1、ASME B16.22-2001(Revision of ASME B16.22-1995)WROUGHT COPPERAND COPPER ALLOYSOLDER JOINTPRESSURE FITTINGSAN AMERICAN NATIONAL STANDARDThe American Society ofMechanical Engineersto with ASMENo roproduction or networking permitled without liconso from IHSNot for RosaleThe American Society ofMechanical
2、 EngineersNATION ALSTAN D AR DWROUGHT COPPERAND COPPER ALLOYSOLDER JOINTPRESSURE FITTINGSASMB16.22-2001(Revision of ASME B16.22-1995)to with ASMENo roproduction or notworking permitled without liconso from IHSNot for RosaleCONTENTSForew0rd公Standards Committee Roster.vi1 Scope1Pressure-Temperature Ra
3、tings13Terminology.24 Size25Marking26Material27 Laying Lengths.58Tube Stops.59 Inspection Tolerance510 Threaded Ends.711 Alignment.712 Gaging.7Figures1Method of Designating Laying Lengths of Fittings and Openings of Reducing Fittings。32Tube Stops.53Alignment.7Tables1Rated Internal Working Pressure f
4、or Copper Fittings,kPa.22Inspection Tolerance.53Dimensions of Solder-Joint Ends,mm.6Mandatory AppendicesI Strength of Solder Joints9IIU.S.Customary Equivalents.11III References.14Nonmandatory AppendicesA Fitting Rating.15B Quality System Program.16册No roproduction or notworking permitled without lic
5、onso from IHSNot for RosaleFOREWORDStandardization of cast and wrought solder-joint fittings was initiated in Subcommittee11 of American Standards Association(ASA)Sectional Committee A40 on PlumbingRequirements and Equipment.Development work culminated in publication of ASA A40.3-1941.The standard b
6、enefited from work done by Mr.A.R.Maupin of the National Bureauof Standards,both before and during its development.on the strength of solder joints.In 1949,work on these fittings was transferred to Sectional Committee B16,whichestablished Subcommittee 9(now Subcommittee J)with a scope broader than p
7、lumbingapplications.The first standard developed was approved as ASA B16.18-1950,Cast-BrassSolder Joint Fittings.It was then decided to revise A40.3 as a B16 standard covering onlywrought solder-joint fittings.This effort was facilitated by a 1950 draft prepared by jointeffort of the Copper and Bras
8、s Research Association and the Manufacturers StandardizationSociety of the Valve and Fittings Industry(MSS).The draft,after review and approval bySubcommittee 9 and the Sectional Committee,was approved as B16.22-1951.Revisions were published as ASA B16.22-1963 and,after reorganization of ASA as theA
9、merican National Standards Institute(ANSD),as ANSI B16.22-1973.In these editions,updated practices,new materials,and new types of fittings were incorporated into thestandard,as well as editorial improvements and updating of referenced specifications andstandards.In 1979,Subcommittee I(formerly 9,now
10、 J)added metric dimensional equivalents andmade other minor improvements.This revision was approved by ANSI,after approval bythe Committee and secretariat organizations,as ANSI B16.22-1980.In 1982,American National Standards Committee B16 was reorganized as an ASMECommittee operating under procedure
11、s accredited by ANSI.In 1989,Subcommittee J removed metric equivalents and updated referenced standards.In 1995,Subcommittee J defined bursting strength,defined standard gaging method forthreaded ends,revised solder-joint lengths for s in.size external and internal ends,andrevised minimum wall-thick
12、ness values based on a comprehensive bursting-test study.Following approval by the Standards Committee and ASME,approval as an AmericanNational Standard was given by ANSI on July 24,1995,with the new designation ASMEB16.22-1995.In 1998.editorial revisions,which included the addition of a new section
13、 on qualitysystems and a change in the designation of ASTM B 32 alloys,were issued as an addendum.This addendum to the 1995 edition of ASME B16.22,after approval by the ASME B16Committee and ASME,was approved as ASME B16.22a-1998.In this 2001 edition,Subcommittee J converted the physical requirement
14、s to SI(metric)units of measure,added requirements for tube stops,clarified ovulate and alignmentrequirements,and made numerous editorial revisions.Alloy E and Alloy HB were incorporatedinto the table listing pressure-temperature ratings for the soldering and brazing materials,plus values for the 95
15、-5 tin-antimony solder were revised.These revisions to pressure-temperature ratings reflect the data from a National Institute of Standards and Technology(NIST)solder-joint testing study,initiated in 1993 to develop stress rupture and strengthdata on copper tube sleeve joints using various solders.Following approval by the StandardsivNo roproduction or notworking permitled without liconso from IHSNot for Rosale
