1、AN AMERICAN NATIO NAL STANDARDCast Copper Alloy Fittings for Flared Copper TubesASME B16.26-2006(Revision of ASME/ANSI B16.26-1988)Copyrighted material licensed to Stanford University by Thomson Scientific(),downloaded on Oct-05-2010 by Stanford University User.No further reproduction or distributio
2、n is permitted.Uncontrolled when printed.ASME B16.26-2006(Revision of ASME/ANSI B16.26-1988)Cast CopperAlloy Fittings forFlared CopperTubesAN AMERICAN NATIONAL STANDARDThree Park Avenue New York,NY 10016Copyrighted material licensed to Stanford University by Thomson Scientific(),downloaded on Oct-05
3、-2010 by Stanford University User.No further reproduction or distribution is permitted.Uncontrolled when printed.Date of Issuance:September 29,2006The next edition of this Standard is scheduled for publication in 2010.There will be no addendaissued to this edition.ASME issues written replies to inqu
4、iries concerning interpretations of technical aspects of thisStandard.Interpretations are published on the ASME website under the Committee Pages at http:/www.asme.org/codes/as they are issued,and will also be published within this edition of thestandard.ASME is the registered trademark of The Ameri
5、can Society of Mechanical Engineers.This code or standard was developed under procedures accredited as meeting the criteria for American NationalStandards.The Standards Committee that approved the code or standard was balanced to assure that individuals fromcompetent and concerned interests have had
6、 an opportunity to participate.The proposed code or standard was madeavailable forpublic review andcomment thatprovides an opportunityfor additional publicinput from industry,academia,regulatory agencies,and the public-at-large.ASME does not“approve,”“rate,”or“endorse”any item,construction,proprieta
7、ry 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 does not undertake to insure anyone utilizing a standard against liability forinfringement of any applicable letters patent,nor
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9、y is not to be interpreted asgovernment or industry endorsement of this code or standard.ASME accepts responsibility for only those interpretations of this document issued in accordance with the establishedASME procedures and policies,which precludes the issuance of interpretations by individuals.No
10、 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 EngineersThree Park Avenue,New York,NY 10016-5990Copyright 2006 byTHE AMERICAN SOCIETY OF MECHANICAL ENGINEERSA
11、ll rights reservedPrinted in U.S.A.Copyrighted material licensed to Stanford University by Thomson Scientific(),downloaded on Oct-05-2010 by Stanford University User.No further reproduction or distribution is permitted.Uncontrolled when printed.CONTENTSForeword.ivCommittee Roster.vCorrespondence Wit
12、h the B16 Committee.vi1Scope.12Pressure Rating.13Size.14Marking.15Material.16Dimensions.17Threading.28Hydrostatic Test.2Tables1General Dimensions Cast Copper Alloy Fittings for Flared Copper Tubes.32Thread Specifications:External Threads on Fittings Class 2A.43Thread Specifications:Internal Threads
13、on Nuts Class 2B.4Mandatory AppendicesIU.S.Customary Units.5IIReferences.7Nonmandatory AppendicesAFlared Tube Dimensions.8BQuality System Program.9iiiCopyrighted material licensed to Stanford University by Thomson Scientific(),downloaded on Oct-05-2010 by Stanford University User.No further reproduc
14、tion or distribution is permitted.Uncontrolled when printed.FOREWORDThe development of a standard for brass fittings for flared copper water tubes was initiatedby a subcommittee of the Copper Tube and Fitting Manufacturers Standardization Committeein the year 1929.When a general agreement had been r
15、eached,the draft of the proposed standardwas submitted to Sectional Committee A40 on Minimum Requirements for Plumbing and Stan-dardizationofPlumbingEquipment,oftheAmericanStandardsAssociation.SectionalCommitteeA40 was jointly sponsored by the American Society of Sanitary Engineering and The America
16、nSociety of Mechanical Engineers.Final ASA approval and designation as an American Standard,ASA A40.2-1936,was grantedJanuary 20,1936.The Standard remained unchanged and without reaffirmation until 1955 when this activitywas transferred from Sectional Committee A40 to Sectional Committee B16 on Standardizationof Pipe Flanges and Fittings,under the sponsorship of The American Society of MechanicalEngineers,the Mechanical Contractors Association of America,Inc.,and the Manufacturers Stan-dardizati
