Xxx

MSS SP-65-2012

High Pressure Chemical Industry Flanges and Threaded Stubs for Use with Lens Gaskets

Standard Practice Developed and Approved by the Manufacturers Standardization Society of the Valve and Fittings Industry, Inc. 127 Park Street, NE Vienna, Virginia 22180-4602 Phone: (703) 281-6613 Fax: (703) 281-6671 E-mail: [email protected]

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MSS

STANDARD PRACTICE

SP-65

This MSS Standard Practice was developed under the consensus of the MSS Technical Committee 110 and the MSS Coordinating Committee. The content of this Standard Practice is the resulting efforts of competent and experienced volunteers to provide an effective, clear, and non-exclusive standard that will benefit the industry as a whole. This MSS Standard Practice describes minimal requirements and 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 to this Standard Practice is established only by reference in other documents such as a code, specification, sales contract, or public law, as applicable. MSS has no power, nor does it undertake, to enforce or certify compliance with this document. Any certification or other statement of compliance with the requirements of this Standard Practice shall not be attributable to MSS and is solely the responsibility of the certifier or maker of the statement. “Unless indicated otherwise within this MSS Standard Practice, other standards documents referenced to herein are identified by the date of issue that was applicable to this Standard Practice at the date of approval of this MSS Standard Practice (see Annex B). This Standard Practice shall remain silent on the validity of those other standards of prior or subsequent dates of issue even though applicable provisions may not have changed.” 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 text, notes, annexes, tables, figures, and references are construed to be essential to the understanding of the message of the standard, and are considered normative unless indicated as “supplemental”. All appendices, if included, that appear in this document are construed as “supplemental”. Note that supplemental information does not include mandatory requirements. Substantive changes in this 2012 edition are “flagged” by parallel bars as shown on the margins of this paragraph. The specific detail of the change may be determined by comparing the material flagged with that in the previous edition. Non-tolerance Dimensions in this Standard Practice are nominal, and, unless otherwise specified, shall be considered "for reference only". Excerpts of this Standard Practice may be quoted with permission. Credit lines should read ‘Extracted from MSS SP-65-2012 with permission of the publisher, Manufacturers Standardization Society of the Valve and Fittings Industry'. Reproduction and/or electronic transmission or dissemination is prohibited under copyright convention unless written permission is granted by the Manufacturers Standardization Society of the Valve and Fittings Industry Inc. All rights reserved. Originally Published: September 1962 Current Edition Approved: September 2011 Current Edition Published: May 2012

Copyright ©, 2012 by Manufacturers Standardization Society of the Valve and Fittings Industry, Inc. Printed in U.S.A.

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MSS

STANDARD PRACTICE

SP-65

TABLE OF CONTENTS

SECTION

1 2 3 4 5 6 7 8 9

PAGE

PURPOSE ................................................................................................................................................ 1 SCOPE ..................................................................................................................................................... 1 PRESSURE-TEMPERATURE RATING ............................................................................................... 1 SIZE … ..................................................................................................................................................... 1 MARKING .............................................................................................................................................. 1 MATERIALS .......................................................................................................................................... 1 FACINGS AND GASKETS .................................................................................................................... 2 WELDING END PREPARATION ......................................................................................................... 2 THREAD OF SCREWED FLANGES .................................................................................................... 2 TESTS ..................................................................................................................................................... 2

TABLE 1 2 3 4 A1

Gasket Details .......................................................................................................................................... 2 Pressure-Temperature Ratings, psi .......................................................................................................... 3 Class 4000, Flange Facing, Gasket, Flange, and Stub Dimensions (Ref. Figure 1) ................................4 Pipe, Tube, and Welding End Dimensions (Ref. Figure 1) ..................................................................... 5 Lowest Pressure-Temperature Ratings for Class 2500 Group #1 and Group #2 Materials ASME B16.5-1981 and ASME B16.5-2009 ........................................................................................... 6

FIGURE 1

Machining for Facings and Dimensions of Gaskets ................................................................................ 5

ANNEX A MSS SP-65 Pressure-Temperature Rating Development Background ....................................................6 B Referenced Standards and Applicable Dates ........................................................................................... 7

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MSS

STANDARD PRACTICE

SP-65

HIGH PRESSURE CHEMICAL INDUSTRY FLANGES AND THREADED STUBS FOR USE WITH LENS GASKETS PURPOSE Flanges specified in the Standard Practice should be used only with the lens gaskets specified herein. This Standard Practice is similar in intent to ASME B16.5, but governs a higher pressure class and lens gasket connection. At the time of writing this Standard Practice, no American Standard existed for pipe walls as heavy as required for this pressure class. Such piping is done mostly with seamless steel tubing. However, for purposes of flange and stub standardization, a definite set of outside diameters has been specified.

These flange and stub dimensions have been calculated on the basis of the attached pipe wall tabulation covering a class of pipe which could be called Schedule 500, as shown in Table 4. It is recognized that most tubing used in this high pressure field will not correspond to these tabulated pipe diameters; however, transition pieces, transitional welds, or “turning down” the pipe should readily permit the use of these standard flanges and stubs. 4. MARKING

1. SCOPE

Flanges shall be marked in accordance with MSS SP-25, except rating designation shall be "4000 SP-65".

This Standard Practice establishes requirements for cast and forged steel flanges (welding neck and straight threaded) and threaded stubs designed especially for use in the chemical industry with end connections making use of lens gaskets.

5. MATERIALS 5.1 General This Standard Practice is based on forged and cast steel flange material as produced under various ASTM specifications for pressure piping work.

2. PRESSURE-TEMPERATURE RATING 2.1 For reference purposes the material covered in this Standard Practice shall be identified as “4000 SP-65”. Pressure ratings applicable to any of the materials identified in Section 5 are given in Table 2 (U.S. customary units). --`,`,`,`,,``,`````,`,`,,``,,,,,-`-`,,`,,`,`,,`---

5.2 Forged and Cast Materials Acceptable flange materials shall be forged or cast Group 1 and Group 2 product forms as listed in Table 1A of ASME B16.5; except the low carbon grades of stainless steel, Material Group 2.3 of Table 1A, shall not be used. The notes of Table 1A, Table 2, and Table II of ASME B16.5 also apply to the applicable listed material.

2.2 The reference temperature is the metal temperature, and in general, this is the same as the temperature of the contained fluid. Use of a pressure rating corresponding to a temperature other than that of the contained fluid is the responsibility of the user, subject to the requirements of applicable codes and standards.

5.3 Gasket Materials The lens gasket material shall be soft iron, unless limitations of temperature or corrosion resistance require another material be selected. The selected gasket material shall have a chemical composition and corrosion resistance compatible with the flange material. See Table 1 for gasket materials and hardness limits.

3. SIZE The sizing used throughout this Standard Practice is nominal pipe size (NPS). This is based on standard pipe sizes as specified in ASME B36.10M, in so far as the relationship between size and outside diameter is concerned. 1

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MSS

STANDARD PRACTICE 8. THREAD OF SCREWED FLANGES

TABLE 1 Gasket Details Gasket Material Soft Iron Low Carbon Steel 5% Cr-1/2% Mo Steel Type 410 Steel Type 304 Steel Type 316 Steel Type 347 Steel

8.1 The internal thread of ring (hub-less) flanges, and the external thread of pipe of pipe stubs, shall be NPSM straight pipe threads for free fitting mechanical joints, in accordance with ASME B1.20.1.

Maximum Hardness Brinell 90 120 130 170 160 160 160

SP-65

Rockwell B Scale 56 68 72 86 83 83 83

8.2 In order to accommodate the established lens ring gasket at the end of the threaded pipe, it is necessary to increase the O.D. of the pipe used with NPS 2 and smaller threaded flanges. Hence, the thread size for NPS 3/4, 1½, and 2 flanges is one size larger than the nominal size; e.g., the O.D. and thread of NPS 1 is required for the NPS 3/4 flange. The thread and pipe size may be obtained by upsetting the pipe end or by using a stub piece, to affect the transition of line pipe to the proper size flange.

5.4 Bolting Lens-gasketed flanged joints are dependent upon surface deformation of the solid-metal lens gasket for sealing effectiveness. High strength bolting and adequate assembly bolting torque are important for satisfactory performance. Bolting material should be equal to ASTM A193/A193M, Grade B7 for ferritic steel flanges. Nuts should be equal to ASTM A194/A194M, Class 2H. For austenitic or special alloy flanges, ASTM A193/A193M, Grade B7 bolting may be used if elevated temperatures are not involved. If elevated temperatures, corrosive environments, or both are involved, special high strength bolting material should be used. The strength, thermal expansion characteristics, and corrosive resistance of special bolting material should be taken into consideration.

8.3 Since the combined strength of flange bolting can be greater than the strength of the flange stub thread, care should be taken in making up the joint. 9. TESTS Flanges and forged steel stubs are not required to be tested. Flanges attached (or integral with) piping, pressure vessels, or other equipment may be hydrostatically tested at 15,000 psi.

6. FACINGS AND GASKETS --`,`,`,`,,``,`````,`,`,,``,,,,,-`-`,,`,,`,`,,`---

The machining for facings and the dimensions of gaskets shall be as shown in Table 3 and as illustrated in Figure 1. 7. WELDING END PREPARATION Unless otherwise agreed to by the manufacturer and user, the welding end of welding neck flanges and stubs shall be prepared in accordance with ASME B16.25. Dimensions shown in Table 4 shall be used, except in such cases that require special dimensions in order to make transition welds to pipe or tubing of other dimensions. 2 Copyright MSS Provided by IHS under license with MSS No reproduction or networking permitted without license from IHS

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MSS

STANDARD PRACTICE

SP-65

TABLE 2 Pressure Temperature Ratings, psi (a) Service Temperature (°F)

Maximum Pressure

-20 to 100 200 300

10,000 9,250 7,950

400 500 600

7,075 6,575 6,250

650 700 750

6,150 6,075 6,000

800 850

5,875 4,000

Hydrostatic Shell Test

15,000

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NOTE: (a) See Annex A for background on pressure-temperature rating development.

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Bolt Circle Dia. ±0.06 No. of Studs Stud Dia. Bolt Hole Dia. ±0.016

+0.12 -0.00 Hub. Dia. ±0.06 Length through Hub ±0.06

Thickness

Bevel O.D. ±0.06 Raised Face O.D. ±0.03 O.D. ±0.06 Bore ±0.03

+0.03 -0.00 O.D. ±0.03 Contact Dia. Ref. Thickness ±0.03 Radius ±0.06

I.D.

4

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(2) See Section 8.2.

3.50 4 3/4 0.875 1.05 11.5 1.293 1.237 3.12

A T.P.(1) O.D.(1) P.D.(1) Z

1.75 2.88

X Y

B.C. # S.D. B.H.D.

1.12

t

1.19 1.69 5.12 0.48

1.12 0.770 0.62 1.12

D G M S

F R O B

0.49

Bg

3/4

1.32 11.5 1.877 1.820 3.25

4.00 4 7/8 1.000

2.06 3.00

1.25

1.69 2.00 5.88 0.64

1.62 1.026 0.75 1.50

0.68

1

1.90 11.5 2.351 2.294 3.62

4.88 4 1 1.125

2.75 3.38

1.38

2.06 2.88 7.00 0.98

2.00 1.368 0.75 2.00

1.05

11⁄2

2.38 8 2.841 2.760 4.44

6.50 8 7/8 1.000

4.12 4.19

1.69

2.50 3.62 8.50 1.26

2.44 1.710 0.81 2.50

1.30

2

2.88 8 2.841 2.760 4.56

7.50 8 1 1.125

4.88 4.31

2.00

2.88 4.12 9.62 1.55

2.81 1.967 0.88 2.88

1.55

21⁄2

9.50 8 11⁄4 1.375 4.50 8 4.466 4.385 5.38

3.50 8 3.467 3.386 5.06

6.37 5.12

2.62

4.06 6.19 12.25 2.50

4.00 2.993 0.94 4.38

2.55

4

8.0 8 11⁄8 1.250

5.25 4.81

2.25

3.44 5.00 10.50 1.92

3.38 2.480 0.88 3.62

2.05

3

Nominal Pipe Size (NPS)

5.56 8 5.528 5.447 6.68

11.50 8 11⁄2 1.625

7.75 6.44

3.19

5.00 7.31 14.75 3.12

4.94 3.762 1.06 5.50

3.18

5

6.62 8 6.585 6.503 7.31

12.50 12 13⁄8 1.500

9.00 7.06

3.56

5.81 8.50 15.50 3.74

5.75 4.532 1.06 6.62

3.80

6

Dimensions in inches.

STANDARD PRACTICE

NOTES: (1) See Section 8.

Pipe Diameter(2) Pipe or Stub Thread Pitch Pipe or Stub Thread Outside Dia. (max.) Pipe or Stub Thread Pitch Dia. (max.) Stub Length ±0.06

Drilling

Flange

Gasket

Ref. Figure 1

(Ref. Figure 1)

TABLE 3 Class 4000, Flange Facing, Gasket, Flange, and Stub Dimensions

MSS SP-65

MSS

STANDARD PRACTICE

SP-65

TABLE 4 Pipe, Tube, and Welding End Dimensions (Ref. Figure 1)

Dimensions in Inches.

Nominal Pipe Size (NPS)

Theoretical Schedule No.

Outside Diameter of Pipe A

Inside Diameter of Pipe B

Wall Thickness T

3/4 1 1 1⁄ 2 2 2 1⁄ 2 3 4 5 6

500 500 500 500 500 500 500 500 500

1.05 1.32 1.90 2.38 2.88 3.50 4.50 5.56 6.62

0.48 0.64 0.98 1.26 1.55 1.92 2.50 3.12 3.74

0.284 0.339 0.460 0.559 0.663 0.793 1.001 1.223 1.443

FIGURE 1 Machining for Facings and Dimensions of Gaskets 5

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MSS

STANDARD PRACTICE

SP-65

ANNEX A MSS SP-65 Pressure-Temperature Rating Development Background The Class 4000 pressure-temperature ratings, as presented in Table 2, were developed during the period that ASME B16.5-1981 edition was current. The pressure ratings of all Group #1 and Group #2, ASME B16.5-1981, Table 1 materials, except the low carbon grades of stainless steel Material Group 2.3, were considered at each temperature up to 850 °F. The ASME B16.5-1981 overall lowest pressure rating of all the Group #1 and Group #2 materials at each temperature was considered in the Class 4000 pressure-temperature rating. In this way the Class 4000 pressuretemperature ratings were simplified and standardized at each temperature up to 850 °F so that all Group #1 and Group #2 ASME B16.5-1981 materials could support the pressure-temperature ratings of this Standard Practice. During the 1998 review of this Standard Practice, the Technical Committee checked the pressure-temperature ratings of this Standard Practice against those published for all materials, except the low carbon grade of stainless steel Material Group 2.3, in ASME B16.5-1996. The review indicated that the combined lowest pressure-temperature rating of Group #1 and Group #2 materials, versus the ASME B16.5-1981 pressure-temperature ratings did not substantially change, and that the ASME B16.5-1996 edition allowed for even higher pressure ratings at a number of temperatures up to 850 °F. With this background, the pressure temperature-ratings table, as originally developed under ASME B16.5-1981, was retained (see Table 2), and its reference to ASME B16.5-1996 pressure-temperature ratings was justified. During the 2007 review, the 1998 review above was updated to include ASME B16.5-2003 data. The Material Groups 2.10 and 2.12 were new materials to the ASME B16.5-2003 edition and were, therefore, not in the ASME B16.5-1996 edition. The MSS Technical Committee noted the slight negative difference in data at the 200 °F and 300 °F temperatures versus the original ASME B16.5-1981 data caused by the inclusion of Material Groups 2.10 and 2.12 in ASME B16.52003 but decided to leave the Table 2 pressure temperature ratings as originally developed. During the 2011 review, the 2007 review above was updated to include a review of ASME B16.5-2009 data noted in Table A1. The Technical Committee continues to note the slight negative difference in data at the 200 °F and 300 °F temperatures versus the original ASME B16.5-1981 data caused by the inclusion of Material Groups 2.10 and 2.12 in ASME B16.5-2003 and 2009 editions, but decided to leave the Table 2 pressure temperature ratings as originally developed.

TABLE A1 Lowest Pressure-Temperature Ratings for Class 2500 Group #1 and Group #2 Materials(a) ASME B16.5-1981 and ASME B16.5-2009 Temperature (°F)

B16.5-81 Rating

Material Group

B16.5-2009 Rating

Material Group

-20 to 100 5145 1.4 5145 1.4 200 4680 1.4 4580 2.10 & 2.12 300 4400 2.1 4220 2.10 & 2.12 400 3920 2.1 4040 2.10 & 2.12 500 3640 2.1 3880 2.1 600 3460 2.1 3680 2.1 650 3400 2.1 3600 2.1 700 3360 2.1 3520 2.1 750 3320 2.1 3440 2.1 800 3085 1.4 3085 1.4 850 2230 1.4 2485 1.3 & 1.4 NOTE: (a) Class 2500 was selected for comparison; however, any pressure class could have been used and would have given similar comparative ratings.

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MSS

STANDARD PRACTICE

SP-65

ANNEX B Referenced Standards and Applicable Dates This Annex is an integral part of this Standard Practice and is placed after the main text for convenience. Standard Name

Description

ASME; ANSI/ASME B1.20.1-1983 (R2006) B16.5-2009 B16.5-2003 B16.5-1996 B16.5-1981 B16.25-2007 B36.10M-2004 (R2010)

Standard Specification for:

A193/A193M-11a A194/A194M-11

Alloy-Steel and Stainless Steel Bolting for High Temperature or High Pressure Service and Other Special Purpose Applications Carbon and Alloy Steel Nuts for Bolts for High Pressure or High-Temperature Service, or Both

MSS SP-25-2008

Standard Marking System for Valves, Fittings, Flanges, and Unions

The following organizations appear in the above list: ANSI

American National Standards Institute, Inc. 25 West 43rd Street, Fourth Floor New York, NY 10036-7406

ASME

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

ASTM

ASTM International 100 Barr Harbor Drive, P.O. Box C700 West Conshohocken, PA 19428-2959

MSS

Manufacturers Standardization Society of the Valve and Fittings Industry, Inc. 127 Park Street, NE Vienna, VA 22180-4602

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ASTM

Pipe Threads, General Purpose (Inch) Pipe Flanges and Flanged Fittings: NPS 1/2 through 24 Metric/Inch Standard Pipe Flanges and Flanged Fittings: NPS 1/2 through 24 Pipe Flanges & Flanged Fittings: NPS 1/2 Through NPS 24; including 1998 Addenda Pipe Flanges & Flanged Fittings Buttwelding Ends Welded and Seamless Wrought Steel Pipe

TITLE SP-6-2012 SP-9-2008 SP-25-2008 SP-42-2009 SP-43-2008 SP-44-2010 SP-45-2003 SP-51-2012 SP-53-1999 SP-54-1999 SP-55-2011 SP-58-2009 SP-60-2012 SP-61-2009 SP-65-2012 SP-67-2011 SP-68-2011 SP-69-2003 SP-70-2011 SP-71-2011 SP-72-2010a SP-75-2008 SP-78-2011 SP-79-2011 SP-80-2008 SP-81-2006a SP-83-2006 SP-85-2011 SP-86-2009 SP-87-1991 SP-88-2010 SP-91-2009 SP-92-2012 SP-93-2008 SP-94-2008 SP-95-2006 SP-96-2011 SP-97-2012 SP-98-2012 SP-99-2010 SP-100-2009 SP-101-1989 SP-102-1989 SP-104-2012 SP-105-2010 SP-106-2012 SP-108-2012 SP-109-2012 SP-110-2010 SP-111-2012 SP-112-2010

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SP-113-2012 SP-114-2007 SP-115-2010 SP-116-2011 SP-117-2011 SP-118-2007 SP-119-2010 SP-120-2011 SP-121-2006 SP-122-2012 SP-123-1998 SP-124-2012 SP-125-2010 SP-126-2007 SP-127-2001 SP-128-2012 SP-129-2003 SP-130-2003 SP-131-2010 SP-132-2010 SP-133-2010 SP-134-2012 SP-135-2010 SP-136-2007 SP-137-2007 SP-138-2009 SP-139-2010 SP-140-2012 SP-141-2012 SP-142-2012 SP-143-2012

Listing of MSS Standard Practices (as of May, 2012) Standard Finishes for Contact Faces of Pipe Flanges and Connecting-End Flanges of Valves and Fittings Spot Facing for Bronze, Iron and Steel Flanges Standard Marking System for Valves, Fittings, Flanges, and Unions Corrosion Resistant Gate, Globe, Angle and Check Valves with Flanged and Butt Weld Ends (Classes 150, 300 & 600) Wrought and Fabricated Butt-Welding Fittings for Low Pressure, Corrosion Resistant Applications (Incl. 2010 Errata Sheet) Steel Pipeline Flanges (incl. 2011 Errata Sheet) (R 2008) Bypass and Drain Connections Class 150LW Corrosion Resistant Flanges and Cast Flanged Fittings (R 2007) Quality Standard for Steel Castings and Forgings for Valves, Flanges, and Fittings and Other Piping Components – Magnetic Particle Examination Method (R 2007) Quality Standard for Steel Castings and Forgings for Valves, Flanges, and Fittings and Other Piping Components – Radiographic Examination Method Quality Standard for Steel Castings for Valves, Flanges, Fittings, and Other Piping Components – Visual Method for Evaluation of Surface Irregularities (ANSI-approved American National Standard) Pipe Hangers and Supports – Materials, Design, Manufacture, Selection, Application, and Installation (incorporates content of SP-69, 77, 89, and 90) (ANSI-approved American National Standard) Connecting Flange Joints between Tapping Sleeves and Tapping Valves Pressure Testing of Valves High Pressure Chemical Industry Flanges and Threaded Stubs for Use with Lens Gaskets Butterfly Valves High Pressure Butterfly Valves with Offset Design Pipe Hangers and Supports – Selection and Application (ANSI-approved American National Standard) Gray Iron Gate Valves, Flanged and Threaded Ends Gray Iron Swing Check Valves, Flanged and Threaded Ends Ball Valves with Flanged or Butt-Welding Ends for General Service Specification for High-Test, Wrought, Butt-Welding Fittings Gray Iron Plug Valves, Flanged and Threaded Ends Socket Welding Reducer Inserts Bronze Gate, Globe, Angle, and Check Valves Stainless Steel, Bonnetless, Flanged Knife Gate Valves Class 3000 Steel Pipe Unions Socket Welding and Threaded Gray Iron Globe & Angle Valves, Flanged and Threaded Ends Guidelines for Metric Data in Standards for Valves, Flanges, Fittings, and Actuators (Incl. 2011 Errata Sheet) (R 1996 – Reinstated 2011) Factory-Made Butt-Welding Fittings for Class I Nuclear Piping Applications Diaphragm Valves Guidelines for Manual Operation of Valves MSS Valve User Guide Quality Standard for Steel Castings and Forgings for Valves, Flanges, Fittings, and Other Piping Components – Liquid Penetrant Examination Method Quality Standard for Ferritic and Martensitic Steel Castings for Valves, Flanges, Fittings, and Other Piping Components – Ultrasonic Examination Method Swage(d) Nipples and Bull Plugs Guidelines on Terminology for Valves and Fittings Integrally Reinforced Forged Branch Outlet Fittings – Socket Welding, Threaded, and Buttwelding Ends Protective Coatings for the Interior of Valves, Hydrants, and Fittings Instrument Valves Qualification Requirements for Elastomer Diaphragms for Nuclear Service Diaphragm Valves (R 2001) Part-Turn Valve Actuator Attachment – Flange and Driving Component Dimensions and Performance Characteristics (R 2001) Multi-Turn Valve Actuator Attachment – Flange and Driving Component Dimensions and Performance Characteristics Wrought Copper Solder-Joint Pressure Fittings Instrument Valves for Code Applications Cast Copper Alloy Flanges and Flanged Fittings: Class 125, 150, and 300 Resilient-Seated Cast Iron Eccentric Plug Valves Welded-Fabricated Copper Solder-Joint Pressure Fittings Ball Valves Threaded, Socket-Welding, Solder Joint, Grooved and Flared Ends (incl. 2010 Errata Sheet) Gray-Iron and Ductile-Iron Tapping Sleeves 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. Connecting Joints between Tapping Machines and Tapping Valves Corrosion Resistant Pipe Fittings Threaded and Socket Welding Class 150 and 1000 (ANSI-approved American National Standard) Excess Flow Valves, 1¼ NPS and Smaller, for Fuel Gas Service Service-Line Valves and Fittings for Drinking Water Systems Bellows Seals for Globe and Gate Valves Compact Steel Globe & Check Valves – Flanged, Flangeless, Threaded & Welding Ends (Chemical & Petroleum Refinery Service) Factory-Made Wrought Belled End Pipe Fittings for Socket-Welding Flexible Graphite Packing System for Rising Stem Valves – Design Requirements Qualification Testing Methods for Stem Packing for Rising Stem Steel Valves Plastic Industrial Ball Valves (R 2006) Non-Ferrous Threaded and Solder-Joint Unions for Use with Copper Water Tube Fabricated Tapping Sleeves Gray Iron and Ductile Iron In-Line, Spring-Loaded, Center-Guided Check Valves Steel In-Line Spring-Assisted Center Guided Check Valves Bracing for Piping Systems Seismic-Wind-Dynamic Design, Selection, Application Ductile Iron Gate Valves (R 2007) Copper-Nickel Socket-Welding Fittings and Unions Bellows Seals for Instrument Valves Metallic Manually Operated Gas Distribution Valves Compression Packing Systems for Instrument Valves Excess Flow Valves for Low Pressure Fuel Gas Appliances Valves for Cryogenic Service, including Requirements for Body/Bonnet Extensions High Pressure Knife Gate Valves Ductile Iron Swing Check Valves Quality Standard for Positive Material Identification of Metal Valves, Flanges, Fittings, and Other Piping Components Quality Standard Practice for Oxygen Cleaning of Valves & Fittings Copper Alloy Gate, Globe, Angle, and Check Valves for Low Pressure/Low Temperature Plumbing Applications Quality Standard Practice for Preparation of Valves and Fittings for Silicone-Free Service Multi-Turn and Check Valve Modifications Excess Flow Valves for Fuel Gas Service, NPS 1½ through 12 Live-Loaded Valve Stem Packing Systems

(R YEAR) Indicates year reaffirmed • Price List Available Upon Request • MSS is an ANSI-accredited American National Standards developer

Manufacturers Standardization Society of the Valve and Fittings Industry, Inc.

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for Resale, 08/01/2012 17:01:28 MDT MSS-IHSNot SP-65-2012