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ANSI/FCI70-2-2006AMERICANNATIONALSTANDARDCONTROLVALVESEATLEAKAGEFluidControlsInstitute,Inc.Sponsor:FluidControlsInstitute,Inc.1300SumnerAveCleveland,Ohio44115-2851iiANSI/FCI70-2-2006AMERICANNATIONALSTANDARDControlValveSeatLeakageSponsorFluidControlsInstitute,Inc.标准分享网www.bzfxw.com免费下载标准分享网www.bzfxw.com免费下载www.bzfxw.comiiiAmericanNationalStandardimpliesaconsensusofthosesubstantiallyconcernedwithitsscopeandprovisions.AnAmericanNationalStandardisintendedasaguidetoaidthemanufacturer,theconsumer,andthegeneralpublic.TheexistenceofanAmericanNationalStandarddoesnotinanyrespectprecludeanyone,whetherhehasapprovedthestandardornot,frommanufacturing,marketing,purchasingorusingproducts,processes,orproceduresnotconformingtothestandard.AmericanNationalStandardsaresubjecttoperiodicreviewandusersarecautionedtoobtainthelatesteditions.CAUTIONNOTICE:ThisAmericanNationalStandardmayberevisedorwithdrawnatanytime.TheproceduresoftheAmericanNationalStandardsInstituterequirethatactionbetakentoreaffirm,revise,orwithdrawthisstandardnolaterthanfiveyearsfromthedateofpublication.PurchasersofAmericanNationalStandardsmayreceivecurrentinformationonallstandardsbycallingorwritingtheAmericanNationalStandardsInstitute.Sponsoredandpublishedby:FLUIDCONTROLSINSTITUTE,INC.1300SumnerAvenueCleveland,OH44115-2851Phn:216/241-7333Fax:216/241-0105E-Mail:fci@fluidcontrolsinstitute.orgURL:www.fluidcontrolsinstitute.orgCopyright©2006,1998,1968byFluidControlsInstitute,Inc.AllRightsReservedNopartofthispublicationmaybereproducedinanyform,inanelectronicretrievalsystemorotherwise,withoutthepriorwrittenpermissionofthepublisher.Suggestionsforimprovementofthisstandardwillbewelcome.TheyshouldbesenttotheFluidControlsInstitute,Inc.PrintedintheUnitedStatesofAmericaAmericanNationalStandardwww.bzfxw.comivCONTENTSPAGEForeword..............................................................................................................................v1.Purpose........................................................