1、AN AMERICAN NATIONAL STANDARDASME B16.11-2009(Revision of ASME B16.11-2005)Forged Fittings, Socket-Welding and ThreadedCopyright ASME International Provided by IHS under license with ASME Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-ASME B16.11-2009(Revision of
2、ASME B16.11-2005)Forged Fittings,Socket-Weldingand ThreadedAN AMERICAN NATIONAL STANDARDCopyright ASME International Provided by IHS under license with ASME Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-Date of Issuance: August 14, 2009The next edition of this St
3、andard is scheduled for publication in 2014. There will be no addendaissued to this edition.ASME issues written replies to inquiries concerning interpretations of technical aspects of thisStandard. Interpretations and items approved as errata to this edition are published on the ASMEWeb site under t
4、he Committee Pages at http:/cstools.asme.org as they are issued.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 NationalStandards. The Standards Committee that approv
5、ed the code or standard was balanced to assure that individuals fromcompetent and concerned interests have had an opportunity to participate. The proposed code or standard was madeavailable for public review and comment that provides an opportunity for additional public input from industry, academia
6、,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 anyitems mentioned in this document, and d
7、oes not undertake to insure anyone utilizing a standard against liability forinfringement of any applicable letters patent, nor assumes any such liability. Users of a code or standard are expresslyadvised that determination of the validity of any such patent rights, and the risk of infringement of s
8、uch rights, isentirely their own responsibility.Participation by federal agency representative(s) or person(s) affiliated with industry is not to be interpreted asgovernment or industry endorsement of this code or standard.ASME accepts responsibility for only those interpretations of this document i
9、ssued in accordance with the establishedASME 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 America
10、n Society of Mechanical EngineersThree Park Avenue, New York, NY 10016-5990Copyright 2009 byTHE AMERICAN SOCIETY OF MECHANICAL ENGINEERSAll rights reservedPrinted in U.S.A.Copyright ASME International Provided by IHS under license with ASME Not for ResaleNo reproduction or networking permitted witho
11、ut license from IHS-,-,-CONTENTSForeword ivCommittee Roster viCorrespondence With the B16 Committee . vii1 Scope and General 12 Pressure Ratings 13 Size and Type 74 Marking 85 Material 86 Dimensions . 87 Additional Tolerances . 98 Proof Testing . 9Figures1 Method of Designating Outlets of Reducing T
12、ees and Crosses . 82 Welding Gap and Minimum Flat Dimensions for Socket-Welding Fittings 9Tables1 Socket-Welding Fittings 22 Forged Threaded Fittings . 33 Forged Threaded Fittings Street Elbows 44 Threaded Fittings 55 Plugs and Bushings 66 Types of Fittings by Class Designation and NPS Size Range .
13、77 Correlation of Fittings Class With Schedule Number or Wall Designation ofPipe for Calculation of Ratings . 78 Nominal Wall Thickness of Schedule 160 and Double Extra Strong Pipe 7Mandatory AppendicesI Inch Tables . 11II References . 17Nonmandatory AppendixA Quality System Program . 18iiiCopyright
14、 ASME International Provided by IHS under license with ASME Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-FOREWORDThe Sectional Committee on the Standardization of Pipe Flanges and Fittings, B16, organizedin 1920 under the procedure of the American Standards Asso
15、ciation (ASA) appointed a subgroupof Subcommittee 3 (now Subcommittee F) to initiate the standardization of welding fittings inMay 1937. The first meeting of this group was held later that month, and at its meeting inDecember 1938, in New York, it was agreed to undertake the standardization of dimen
16、sions ofsocket-welding fittings and to refer this project to a new drafting subgroup. One of the mostimportant dimensions of this type of fitting requiring standardization was considered to be thedimension from the centerline of the fitting to the bottom of the socket, since from the standpointof th
17、e designing engineer, this dimension governs the location of adjacent pipe with referenceto the entire piping layout. Another important item for consideration was the welding filletdimensions.The drafting subgroup held meetings in Chicago, Detroit, and New York in March 1939 andMay and October 1940,
18、 respectively, and at the last named meeting, the completed draft of theproposed standard was discussed, and further revisions were suggested. When applied to theSeptember 1940 draft, these changes produced the May 1941 draft, which was prepared fordistribution to industry for criticism and comment.
19、This distribution resulted in a number of helpful comments. The members of the subgroupagreed by mail that many of the changes suggested should be incorporated in the revised draft(December 1941). Progress on the approval of the standard was delayed by the war, after which,a few more changes were ad
20、ded to make the proposal acceptable to all concerned. The reviseddraft (April 1946) was then submitted to the members of the sectional committee for letterballot vote.Following the approval of the sectional committee, the proposed standard was next approvedby the sponsor bodies and presented to the
21、ASA with recommendation for approval as anAmerican Standard. This designation was given on December 9, 1946.In 1960, it was agreed that the standard needed a complete revision and simultaneously thatit should be expanded to cover threaded fittings and plugs, then covered by MSS SP-49 andSP-50. A Tas
22、k Force worked diligently for 4 years before arriving at a draft that it felt wasacceptable. They also found that ratings were outdated and eliminated the 4,000-lb classes ofthreaded fittings, assigned pressuretemperature ratings for a number of materials, and convertedthe socket-weld fitting rating
23、s to 3,000 and 6,000 lb. Following approval by the Sectional Committeeand Sponsors, ASA approval was granted on January 28, 1966.Following designation changes of ASA to ANSI and Sectional Committee to StandardsCommittee, Subcommittee 6 began consideration of changes in 1969. Early in 1972, changes i
24、nthe pressure class designations, materials, and clarification of wording were agreed upon andsubmitted for approval. This approach was granted on June 20, 1973.The work of development of the 1980 edition of B16.11 began in 1975 when the committeebegan consideration of comments and proposals for cha
25、nge that were received. The developmentprocedure was arduous in that a number of ballots were taken that elicited many additionalcomments and counter proposals. The major changes included an expanded scope for betterdefinition, requirements for conformance marking, a Nonmandatory Annex with provisio
26、ns forproof or burst testing, and the inclusion of metric equivalents. Following approval by the StandardsCommittee and Co-Secretariat, final approval by ANSI was granted on October 6, 1980.In 1982, American National Standards Committee B16 was reorganized as an ASME Committeeoperating under procedu
27、res accredited by ANSI. The 1991 edition of the standard, retitled “ForgedFittings, Socket-Welding and Threaded,” incorporated forging material listed in Table 1 of ASMEB16.34-1988, including Group 3 material that was not previously covered in B16.11. The 1991edition established U.S. Customary units
28、 as the standard. Other clarifying and editorial revisionswere made in order to improve the text. Following approval by the Standards Committee andASME, final approval by ANSI was granted on March 4, 1991.ivCopyright ASME International Provided by IHS under license with ASME Not for ResaleNo reprodu
29、ction or networking permitted without license from IHS-,-,-In 1996, metric dimensions were added as an independent but equal standard to the inch units.Following approval by the Standards Committee and ASME, this revision to the 1991 edition ofthis Standard was approved as an American National Stand
30、ard by ANSI on December 16, 1996,with the new designation ASME B16.11-1996.In 2000, the Standards Committee, ASME, and ANSI approved an addenda to this Standardto remove partial compliance fittings and nonstandard material requirements. Due to an ASMEpolicy change concerning the publishing of addend
31、a, the intended addenda changes were incorpo-rated into the 2001 edition.Threaded end street elbow requirements were incorporated into the 2004 edition. Followingapproval by the Standards Committee and ASME, the revision to the 2001 edition was approvedas an American National Standard by ANSI on Sep
32、tember 30, 2005 with the designationASME B16.11-2005.A number of technical revisions were made along with format and reference revisions, suchas material marking requirements. Following approval by the Standards Committee and ASME,this revision to the 2005 edition was approved as an American Nationa
33、l Standard by ANSI onJuly 9, 2009 with the designation ASME B16.11-2009.Suggestions for improvement of this Standard are welcome. They should be addressed to theSecretary, ASME B16 Standards Committee, Three Park Avenue, New York, NY 10016.vCopyright ASME International Provided by IHS under license
34、with ASME Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-ASME B16 COMMITTEEStandardization of Valves,Flanges, Fittings, and Gaskets(The following is the roster of the Committee at the time of approval of this Standard.)STANDARDS COMMITTEE OFFICERSW. B. Bedesem, Ch
35、airM. L. Nayyar, Vice ChairU. DUrso, SecretarySTANDARDS COMMITTEE PERSONNELR. W. Barnes, ANRIC Enterprises, Inc.W. B. Bedesem, ExxonMobil Research and Engineering Co.D. F. Buccicone, Elkhart Products Corp.M. A. Clark, NIBCO, Inc.U. DUrso, The American Society of Mechanical EngineersC. E. Floren, Mue
36、ller Co.D. R. Frikken, Becht Engineering Co.M. L. Henderson, TIEC, Inc.G. A. Jolly, Vogt Valves/Flowserve Corp.SUBCOMMITTEEFSTEEL THREADED AND WELDING FITTINGSG. A. Cuccio, Chair, Capitol Manufacturing Co.G. A. Jolly, Vice Chair, Vogt Valves/FlowserveR. J. Horvath, Secretary, The American Society of
37、 MechanicalEngineersA. Appleton, Alloy Stainless Products Co., Inc.W. J. Birkholz, Markovitz Enterprises, Inc.K. W. Doughty, Shaw Alloy Piping Products, Inc.J. P. Ellenberger, ConsultantviM. Katcher, Haynes InternationalW. N. McLean, Newco ValvesT. A. McMahon, Fisher Controls International, Inc.M. L
38、. Nayyar, Bechtel Corp.J. D. Page, U.S. Nuclear Regulatory CommissionW. H. Patrick, The Dow Chemical Co.R. A. Schmidt, Hackney Ladish, Inc.H. R. Sonderegger, Anvil International, Inc.W. M. Stephan, Flexitallic, L.P.D. A. Williams, Southern Company GenerationD. R. Frikken, Becht Engineering Co.M. L.
39、Henderson, TIEC, Inc.C. J. Lafferty, Pennsylvania Machine Works, Inc.D. H. Monroe, ConsultantR. A. Schmidt, Hackney Ladish, Inc.H. R. Sonderegger, Anvil International, Inc.J. P. Tucker, Flowserve Corp.M. M. Zaidi, Jacobs Engineering Group, Inc.Copyright ASME International Provided by IHS under licen
40、se with ASME Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-CORRESPONDENCE WITH THE B16 COMMITTEEGeneral. ASME Standards are developed and maintained with the intent to represent theconsensus of concerned interests. As such, users of this Standard may interact wit
41、h the Committeeby requesting interpretations, proposing revisions, and attending Committee meetings. Corre-spondence should be addressed to:Secretary, B16 Standards CommitteeThe American Society of Mechanical EngineersThree Park AvenueNew York, NY 10016-5990As an alternative, inquiries may be submit
42、ted via e-mail to: SecretaryB16asme.org.Proposing Revisions. Revisions are made periodically to the Standard to incorporate changesthat appear necessary or desirable, as demonstrated by the experience gained from the applicationof the Standard. Approved revisions will be published periodically.The C
43、ommittee welcomes proposals for revisions to this Standard. Such proposals should beas specific as possible, citing the paragraph number(s), the proposed wording, and a detaileddescription of the reasons for the proposal, including any pertinent documentation.Interpretations. Upon request, the B16 C
44、ommittee will render an interpretation of any require-ment of the Standard. Interpretations can only be rendered in response to a written request sentto the Secretary of the B16 Standards Committee.The request for interpretation should be clear and unambiguous. It is further recommendedthat the inqu
45、irer submit his/her request in the following format:Subject: Cite the applicable paragraph number(s) and the topic of the inquiry.Edition: Cite the applicable edition of the Standard for which the interpretation isbeing requested.Question: Phrase the question as a request for an interpretation of a
46、specific requirementsuitable for general understanding and use, not as a request for an approvalof a proprietary design or situation. The inquirer may also include any plansor drawings that are necessary to explain the question; however, they shouldnot contain proprietary names or information.Reques
47、ts that are not in this format will be rewritten in this format by the Committee priorto being answered, which may inadvertently change the intent of the original request.ASME procedures provide for reconsideration of any interpretation when or if additionalinformation that might affect an interpret
48、ation is available. Further, persons aggrieved by aninterpretation 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 B16 Standards Committee reg
49、ularly holds meetings, whichare open to the public. Persons wishing to attend any meeting should contact the Secretary ofthe B16 Standards Committee.viiCopyright ASME International Provided by IHS under license with ASME Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-INTENTIONALLY LEFT BLANKviiiCopyright ASME Internation
