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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

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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

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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

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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

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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

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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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    6

    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

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    7

    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

    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

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    8

    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

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    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

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    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

    --`,,```,,,,````-`-`,,`,,`,`,,`---

    / / ^ ^ ^ ~ ^ ~ ~ * ~ ^ ^ ~ ~~ ^ * ~ ^~ \ \

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    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

    --`,,

    ```,,,,

    ````-`-`,,

    `,,

    `,

    `,,

    `---

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    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

    --`,,```,,,,````-`-`,,`,,`,`,,`---

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    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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    / / ^ ^ ^ ~ ^ ~ ~ * ~ ^ ^ ~ ~~ ^ * ~ ^~ \ \

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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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