service Line Valves and Fittings for Drinking Water Systems Bellows Seals for Globe and Gate Valves Compact Steel Globe 8, Check Valves - Flanged, Flangeless, Threaded 8, Welding Ends (Chemical & Petroleum Refinery Service) Belled End Socket Welding Fittings, Stainless Steel and Copper Nickel Flexible Graphite Packing System for Rising Stem Steel Valves (Design Requirements) Qualification Testing Methods for Stem Packing for Rising Stem Steel Valves Plastic Industrial Ball Valves Non-Ferrous Threaded and SolderJoint Unions for Use With Copper Water Tube Fabricated Tapping Sleeves Grav Iron and Ductile Iron In-Line, Spring-Loaded. Center-Guided Check Valves

SP-126-2000 (R YEAR) Indicates year standard reaffirmed without substantive changes

A large number of former MSS Practices have been approved by the ANSI or ANSI Standards, published by others. In order to maintain a single source of authoritative information, the MSS withdraws its Standard Practice in such cases.

St&i In-Line Spring-Assisted Center Gu& Check Valves

Manufacturers Standardization Society of the Valve and Fittings Industry, Inc. 127 Parkstreet, N.E., Vienna, VA22180-4620 m(703) 281-6613 Fax#(703) 281-6671


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