|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||BRITISHSTANDARDBSEN12351:1999TheEuropeanStandardEN12351:1999hasthestatusofaBritishStandardICS23.060.01NOCOPYINGWITHOUTBSIPERMISSIONEXCEPTASPERMITTEDBYCOPYRIGHTLAWIndustrialvalvesÐProtectivecapsforvalveswithflangedconnectionsLicensedCopy:InstituteOfTechnologyTallaght,InstituteofTechnology,SatJun0201:38:42GMT+00:002007,UncontrolledCopy,(c)BSIwww.bzfxw.comThisBritishStandard,havingbeenpreparedunderthedirectionoftheEngineeringSectorCommittee,waspublishedundertheauthorityoftheStandardsCommitteeandcomesintoeffecton15December1999�BSI12-1999ISBN0580354199BSEN12351:1999AmendmentsissuedsincepublicationAmd.No.DateCommentsNationalforewordThisBritishStandardistheEnglishlanguageversionofEN12351:1999.TheUKparticipationinitspreparationwasentrustedbyTechnicalCommitteePSE/7,Valves,toSubcommitteePSE/7/12,Valvesforprocessindustry,whichhastheresponsibilityto:Ðaidenquirerstounderstandthetext;ÐpresenttotheresponsibleEuropeancommitteeanyenquiriesontheinterpretation,orproposalsforchange,andkeeptheUKinterestsinformed;ÐmonitorrelatedinternationalandEuropeandevelopmentsandpromulgatethemintheUK.Alistoforganizationsrepresentedonthissubcommitteecanbeobtainedonrequesttoitssecretary.Cross-referencesTheBritishStandardswhichimplementinternationalorEuropeanpublicationsreferredtointhisdocumentmaybefoundintheBSIStandardsCatalogueunderthesectionentitledªInternationalStandardsCorrespondenceIndexº,orbyusingtheªFindºfacilityoftheBSIStandardsElectronicCatalogue.ABritishStandarddoesnotpurporttoincludeallthenecessaryprovisionsofacontract.UsersofBritishStandardsareresponsiblefortheircorrectapplication.CompliancewithaBritishStandarddoesnotofitselfconferimmunityfromlegalobligations.SummaryofpagesThisdocumentcomprisesafrontcover,aninsidefrontcover,theENtitlepage,pages2to5andabackcover.TheBSIcopyrightnoticedisplayedinthisdocumentindicateswhenthedocumentwaslastissued.LicensedCo...