AS 1722.2-1992 螺纹或惠氏螺纹管 第2部分螺纹扣件

AS1722.2—1992AustralianStandardPipethreadsofWhitworthformPart2:FasteningpipethreadsAccessedbyUNIVERSITYOFSOUTHAUSTRALIAon11Feb2007ThisAustralianStandardwaspreparedbyCommitteeME/28,ScrewThreads.ItwasapprovedonbehalfoftheCouncilofStandardsAustraliaon15October1991andpublishedon17January1992.ThefollowinginterestsarerepresentedonCommitteeME/28:ConfederationofAustralianIndustryDepartmentofDefenceDivisionofAppliedPhysics,CSIROFastenersInstituteofAustraliaFederalChamberofAutomotiveIndustriesInstituteofEngineers,AustraliaInstituteofProductionEngineersMetalTradesIndustryAssociationofAustraliaRailwaysofAustraliaCommitteeTechnicalandFurtherEducationCommission,N.S.W.ReviewofAustralianStandards.Tokeepabreastofprogressinindustry,AustralianStandardsaresubjecttoperiodicreviewandarekeptuptodatebytheissueofamendmentsorneweditionsasnecessary.ItisimportantthereforethatStandardsusersensurethattheyareinpossessionofthelatestedition,andanyamendmentsthereto.FulldetailsofallAustralianStandardsandrelatedpublicationswillbefoundintheStandardsAustraliaCatalogueofPublications;thisinformationissupplementedeachmonthbythemagazine‘TheAustralianStandard’,whichsubscribingmembersreceive,andwhichgivesdetailsofnewpublications,neweditionsandamendments,andofwithdrawnStandards.SuggestionsforimprovementstoAustralianStandards,addressedtotheheadofficeofStandardsAustralia,arewelcomed.NotificationofanyinaccuracyorambiguityfoundinanAustralianStandardshouldbemadewithoutdelayinorderthatthemattermaybeinvestigatedandappropriateactiontaken.ThisStandardwasissuedindraftformforcommentasDR91074.AccessedbyUNIVERSITYOFSOUTHAUSTRALIAon11Feb2007AS1722.2—1992AustralianStandardPipethreadsofWhitworthformPart2:FasteningpipethreadsFirstpublishedasASB154—1958(endorsementofBS2779—1956withoutamendment).RevisedandredesignatedAS1722.2—1975.Secondedition1989.Thirdedition1992.PUBLISHEDBYSTANDARDSAUSTRALIA(STANDARDSASSOCIATIONOFAUSTRALIA)1THECRESCENT,HOMEBUSH,NSW2140ISBN0726271624AccessedbyUNIVERSITYOFSOUTHAUSTRALIAon11Feb2007AS1722.2—19922PREFACEThisStandardwaspreparedbytheStandardsAustraliaCommitteeonScrewThreadstosupersedeAS1722.2—1989.ThisStandardistechnicallyequivalenttoISO228/1,Pipethreadswherepressure-tightjointsarenotmadeonthethreads,Part1:Designation,dimensionsandtolerances,andISO228/2,Pipethreadswherepressure-tightjointsarenotmadeonthethreads,Part2:Verificationbymeansoflimitgauges.The1989editionwhichwasbasedontheISO228/1and228/2documentscontainedcertaingauging/toleranceerrorsandomissionswhichcouldresultinimproperassessmentofthread’sgeometricqualitiesandwaswithdrawn.Nochangestobasicdimensionsinthe1992editionhavebeenmadewithregardtothe1975edition.Componentsmadetothecurrenteditionarefunctionallyidenticalandinterchangeablewithcomponentsmadeto1975edition.GaugesmanufacturedtocomplywiththelimitsspecifiedinAS1722.2—1975wereintendedtocheckthesamebasicdimensionsasthoselistedinAS1722.2—1992andmaythereforecontinuetobeuseduntiltheybecomewornbeyondthepermittedlimits.Theprincipaldifferencesbetweenthiseditionandthe1975editionareasfollows:(a)Thedesignfeaturesofscrewgaugesarenowexplained.(b)Modifiedtablesofdimensionsforfasteningpipethreads.(c)Modifiedtablesforscrewgaugelimits.(d)FiguresforthreadprofilesofGOringgaugesandtheircheckplugs,relativepositionsofpitchdiametertolerancezonesforNOTGOringgaugesandtheircheckplugs,arenowincluded.(e)GOgaugesnowhavewearallowance.(f)SymbolsnowalignwithISOpractice.(g)ProvisionfortheuseofrollertypescrewcallipergaugeswhicharecurrentlyusedinAustralianpractice.(h)SettingplugsforGOandNOTGOscrewcallipergaugesareincluded.CopyrightSTANDARDSAUSTRALIAUsersofStandardsareremindedthatcopyrightsubsistsinallStandardsAustraliapublicationsandsoftware.ExceptwheretheCopyrightActallowsandexceptwhereprovidedforbelownopublicationsorsoftwareproducedbyStandardsAustraliamaybereproduced,storedinaretrievalsysteminanyformortransmittedbyanymeanswithoutpriorpermissioninwritingfromStandardsAustralia.Permissionmaybeconditionalonanappropriateroyaltypayment.RequestsforpermissionandinformationoncommercialsoftwareroyaltiesshouldbedirectedtotheheadofficeofStandardsAustralia.StandardsAustraliawillpermitupto10percentofthetechnicalcontentpagesofaStandardtobecopiedforuseexclusivelyin-housebypurchasersoftheStandardwithoutpaymentofaroyaltyoradvicetoStandardsAustralia.StandardsAustraliawillalsopermittheinclusionofitscopyrightmaterialincomputersoftwareprogramsfornoroyaltypaymentprovidedsuchprogramsareusedexclusivelyin-housebythecreatorsoftheprograms.CareshouldbetakentoensurethatmaterialusedisfromthecurrenteditionoftheStandardandthatitisupdatedwhenevertheStandardisamendedorrevised.ThenumberanddateoftheStandardshouldthereforebeclearlyidentified.Theuseofmaterialinprintformorincomputersoftwareprogramstobeusedcommercially,withorwithoutpayment,orincommercialcontractsissubjecttothepaymentofaroyalty.ThispolicymaybevariedbyStandardsAustraliaatanytime.AccessedbyUNIVERSITYOFSOUTHAUSTRALIAon11Feb20073AS1722.2—1992CONTENTSPageSECTION1SCOPEANDGENERAL1.1SCOPE........................................................