BS EN 12284-2003 Refrigerating systems and heat pu

BRITISHSTANDARDBSEN12284:2003Refrigeratingsystemsandheatpumps—Valves—Requirements,testingandmarkingTheEuropeanStandardEN12284:2003hasthestatusofaBritishStandardICS23.060.20

 
 LicensedCopy:InstituteOfTechnologyTallaght,InstituteofTechnology,SatJun3003:25:00GMT+00:002007,UncontrolledCopy,(c)BSIBSEN12284:2003ThisBritishStandard,waspublishedundertheauthorityoftheStandardsPolicyandStrategyCommitteeon26September2003©BSI26September2003ISBN0580426998NationalforewordThisBritishStandardistheofficialEnglishlanguageversionofEN12284:2003.TheUKparticipationinitspreparationwasentrustedtoTechnicalCommitteeRHE/18,Refrigerationsafety,whichhastheresponsibilityto:Alistoforganizationsrepresentedonthiscommitteecanbeobtainedonrequesttoitssecretary.Cross-referencesTheBritishStandardswhichimplementinternationalorEuropeanpublicationsreferredtointhisdocumentmaybefoundintheBSICatalogueunderthesectionentitled“InternationalStandardsCorrespondenceIndex”,orbyusingthe“Search”facilityoftheBSIElectronicCatalogueorofBritishStandardsOnline.Thispublicationdoesnotpurporttoincludeallthenecessaryprovisionsofacontract.Usersareresponsibleforitscorrectapplication.CompliancewithaBritishStandarddoesnotofitselfconferimmunityfromlegalobligations.—aidenquirerstounderstandthetext;—presenttotheresponsibleinternational/Europeancommitteeanyenquiriesontheinterpretation,orproposalsforchange,andkeeptheUKinterestsinformed;—monitorrelatedinternationalandEuropeandevelopmentsandpromulgatethemintheUK.SummaryofpagesThisdocumentcomprisesafrontcover,aninsidefrontcover,theENtitlepage,pages2to63andabackcover.TheBSIcopyrightnoticedisplayedinthisdocumentindicateswhenthedocumentwaslastissued.AmendmentsissuedsincepublicationAmd.No.DateCommentsLicensedCopy:InstituteOfTechnologyTallaght,InstituteofTechnology,SatJun3003:25:00GMT+00:002007,UncontrolledCopy,(c)BSIEUROPEANSTANDARDNORMEEUROPÉENNEEUROPÄISCHENORMEN12284September2003ICS23.060.20EnglishversionRefrigeratingsystemsandheatpumps-Valves-Requirements,testingandmarkingSystèmesderéfrigérationetpompesàchaleur-Robinetterie-Exigences,essaisetmarquageKälteanlagenundWärmepumpen-Ventile-Anforderungen,PrüfungundKennzeichnungThisEuropeanStandardwasapprovedbyCENon21April2003.CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEuropeanStandardthestatusofanationalstandardwithoutanyalteration.Up-to-datelistsandbibliographicalreferencesconcerningsuchnationalstandardsmaybeobtainedonapplicationtotheManagementCentreortoanyCENmember.ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).AversioninanyotherlanguagemadebytranslationundertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheManagementCentrehasthesamestatusastheofficialversions.CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece,Hungary,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal,Slovakia,Spain,Sweden,SwitzerlandandUnitedKingdom.EUROPEANCOMMITTEEFORSTANDARDIZATIONCOMITÉEUROPÉENDENORMALISATIONEUROPÄISCHESKOMITEEFÜRNORMUNGManagementCentre:ruedeStassart,36B-1050Brussels©2003CENAllrightsofexploitationinanyformandbyanymeansreservedworldwideforCENnationalMembers.Ref.No.EN12284:2003ELicensedCopy:InstituteOfTechnologyTallaght,InstituteofTechnology,SatJun3003:25:00GMT+00:002007,UncontrolledCopy,(c)BSIEN12284:2003(E)2ContentsPageForeword......................................................................................................................................................................31Scope..............................................................................................................................................................32Normativereferences....................................................................................................................................33Termsanddefinitions....................................................................................................................................44ListofSymbols..............................................................................................................................................65GeneralRequirements...................................................................................................................................76Materials..........................................................................................................................................................87Design...........................................................................................................................................................108Constructionandworkmanship.................................................................................................................119Testing...................................................................................................................................................