1、AN AMERICAN NATIO NAL STANDARDCast Copper Alloy Threaded FittingsClasses 125 and 250ASME B16.15-2006(Revision of ANSI/ASME B16.15-1985)Copyrighted material licensed to Stanford University by Thomson Scientific(),downloaded on Oct-05-2010 by Stanford University User.No further reproduction or distrib
2、ution is permitted.Uncontrolled when printed.ASME B16.15-2006(Revision of ANSI/ASME B16.15-1985)Cast CopperAlloy ThreadedFittingsClasses 125 and 250AN AMERICAN NATIONAL STANDARDThree Park Avenue New York,NY 10016Copyrighted material licensed to Stanford University by Thomson Scientific(),downloaded
3、on Oct-05-2010 by Stanford University User.No further reproduction or distribution is permitted.Uncontrolled when printed.Date of Issuance:May 7,2007The next edition of this Standard is scheduled for publication in 2010.There will be no addendaissued to this edition.ASME issues written replies to in
4、quiries concerning interpretations of technical aspects of thisStandard.Interpretations are published on the ASME website under the Committee Pages athttp:/cstools.asme.org as they are issued,and will also be published within the next edition of thestandard.ASME is the registered trademark of The Am
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7、etary 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,n
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10、.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 EngineersThree Park Avenue,New York,NY 10016-5990Copyright 2007 byTHE AMERICAN SOCIETY OF MECHANICAL ENGINEE
11、RSAll 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
12、With the B16 Committee.vi1Scope.12PressureTemperature Ratings.13Size.24Marking.25Material.26Threading.37Ribs.38Surface Finish.39Fitting Dimensions.310Tolerances.411Pressure Test.4Figure1Identification of Reducing Fittings.2Tables1PressureTemperature Ratings.22Dimensions of 90-deg Elbows,Tees,Crosses
13、,45-deg Elbows,and Couplings(Straight Sizes)Class 125.43Dimensions of Caps Class 125.54Dimensions of Outside Head,Inside Head,and Face Bushings Class 250.65Dimensions of 90-deg Elbows(Reducing Sizes)Class 125.76Dimensions of Tees(Reducing Sizes)Class 125.87Dimensions of 90-deg Elbows(Reducing Sizes)
14、Class 250.98Dimensions of Tees(Reducing Sizes)Class 250.109Dimensions of Square Head and Square Socket Plugs Class 250.1110Dimensions of Reducers,Closed and Open Pattern Return Bends,and 45-deg YBranches(Straight Sizes)Class 125.1211Dimensions of 90-deg and 45-deg Street Elbows Class 125.1312Dimensi
15、ons of 90-deg Elbows,Tees,Crosses,45-deg Elbows,and Couplings(Straight Sizes)Class 250.1413Inspection Tolerances,Center-to-End and Center-to-Center.14Mandatory AppendicesIDimensions of Fittings in U.S.Customary Units.15IIReferences.27Nonmandatory AppendixAQuality System Program.28iiiCopyrighted mate
16、rial 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.FOREWORDAs early as the spring of 1921,the consolidation and further development of threaded andflanged fittings standards in force in this country seemed desirable.To meet this need,theAmerican Standards Association(ASA)now the American National Standards Institute(ANSI)authorized the organization of a S
