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MSS SP-87-1991Reaffirmed 1996Reinstated 2011
Factory-Made Butt-WeldingFittings for
Class I Nuclear PipingApplications
Standard PracticeDeveloped and Approved by theManufacturers Standardization Society of theValve and Fittings Industry, Inc.127 Park Street, NEVienna, Virginia 22180-4602Phone: (703) 281-6613Fax: (703) 281-6671E-mail: [email protected]
www.mss-hq.org
yright MSSded by IHS under license with MSS
Not for Resaleeproduction or networking permitted without license from I HS
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i
MSS STANDARD PRACTICE SP-87
This MSS Standard Practice was developed under the consensus of the MSS Technical Committee 113, 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 Standard 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.
"Other standards documents referred to herein are identified by the date of issue that wasapplicable to this Standard Practice at the date of issue of this Standard Practice. See Annex A.
This Standard Practice shall remain silent on the applicability of those other standards of prior or
subsequent dates of issue even though applicable provisions may not have changed. References
contained herein which are bibliographic in nature are noted as supplemental in the text.
By publication of this Standard Practice, no position is taken with respect to the validity of any potential
claim(s) or of any patent rights in connection therewith. MSS shall not be held responsible for identifying any
patent rights. Users are expressly advised that determination of patent rights and the risk of infringement of
such rights are entirely their responsibility.
In this Standard Practice all notes, annexes, tables, and figures are construed to be essential to the
understanding of the message of the standard, and are considered part of the text unless noted as
"supplemental". All appendices appearing in this document are construed as "supplemental". "Supplemental"
information does not include mandatory requirements.
Non-toleranced dimensions in the Standard Practice are nominal, and, unless otherwise specified, shall be
considered "for reference only."
Any part of this Standard Practice may be quoted. Credit lines should read `Extracted from MSS SP-87-1991
(R 1996 Reinstated 2011) with permission of the publisher, the Manufacturers Standardization Society of the
Valves and Fittings Industry, Inc.'. Reproduction is prohibited under copyright convention unless written
permission is granted by the Manufacturers Standardization Society of the Valve and Fittings Industry Inc.
Originally Approved/Published: September 1977Originally Withdrawn: December 2001
Reinstated: March 2011
Copyright , 1982 by
Manufacturers Standardization Society
of the
Valve and Fittings Industry, Inc.
Printed in U.S.A.
NOTICE:MSS SP-87-1991 (R 1996) was reinstated in 2011 for the purpose of making an active version available to
those utilizing the Standard Practice and/or complying with nuclear-related codes and piping applications.
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CONTENTS
SECTION PAGE
0. INTRODUCTION ................................................................................................................................................ 11. SCOPE ......................................................................................................................................................................... 12. REFERENCES ........................................................................................................................................................... 1
3. WELDING ......................................................................................................................................................................... 1
4. PRESSURE RATINGS ............................................................................................................................................... 1
5. SIZE ...................................................................................................................................................................... 36. MARKING ............................................................................................................................................................ 3
7. MATERIAL ........................................................................................................................................................... 3
8. FITTING DIMENSIONS ...................................................................................................................................... 3
9. SHAPE REQUIREMENTS .................................................................................................................................. 310. METHOD OF MANUFACTURE ......................................................................................................................... 4
TABLE 1. TOLERANCES ........................................................................................................................................ 5
2. DIMENSIONS OF LONG RADIUS ELBOWS ......................................................................................... 63. DIMENSIONS OF SHORT RADIUS ELBOWS ................................................................................... 74. DIMENSIONS OF LONG RADIUS RETURNS ................................................................................... 7
5. DIMENSIONS OF SHORT RADIUS RETURNS ................................................................................. 8
6. DIMENSIONS OF STRAIGHT TEES ................................................................................................... 8
7. DIMENSIONS OF REDUCING OUTLET TEES .................................................................................. 98. DIMENSIONS OF CAPS ....................................................................................................................... 11
9. DIMENSIONS OF REDUCERS ............................................................................................................. 12
ANNEX A. LIST OF REFERENCED STANDARDS .............................................................................................. 14
ii
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FACTORY-MADE BUTT-WELDING FITTINGS FORCLASS I NUCLEAR PIPING APPLICATIONS
0. INTRODUCTION
Pipe Fittings for Nuclear Class I applications
require dimensional and testing controls beyond
those presently contained in existing ANSI
Standards to provide more stringent design
adequacy requirements in keeping with the high
reliability needed for Class I nuclear power plant
piping systems.
1. SCOPE
The objective of this Standard is to provide
production type fittings which are suitable forapplication of the stress indices and flexibility
factors given in NB-3600 of the ASME Boiler
and Pressure Vessel Code, Section III, Division 1,
Nuclear Power Plant components. It is recog-
nized that certain conditions will require fittings
over and beyond the scope of this standard and
in order not to complicate this production fitting
standard, such fitting must be negotiated be-
tween purchaser and manufacturer.
This standard covers overall dimensions,
tolerances and marking for wrought carbon and
alloy-steel (ferritic and austenitic) factory-made
welding fittings including long and short radius,
90 degree elbows (not reducing), 45 degree long
radius elbows, 180 degree long and short radius
returns, straight and reducing tees, concentric
reducers and caps. Both seamless, and welded
fittings manufactured to the requirements of
Section III Nuclear Power Plant Components
are included.
In case of conflict between this standard and
ANSI ASME B16.9 or ANSI/ASME B16.28,
the requirements of this standard are applicable.
2. REFERENCESStandards and specifications adopted by refer-
ence in this standard are shown in Annex A, for
convenience of identifying edition number, date
and source of supply.
3. WELDING
Only longitudinal and circumferential welds are
permitted within a fitting. The characteristics
shall be identified by the manufacturer as indi-
cated in Table NB3682.a-1 of the ASME Boiler
and Pressure Vessel Code, Section III, Division I,
and properly certified and stamped.
Unless otherwise specified by the purchaser,
non-flush or flush welds may be provided at the
manufacturer's option. This information shall be
furnished upon request.
4. PRESSURE RATINGS
Fittings shall be designed for the pressure
ratings calculated for straight pipe having a
joint efficiency of 1, of the same or equivalent
material, with which they are recommended for
use. The design adequacy of elbows, returns,
concentric reducers, and caps are acceptable
without proof test when calculated as described
in Subsection 4.1, or at the manufacturer's
option, by proof testing in accordance with
Subsection 4.2. The design of tees shall be estab-
lished by proof test in accordance with Sub-
section 4.2.
4.1 Calculated Design Adequacy
4.1.1 The design of long radius elbows and
returns is considered acceptable provided the
wall thickness in the inner arc is not less than thenominal thickness of the pipe, except at the ends
where the wall thickness is not less than 87
percent of nominal. The design of short radius
elbows and returns is considered acceptableprovided the wall thickness in the inner arc is not
less than 1.2 times the nominal thickness of the
pipe, except at the ends where the wall thickness
is not less than 87 percent of nominal.
4.1.2 The design of concentric reducers, and
caps is considered acceptable if the design meets
1
MSS STANDARD PRACTICE SP-87
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the requirements of the ASME Boiler and
Pressure Vessel Code, Section VIII, Division 1.
4.1.3 Calculations used to establish the design
adequacy of fittings shall be made available tothe purchaser upon request.
4.2 Design Proof Tests
4.2.1 Records of successful proof test shall
contain at least the items shown in the following
list. Records of such tests shall be made available
at the facility for inspection by the purchaser.
Items to be included in Records of Design Proof
Tests. (Additional information may be included
at Manufacturer's option.)
a) Fitting Type, nominal dimensions and
material. (For example, 10 x 10 tee, Sched-
ule 40, SA 234 WPB).b) Anticipated minimum thickness of the
lightest production fitting.
c) Actual minimum thickness of test fitting.
d) Length, nominal wall thickness andmaterial of each pipe attached to the test
fitting for the test.
e) Actual tensile strength of material used in
the test fitting.
f) Computed proof test pressure.g) Pressure gage identification and date of
most recent calibration.
h) Maximum pressure applied in test.
i) Rupture location, if rupture occurred.
j) Date of test.
k) Signature of manufacturer's employee who
witnessed the test.
4.2.2 Fittings that are representative of pro-
duction shall be selected for test. The fitting shall
not be thicker than 1.1 times the anticipated
thickness of the lightest production fitting.
4.2.3 Fittings, representative of production,
selected for test shall be identified as to material,
grade, and lot, including heat treatment. Straight
seamless or welded pipe sections, whose calcu-
lated bursting strength is at least as great as that
calculated for the fitting, and not thicker than 1
times the nominal pipe wall, shall be welded to
each end of the fitting to be tested. Any internalmisalignment greater than 0.09 inch shall be
reduced by taper boring at a slope not over 1:3.
Length of straight pipe sections for closures shallbe at least twice the pipe O.D. Test fluid shall be
water or other liquid used for hydrostatic testing.
4.2.4 Hydrostatic pressure shall be appliedand increased until either rupture occurs or the
pressure is 1.05 times the computed proof test
pressure. The computed test pressure is defined
by the equation:
Pc = computed proof test pressure, psi
Sa = the actual tensile strength (in psi) of
the material of the test fitting (de-
termined on specimens representa-
tive of the test fitting).
t = nominal thickness of the matching
pipe. Matching pipe is that pipe for
which the fitting is recommended
for use, inches.
D = specified outside diameter of pipe,
inches.
For reducing fitting, t and D shall be taken for
that matching pipe which gives the smaller value
of t/ D.
4.2.5 Design adequacy is considered to be
demonstrated if either rupture occurs at a
pressure equal to or higher than Pcor if 1.05 Pc is held without rupture.
4.2.6 It is not necessary to conduct an indi-vidual test on fittings with all combinations of
sizes, wall thickness, arc lengths and grades of
steel. A successful proof test on one prototype
fitting may represent others to the extent de-
scribed herein, except a long radius elbow is not
an acceptable prototype for a short radius elbow.
2
D
tS2Pc a
MSS STANDARD PRACTICE SP-87
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4.2.7 One test fitting may be used to qualify a
fitting of a similar design pattern no smaller thanone-half nor larger than two times the size of
the test fitting.
4.2.8 The test on a non-reducing tee qualifiesfor reducing tees of the same design pattern
manufactured from the same material thickness
as the non-reducing tee.
4.2.9 The test on a reducer of a given reduc-
tion qualifies for reducers of further reduction,
manufactured from the same material thickness
as the tested reducer.
4.2.10 The untested fitting must have a t/D
ratio not less than one-half nor more than two
times the t/D ratio of the test fitting.
4.2.11 Proof tests which have been conducted
prior to the issuance of this standard and which
are equivalent to the above requirements shall be
considered as fulfilling the requirements of thisstandard.
5. SIZEThe "size" of the fittings in the tables is identified
by the corresponding "nominal pipe size." For
fittings 14 in. and larger, the O.D. of the pipecorresponds with the nominal pipe.
6. MARKING
Each fitting shall be permanently(1)
marked in
accordance with MSS SP-25, and in addition
show the following:
a) Material
(By means of identification symbols estab-
lished for the respective grade in the appro-
priate ASME specifications.)
b) Standard - - SP-87
(1)Supplementary Note: Where steel stamps are used they should be low
stress type and care should be taken so that the marking is not deep enough
to cause cracks or to reduce wall thickness of the fitting below the
minimum allowed.
7. MATERIAL
Wrought fittings covered by this standard shallbe in accordance with ASME. Specifications
SA234, SA403 and SA420 in conjunction with
supplementary specification SA652.
8. FITTINGS DIMENSIONS
One of the principles of this standard is toestablish overall dimensions. Dimensional
standards for these fittings will be found in
Tables 2 through 9. Overall dimensions for these
fittings are the same as ANSI/ASME B16.9 andB16.28. Detailed dimensions for the bodies of
fittings may vary from manufacturer to manu-
facturer within the limitations of this standard.
When required such dimensions shall be avail-
able by agreement between the manufacturerand purchaser.
9. SHAPE REQUIREMENTS
9.1 90, 45Elbows and 180Returns
9.1.1 These shall be manufactured to approxi-
mate a continuous radius that provides the A
dimension in Tables 2, 3, 4 and 5.
9.1.2 Out-of-roundness is defined as the dif-ference between maximum and minimum out-
side diameters measured on any radial cross
section. The maximum out-of-roundness
throughout the body shall not exceed the tol-
erance given in Table 1.
9.1.3 The actual thickness of the elbows may
not exceed 1.25 times the nominal wall, except as
follows:
a) For short radius elbows, since the nominal
wall must be increased by 20% to com-
pensate for shape, the actual thickness ofthis elbow may not exceed 1.5 times the
nominal wall.
b) For elbows with a counterbore or other
close tolerance internal machining, the
thickness must be in crea sed to prov ide
3
MSS STANDARD PRACTICE SP-87
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material for these additional machining
operations. For these elbows, thicknessesup to the next higher schedule than the
nominal wall may be used. Where there is
no next higher schedule the wall may not bethicker than 1.33 times the nominal wall.For short radius elbows, the next higher
schedule above the adjusted nominal wall
may be used, or where there is no next
higher schedule the wall may not be thicker
than 1.33 times the adjusted nominal-wall.
9.2 Tees
9.2.1 The outlet dimension M shown in
Tables 6 and 7 shall not be less than indicated.
The M dimension may be increased upon mutual
agreement between purchaser and manufacturer.
9.2.2 The exterior of the transition surface
between the run and outlet portions (external
crotch radius) shall be smooth contoured and
not less than 0.1 times the nominal outside
diameter of the outlet pipe.
9.2.3 The minimum body wall thickness shall
not be less than 0.875 times the nominal wall
thickness of the matching run pipe, except that
the area immediately adjacent to the outlet end
(within a 2t length) cannot be less than 0.875times the nominal wall thickness of the matching
outlet pipe.
9.2.4 The actual thickness throughout the
body except in the crotch may not exceed 2
times the nominal wall thickness of the matching
run pipe.
9.3 Concentric Reducers
9.3.1 The minmum body wall thickness shall
not be less than 0.875 times the nominal wall
thickness of the matching pipe of the large end,except that in and immediately adjacent to the
small end cylindrical section, the minimum wall
thickness shall not be less than 0.875 times the
nominal wall thickness of the small end matching
pipe.
9.3.2 The actual thickness at the ends may not
exceed 1.25 times the nominal wall.
9.3.3 The actual thickness throughout the
body may not exceed 2 times the nominal wall .
9.4 Caps
9.4.1 The head portion of the inside of caps
shall be ellipsoidal with a major-to-minor axis
ratio of not greater than 2.0.
9.4.2 The inner surfaces of the elliptical por-
tion of caps shall not deviate from the specified
shape by more than 2.5 percent of the inside
diameter or 0.25 inch, whichever is larger. Such
deviations shall not be abrupt changes, shall be
outside the theoretical shape, and shall be
measured perpendicular to the specified shape.
10. METHOD OF MANUFACTUREFor all items covered by this standard, the
manufacturer shall furnish the methods of
manufacture that are requested by the user.
4
MSS STANDARD PRACTICE SP-87
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5
MSS STANDARD PRACTICE SP-87
TABLE
1.TOLERANCES
Dimensio
nsinInches
Angula
rityTol.
Off
PlaneP0.06
0.12
0.19
0.25
0.38
0.38
0.50
0.75
Off
AngleQ0.03
0.06
0.09
0.09
0.12
0.19
0.19
0.19
Nominal
Pipe
Size
1/2to4
5to8
10to12
14to16
18to24
26to30
32to42
44to48
Dimensio
nsinInches
180-Deg.Returns
Align-
mentof
Fnds
U0.03
0.03
0.03
0.03
0.06
0.06
0.06
Back-to
Face
Dimen-
sionK
0.25
0.25
0.25
0.25
0.25
0.25
0.25
Center-
to-Center
Dimen-
sionO
0.25
0.25
0.25
0.25
0.38
0.38
0.38
Elbows
and
Returns
Out(b)
of
Roundness
0.09
0.12
0.12
0.15
0.28
2.5%of
nominal
outside
diameter
Notes:
(a) Unlessotherwisespecified,weldbevelwillbe37.5with0.06inlandandnocounterbore.
(b) seeSubsection9.1.2.
90-Deg.
and
45-Deg.
Elbows
andTees
Center-to-
End
Dimen-
sion
A
,B,C,M
0.06
0.06
0.06
0.06
0.09
0.09
0.09
0.12
0.19
Caps
Over-
all
Length
E0.12
2
0.12
025
0.25
0.25
0.25
0.38
0.38
Reducers
Over-
all
Length
H0.06
0.06
0.06
0.06
0.09
0.09
0.09
0.19
0.19
AllFittings(a)
Wall
Thick-
ness
Not
less
than
87.5%
nominal
thick-=
ness
Ins
ide
Diam
eter
atE
nd
0
.03
0
.06
0
.06
0
.06
0
.12
0
.12
0
.19
0
.19
0
.19
Outside
Diameter
atBevel
+0.06
-0.03
.06
0.06
+0.09
-0.06
+0.16
-0.12
+0.16
-0.12
+0.25
-0.19
0.25
-0.19
+0.25
-0.19
Nominal
Pipe
Size
1/2to2-1/2
3to3-1/2
4 5to8
10to12
14to18
20to24
26to30
32to48
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TABLE 2. DIMENSIONS OF LONG RADIUS ELBOWS
Dimensions in Inches
NominalPipe
Size
OutsideDiameter
at Bevel
Center-to-End
90-Deg
Elbows
A
45-Deg
Elbows
B
1/2 0.84 1.50 0.62
3/4 1.05 1.12 0.44
1 1.32 1.50 0.88
1-1/4 1.66 1.88 1.00
1-1/2 1.90 2.25 1.12
2 2.38 3.00 1.38
2-1/2 2.88 3.75 1.75
3 3.50 4.50 2.00
3-1/2 4.00 5.25 2.25
4 4.50 6.00 2.50
5 5.56 7.50 3.12
6 6.62 9.00 3.75
8 8.62 12.00 5.00
10 10.75 15.00 6.25
12 12.75 18.00 7.5014 14.00 21.00 8.75
16 16.00 24.00 10.00
18 18.00 27.00 11.25
20 20.00 30.00 12.50
22 22.00 33.00 13.50
24 24.00 36.00 15.00
26 26.00 39.00 16.00
28 28.00 42.00 17.25
30 30.00 45.00 18.50
32 32.00 48.00 19.75
34 34.00 51.00 21.00
36 36.00 54.00 22.25
38 38.00 57.00 23.62
40 40.00 60.00 24.88
42 42.00 63.00 26.0044 44.00 66.00 27.38
46 46.00 69.00 28.62
48 48.00 72.00 29.88
Fittings must be manufactured to approximate a continuous radius that pro-
vides the A and B dimensions shown. A and B dimensions for size 3/4 may
be as shown below at the manufacturer's option.
CENTER-TO-END
90 Degree Elbows - A - 45 Degree Elbows - B -
1.50 0.75
MSS STANDARD PRACTICE SP-87
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TABLE 3. DIMENSIONS OF
SHORT RADIUS ELBOWS
Dimensions in Inches
Nominal
PipeSize
Outside
Diameterat Bevel
Center
toEnd
D A
1 1.32 1.00
1-1/4 1.66 1.25
1-1/2 1.90 1.50
2 2.38 2.00
2-1/2 2.88 2.50
3 3.50 3.00
3-1/2 4.00 3.50
4 4.50 4.00
5 5.56 5.00
6 6.62 6.00
8 8.62 8.00
10 10.75 10.00
12 12.75 12.00
14 14.00 14.00
16 16.00 16.00
18 18.00 18.00
20 20.00 20.00
22 22.00 22.00
24 24.00 24.00
TABLE 4. DIMENSIONS OF LONG
RADIUS RETURNS
Dimensions in Inches
Nominal
Pipe
Size
Outside
Diameter
at Bevel
Center-
to-Center
-O-(a)
Back-to
Face
-K-(a)
1/2 0.84 3.00 1.88
3/4 1.05 2.25 1.69
1 1.32 3.00 2.19
1-1/4 1.66 3.75 2.75
1-1/2 1.90 4.50 3.25
2 2.38 6.00 4.19
2-1/2 2.88 7.50 5.19
3 3.50 9.00 6.25
3-1/2 4.00 10.50 7.25
4 4.50 12.00 8.25
5 5.56 15.00 10.31
6 6.62 18.00 12.31
8 8.62 24.00 16.31
10 10.75 30.00 20.3812 12.75 36.00 24.38
14 14.00 42.00 28.00
16 16.00 48.00 32.00
18 18.00 54.00 36.00
20 20.00 60.00 40.00
22 22.00 66.00 44.00
24 24.00 72.00 48.00
Fittings must be manufactured to an approximate
continuous radius that provides the "O" dimensions
shown.
Dimension "A" is equal to 1/2 of dimension "O"
Tolerance for alignment "U", see Table 1.
Note:
(a)O and K DIMENSIONS for size 3/4 may be as shown
below at the manufacturer's opt ion.
Center-to-Center -O- Back-to-Face -K-
3.00 2.00
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TABLE 5. DIMENSIONS OF SHORT
RADIUS RETURNSDimensions in Inches
Nominal
Pipe
Size
OutsideDiameter
at Bevel
D
Centerto
Center
O (a)
Backto
Face
K
1 1.32 2.00 1.63
1-1/4 1.66 2.50 2.06
1-1/2 1.90 3.00 2.44
2 2.38 4.00 3.19
2-1/2 2.88 5.00 3.943 3.50 6.00 4.75
3-1/2 4.00 7.00 5.50
4 4.50 8.00 6.25
5 5.56 10.00 7.75
6 6.62 12.00 9.31
8 8.62 16.00 12.31
10 10.75 20.00 15.38
12 12.75 24.00 18.38
14 14.00 28.00 21.00
16 16.00 32.00 24.00
18 18.00 36.00 27.00
20 20.00 40.00 30.00
22 22.00 44.00 33.00
24 24.00 48.00 36.00
Note:
(a)Dimension A is equal to 1/2 of dimension O.
TABLE 6. DIMENSIONS OF STRAIGHT
TEES(a)
Dimensions in Inches
Nominal
Pipe
Size
Outside
Diameterat Bevel
Center-to-End
Run
C
Outlet
M
1/2 0.84 1.00 1.00
3/4 1.05 1.12 1.12
1 1.32 1.50 1.50
1-1/4 1.66 1.88 1.88
1-1/2 1.90 2.25 2.25
2 2.38 2.50 2.50
2-1/2 2.88 3.00 3.00
3 3.50 3.38 3.38
3-1/2 4.00 3.75 3.75
4 4.50 4.12 4.12
5 5.56 4.88 4.88
6 6.62 5.62 5.62
8 8.62 7.00 7.00
10 10.75 8.50 8.50
12 12.75 10.00 10.00
14 14.00 11.00 11.0016 16.00 12.00 12.00
18 18.00 13.50 13.50
20 20.00 15.00 15.00
22 22.00 16.50 16.50
24 24.00 17.00 17.00
26 26.00 19.50 19.50
28 28.00 20.50 20.50
30 30.00 22.00 22.00
32 32.00 23.50 23.50
34 34.00 25.00 25.00
36 36.00 26.50 26.50
38 38.00 28.00 28.00
40 40.00 29.50 29.50
42 42.00 30.00 28.0044 44.00 32.00 30.00
46 46.00 33.50 31.50
48 48.00 35.00 33.00
(a)Outlet dimension M for NPS 26 and larger is
recommended but not required.
MSS STANDARD PRACTICE SP-87
yright MSSded by IHS under license with MSS
Not for Resaleeproduction or networking permitted without license from I HS
--`,,
```,,,,
````-`-`,,
`,,
`,
`,,
`---
/ / ^ ^ ^ ~ ^ ~ ~ * ~ ^ ^ ~ ~~ ^ * ~ ^~ \ \
-
8/10/2019 ansi b16_9
12/18
Dimensions in Inches
NominalPipe
Size
Outside
Diameter
at Bevel
Center-to-End
Run
C
Outlet
MRun Outlet
1/2xl/2x3/8 0.84 0.68 1.00 1.00
1/2xl/2xl/4 0.84 0.54 1.00 1.00
3/4x3/4x1/2 1.05 0.84 1.12 1.12
3/4x3/4x3/8 1.05 0.68 1.12 1.12
1x1x3/4 1.32 1.05 1.50 1.50
1x1xl/2 1.32 0.84 1.50 1.50
1-1/4xl-1/4x1 1.66 1.32 1.88 1.88
1-1/4xl-1/4x3/4 1.66 1.05 1.88 1.88
1-1/4xl-1/4xl/2 1.66 0.84 1.88 1.88
1-1/2xl-1/2xl-1/4 1.90 1.66 2.25 2.25
1-1/2xl-1/2xl 1.90 1.32 2.25 2.25
1-1/2xl-1/2x3/4 1.90 1.05 2.25 2.25
2x2xl-1/2 2.38 1.90 2.50 2.38
2x2xl-1/4 2.38 1.66 2.50 2.25
2x2xl 2.38 1.32 2.50 2.00
2x2x3/4 2.38 1.05 2.50 1.75
2-1/2x2-1/2x2 2.88 2.38 3.00 2.75
2-1/2x2-1/2xl-1/2 2.88 1.90 3.00 2.62
2-1/2x2-1/2x1-1/4 2.88 1.66 3.00 2.502-1/2x2-1/2x1 2.88 1.32 3.00 2.25
3x3x2-1/2 3.50 2.88 3.38 3.25
3x3x2 3.50 2.38 3.38 3.00
3x3xl-1/2 3.50 1.90 3.38 2.88
3x3xl-1/4 3.50 1.66 3.38 2.75
3-1/2x3-1/2x3 4.00 3.50 3.75 3.62
3-1/2x3-1/2x2-1/2 4.00 2.88 3.75 3.50
3-1/2x3-1/2x2 4.00 2.38 3.75 3.25
3-1/2x3-1/2xl-1/2 4.00 1.90 3.75 3.12
4x4x3-1/2 4.50 4.00 4.12 4.00
4x4x3 4.50 3.50 4.12 3.88
4x4x2-1/2 4.50 2.88 4.12 3.75
4x4x2 4.50 2.38 4.12 3.50
4x4xl-1/2 4.50 1.90 4.12 3.385x5x4 5.56 4.50 4.88 4.62
5x5x3-1/2 5.56 4.00 4.88 4.50
5x5x3 5.56 3.50 4.88 4.38
5x5x2-1/2 5.56 2.88 4.88 4.25
5x5x2 5.56 2.38 4.88 4.12
6x6x5 6.62 5.56 5.62 5.38
6x6x4 6.62 4.50 5.62 5.12
6x6x3-1/2 6.62 4.00 5.62 5.00
6x6x3 6.62 3.50 5.62 4.88
6x6x2-1/2 6.62 2.88 5.62 4.75
9
TABLE 7. DIMENSIONS OF REDUCING OUTLET TEES(1)
Dimensions in Inches
Nominal
Pipe
Size
Outside
Diameterat Bevel
Center-to-End
Run
C
Outlet
MRun Outlet
8x8x6 8.62 6.62 7.00 6.62
8x8x5 8.62 5.56 7.00 6.38
8x8x4 8.62 4.50 7.00 6.12
8x8x3-1/2 8.62 4.00 7.00 6.00
10x10x8 10.75 8.62 8.50 8.00
10x10x6 10.75 6.62 8.50 7.62
10x10x5 10.75 5.56 8.50 7.50
10x10x4 10.75 4.50 8.50 7.25
12x12x10 12.75 10.75 10.00 9.50
12x12x8 12.75 8.62 10.00 9.00
12x12x6 12.75 6.62 10.00 8.62
12x12x5 12.75 5.56 10.00 8.50
14x14x12 14.00 12.75 11.00 10.6214x14x10 14.00 10.75 11.00 10.12
14x14x8 14.00 8.62 11.00 9.75
14x14x6 14.00 6.62 11.00 9.38
16x16x14 16.00 14.00 12.00 12.00
16x16x12 16.00 12.75 12.00 11.62
16x16x10 16.00 10.75 12.00 11.12
16x16x8 16.00 8.62 12.00 10.75
16x16x6 16.00 6.62 12.00 10.38
18x18x16 18.00 16.00 13.50 13.00
18x18x14 18.00 14.00 13.50 13.00
18x18x12 18.00 12.75 13.50 12.62
18x18x10 18.00 10.75 13.50 12.12
18x18x8 18.00 8.62 13.50 11.75
20x20x18 20.00 18.00 15.00 14.50
20x20x16 20.00 16.00 15.00 14.00
20x20x14 20.00 14.00 15.00 14.00
20x20x12 20.00 12.75 15.00 13.62
20x20x10 20.00 10.75 15.00 13.12
20x20x8 20.00 8.62 15.00 12.75
22x22x20 22.00 20.00 16.50 16.00
22x22x18 22.00 18.00 16.50 15.50
22x22x16 22.00 16.00 16.50 15.00
22x22x14 22.00 14.00 16.50 15.00
22x22x12 22.00 12.75 16.50 14.62
22x22x10 22.00 10.75 16.50 14.12
24x24x22 24 00 22.00 17.00 17.00
24x24x20 24 00 20.00 17.00 17.00
24x24x18 24.00 18.00 17.00 16.50
24x24x16 24.00 16.00 17.00 16.0024x24x14 24.00 14.00 17.00 16.00
24x24x12 24.00 12.75 17.00 15.62
24x24x10 24.00 10.75 17.00 15.12
26x26x24 26.00 24.00 19.50 19.00
26x26x22 26.00 22.00 19.50 18.50
26x26x20 26.00 20.00 19.50 18.00
26x26x18 26.00 18.00 19.50 17.50
26x26x16 26.00 16.00 19.50 17.00
26x26x14 26.00 14.00 19.50 17.00
26x26x12 26.00 12.75 19.50 16.62
MSS STANDARD PRACTICE SP-87
yright MSSded by IHS under license with MSS
Not for Resaleeproduction or networking permitted without license from I HS
--`,,```,,,,````-`-`,,`,,`,`,,`---
-
8/10/2019 ansi b16_9
13/18
10
MSS STANDARD PRACTICE SP-87
TABLE 7. DIMENSIONS OF REDUCING OUTLET TEES (Continued)
Dimensions in Inches
NominalPipe
Size
Outside
Diameterat Bevel
Center-to-End
Run
C
Outlet
MRun Outlet
28x28x26 28.00 26.00 20.50 20.5028x28x24 28.00 24.00 20.50 20.00
28x28x22 28.00 22.00 20.50 19.50
28x28x20 28.00 20.00 20.50 19.00
28x28x18 28.00 18.00 20.50 18.50
28x28x16 28.00 16.00 20.50 18.00
28x28x14 28.00 14.00 20.50 18.00
28x28x12 28.00 12.75 20.50 17.62
30x30x28 30.00 28.00 22.00 21.50
30x30x26 30.00 26.00 22.00 21.50
30x30x24 30.00 24.00 22.00 21.00
30x30x22 30.00 22.00 22.00 20.50
30x30x20 30.00 20.00 22.00 20.00
30x30x18 30.00 18.00 22.00 19.50
30x30x16 30.00 16.00 22.00 19.00
30x30x14 30.00 14.00 22.00 19.00
30x30x12 30.00 12.75 22.00 18.62
30x30x10 30.00 10.75 22.00 18.12
32x32x30 32.00 30.00 23.50 23.00
32x32x28 32.00 28.00 23.50 22.50
32x32x26 32.00 26.00 23.50 22.50
32x32x24 32.00 24.00 23.50 22.00
32x32x22 32.00 22.00 23.50 21.50
32x32x20 32.00 20.00 23.50 21.00
32x32x18 32.00 18.00 23.50 20.50
32x32x16 32.00 16.00 23.50 20.00
32x32x14 32.00 14.00 23.50 20.00
34x34x32 34.00 32.00 25.00 24.50
34x34x30 34.00 30.00 25.00 24.00
34x34x28 34.00 28.00 25.00 23.50
34x34x26 34.00 26.00 25.00 23.50
34x34x24 34.00 24.00 25.00 23.00
34x34x22 34.00 22.00 25.00 22.50
34x34x20 34.00 20.00 25.00 22.0034x34x18 34.00 18.00 25.00 21 50
34x34x16 34.00 16.00 25.00 21.00
36x36x34 36.00 34.00 26.50 26.00
36x36x32 36.00 32.00 26.50 25.50
36x36x30 36.00 30.00 26.50 25.00
36x36x28 36.00 28.00 26.50 24.50
36x36x26 36.00 26.00 26.50 24.50
36x36x24 36.00 24.00 26.50 24.00
36x36x22 36.00 22.00 26.50 23.50
36x36x20 36.00 20.00 26.50 23.00
36x36x18 36.00 18.00 26.50 22.50
36x36x16 36.00 16.00 26.50 22.00
38x38x36 38.00 36.00 28.00 28.00
38x38x34 38.00 34.00 28.00 27 50
38x38x32 38.00 32 00 28.00 27.00
38x38x30 38.00 30.00 28.00 26.50
38x38x28 38.00 28.00 28.00 25 50
38x38x26 38.00 26 00 28.00 25.50
38x38x24 38.00 24.00 28.00 25.00
38x38x22 38.00 22 00 28.00 24.50
38x38x20 38.00 20 00 28.00 24.00
38x38x18 38.00 18.00 28.00 23 50
Dimensions in Inches
Nominal
PipeSize
OutsideDiameterat Bevel
Center-to-End
RunC
OutletM
Run Outlet
40x40x38 40.00 38.00 29.50 29.5040x40x36 40.00 36.00 29.50 29.00
40x40x34 40.00 34.00 29.50 28.50
40x40x32 40.00 32.00 29.50 28.00
40x40x30 40.00 30.00 29.50 27.50
40x40x28 40.00 28.00 29.50 26.50
40x40x26 40.00 26.00 29.50 26.50
40x40x24 40.00 24.00 29.50 26.00
40x40x22 40.00 22.00 29.50 25.50
40x40x20 40.00 20.00 29.50 25.00
40x40x18 40.00 18.00 29.50 24.50
42x42x40 42.00 40.00 30.00 28.00
42x42x38 42.00 38.00 30.00 28.00
42x42x36 42.00 36.00 30.00 28.00
42x42x34 42.00 34.00 30.00 28.00
42x42x32 42.00 32.00 30.00 28.00
42x42x30 42.00 30.00 30.00 28.00
42x42x28 42.00 28.00 30.00 27.50
42x42x26 42.00 26.00 30.00 27.50
42x42x24 42.00 24.00 30.00 26.00
42x42x22 42.00 22.00 30.00 26.00
42x42x20 42.00 20.00 30.00 26.00
42x42x18 42.00 18.00 30.00 25.50
42x42x16 42.00 16.00 30.00 25.00
44x44x42 44.00 42.00 32.00 30.00
44x44x40 44.00 40.00 32.00 29.50
44x44x38 44.00 38 00 32.00 29.00
44x44x36 44.00 36 00 32.00 28 50
44x44x34 44.00 34 00 32.00 28 50
44x44x32 44.00 32 00 32.00 28 00
44x44x30 44.00 30 00 32 00 28.00
44x44x28 44.00 28 00 32.00 27 50
44x44x26 44.00 26 00 32.00 27 50
44x44x24 44.00 24 00 32.00 27 5044x44x22 44.00 22 00 32 00 27 00
44x44x20 44.00 20 00 32 00 27 00
46x46x44 46.00 44 00 33 50 31.50
46x46x42 46.00 42 00 33.50 31 00
46x46x40 46 00 40 00 33 50 30.50
46x46x38 46 00 38 00 33 50 30.00
46x46x36 46.00 36.00 33 50 30 00
46x46x34 46 00 34.00 33 50 29.50
46x46x32 46 00 32.00 33.50 29.50
46x46x30 46 00 30.00 33 50 29.00
46x46x28 46.00 28 00 33.50 29 00
46x46x26 46.00 26.00 33.50 29 00
46x46x24 46.00 24.00 33 50 28.50
46x46x22 46.00 22.00 33 50 28.50
48x48x46 48.00 46.00 35 00 33.00
48x48x44 48.00 44.00 35 00 33.00
48x48x42 48.00 42.00 35 00 32 00
48x48x40 48 00 40.00 35 00 32.00
48x48x38 48 00 38 00 35.00 32.00
48x48x36 48.00 36.00 35.00 31.00
48x48x34 48 00 34.00 35 00 31 00
48x48x32 48.00 32.00 35 00 31.00
48x48x30 48.00 30.00 35 00 30.00
48x48x28 48 00 28.00 35 00 30.00
48x48x26 48.00 26.00 35.00 30.00
48x48x24 48.00 24.00 35 00 29.00
48x48x22 48.00 22.00 35 00 29.00
(a)Outlet dimension M for runsizes 14 and larger isrecommended but not required.
yright MSSded by IHS under license with MSS
Not for Resaleeproduction or networking permitted without license from I HS
--`,,```,,,,````-`-`,,`,,`,`,,`---
/ / ^ ^ ^ ~ ^ ~ ~ * ~ ^ ^ ~ ~~ ^ * ~ ^~ \ \
-
8/10/2019 ansi b16_9
14/18
MSS STANDARD PRACTICE SP-87
11
TABLE 8. DIMENSIONS OF CAPS
Dimensions in Inches
Nominal
Pipe
Size
Outside
Diameter
at Bevel
Length (a) Limiting Wall
Thickness for
Length E
Length (b)
E E1
1/2 0.84 1.00 0.147 1.00
3/4 1.05 1.00 0.154 1.00
1 1.32 1.50 0.179 1.50
1-1/4 1.66 1.50 0.191 1.501-1/2 1.90 1.50 0.200 1.50
2 2.38 1.50 0.218 1.75
2-1/2 2.88 1.50 0.276 2.00
3 3.50 2.00 0.300 2.50
3-1/2 4.00 2.50 0.318 3.00
4 4.50 2.50 0.337 3.00
5 5.56 3.00 0.375 3.50
6 6.62 3.50 0.432 4.00
8 8.62 4.00 0.500 5.00
10 10.75 5.00 0.500 6.00
12 12.75 6.00 0.500 7.00
14 14.00 6.50 0.500 7.50
16 16.00 7.00 0.500 8.00
18 18.00 8.00 0.500 9.00
20 20.00 9.00 0.500 10.00
22 22.00 10.00 0.500 10.00
24 24.00 10.50 0 500 12.00
26 26.00 10.50
28 28.00 10.50
30 30.00 10.50
32 32.00 10.50
34 34.00 10.50
36 36.00 10.50
38 38.00 12.00
40 40.00 12.00
42 42.00 12.00
44 44.00 13.50
46 46.00 13.50
48 48.00 13.50Notes:(a)
Length E applies for thickness not exceeding that given in column "Limiting Wall Thickness for Length E."(b)
Length E1applies for thickness greater than that given in column "Limiting Wall Thickness" for sizes 24 and
smaller. For sizes 26 and larger, Length E1shall be by agreement between manufacturer and purchaser.
yright MSSded by IHS under license with MSS
Not for Resaleeproduction or networking permitted without license from I HS
--`,,
```,,,,
````-`-`,,
`,,
`,
`,,
`---
-
8/10/2019 ansi b16_9
15/18
12
MSS STANDARD PRACTICE SP-87
TABLE 9. DIMENSIONS OF REDUCERS
Tangent Lengths L1 and L2; transition radii r1and r2; and cone angles may be obtainedupon request by purchaser to manufacturer.
Dimension in Inches
NominalPipe
Size
Outside Diameter End-
to
EndH
Large
End
Small
End
3/4x1/23/4x3/8
1.051.05
0.840.68
1.501.50
1x3/41x1/2
1.321.32
1.050.84
2.002.00
1-1/4x1
1-1/4x3/41-1/4xl/2
1.66
1.661.66
1.32
1.050.84
2.00
2.002.00
1-1/2xl-1/41-1/2x11-1/2x3/4
1-1/2x1/2
1.901.901.90
1.90
1.661.321.05
0.84
2.502.502.50
2.50
2xl-1/22xl-1/4
2x12x3/4
2.382.38
2.382.38
1.901.66
1.321.05
3.003.00
3.003.00
2-1/2x2
2-1/2x1-1/2
2-1/2x1-1/42-1/2x1
2.88
2.88
2.882.88
2.38
1.90
1.661.32
3.50
3.50
3.503.50
3x2-1/23x2
3x1-1/2
3x1-1/4
3.503.50
3.50
3.50
2.882.38
1.90
1.66
3.503.50
3.50
3.50
3-1/2x33-1/2x2-1/2
3-1/2x2
3-1/2xl-1/23-1/2xl-1/4
4.004.00
4.00
4.004.00
3.502.88
2.38
1.901.66
4.004.00
4.00
4.004.00
Dimensions in Inches
Nominal
Pipe
Size
Outside Diameter End-to
EndHLargeEnd SmallEnd
4x3-1/2
4x34x2-1/2
4x24x1-1/2
4.50
4.504.50
4.504.50
4.00
3.502.88
2.381.90
4.00
4.004.00
4.004.00
5x45x3-1/2
5x3
5x2-1/25x2
5.565.56
5.56
5.565.56
4.504.00
3.50
2.882.38
5.005.00
5.00
5.005.00
6x5
6x46x3-1/2
6x36x2-1/2
6.62
6.626.62
6.626.62
5.56
4.504.00
3.502.88
5.50
5.505.50
5.505.50
8x68x5
8x48x3-1/2
8.628.62
8.628.62
6.625.56
4.504.00
6.006.00
6.006.00
10x810x6
10x510x4
10.7510.75
10.7510.75
8.626.62
5.564.50
7.007.00
7.007.00
12x10
12x812x6
12x5
12.75
12.7512.75
12.75
10.75
8.626.62
5.56
8.00
8.008.00
8.00
yright MSSded by IHS under license with MSS
Not for Resaleeproduction or networking permitted without license from I HS
--`,,```,,,,````-`-`,,`,,`,`,,`---
-
8/10/2019 ansi b16_9
16/18
TABLE 9. DIMENSIONS OF REDUCERS (Continued)
Dimensions in Inches
NominalPipe
Size
Outside Diameter End-
to-End
H
Large
End
Small
End
14x12
14x10
14x8
14x6
14.00
14.00
14.00
14.00
12.75
10.75
8.62
6.62
13.00
13.00
13.00
13.00
16x1416x12
16x10
16x8
16.0016.00
16.00
16.00
14.00
12.75
10.75
8.62
14.00
14.00
14.00
14.00
18x16
18x1418x12
18x10
18.00
18.0018.0018.00
16.00
14.0012.7510.75
15.00
15.0015.0015.00
20x1820x16
20x14
20x12
20.0020.00
20.00
20.00
18.0016.00
14.00
12.75
20.0020.00
20.00
20.00
22x20
22x18
22x1622x14
22.00
22.00
22.0022.00
20.00
18.00
16.0014.00
20.00
20.0020.00
20.00
24x22
24x2024x18
24x16
24.00
24.0024.00
24.00
22.00
20.0018.00
16.00
20.00
20.0020.00
20.00
26x24
26x22
26x20
26x18
26.00
26.0026.00
26.00
24.00
22.0020.00
18.00
24.00
24.0024.00
24.00
28x26
28x24
28x20
28x18
28.00
28.0028.00
28.00
26.00
24.0020.00
18.00
24.00
24 0024.00
24.00
30x28
30x2630x24
30x20
30.00
30.0030.00
30.00
28.00
26.0024.00
20.00
24.00
24.0024.00
24.00
32x30
32x28
32.00
32.00
30.00
28.00
24.00
24.00
Dimensions in Inches
Nominal
Pipe
Size
Outside Diameter End-
to-
End
H
Large
End
Small
End
32x26
32x24
32.00
32.00
26.00
24.00
24.00
24.00
34x32
34x3034x26
34x24
34.00
34.0034.00
34.00
32.00
30.00
26.00
24.00
24.00
24.00
24.00
24.00
36x3436x32
36x30
36x26
36x24
36.0036.00
36.00
36.00
36.00
34.0032.00
30.00
26.00
24.00
24.0024.00
24.00
24.00
24.00
38x3638x34
38x32
38x30
38x2838x26
38.0038.00
38.00
38.00
38.0038.00
36.0034.00
32.00
30.00
28.0026.00
24.0024.00
24.00
24.00
24.0024.00
40x38
40x36
40x3440x32
40x30
40.00
40.00
40.0040.00
40.00
38.00
36.00
34.0032.00
30.00
24.0024.00
24.0024.00
24.00
42x40
42x38
42x3642x3442x32
42x30
42.00
42.00
42.0042.0042.00
42.00
40.00
38.00
36.0034.0032.00
30.00
24.00
24.00
24.0024.0024.00
24.00
44x4244x40
44x38
44x36
44.00
44.00
44.00
44.00
42.00
40.00
38.00
36.00
24.00
24.00
24.00
24.00
46x4446x42
46x40
46x38
46.00
46.00
46.00
46.00
44.00
42.00
40.00
38.00
28.00
28.00
28.00
28.00
48x4648x44
48x42
48x40
48.00
48.00
48.00
48.00
46.00
44.00
42.00
40.00
28.00
28.00
28.00
28.00
13
MSS STANDARD PRACTICE SP-87
yright MSSded by IHS under license with MSS
Not for Resaleeproduction or networking permitted without license from I HS
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14
ANNEX A
LIST OF REFERENCED STANDARDS
List of standards and specifications referenced in this standard practice, showing the year of approved issue.
ANSI/ASME B16.9 1993 Factory-Made Wrought Steel Buttwelding Fittings
ANSI/ASME B16.281986 Wrought Steel Buttwelding Short Radius Elbows and Returns
ASME Boiler and Pressure Vessel Code 1995, Sections II, III and VIII
MSS SP-25-1993Standard Marking System for Valves, Fittings, Flanges and Unions
SA234Specification for Piping Fittings of Wrought Carbon Steel and Alloy for Moderate and ElevatedTemperatures
SA403Specification for Wrought Austenitic Stainless Steel Piping FittingsSA420Specification for Piping Fittings of Wrought Carbon Steel and Alloy Steel for Low Temperature Service
SA652Specification for Special Requirements for Wrought Steel Welding Fittings for Nuclear and OtherSpecial Applications
ANSI American National Standards Institute, 1430 Broadway, New York, NY 10018
ASMEAmerican Society of Mechanical Engineers, 345 East 47th Street, New York, NY 10017
MSS Manufacturers Standardization Society of the Valves and Fittings Industry, Inc., 127 Park Street, NE,Vienna, VA 22180-4602
MSS STANDARD PRACTICE SP-87
yright MSSded by IHS under license with MSS
Not for Resaleeproduction or networking permitted without license from I HS
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Listing of MSS Standard PracticesTITLESP-6-2007 Standard Finishes for Contact Faces of Pipe Flanges and Connecting-End Flanges of Valves and FittingsSP-9-2008 Spot Facing for Bronze, Iron and Steel FlangesSP-25-2008 Standard Marking System for Valves, Fittings, Flanges, and UnionsSP-42-2009 Corrosion Resistant Gate, Globe, Angle and Check Valves with Flanged and Butt Weld Ends (Classes 150, 300 & 600)SP-43-2008 Wrought and Fabricated Butt-Welding Fittings for Low Pressure, Corrosion Resistant Applications (Incl. 2010 Errata Sheet)SP-44-2010 Steel Pipeline FlangesSP-45-2003 (R 2008) Bypass and Drain ConnectionsSP-51-2007 Class 150LW Corrosion Resistant Flanges and Cast Flanged FittingsSP-53-1999 (R 2007) Quality Standard for Steel Castings and Forgings for Valves, Flanges, and Fittings and Other Piping Components Magnetic Particle
Examination MethodSP-54-1999 (R 2007) Quality Standard for Steel Castings and Forgings for Valves, Flanges, and Fittings and Other Piping Components Radiographic
Examination MethodSP-55-2006 Quality Standard for Steel Castings for Valves, Flanges, Fittings, and Other Piping Components Visual Method for Evaluation of Surface
IrregularitiesSP-58-2009 Pipe Hangers and Supports Materials, Design, Manufacture, Selection, Application, and Installation (incorporates content of SP-69, 77*, 89*, and 90*)
SP-60-2004 Connecting Flange Joint between Tapping Sleeves and Tapping ValvesSP-61-2009 Pressure Testing of ValvesSP-65-2008 High Pressure Chemical Industry Flanges and Threaded Stubs for Use with Lens GasketsSP-67-2002a Butterfly ValvesSP-68-1997 (R 2004) High Pressure Butterfly Valves with Offset DesignSP-69-2003 Pipe Hangers and Supports Selection and Application (ANSI-approved American National Standard)SP-70-2006 Gray Iron Gate Valves Flanged and Threaded EndsSP-71-2005 Gray Iron Swing Check Valves, Flanged and Threaded EndsSP-72-2010 Ball Valves with Flanged or Butt-Welding Ends for General ServiceSP-75-2008 Specification for High-Test, Wrought, Butt-Welding FittingsSP-78-2005a Gray Iron Plug Valves Flanged and Threaded EndsSP-79-2009 Socket Welding Reducer Inserts (Incl. 2010 Errata Sheet)SP-80-2008 Bronze Gate, Globe, Angle, and Check ValvesSP-81-2006a Stainless Steel, Bonnetless, Flanged Knife Gate ValvesSP-83-2006 Class 3000 Steel Pipe Unions Socket Welding and ThreadedSP-85-2002 Gray Iron Globe & Angle Valves Flanged and Threaded EndsSP-86-2009 Guidelines for Metric Data in Standards for Valves, Flanges, Fittings, and ActuatorsSP-87-1991 (R 1996 Reinstated 2011) Factory-Made Butt-Welding Fittings for Class I Nuclear Piping ApplicationsSP-88-2010 Diaphragm Valves
SP-91-2009 Guidelines for Manual Operation of ValvesSP-92-1999 MSS Valve User GuideSP-93-2008 Quality Standard for Steel Castings and Forgings for Valves, Flanges, Fittings, and Other Piping Components Liquid Penetrant
Examination MethodSP-94-2008 Quality Standard for Ferritic and Martensitic Steel Castings for Valves, Flanges, Fittings, and Other Piping Components Ultrasonic
Examination MethodSP-95-2006 Swage(d) Nipples and Bull PlugsSP-96-2001 (R 2005) Guidelines on Terminology for Valves and FittingsSP-97-2006 Integrally Reinforced Forged Branch Outlet Fittings Socket Welding, Threaded, and Buttwelding EndsSP-98-2001 (R 2005) Protective Coatings for the Interior of Valves, Hydrants, and FittingsSP-99-2010 Instrument ValvesSP-100-2009 Qualification Requirements for Elastomer Diaphragms for Nuclear Service Diaphragm ValvesSP-101-1989 (R 2001) Part-Turn Valve Actuator Attachment Flange and Driving Component Dimensions and Performance CharacteristicsSP-102-1989 (R 2001) Multi-Turn Valve Actuator Attachment Flange and Driving Component Dimensions and Performance CharacteristicsSP-104-2003 Wrought Copper Solder Joint Pressure FittingsSP-105-2010 Instrument Valves for Code ApplicationsSP-106-2003 Cast Copper Alloy Flanges and Flanged Fittings Class 125, 150 and 300SP-108-2002 Resilient-Seated Cast-Iron Eccentric Plug ValvesSP-109-1997 (R 2006) Welded Fabricated Copper Solder Joint Pressure Fittings
SP-110-2010 Ball Valves Threaded, Socket-Welding, Solder Joint, Grooved and Flared Ends (Incl. 2010 Errata Sheet)SP-111-2001 (R 2005) Gray-Iron and Ductile-Iron Tapping SleevesSP-112-2010 Quality Standard for Evaluation of Cast Surface Finishes Visual and Tactile Method. This SP must be used with a 10-surface, three dimensional
Cast Surface Comparator, which is a necessary part of the standard. Additional Comparators available separately.SP-113-2001 (R 2007) Connecting Joint between Tapping Machines and Tapping ValvesSP-114-2007 Corrosion Resistant Pipe Fittings Threaded and Socket Welding Class 150 and 1000 (ANSI-approved American National Standard)SP-115-2010 Excess Flow Valves, 1 NPS and Smaller, for Fuel Gas ServiceSP-116-2003 Service-Line Valves and Fittings for Drinking Water SystemsSP-117-2006 Bellows Seals for Globe and Gate ValvesSP-118-2007 Compact Steel Globe & Check Valves Flanged, Flangeless, Threaded & Welding Ends (Chemical & Petroleum Refinery Service)SP-119-2010 Factory-Made Wrought Belled End Pipe Fittings for Socket-WeldingSP-120-2006 Flexible Graphite Packing System for Rising Stem Steel Valves Design RequirementsSP-121-2006 Qualification Testing Methods for Stem Packing for Rising Stem Steel ValvesSP-122-2005 Plastic Industrial Ball ValvesSP-123-1998 (R 2006) Non-Ferrous Threaded and Solder-Joint Unions for Use with Copper Water TubeSP-124-2001 Fabricated Tapping SleevesSP-125-2010 Gray Iron and Ductile Iron In-Line, Spring-Loaded, Center-Guided Check ValvesSP-126-2007 Steel In-Line Spring-Assisted Center Guided Check ValvesSP-127-2001 Bracing for Piping Systems Seismic-Wind-Dynamic Design, Selection, Application
SP-128-2006 Ductile Iron Gate ValvesSP-129-2003 (R 2007) Copper-Nickel Socket-Welding Fittings and UnionsSP-130-2003 Bellows Seals for Instrument ValvesSP-131-2010 Metallic Manually Operated Gas Distribution ValvesSP-132-2010 Compression Packing Systems for Instrument ValvesSP-133-2010 Excess Flow Valves for Low Pressure Fuel Gas AppliancesSP-134-2010 Valves for Cryogenic Service Including Requirements for Body/Bonnet ExtensionsSP-135-2010 High Pressure Knife Gate ValvesSP-136-2007 Ductile Iron Swing Check ValvesSP-137-2007 Quality Standard for Positive Material Identification of Metal Valves, Flanges, Fittings, and Other Piping ComponentsSP-138-2009 Quality Standard Practice for Oxygen Cleaning of Valves & FittingsSP-139-2010 Copper Alloy Gate, Globe, Angle, and Check Valves for Low Pressure/Low Temperature Plumbing Applications
(R YEAR)Indicates year standard reaffirmed without substantive changes Price List Available Upon Request
*SP-77, 89, and 90 have been withdrawn effective 8/23/2010; however, the contents of these historical SPs are now part of newly revised SP-58-2009.
MSS is an ANSI-accredited American National Standards developer. A number of former MSS Standard Practices have been adopted and published by other developers asAmerican National Standards. In order to maintain a single source of authoritative information, MSS has withdrawn its Standard Practices in such cases.
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