BS5352-1981

BSIBSr535281=3624669038959313BS5352:1981UDC621.646.03:665.6.025CONFIRMEDNOVEMBER1983SpecificationforSteelwedgegate,globeandcheckvalves50mmandsmallerforthepetroleum,petrochemicaIandaIliedindustriesSpécificationpourlesvannesàcoin,sphériquesetderetenueenacierde50mmoumoinspourlesindustriesdupétrole,pétrochimiquesetindustriesassociéesSpezifikationfürStahlkeil-Absperr-,Durchgangs-undRegulierventile50mmundkleiner,fürdieErdöl-,Erdölchemie-undverwandteIndustrienBritishStandardsInstitutionCOPYRIGHTBritishStandardsInstituteonERCSpecsandStandardsLicensedbyInformationHandlingServicesCOPYRIGHTBritishStandardsInstituteonERCSpecsandStandardsLicensedbyInformationHandlingServicesA-BSIBSx5352ALMBS5352:1981ContentsForewordCooperatingorganizationsPage1Backcover'Sectionfive.Testing.43.Productpressuretesting,SpecificationSectionone.General1.Scope2.References3.Definition4.Pressureclassification5.Pressure/temperatureratings6.Nominalsizes7.Endtypes8.InformationtobesuppliedbythepurchaserSectiontwo.Design9.Shell1O.Backseatface11.Bolting12.Directionofflow13.Nameplate14.Wedge15.Diskanddisknut16.Stem17.Stuffingbox18.Yoke,yokesleeveandyokebush19.Bodyseatandbodyseatring20.Handwheel21.Bellowsseal22.CheckvalvesSectionthree.Materials23.Shell24.Bodyseatring.25.Bodyandbonnet/covergasket26.Wedge,disk,pistonorball27.Yoke28.Handwheel222223344555556667777778888829.Handwheelandyokebush/sleeveretainingnut830.Yokebushorsleeve831.Gland832.Bellows833.Trim834.Stempacking835.Bolting1036.Nameplate1037.Specialapplications10Sectionfour.Marking38.General39.Bodymarkings40.Identificationplatemarking4I.Additionalmarkings42.Omissionofmarkings1010101010Sectionsix.PreparationforLdspatc..44.DespatchpreparationAppendicesA.ApplicationtopipingsystemswithflangesB.ApplicationtopipingsystemswithscrewC.TypetestforbellowsusedinbellowssealD.Detailsofbutt-weldendsinaccordancewithBS4504:Part1threadsinaccordancewithBS21gateorglobevalvesTablesI.Pressure/temperatureratingsforclass800screwedandsocket-weldendvalves2.Pressure/temperatureratingsforbellowssealvalves3.Endtypeavailabilityaccordingtoclassandsizeofvalve4.Minimumbodyandbonnetwallthickness(excludingpipeends)5.Minimumportdiameterandseatbore6.Minimumoutsidediameterordimensionacrossflatsofbodyends7.MinimumweartravelPage1011181819193334456.8.Minimumstemdiameterforwedgegatevalves69.Minimumstemdiameterforglobevalves61O.Packingandstuffingboxdimension61I.Valvetrimmaterial91la.Requiredproductionpressuretests12.NominalpressueicÍassratingandnominalsizerange1813.Tabledeleted1814.MinimumoutsidediameterofsealingfaceforvalvesmithparallelthreadsinaccordancewithES211815.Dimensionsofbutt-weldends19FiguresI.Typicalwedgegatevalve(outsidescrew)2.Typicalwedgegatevalve(insidescrew)11123.Typicalglobevalve(outsidescrew)134.Typicalglobevalve(insidescrew).145.Typicalverticalballcheckvalve156.Typicalpiston/ballcheckvalve167.Typicalbellowssealwedgegatevalve178.Weld-endforconnectiontopipeofwall19thicknesstof4.8mmto22mrninclusiveCOPYRIGHTBritishStandardsInstituteonERCSpecsandStandardsLicensedbyInformationHandlingServicesCOPYRIGHTBritishStandardsInstituteonERCSpecsandStandardsLicensedbyInformationHandlingServices~~~~BSIBS*535Z81=16246690189593I=ForewordThisBritishStandardhasbeenpreparedunderthedirectionoftheMechanicalEngineeringStandardsCommitteeandconstitutesarevisionofBS2995:1966andBS3808:1964.Thisnewmetricstandardcoversclasses800and1500screwedandsocket-weldendwedgegate,globeandcheckvalvespreviouslycoveredbyBS2995andBS3808,alsoclasses150,300,600and1500flangedandbutt-weldendwedgegate,globeandcheckvalvespreviouslycoveredbyBS3808,BS1414,BS1868andBS1873.Apartfrommetrication,Thevalvesarebasicallythesame,butthelistofshellandtrimmaterialshasbeenextendedandbellowssealvalveshavebeenincluded.BS2995andBS3808arewithdrawnonpublicationofthisstandard.AmendmentstoBS1414,BS1868andBS1873willdeletereferencestosize40mmandsmaller.BS2080willbeamended.TheplugvalvespreviouslycoveredinBS2995willbeincludedinthenewmetricversionofBS1570.TheprevioussectionsinBS2995andBS3808dealingwithtestsandinspectionhavenotbeenincludedinthisstandard,asthesearenowthesubjectofaseparate.'NOTE.RequirementsforfinalinspectionandsupplementaryinspectionatallstagesofmanufacturepreviouslyspecifiedinBS5146:Part1:1974(nowwithdrawn)shouldbestatedbytheAstandard,BS6755:PartI--purchaserinhisenquiryz[xcer.l_~./---------ASimilarly,sectionsinBS2995andBS3808dealingwithdimensionalsizesandtolerancesofscrewedandsocket-weldenddetailshavebeenomittedandcrossreferencesmadetotheappropriatesectionsofthenewmetricversionofBS3799,whichinturnhasbeenmodifiedforboredimensionsofsocketstoallowuseofpipeinaccordancewithBS3600andBS1600.BS5352:1981ItistheintentionthatvalvescomplyingwiththerequirementsofthisstandardshallbeinterchangeableasunitswiththoseofsimilartypeproducedbyAmericanmanufacturers.Inthepreparationofthisstandard,considerationhasthereforebeengiventothelatesteditionofAPIStandard602.Valvesspecifiedinthisstandardareprimarilyintendedforinstallationasfollows:(a)screwedends,withpipesorfittingsthreadedinaccordancewithAPIStandard5