MSSSP-72-2010BallValveswithFlangedorButt-WeldingEndsforGeneralServiceStandardPracticeDevelopedandApprovedbytheManufacturersStandardizationSocietyoftheValveandFittingsIndustry,Inc.127ParkStreet,NEVienna,Virginia22180Phone:(703)281-6613Fax:(703)281-6671e-mail:info@mss-hq.orgwww.mss-hq.orgMSSSTANDARDPRACTICESP-72iThisMSSStandardPracticewasdevelopedundertheconsensusoftheMSSTechnicalCommittee401andtheMSSCoordinatingCommittee.ThecontentofthisStandardPracticeistheresultoftheeffortsofcompetentandconcernedvolunteerstoprovideaneffective,clear,andnon-exclusivespecificationthatwillbenefittheindustryasawhole.ThisMSSStandardPracticeisintendedasabasisforcommonpracticebythemanufacturer,theuser,andthegeneralpublic.TheexistenceofanMSSStandardPracticedoesnotinitselfprecludethemanufacture,sale,oruseofproductsnotconformingtotheStandardPractice.Mandatoryconformanceisestablishedonlybyreferenceinacode,specification,salescontract,orpubliclaw,asapplicable."OtherstandardsdocumentsreferredtohereinareidentifiedbythedateofissuethatwasapplicabletothisStandardPracticeatthedateofissueofthisStandardPractice.SeeAnnexA.ThisStandardPracticeshallremainsilentontheapplicabilityofthoseotherstandardsofpriororsubsequentdatesofissueeventhoughapplicableprovisionsmaynothavechanged.Referencescontainedhereinwhicharebibliographicinnaturearenotedas‘supplemental’inthetext.”UnlessotherwisespecificallynotedinthisMSSSP,anystandardreferredtohereinisidentifiedbythedateofissuethatwasapplicabletothereferencedstandard(s)atthedateofissueofthisMSSStandardPractice(SeeAnnexA).InthisStandardPracticeallnotes,annexes,tables,andfiguresareconstruedtobeessentialtotheunderstandingofthemessageofthestandard,andareconsideredpartofthetextunlessnotedas"supplemental".Allappendices,ifincluded,thatappearinthisdocumentareconstruedas"supplemental".Supplementalinformationdoesnotincludemandatoryrequirements.U.S.customaryunitsinthisStandardPracticearethestandard;metric(SI)unitsareforreferenceonly.Substantivechangesinthis2010editionare“flagg...
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