6-34_2009.pdf

AN AMERICAN NATIO NAL STANDARDASME B16.34-2009(Revision of ASME B16.34-2004)ValvesFlanged,Threaded,and Welding EndCopyright 2009 by the American Society of Mechanical Engineers.No reproduction may be made of this material without written consent of ASME.cCopyrighted 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.ASME B16.34-2009(Revision of ASME B16.34-2004)ValvesFlanged,Threaded,andWelding EndAN AMERICAN NATIONAL STANDARDCopyright 2009 by the American Society of Mechanical Engineers.No reproduction may be made of this material without written consent of ASME.cCopyrighted 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.Date of Issuance:September 30,2009The next edition of this Standard is scheduled for publication in 2012.There will be no addendaissued to this edition.ASME issues written replies to inquiries concerning interpretations of technical aspects of thisStandard.Interpretations are published on the ASME Web site under the Committee Pages athttp:/cstools.asme.org as they are issued.Items approved as errata to this edition are published on the ASME Web site under the CommitteePages at http:/cstools.asme.org.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 approved 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 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,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 does not undertake to insure anyone utilizing a standard against liability forinfringement of any applicable letters patent,nor assume 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 such 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 issued 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 American 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 2009 by the American Society of Mechanical Engineers.No reproduction may be made of this material without written consent of ASME.cCopyrighted 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.vCommittee Roster.viiCorrespondence With the B16 Committee.viiiIntroduction.ix1Scope.12PressureTemperature Ratings.23Nominal Pipe Size.44Marking.45Materials.56Dimensions.67Pressure Testing.108Requirements for Special Class Valves.11Figures1Method of Designating Location of Auxiliary Connections When Specified.142Thread Length for Auxiliary Connections.153Socket Welding for Auxiliary Connections.154Butt Welding for Auxiliary Connections.155Bosses for Auxiliary Connections.166Gate Body(Pressure Seal Bonnet).167Y Pattern Globe Body(Pressure Seal Bonnet).178Angle Body(Pressure Seal Bonnet):Bonnet Same as Y Pattern Globe.179Elbow Down(Pressure Seal Bonnet).1810Gate Body(Flanged Bonnet).1811Globe Body(Flanged Bonnet).1912Butterfly Body.1913Plug Body.2014Conduit Gate Body(Pressure Seal Bonnet).2015Dished Cover.2116Flat Cover.2117Butterfly Valve Body.22Tables1Material Specification List:Applicable ASTM Specification.232PressureTemperature Ratings.283Valve Body Minimum Wall Thickness,tm,mm(in.).954Minimum Wall Thickness for Socket Welding and Threaded Ends.101Mandatory AppendicesIRadiography Examination:Procedure and Acceptance Standards.103IIMagnetic Particle Examination:Procedure and Acceptance Standards.105IIILiquid Penetrant Examination:Procedure and Acceptance Standards.106IVUltrasonic Examination:Proc