1、ASME B16.33-2002(Revision of ASME B16.33-1990)MANUALLY OPERATED METALLIC GAS VALVES FORUSE IN GAS PIPING SYSTEMSUP TO 125 PSI(SIZES NPS 1/2THROUGH NPS 2)A N A M E R I C A N N A T I O N A LS T A N D A R DASME B16.33-2002(Revision of ASME B16.33-1990)MANUALLY OPERATED METALLIC GAS VALVES FORUSE IN GAS
2、 PIPING SYSTEMSUP TO 125 PSI(SIZES NPS 1/2THROUGH NPS 2)A N A M E R I C A N N A T I O N A LS T A N D A R DCopyrighted material licensed to Stanford University by Thomson Scientific(),downloaded on Oct-05-2010 by Stanford University User.No further reproduction or distribution is permitted.Uncontroll
3、ed when printed.AN AMERICAN NA TIONALST ANDARDMANUALLY OPERATED METALLIC GAS VALVES FORUSE IN GAS PIPING SYSTEMSUP TO 125 PSI(SIZES NPS 1/2THROUGH NPS 2)ASME B16.33-2002(Revision of ASME B16.33-1990)Copyrighted material licensed to Stanford University by Thomson Scientific(),downloaded on Oct-05-201
4、0 by Stanford University User.No further reproduction or distribution is permitted.Uncontrolled when printed.Date of Issuance:July 30,2002The next edition of this Standard is scheduled for publication in 2007.Therewill be no addenda or written interpretations of the requirements of thisStandard issu
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11、right 2002 byTHE AMERICAN SOCIETY OF MECHANICAL ENGINEERSAll 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 print
12、ed.CONTENTSForeword.ivCommittee Roster.viCorrespondence with the B16 Committee.vii1Scope.11.1General.11.2Design.11.3Standards and Specifications.11.4Quality Systems.11.5Convention.11.6Codes and Regulations.12Construction.12.1General.12.2Tamper-Proof Features.12.3Configuration.22.4Marking.22.5Lubrica
13、tion(Sealant).23Materials.23.1Metallic Materials for Valve Parts.23.2Lubricants,Sealants,and Seating Materials.24Design Qualification.34.1General.34.2Gas Tightness.34.3Temperature Resistance.34.4Structural Provision.44.5Flow Capacity.55Production Testing.5Figure1Test Assembly.4Tables1Materials for M
14、etallic Valve Parts.22Torque Values.43Bending Moment Values.44Tensile Load Values.55Maximum Turning Torque Values.56Minimum Gas Flows.5AnnexesAReferences.6BQuality System Program.8iiiCopyrighted material licensed to Stanford University by Thomson Scientific(),downloaded on Oct-05-2010 by Stanford Un
15、iversity User.No further reproduction or distribution is permitted.Uncontrolled when printed.FOREWORDThe B16 Standards Committee was organized in the Spring of 1920 and held itsorganizational meeting on November 21 of that year.The group operated as a SectionalCommittee(later redesignated as a Stand
16、ards Committee)under the authorization of theAmerican Engineering Standards Committee(subsequently named American Standards Associ-ation,United States of America Standards Institute,and now,American National StandardsInstitute).Sponsors for the group were The American Society of Mechanical Engineers,Manufacturers Standardization Society of the Valve&Fittings Industry,and the Heatingand Piping Contractors National Association(later the Mechanical Contractors Associationof America).The American Ga
