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0501256790mMSSSP-92-1999MSSValveUserGuideStandardPracticeDevelopedandApprovedb!ytheManufacturersStandardizationSocietyoftheValveandFittingsIndustry,Inc.127ParkStreet,N.E.Vienna,Virginia22180(703)281-6613COPYRIGHTManufacturersStandardizationSocietyoftheValveandFittingsLicensedbyInformationHandlingServicesCOPYRIGHTManufacturersStandardizationSocietyoftheValveandFittingsLicensedbyInformationHandlingServicesMSSSTANDARDPRACTICESP-92AnMSSStandardPracticeisintendedasabasisforcommonpracticebythemanufacturer,theuser,andthegeneralpublic.TheexistenceofanMSSStandardPracticedoesnotinitselfprecludethemanufacture,sale,oruseofproductsnotconformingtotheStandardPractice.Mandatoryconformanceisestablishedonlybyreferenceinacode,specification,salescontract,orpubliclaw,asapplicable.UnlessotherwisespecificallynotedinthisMSSSP,anystandardreferredtohereinisidentifiedbythedateofissuethatwasapplicabletothereferencedstandard(s)atthedateofissueofthisMSSSP.(SeeAnnexA).InthisStandardPracticeallnotes,annexes,tables,andfiguresareconstruedtobeessentialtotheunderstandingofthemessageofthestandard,andareconsideredpartofthetextunlessnotedas“supplemental”.Allappendicesappearinginthisdocumentareconstruedas“supplemental”.“Supplemental”informationdoesnotincludemanda-toryrequirements.IU.S.customaryunitsinthisSParethestandard;themetricunitsareforreferenceonly.Thisdocumenthasbeensubstantiallyrevisedfromtheprevious1987edition.Itissuggestedthatiftheuserisinterestedinknowingwhatchangeshavebeenmade,thatdirectpagebypagecomparisonshouldbemadeofthisdocument.Non-tolerancedDimensionsinthisStandardPracticearenominal,and,uselessotherwisespecified,shallbeconsid-ered“forreferenceonly”.Anypartofthisstandardmaybequoted.Creditfinesshouldread“ExtractedfromMSSSP-92,withpermissionofthepublishel;theManufacturersStandardizationSociety.”ReproductionprohibitedundercopyrightconventionunlesswrittenpermissionisgrantedbytheManufacturersStandardizationSocietyoftheValveandFittingsIndustry,Inc.OriginallyApprovedFebruary1980Copy...