STD-ASME BLb.20-ENGt 1778 E 075ïb70 OhLb93L b24 m

Transcription

1 STD-ASME BLb.20-ENGt 1778 E 075ïb70 OhLb93L b24 m

2 ~ STD-ASME BLb=Zü-ENGL 4998 I0759b70 ObLb732 5b0 W The American Society of Mechanical Engineers A N A M E R I C A N N A T I O N A L S T A N D A R D METALLIE GASKETS FOR PIPE FLANGES Ring-Joint, Spiral-Wound, and Jackeltd ASME B MM8 (Revision 01 ASME B )

3 ~~ ~~ STD*ASME BLb-ZU-ENGL 1998 D 0759b70 ObLb733 9T7 = Date of Issuance: April 28, 2000 The 1998 edition of this Standard is being issued with an automatic addenda subscription service. The use of addenda allows revisions made in response to public review comments or committee actions to be published on a regular yearly basis; revisions published in addenda will become effective 6 months after the Date of Issuance of the addenda. The next edition of this Standard is scheduled for publication in ASME issues written replies to inquiries concerning interpretations of technical aspects of this Standard. The interpretations will be included with the above addenda service. ASME is the registered trademark of The American Society of Mechanical Engineers. This code or standard was developed under procedures accredited as meeting the criteria for American National Standards. The Standards Committee that approved the code or standard was balanced to assure that individuals from competent and concerned interests have had an opportunity to participate. The proposed code or standard was made available for public review and comment that provides an opportunity for additional public input from industry, academia, regulatory agencies, and the public-at-large. ASME does not approve, rate, or endorse any item, construction, proprietary device, or activity. ASME does not take any position with respect to the validity of any patent rights asserted in connection with any items mentioned in this document, and does not undertake to insure anyone utilizing a standard against liability for infringement of any applicable letters patent, nor assumes any such liability. Users of a code or standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, is entirely their own responsibility. Participation by federal agency representative(s) or person(s) affiliated with industry is not to be interpreted as government or industry endorsement of this code or standard. ASME accepts responsibility for only those interpretations issued in accordance with established ASME procedures and policies, which precludes the issuance of interpretations by individuals. No part of this document may be reproduced in any form, in an electronic retrieval system or otherwise, without the prior written permission of the publisher. The American Society of Mechanical Engineers Three Park Avenue, New York, NY Copyright Q 2000 by THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS All Rights Reserved Printed in U.S.A.

4 STDeASME BLb-ZOA-ENGL b70 ObL7b7b T37 = AN AMERICAN NATIONAL STANDARD ASME BI 6.20a-2000 ADDENDA to ASME B16.20-I998 METALLIC GASKETS FOR PIPE FLANGES Ring-Joint, Spiral-Wound, and Jacketed THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS Three Park Avenue New York, NY 10016

5 STD-ASME BLb-20A-ENGL 2000 H 0757b70 ObL7b Date of Issuance: July 21, 2000 ASME is the registered trademark of The American Society of Mechanical Engineers. This code or standard was developed under procedures accredited as meeting the criteria for American National Standards. The Standards Committee that approved the code or standard was balanced to assure that individuals from competent and concerned interests have had an opportunity to participate. The proposed code or standard was made available for public review and comment that provides an opportunity for additional public input from industry, academia, regulatory agencies, and the public-at-large. ASME does not "approve," "rate," or "endorse" any item, construction, proprietary device, or activity. ASME does not take any position with respect to the validity of any patent rights asserted in connection with any items mentioned in this document, and does not undertake to insure anyone utilizing a standard against liability for infringement of any applicable letters patent, nor assume any such liability. Users of a code or standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, is entirely their own responsibility. Participation by federal agency representative(s) or person(s) affiliated with industry is not to be interpreted as government or industry endorsement of this code or standard. ASME accepts responsibility for only those interpretations of this document issued in accordance with the established ACME procedures and policies, which precludes the issuance of interpretations by individuals. No part of this document may be reproduced in any form, in an electronic retrieval system or otherwise, without the prior written permission of the publisher. The American Society of Mechanical Engineers Three Park Avenue, New York, NY Copyright O 2000 by THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS All Rights Reserved Printed in U.S.A.

6 STD-ASME BLb.20A-ENGL b70 ObL7b78 BOT ASME BI 6.20a-2000 Following approval by the ASME BI6 Committee and ASME, and after public review, ASME B16.20a was approved by the American National Standards Institute on May 3, Addenda to the 1998 edition of ASME B are issued in the form of replacement pages. Revisions, additions, and deletions are incorporated directly into the affected pages. It is advisable, however, that this page, the Addenda title and copyright pages, and all replaced pages be retained for reference. SUMMARY OF CHANGES This is the first Addenda to be published to ASME B Replace or insert the pages listed. Changes given below are identified on the pages by a margin note, (a), placed next to the affected area. The pages not listed are the reverse sides of the listed pages and contain no changes. Page Location Change V Committee Roster Updated to reflect Addenda xi Contents Updated to reflect Addenda 2, 2.1 Paragraph Revised 21 Table 12 Notes (1 ) and (3) revised Table 14 Table Table 19 Revised 35 Mandatory Annex I Revised General Note (c) and Notes (i) and (2) rev i sed (i) Title revised (2) General Notes added

7 FOREWORD Ring-joint gaskets and grooves probably originated in the boiler field, where they were used in various forms for manhole covers, autoclaves, and other closures; however, it was in the oil industry (both in the production and refining of oil) that they received the greatest recognition and were developed into their present form. Their use expanded steadily as temperatures and pressures were increased in steam plants. Tests examining their application in flanges and valves were conducted as early as In June 1936, the American Petroleum Institute (API) issued Tentative Standard on Ring-Joints for Steel Flanges and Flange Unions for use with API Tubular Goods. This standard was known as API Specification 6B, Ring-Joint Flanges. Following the acceptance of ring-joints for flanges and valves by API and the issuance of their standard, ASA B16e on Steel Pipe Flanges and Flanged Fittings was revised to include them, and the 1939 edition included standard dimensions for a full line of ring-joint flanges based on the API standard. Development work continued, and API formulated Standard 6E, Specification for Wellhead Equipment, which included ring-joints not covered in ASA B16e In 1949, the American Standards Association (ASA), Sectional Committee B 16, Subcommittee 3, Steel Flanges and Flanged Fittings, assembled the available information on ring-joint gaskets into a single standard. ASA approval was granted on April 30, 1952, with the designation ASA B Ring gaskets for Class 900 (900 Ib at that time) in sizes NPS 26 through 36 were added, and ASA approval was granted on April 30, An updated version was submitted, and ASA approval was granted on April 4, 1955, with the designation ASA B i The standard was reviewed, and reaffirmation approval was granted by the ASA on April 25, The standard was reviewed, and reaffirmation approval was granted by the American National Standards Institute (ANSI) on April 25, 1973, with the designation of an American National Standard. API requested that ASME convert their gasket standard, API 601, into an ASME American National Standard. As a result of that request, this edition was expanded to include requirements for spiral-wound and jacketed gaskets that were formerly listed in API 601, 7th edition, Also, ring-joint groove dimensions are not included in this edition because they are included in ASMWANSI B , titled Pipe Flanges and Flanged Fittings, and ASME B , titled Large Diameter Steel Flanges. The 1993 edition was approved by the BI6 Standards Committee. Following approval by ASME, approval by ANSI was given on January 22, 1993, with the designation ASME B In the 1998 edition of ASME B16.20, reference standards are updated, a quality system program annex is added, inner ring inside diameters for spiral-wound gaskets are revised, and several editorial revisions are made. Following approval by ASME B 16 Subcommittee B and the BI6 Main Committee, ANSI approved this American National Standard on November 20, Requests for interpretations or suggestions for revision should be sent to The American Society of Mechanical Engineers; Secretary, B 16 Committee; Three Park Avenue, New York, New York

8 ASME BI6 COMMITTEE Standardization of Valves, Flanges, Fittings, Gaskets, and Valve Actuators (The following is the roster of the Committee at the time of approval of this Standard.) OFFICERS W. N. McLean, Chair H. R. Sonderegger, Vice Chair P. A. Reddington, Secretary COMMITTEE PERSONNEL W. L. Ballis, Consultant, London, Ohio R. W. Barnes, Anric Enterprises, Etobicoke, Ontario, Canada R. R. Brodin, Fisher Controls International, Inc., Marshalltown, Iowa M. A. Clark, Nibco, Inc., Elkhart, Indiana A. Cohen, A. Cohen and Associates, Albuquerque, New Mexico C. E. Floren, Mueller Co., Decatur. Illinois D. R. Frikken, Solutia. Inc., St. Louis, Missouri R. Henrich, Minnegasco, Inc., Golden Valley, Minnesota J. C. Inch, Mueller Refrigeration Products Co., Hartsville, Tennessee G. A. Jolly, Vogt Valve Co., Louisville, Kentucky W. G. Knecht, BW/IP International, Inc., Williamsport, Pennsylvania R. Koester, The William Powell Co., Cincinnati, Ohio W. N. McLean, Newco Valves, Palos Park, Illinois M. L. Nayyar, Bechtel Power Corp., Gaithersburg, Maryland P. A. Reddington, American Society of Mechanical Engineers, New York, New York R. A. Schmidt, Trinity-Ladish Co., Russellville, Arkansas H. R. Sonderegger, Grinnell Corp., Cranston, Rhode Island W. M. Stephan, Flexitallic, Inc., Mount Laurel, New Jersey T. F. Stroud, Ductile Iron Pipe Research Association, Birmingham, Alabama M. D. Wasicek, ABS Americas, Houston, Texas R. E. White, Richard E. White and Associates, South Bend, Indiana D. A. Williams, Southern Company Services, Birmingham, Alabama L. A. Willis, The Dow Chemical Co., Freeport, Texas W. R. Worley, Union Carbide Corp.. South Charleston, West Virginia SUBCOMMITTEE G - GASKETS FOR FLANGED JOINTS W. M. Stephan, Chair, Flexitallic, Inc., Mount Laurel, New Jersey C. B. Gillis, Vice Chair, Lamons Gasket Co., Houston, Texas M. R. Argenziano, Secretary, American Society of Mechanical Engineers, New York, New York K. A. Benton, Leader Gasket, Inc., Houston, Texas W. E. Holden, Solutia, Inc., Alvin, Texas D. H. Monroe, Consultant, Birmingham, Alabama R. T. Mueller, ExxonMobil Research and Engineering Co., Florham Park, New Jersey D. F. Reid, Garlock Metallic Gasket Division, Houston, Texas J. Tzeng, Ucar Carbon Co., Inc., Parma, Ohio W. R. Worley, Union Carbide Corp., South Charleston, West Virginia V

9 CORRESPONDENCE WITH THE BI6 COMMITTEE General. ASME Standards are developed and maintained with the intent to represent the consensus of concerned interests. As such, users of this Standard may interact with the Committee by requesting interpretations, proposing revisions, and attending Committee meetings. Correspondence should be addressed to: Secretary, B 16 Main Committee The American Society of Mechanical Engineers Three Park Avenue New York, NY i Proposing Revisions. Revisions are made periodically to the Standard to incorporate changes that appear necessary or desirable, as demonstrated by the experience gained from the application of the Standard. Approved revisions will be published periodically. The Committee welcomes proposals for revisions to this Standard. Such proposals should be as specific as possible, citing the paragraph number(s), the proposed wording, and a detailed description of the reasons for the proposal, including any pertinent documentation. Interpretations. Upon request, the B 16 Committee will render an interpretation of any requirement of the Standard. interpretations can only be rendered in response to a written request sent to the Secretary of the B16 Main Committee. The request for interpretation should be clear and unambiguous. It is further recommended that the inquirer submit hidher request in the following format: Subject: Edition: Question: Cite the applicable paragraph number(s) and the topic of the inquiry. Cite the applicable edition of the Standard for which the interpretation is being requested. Phrase the question as a request for an interpretation of a specific requirement suitable for general understanding and use, not as a request for an approval of a proprietary design or situation. The inquirer may also include any plans or drawings, which are necessary to explain the question; however, they should not contain proprietary names or information. Requests that are not in this format will be rewritten in this format by the Committee prior to being answered, which may inadvertently change the intent of the original request. ASME procedures provide for reconsideration of any interpretation when or if additional information that might affect an interpretation is available. Further, persons aggrieved by an interpretation may appeal to the cognizant ASME Committee or Subcommittee. ASME does not approve, certify, rate, or endorse any item, construction, proprietary device, or activity. Attending Committee Meetings. The B 16 Main Committee regularly holds meetings, which are open to the public. Persons wishing to attend any meeting should contact the Secretary of the B16 Main Committee.

10 IMPORTANT INFORMATION CONCERNING USE OF ASBESTOS OR ALTERNATIVE MATERIALS Asbestos is referenced for use as a filler material in metallic gaskets. It has served as a universal sealing material, compatible with most fluid services. It has been of extreme usefulness in minimizing fire hazards. Certain serious adverse health effects are associated with asbestos, among them the serious and often fatal diseases of lung cancer, asbestosis, and mesothelioma (a cancer of the chest and abdominal linings). The degree of exposure to asbestos varies with the product and the work practices involved. Consult the most recent edition of the Occupational Safety and Health Administration, U.S. Department of Labor, Occupational Safety and Health Standard for Asbestos, Tremolite, Anthophyllite, and Actinolite, 29 Code of Federal Regulations Section ; the U.S. Environmental Protection Agency, National Emission Standard for Asbestos, 40 Code of Federal Regulations Sections through ; and the proposed nile by the U.S. Environmental Protection Agency proposing labeling requirements and phased banning of asbestos products, published at 5 1 Federal Register (January 29, 1986). There are currently in use and under development a number of substitute materials to replace asbestos in certain applications. Manufacturers and users are encouraged to develop and use effective substitute materials that can meet the specifications for, and operating requirements of, the equipment to which they would apply. Information concerning safety and health risks and proper precautions with respect to particular materials and conditions should be obtained from one s employer, the manufacturer or supplier of that material, or the Material Safety Data Sheet. ix

11 STD-ASME BLb.20A-ENGL b70 ObL7b80 Vb8 CONTENTS Foreword Committee Roster.. Correspondence With the B 16 Committee. Important Information Concerning Use of Asbestos or Alternative Materials 1 Scope. 2 Ring-Joint Gaskets.. 3 Spiral-Wound Gaskets.. 4 Jacketed Gaskets. Tables I Maximum Hardness for Ring Gaskets.. 2 Ring Gasket Markings. 3 Type R Ring Gasket Dimensions and Tolerances 4 Pipe Sizes for Type R Ring Gaskets Suitable for Referenced Standards 5 Type RX Ring Gasket Dimensions and Tolerances. 6 Pipe Sizes for Type RX Ring Gaskets Suitable for Referenced Standards. 7 Type BX Ring Gasket Dimensions and Tolerances. 8 Pipe Sizes for Type BX Ring Gaskets Suitable for Referenced Standards. 9 Dimensions for Spiral-Wound Gaskets Used With ASME B16.5 Flanges.. IO Dimensions for Spiral-Wound Gaskets Used With ASME B16.47 Series A Flanges 11 Dimensions for Spiral-Wound Gaskets Used With ASME B Series B Flanges. 12 Inner-Ring Inside Diameters for Spiral-Wound Gaskets. 13 Inner-Ring Inside Diameters for Spiral-Wound Gaskets Used Between ASME B16.47 Series A Flanges 14 Inner-Ring Inside Diameters for Spiral-Wound Gaskets Used Between ASME B16.47 Series B Flanges 15 Minimum Pipe Wall Thickness Suitable for Use of Spiral-Wound Gaskets With Inner Rings for ASME B16.5 Flanges.. 16 Maximum Bore of ASME Flanges for Use With Spiral-Wound Gaskets.. 17 Maximum Bore of ASME B Series A Flanges for Use With Spiral-Wound Gaskets.. 18 Maximum Bore of ASME B16.47 Series B Flanges for Use With Spiral-Wound Gaskets.. 19 Color Coding and Abbreviations for Spiral-Wound Gasket Materials 20 Example Markings for Spiral-Wound Gaskets Jacketed Gasket Dimensions for ASME B16.5 Flanges. 22 Jacketed Gasket Dimensions for ASME B16.47 Series A Flanges.. 23 Jacketed Gasket Dimensions for ASME B16.47 Series B Flanges.. 24 Abbreviations for Identifying Materials for Jacketed Gaskets. 25 Example Markings for Jacketed Gaskets V vii ix IO xi

12 STD-ASME BLb-2üA-ENGL 2000 S 0757b70 ObL7böL 3Tq I Mandatory Annex I References 35 Nonmandatory Annex A Quality System Program.. 37 xii

13 STDOASME BIb.20A-ENGL 2000 I 0757b70 ObL7b I ASME B16.20a-2000 METALLIC GASKETS FOR PIPE FLANGES Ring-Joint, Spiral-Wound, and Jacketed 1 SCOPE 1.1 General This Standard covers materials, dimensions, tolerances, and markings for metal ring-joint gaskets, spiralwound metal gaskets, metal-jacketed gaskets, and filler material. These gaskets are dimensionally suitable for use with flanges described in reference flange standards ASME B16.5, ASME , and API Specification 6A. This Standard covers spiral-wound metal gaskets and metal-jacketed gaskets for use with raised-face and flat-face flanges. 1.2 Quality Systems Requirements relating to the product manufacturers' quality system programs are described in Annex A. 1.3 References Standards and specifications adopted by reference in this Standard are shown in Annex I, which is part of this Standard. 2 RING-JOINT GASKETS 2.1 Types Ring-joint gaskets shall be either octagonal or oval in cross section. 2.2 Size Ring-joint gaskets shall be identified by an R, RX, or BX number that relates to flange size (NPS), pressure class, and the appropriate flange standards (ASME B16.5, ASME B16.47, or API Specification 6A). 2.3 Materials General. Ring-joint gasket materials, some of which are listed in Table 1, shall be selected by the user based on suitability for the service conditions. TABLE 1 MAXIMUM HARDNESS FOR RING GASKETS ~ ~~ Maximum Hardness Ring Gasket Material Brinell Rockwell "6" Scale Soft iron (1) Low-carbon steel chrome '/2M~ Type Type Type Type NOTE: (1) May be low-carbon steel, not to exceed maximum hardness of 90 Brinell-56 Rockwell "B." It is recommended that ring-joint gaskets be of a lesser hardness than that of the mating flanges Hardness. Ring-joint gaskets of materials listed in Table I shall have a hardness equal to or less than that shown in Table I. 2.4 Marking The outer surface of each gasket shall carry the manufacturer's name or identification trademark and gasket number prefixed by the letters R, RX, or BX followed by the gasket material identification. Materials shall be identified as shown in Table 2. The gasket shall also be marked with an ASME B designation. The marking shall be applied so as not to harmfully distort the gasket or affect the integrity of the seal. 2.5 Dimensions and Tolerances Dimensions and tolerances for ring-joint gaskets shall be as shown in Tables 3 through Surface Finish Types R and RX gaskets shall have a finish not rougher than 63 pin. roughness. Type BX gaskets shall have a finish not rougher than 32 pin. roughness. Surface finishes shall pertain to the gasket-sealing surfaces. I

14 STD-ASME BLb-ZOA-ENGL 2000 I 0757b70 ObII7b81 II77 ASME B16.20a-2000 TABLE 2 RING GASKET MARKINGS Ring Gasket Material Identification Marking Example (1) Soft iron 12) D R51D Low-carbon steel S R51S 4-6 chrome '/,Mo F5 (3) R51F5 Type 410 S 410 R51S410 Type 304 S 304 R51 S304 Type 316 S 316 R51S316 Type 347 s 347 R51S347 NOTES: (1) This number shall he preceded by the manufacturer's name or identification trademark. (2) May be low-carbon steel, not to exceed maximum hardness of 90 Brinell-56 Rockwell "B." (3) F5 identification designates ASTM Specification A chemical composition requirements only. 2.7 Identification Number Dimensional reference identification riunibers are assigned to ring-joint gaskets and are shown in Tables 3 through 8. 3 SPIRAL-WOUND GASKETS 3.1 Size and Class Spiral-wound gaskets, including centering ring and inner ring (paras and 3.25). are identified by flange size (NPS), pressure class. and the appropriate flange standard (ASME?3165 or ASME B16.47). 3.2 Dimensions and Tolerances General. Dimensions and tolerances for spiral-wound gaskets, centering rings, arid inner rings shall be in accordance with Tables 9 thr-ough I I and as specitied in this section Construction. Spiral-wound gaskets shall be constructed as alternate plies (circular layers counted as revolutions) of preformed metal windings and plaint fillers that are spirally wound. For the finished gasket, the tiller shall be essentially flush with. but not below, the metal winding on both contact faces of the gasket. The metal strip in the winding shall be in. to in. thick. The filler matei-ia1 thickness shall be determined by the manufacturer Metal Joining. The inner windings shall have a minimum of three plies of preformed metal strip without filler. The initial two plies shall be spotwelded circumferentially with a minimum of three welds spaced at a maxiinuni distance of 3 in. The METALLIC GASKETS FOR PIPE FLANGES outer windings. which shall have a minimum of three plies of preformed metal without filler, shall bc spotwelded circumferentially with a minimum of three welds, the last of which shall be the terminal weid. The distarice of the first weld from the terminal weld shall be no greater than 1.5 in. Up to four additional loose preformed metal windings beyond the terminal weld may be used to retain the gasket into the centering ring Centering Ring. All spiral-wound gaskets shall be furnished assembled into a centering ring. The centering ring thickness chal1 be from in. to in. and suitably grooved on the inside diameter so as to retain thc gasket Inner Ring. Inner rings shall be furniched (a) with all spiral-wound gaskets having PTFE (polytetrafluoroethylcne) filler material. It is recommended that inner rings be specified by the user for flexible graphite and other filler materials (if appropriate for flanges and bore sizes used), particularly wjhere experience has demonstrated inward buckling of the gaskets to be a problem. Inner rings shall be furnished in spiral-wound gaskets for flanges NPS 24 and larger in Class 900, NPS 12 and larger in Class 1500, and NPS 4 and larger in Class Gaskets with inner rings should be used only with socket welding, lapped, welding neck, and integral flanges. Thc inner-ring thickness shall be from in. to in. Tables 12 through 14 show inner-ring inside diameters that may extend a maximum of in. into the flange bore tinder the worst combination of flange bore. eccentric installation, and tolerance. Reference Table IS for minimum pipe wall thickness for use with gaskets with inner rings. Reference Tables 16, 17, and 18 for maximum allowable bore for use with gaskets without inner rings Gasket Compression. Spiral-wound gaskets NPS vl, NPS '/', and NPS 1 in Classes , and 600 shall be designed so that a uniform bolt stress of 25,000 psi, based on thc nominal bolt root diameter, will compress the gasket to a thickness of in in. All other gasket sizes and classes shall be designed so that a uniform bolt stress of psi will compress the gasket to a thickness of in. *0.005 in. 3.3 Materials Metal windings and filler niaterials shall be in accordance with Table 19. The inner ring shall be of a material,

15 STD*ASME BLb-20A-ENGL 2000 D 0757b70 ObL7bBll 003 METALLIC GASKETS FOR PIPE FLANGES ASME B16.20a-2000 that has corrosion resistant characteristics equivalent to or better than that of the metal winding. The centering ring may be carbon steel that is painted, metal plated, or otherwise coated to inhibit atmospheric corrosion. 2. I

16 ASME BI METALLIC GASKETS FOR PIPE FLANGES 23 deg n Octagonal Oval TABLE 3 TYPE R RING GASKET DIMENSIONS AND TOLERANCES Height of Ring Width of Flat on Radius in Ring Pitch Diameter Width of Oval, Octagonal, Octagonal Ring, Octagonal Number of Ring, P Ring, A B H C Ring, Ri R-I R R R R R R R R R R R R R R R R R R R R R R R R (continued) 4

17 ~ ~ ~ ~~ METALLIC GASKETS FOR PIPE FLANGES ASME TABLE 3 TYPE R RING GASKET DIMENSIONS AND TOLERANCES (CONT'D) Height of Average Ring Width of Flat on Radius in Ring Pitch Diameter Width of Oval, Octagonal, Octagonal Ring, Octagonal Number of Ring, P Ring, A B H c Ring, RI R-36 R-37 R-38 R-39 R R-41 U-42 u-43 u-44 u o R-46 R-47 R-48 R-49 R o R-51 A-52 u-53 R-54 R o O R-56 R-57 R-58 R-59 R R-61 R-62 R-63 R-64 R o R-66 R-67 R-68 R-69 R o R-7 1 R-72 R-73 u-74 R o o U-76 R-77 R-78 R-79 R o (continued) 5

18 ASME METALLIC GASKETS FOR PIPE FLANGES TABLE 3 TYPE R RING GASKET DIMENSIONS AND TOLERANCES (CONT'D) Average Height of Ring Width of Flat on Radius in Ring Pitch Diameter Width of Oval, Octagonal, Octagonal Ring, Octagonal Number of Ring, P Ring, A B H C Ring, RI R R R R R R R R R O R R R R R R O R O R O R R R * R R R R GENERAL NOTE: All dimensions are in inches. TOLERANCES: P = average pitch diameter of ring, k0.007 A = width of ring, B, H = height of ring, +0.05, Variation in height throughout the entire circumference of any given ring shall not exceed 0.02 within these tolerances. C = width of flat on octagonal ring, RI. = radius in ring, deg = angle, 15; deg

19 STD=ASME BLb-ZO-ENGL 1998 = 0759b70 ObLb94b 055 METALLIC GASKETS FOR PIPE FLANGES ASME ~ a TABLE 4 PIPE SIZES FOR TYPE R RING GASKETS SUITABLE FOR REFERENCED STANDARDS Pressure Classes ASME API 68 ASME Series A Ring Number (1) OOO R-11 R-12 R-13 R-14 R-15 R-16 R-17 R-18 R-19 R-20 R-21 R-22 R-23 R-24 R-25 R-26 R-27 R-28 R-29 R-30 (2) R-31 R-32 R-33 R-34 R-35 R-36 R-37 R-38 R-39 R-40 R-41 R-42 R-43 R-44 R-45 R-46 R R-49 R-50 R-51 R-52 R-53 R '/4 1 1/2 2 2 '/ ' '/4 1 '/2 2 2Y '/ i; '/4 1 '/z 2 2% a..< '/4 1 Y2 2 21/ <..* 10 5; '/ % 1 '/2,.. 2 *.. 2' a 1 1 '/4 1 5; 2.., 2 '/z '/ Y '/4 1 '/2 2 21/ /4 1 5; '4 4..< ,..I..<..<. I. <.. (continued) 7

20 STD-ASME BLb*E!U-ENGL 1996 = 075îb70 ObLbîii7 TîL AS ME BI METALLIC GASKETS FOR PIPE FLANGES TABLE 4 PIPE SIZES FOR TYPE R RING GASKETS SUITABLE FOR REFERENCED STANDARDS (CONT'D) Pressure Classes ASME B16.5 API 6B ASME Series A Ring ' Number (1) (1) R-55 R-56 R-57 R-58 R-59 R-60 R-61 R-62 R-63 R-64 R-65 U-66 R-67 R-68 R-69 R-70 R-71 R-72 u-73 R-74 R-75 R-76 R-77 R-78 R-79 R-80 R-81 R-82 R-a4 U-85 R-86 R-a7 R-88 R-a9 R-90 R-91 R-92 R-93 R-94 R _ ia ia ia ia * Y2 2 2'/ v a (continued) 8

21 METALLIC GASKETS FOR PIPE FLANGES ASME TABLE 4 PIPE SIZES FOR TYPE R RING GASKETS SUITABLE FOR REFERENCED STANDARDS (CONT'D) Pressure Classes Ring ASME B16.5 API 6B ASME Series A Number '1) III R-96..* 32 R R R R R-101.._ 28 R R-103 < <. 32 R-104 <. < 34 R GENERAL NOTE: End flanges to API 6D and API 600 use gaskets for equivalent pipe size under ASME B16.5 or ASME B16.47 series A. NOTES: (1) Class 720, 960, and flanges to API 6B are obsolete. Data are for information only. (2) R-30 is for lapped joint only. 9

22 ACME B METALLIC GASKETS FOR PIPE FLANGES 23 deg n TABLE 5 TYPE RX RING GASKET DIMENSIONS AND TOLERANCES Outside Diameter Width Width Height of Height Radius Hole Ring of Ring, of Ring, of Flat, Outside Bevel, of Ring, of Ring, Size, Number OD A C D H Ri E (1) RX O RX O o00 RX o00 RX RX o00 RX O o00 RX O o00 RX o00 RX O o00 RX O o00 RX o00 RX O RX O o00 RX RX RX-49 1.O O o00 I.. RX <.. RX O o00 RX RX O o00 RX O RX O o00 RX RX O o00 RX (continued) 10

23 ~ STD-ASME BLb.20-ENGL b70 ObLb750 58b METALLIC GASKETS FOR PIPE FLANGES ASME TABLE 5 TYPE RX RING GASKET DIMENSIONS AND TOLERANCES (CONT'D) Outside Diameter Width Width Height of Height Radius Hole Ring of Ring, of Ring, of Flat, Outside Bevel, of Ring, of Ring, Size, Number OD A C D H Ri E (11 RX-73 RX RX-82 ~x-84 RX o00 1.o00 1.O00 RX-86 RX-87 RX-88 RX-89 RX RX-91 RX-99 RX-201 RX-205 RX-210 RX O (2) (2) (2) o O (3) 0.02 (3) 0.03 (3) (3) GENERAL NOTE All dimensions are in inches. NOTES: (1) Rings RX-82 through RX-91 only require one pressure passage hole as illustrated. The center line of the hole shall be located at the midpoint of dimension C. (2) Tolerance on these dimensions is +O, (3) Tolerance on these dimensions is +O.OZ, -0. TOLERANCES: OD = outside diameter of ring, +O.OZO. -0 A = width of ring, , -0 Variation in width throughout the entire circumference of any ring shall not exceed within these tolerances. C = width of flat, , -0 D = height of outside bevel, +O, H = height of ring, , -0 Variation in height throughout the entire circumference of any ring shall not exceed within these tolerances. RI = radius of ring, dag = angle, A?; deg E = hole size, +_0.02 I I

24 ASME METALLIC GASKETS FOR PIPE FLANGES TABLE 6 PIPE SIZES FOR TYPE RX RING GASKETS SUITABLE FOR REFERENCED STANDARDS Pressure Classes API 68 Ring Number 2000 ( Il) RX-20 RX-23 RX-24 RX-25 RX-26 RX-27 RX-31 RX-35 RX-37 RX-39 1 '/z '/2 1 '/ '/ RX-41 5 RX-44 RX-45 6 RX-46 RX-47 8 (2) RX RX-50 8 RX RX RX RX RX RX RX RX RX RX RX-82 1 RX-84 15; RX-85 2 RX-86 2% RX-87 3 RX-88 4 RX-89 3'/2 RX-90 5 RX RX-99 8 (2) 8 (2) RX "/8 RX Y16 RX-210 2% 6 RX %5 NOTES: (1) Class 720, 960, and 2900 flanges to API 66 are obsolete. Data are for information only. (2) Crossover flange,connection. 12

25 METALLIC GASKETS FOR PIPE FLANGES ASME TABLE 7 TYPE BX RING GASKET DIMENSIONS AND TOLERANCES Outside Diameter Height Width Outside Diameter Width Hole Ring Nominal of Ring, of Ring, of Ring, of Flat, of Flat, Size, Number Size, in. OD H A ODT c D (1) BX BX-151 BX-152 BX-153 BX BX-155 BX-156 BX BX-158 BX BX-160 EX-161 BX BX-163 BX O BX-165 BX-166 BX-167 EX-168 BX O BX-170 BX-171 BX-172 BX GENERAL NOTES: (a) All dimensions are in inches. (b) Radius R shall be 8% to 12% of the gasket height H. (continued) 13

26 ASME METALLIC GASKETS FOR PIPE FLANGES NOTES TO TABLE 7 (CONT'D) NOTE: (1) One pressure passage hole is required per gasket as illustrated. The center line of the hole shall be located at the midpoint of dimension C. TOLERANCES: OD = (outside diameter of ring) +O, H = (height of ring) , -0 Variation in height throughout the entire circumference of any ring shall not exceed within these tolerances. A = (width of ring) , -0 Variation in width throughout the entire circumference of any ring shall not exceed within these tolerances. ODT = (outside diameter of flat) k0.002 C = (width of flat) , -0 D = (hole size) R = (radius of ring) see General Note (b) 23 deg = (angle) +y4 deg TABLE 8 PIPE SIZES FOR TYPE BX RING GASKETS SUITABLE FOR REFERENCED STANDARDS Pressure Classes Ring API 6BX Number BX-150 l'yl6 BX /16 1 'Yl BX ' s 2%6 BX /16 29/ BX ' BX '11 6 4'116 41/16 BX ' ' BX BX-158 * < BX ' BX BX BX ' BX BX % 1874 BX-165 BX-166 BX BX- 168 BX BX-170 BX-171 BX-172 BX '14 26' % 21 ' ' '132 14

27 METALLIC GASKETS FOR PIPE FLANGES ASME B

28 STD*ASME BLb-ZU-ENGL b70 ObLb955 ObA ASME METALLIC GASKETS FOR PIPE FLANGES w o z a A LL 2 r P ä I rnornmw?o.". O r r r r r n 0 r n W ~ o w.. :Or? ' w w Lo- :. :. :?? 'brn omrnow "??Or? o~lnwm t-rccc m m m c "??U rnwmu NNNF mwou r?"" -mmc NNNC P z uì 4- Y o u) m 0 O 5: N u) u) 9 - u 7 m $- m n z.c m Cu m n z vi c W Y u) m O 5: c u) m ti +- N m n Z uì c al Y u) m O O m u) v) - m u L O 'c U m u) al m C m G O rn cy u) v) m o L O rn - O O - m o u) u) al 3 - s N m n z 2= m 3 L 5 AN m n z.- C u) al m c m = O m 2 m o - O W - m o u) u) - u) al 3 rnrnoom?.oot Nmbrnw b) w 4 I- ooom O""? 4ON" 16

29 STDmASME BLb-20-ENGL b70 UbLb95b TT4 METALLIC GASKETS FOR PIPE FLANGES ASME B

30 ASME METALLIC GASKETS FOR PIPE FLANGES c r o II) 8

31 METALLIC GASKETS FOR PIPE FLANGES ASME

32 STD=ASflE BLb-20-ENGL 1998 W 0759b70 ObLb ASME METALLIC GASKETS FOR PIPE FLANGES 20

33 ~ STD-ASME BLb-20A-ENGL METALLIC GASKETS FOR PIPE FLANGES ASME B16.20a-2000 TABLE 12 INNER-RING INSIDE DIAMETERS FOR SPIRAL-WOUND GASKETS Flange Size Pressure Class (NPS) ûO (1) (1.2) , 3) 2500 (1-3) ia) 1 1 '/4 1 '/z 0.56 o.ai 1.O o.ai 1.O o.ai 1.O o.ai 1.O o.ai 1.O '/ a ia GENERAL NOTES: (a) The inner-ring thickness shall be in. to in. (b) For sizes NPS 1'/4 through NPS 3, the inside diameter tolerance is in.; for larger sizes the inside diameter tolerance is k in. See Table 15 for minimum pipe wall thicknesses that are suitable for use with standard inner rings. NOTES: (1) There are no (a) NPS through NPS 3 Class 400 flanges; therefore, use Class 600 flanges (b) NPS v2 through NPS 21/2 Class 900 flanges; therefore, use Class 1500 flanges (c) NPS 14 and larger Class 2500 flanges (2) Inner rings are required for Class 900, NPS 24 gaskets; Class 1500, NPS 12 through NPS 24 gaskets; and Class 2500, NPS 4 through NPS 12 gaskets. (3) Refer to para for required use of inner rings. 21

34 STD-ASME BLb.2OA-ENGL b70 ObL7bAb 78b ASME B16.20a-2000 METALLIC GASKETS FOR PIPE FLANGES TABLE 13 INNER-RING INSIDE DIAMETERS FOR SPIRAL-WOUND GASKETS USED BETWEEN ASME B16.47 SERIES A FLANGES Flange Size Pressure Class WS) (1. 2) GENERAL NOTES: (ai The inner-ring thickness shall be in. to in. (b) The inside diameter tolerance is in. (c) These inner rings are suitable for use with pipe walls 0.38 in. or thicker. NOTES: (1) Inner rings are required for Class 900 gaskets. (2) There are no Class 900 flanges NPS 50 and larger. 22

35 STD.ASME BLb.20A-ENGL 2000 m 075îb70 ObL7bä METALLIC GASKETS FOR PIPE FLANGES ACME B16.20a-2000 Flange Size TABLE 14 INNER-RING INSIDE DIAMETERS FOR SPIRAL-WOUND GASKETS USED BETWEEN ASME SERIES B FLANGES Pressure Class INPSI Il. 2) ia GENERAL NOTES: (a) The inner-ring thickness shall be in. to in. (b) The inside diameter tolerance is ~0.12 in. (c) These inner rings are suitable for use with pipe walls in. or thicker. NOTES: (1) Inner rings are required for Class 900 gaskets. Refer to para for required use of inner rings. (2) There are no NPS 50 and larger Class 900 flanges. 23

36 STD-ASME BLb-ZOA-ENGL 2000 E D757b70 ObL7b m ASME BI 6.20a-2000 METALLIC GASKETS FOR PIPE FLANGES (a) TABLE 15 MINIMUM PIPE WALL THICKNESS SUITABLE FOR USE OF SPIRAL-WOUND GASKETS WITH INNER RINGS FOR ASME B16.5 FLANGES Flange Pressure Class Size W"J % 1 '/ Schedule 80 Schedule 40 1 Schedule Schedule 10s Schedule 30 Schedule 80 1 GENERAL NOTES: (a) The pipe wall schedules identified represent the minimum recommended pipe wall thickness suitable for use with inner rings for ASME B16.5 flanges. (Reference ASME B36.10M and B36.19M.1 (bì Gaskets with inner rings should be used only with socket welding, lapped, welding neck, and integral flanges. 24

37 METALLIC GASKETS FOR PIPE FLANGES ASME B u) W m C m = O z u) (I u, e 3 u) n e n u) o? m O z 25

38 STDOASME BAb-20-ENGL A998 = 0759b70 ObAbYb5 TO7 ASME METALLIC GASKETS FOR PIPE FLANGES TABLE 17 MAXIMUM BORE OF ASME SERIES A FLANGES FOR USE WITH SPIRAL-WOUND GASKETS Flange Pressure Class Size W") (1) GENERAL NOTE: This table shows the maximum bore of flanges for which the spiral-wound gasket dimensions shown in Table 10 are recommended, considering the tolerances involved, the possibility of eccentric installation, and the possibility that the gasket may extend into the assembled flange bore. NOTES: (1) Inner rings are required for Class 900 gaskets, NPS 26 through NPS 48 (see para ). (2) Applies only to welding neck flanges with a bore not larger than the inside diameter of a in. wall pipe. Larger bores must be checked individually. (3) Applies only to welding neck flanges with a bore not larger than the inside diameter of a 0.25-in. wall pipe, except that NPS 38, Class 300, is not suitable for a bore larger than the inside diameter of a 0.30-in. wall pipe. Larger bores must be checked individually. (4) There are no Class 900 flanges in NPS 50 through

39 STDeASME BLb-ZOA-ENGL 2000 M 0759b70 Ob27689 b95 METALLIC GASKETS FOR PIPE FLANGES ASME B16.20a-2000 TABLE 18 MAXIMUM BORE OF ASME B16.47 SERIES B FLANGES FOR USE WITH SPIRAL-WOUND GASKETS Flange Size Pressure Class N") (1) Welding neck and integral flanges having maximum inside diameters as described in ASME GENERAL NOTE: This table shows the maximum bore of flanges for which the spiral-wound gasket dimensions shown in Table 11 are recommended, considering the tolerances involved, the possibility of eccentric installation, and the possibility that the gasket may extend into the assembled flange bore. NOTES: (1) Inner rings are required for Class 900 gaskets, NPS 26 through NPS 48 (see para ). (2) There are no Class 900 flanges NPS 50 and larger. 27

40 STD=ASME BLb.20A-ENGL 2000 B 075ïb70 ObL?bîO 307 = ASME B16.20a-2000 METALLIC GASKETS FOR PIPE FLANGES (a) TABLE 19 COLOR CODING AND ABBREVIATIONS FOR SPIRAL-WOUND GASKET MATERIALS Metallic Winding Materials Material Abbreviation Color Code Carbon steel 304 SS 304 L SS 309 SS 310 SS 316 L SS 317 L SS 347 ss 321 SC 430 SS Ni-Cu Monel 400 Grade 400 Nickel 200 Titanium 20Cb-3 alloy Ni-Mû Hastelloy B Grade 82 Ni-Mo-Cr Hastelloy C Grade C-276 N i-cr-fe Inconel 600 Grade 600 N i-cr-fe-c b Inconel 625 Grade 625 N i-c r-fe-ti Inconel X-750 Grade X-750 Ni-Fe-Cr Incoloy 800 Grade 800 Ni-Fe-Cr-Mo-Cu Incoloy 825 Grade 825 Zirconium CRS L L 317 L MON NI TI A-20 HAST B HAST C INC 600 INC 625 INX IN 800 IN 825 ZIRC Silver Yellow No color No color No color Green Maroon Blue Turquoise No color Orange Red Purple Black Brown Beige Gold Gold No color White White No color (continued

41 ~~ METALLIC GASKETS FOR PIPE FLANGES ASME TABLE 19 COLOR CODING AND ABBREVIATIONS FOR SPIRAL-WOUND GASKET MATERIALS (CONT D) Nonmetallic Filler Materials Material Abbreviation Color Code Chrysotile asbestos AS6 No stripe Polytetrafluoroethylene PTFE White stripe Mica-graphite Mfr. s designation Pink stripe Flexible-graphite F.G. Gray stripe Ceramic CER Light green stripe TABLE 20 EXAMPLE MARKINGS FOR SPIRAL-WOUND GASKETS Description NPS 3, Class 300 and 600 ASME gasket having a Type 304 metal winding and a flexible graphite filler material Marking 3-300/60O-F. G. (Manufacturer s trademark) ASME NPS 36, Class 300 ACME Series A gasket having a Type 304 metal winding and a ceramic filler material NPS 12, Class 1500 ASME gasket having an inconel metal winding, PTFE filler material, and an inconel inner ring CER ASME A (Manufacturer s trademark) ASME INC 600-PTFE INC 600 I.R. (Manufacturer s trademark) ASME B

42 ASME B Q METALLIC GASKETS FOR PIPE FLANGES 4 Clearance in. Bolt-hole _I diameter I L Gasket inside diameter Gasket outside diameter TABLE 21 JACKETED GASKET DIMENSIONS FOR ASME B16.5 FLANGES Flange Gasket Gasket Outside Diameter by Class (i1 Size Inside WPS) Diameter (1) (2) ( (4) ' I 51, ; GENERAL NOTE: The gasket-thickness tolerance is in., in. NOTES: (1) For gaskets NPS '/2 through NPS 24, the outside and inside diameter tolerances are + in., in. (2) There are no Class 400 flanges NPS v2 through NPS 3 (use Class 600). (3) There are no Class 900 flanges NPS through NPS 21/2 (use Class 1500). (4) There are no Class 2500 flanges NPS 14 and larger. 30

43 ~~ ~~ ~~ ~~~ METALLIC GASKETS FOR PIPE FLANGES ASME in. thick Gasket inside diameter 4 Bolt-hole diameter b- Gasket outside diameter TABLE 22 JACKETED GASKET DIMENSIONS FOR ASME SERIES A FLANGES Flange Gasket Size Inside Gasket Outside Diameter by Class (1 i ínpsi Diameter (li (2) GENERAL NOTE: The gasket-thickness tolerance is in., in. NOTES: (1) For gaskets NPS 26 through NPS 60, the outside diameter and inside diameter tolerances are in., in. (2) There are no Class 900 flanges NPS 50 and larger... 31

44 ASME B Q METALLIC GASKETS FOR PIPE FLANGES 1 Clearance in. L Gasket inside diameter 4 Boit-hole diameter k- Gasket outside diameter TABLE 23 JACKETED GASKET DIMENSIONS FOR ASME B16.47 SERIES B FLANGES Flange Gasket Size Gasket Outside Diameter by Class (1) Inside (NPS) Diameter (1) (2) O GENERAL NOTE: The gasket-thickness tolerance is in., in. NOTES: (1) For gaskets NPS 26 through NPS 60, the outside diameter and inside diameter tolerances are in., in. (2) There are no Class 900 flanges NPS 50 and larger. 32

45 METALLIC GASKETS FOR PIPE FLANGES AS ME B TABLE 24 ABBREVIATIONS FOR IDENTIFYING MATERIALS FOR JACKETED GASKETS Material AI CRS Cu Ni-Mo (grade 82) Ni-Mo-Cr (grade C-276) Ni-Cr-Fe (grade 600) Ni-Cr-Fe-Cb (grade 625) Ni-Fe-Cr (grade 800) Ni-Cr-Fe-Ti (grade X-750) Ni-Cu (grade 400) Nickel 200 Soft iron Ni-Cr Ta Ti Metals Abbreviation Aluminum AL Carbon steel cs Copper CU Hastelloy 6 HAST B Hastelloy C HAST C Inconel 600 INC 600 Inconel 625 INC 625 Incoloy 800 IN 800 Inconel X-750 INX Monel MON Nickel NI Soft iron Soft iron Stainless steels 3-digit Tantalum TANT Titanium TI Fillers Asbestos ASB Ceramic CER Flexible graphite F.G. Polytetrafluoroethylene PTFE TABLE 25 EXAMPLE MARKINGS FOR JACKETED GASKETS Description NPS 2'/2, Class 150 ASME gasket having a Type 304 metal jacket and a flexible graphite filler material Marking 2'/2-15&304/F.G. (Manufacturer's trademark) ASME NPS 30, Class 300 ASME Series 8 gasket having a CSKER carbon-steel jacket and a ceramic filler material ASME (Manufacturer's trademark) ASME

46 STD-ASME BLb=ZOA-ENGL 2000 II 0759b70 ObL7b7L 243 ASME B16.20a-2000 MANDATORY ANNEX I REFERENCES ia) The following is a list of publications referenced in this Standard. API Specification 6A - 17th Edition , Specification for Valves and Wellhead Equipment Publisher: American Petroleum Institute (API), I220 L Street, NW, Washington, DC ASME B , Pipe Flanges and Flanged Fittings' ASME B , Large Diameter Steel Flanges: NPS 26 through NPS 60' ASME B36.10M- 1996, Welded and Seamless Wrought Steel Pipe' ASME B36.19M-1985 (R1994), Stainless Steel Pipe' Publisher: American Society of Mechanical Engineers (ASME), Three Park Ave., New York, NY 10016; Order Department: 22 Law Drive, Box 2300, Fairfield, NJ ' May also be obtained from the American National Standards Institute (ANSI), I I West 42nd Street, New York, NY IS : 1994, Quality management and quality assurance standards - Part 1 : Guidelines for selection and use IS : 1997, Quality management and quality assurance standards - Part 2: Generic guidelines for the application of IS0 9001, IS0 9002, and IS IS : 1997, Quality management and quality assurance standards - Part 3: Guidelines for the application of IS0 900 I to the development, supply, installation, and maintenance of computer software IS0 9001: 1994, Quality systems - Model for quality assurance in design, development, production, installation, and servicing IS0 9002: 1994, Quality systems - Model for quality assurance in production, installation, and servicing IS0 9003: 1994, Quality systems - Model for quality assurance in final inspection and test Publisher: International Organization for Standardization (ISO), 1 me de Varembé, Case postale 56, CH Genève 20, SwitzerlandSuisse 35

47 ASME NONMANDATORY ANNEX A QUALITY SYSTEM PROGRAM The products manufactured in accordance with this Standard shall be produced under a quality system program following the principles of an appropriate standard from the IS series. A determination of the need for registration and/or certification of the product manufacturer s quality system program by an independent organization shall be the responsibility of the manufacturer. Detailed documentation demonstrating program compliance shall be available to the purchaser at the manufacturer s facility. A written, summarized description of the program used by the product manufacturer shall be available to the purchaser upon request. The product manufacturer is defined as the entity whose name or trademark appears on the product in accordance with the marking or identification requirements of this Standard. The series is also available from the American National Standards Institute (ANSI) and the American Society for Quality (ASQ) as American National Standards that are identified by a prefix Q replacing the prefix ISO. Each standard of the series is listed in Annex I. 37 Previous page is blank

48 STDOASME BLb-ZOA-ENGL ZU b70 ObLïb92 LöT m AMERICAN NATIONAL STANDARDS FOR PIPING. PIPE FLANGES. FITTINGS. AND VALVES Scheme for the Identification of Piping Systems...A Pipe Threads. General Purpose (Inch). B (R1992) Dryseal PipeThreads (Inch). B (R1998) Cast Iron Pipe Flanges and Flanged Fittings: Classes and 250., Malleable Iron Threaded Fittings: Classes 150 and 300.B Gray Iron Threaded Fittings: Classes 125 and 250..B Pipe Flanges and Flanged Fittings (NPS Through NPS 24).B Factory-Made Wrought Steel Buttwelding Fittings..B Face-to-Face and End-to-End Dimensions of Valves..B Forged Fittings. Socket-Welding and Threaded.B Cast Iron Threaded Drainage Fittings Ferrous Pipe Plugs. Bushings. and Locknuts with Pipe Threads.B Cast Bronze Threaded Fittings: Classes 125 and 250. B (R1994) B (R1994) Cast Copper Alloy Solder Joint Pressure Fittings. Metallic Gaskets for Pipe Flanges: Ring.Joint. Spiral-Wound. and Jacketed...B Nonmetallic Flat Gaskets for Pipe Flanges..B Wrought Copper and Copper Alloy Solder Joint Pressure Fittings..B Cast Copper Alloy Solder Joint Drainage Fittings - D W.., Cast Copper Alloy Pipe Flanges and Flanged Fittings: Classes and B (R1998) Buttwelding Ends B Cast Copper Alloy Fittings for Flared Copper Tubes..B Wrought Steel Buttwelding Short Radius Elbows and Returns..B Wrought Copper and Wrought Copper Alloy Solder Joint Drainage Fittings - D W...B Manually Operated Metallic Gas Valves for Use in Gas Piping Systems up to 125 psig (Sizes Through 2)..B Valves - Flanged. Threaded. and Welding End...B Orifice Flanges Large Metallic Valves for Gas Distribution (Manually Operated. NPS 2 /* to psig Maximum) B iR1994) Malleable Iron Threaded Pipe Unions.., Manually Operated Thermoplastic Gas Shutoffs and Valves in Gas Distribution Systems. B (R1994) Ductile Iron Pipe Flanges and Flanged Fittings. Classes 150 and 300..B Manually Operated Metallic Gas Valves for Use in House Piping Systems...B Cast Iron Fittings for Soventa Drainage Systems..B Large Diameter Steel Flanges (NPS 26 Through NPS 60) Steel Line Blanks.. Factory-Made Wrought Steel Buttwelding Induction Bends for Transportation and Distribution Systems...B Power Piping Fuel Gas Piping (no ANSI standard)..b Process Piping Pipeline Transportation Systems for Liquid Hydrocarbons and Other Liquids..B Refrigeration Piping Gas Transmission and Distribution Piping Systems.B Building Services Piping Slurry Transportation Piping Systems B Manual for Determining the Remaining Strength of Corroded Pipelines.. Welded and Seamless Wrought Steel Pipe. Stainless Steel Pipe.... B36.19M-l985(R1994) Self-operated and Power-Operated Safety-Related Valves Functional Specification Standard.N îR1992) The ASME Publications Catalog shows a complete list of all the Standards published by the Society. For a complimentary catalog. or the latest information about our publications. call I-800-THE-ASME (

49 STDOASME BLb-ZDA-ENGL b70 ObL7b73 OLb ASME Services ASME is committed to developing and delivering technical information. At ASME s Information Central, we make every effort to answer your questions and expedite your orders. Our representatives are ready to assist you in the following areas: ASME Press Codes di Standards Credit Card Orders IMechE Publications Meetings & Conferences Member Dues Status Member Services & Bencfits Other ASME Programs Payment Inquiries Professional Development Short Courses Publications Public Information Self-study Courses Shipping Information Subscriptions/Jounials/Magazines Symposia Volumes Technical Papers How can you reach us? It s easier than ever! There are four options for making inquiries* or placing orders. Simply mail, phone, fax, or us and an Information Central representative will handle your request. Mail Call Toll Free Fax-24 hours -24 hours ASME US & Canada: 800-THE-ASME I7 I7 Infocentral 22 Law Drive, Box 2900 ( ) Fairfield, New Jersey Mexico: THE-ASME ( ) Universal: * Information Central staff are not permitted to answer inquiries about the technical content of this code or standard. Information as to whether or not technical inquiries are issued to this code or standard is shown on the copyright page. All technical inquiries must be submitted in writing to the staff secretary. Additional procedures for inquiries may be listed within.

50