1、BRITISH STANDARDBS EN 12266-2:2002 Incorporating Corrigendum No. 1Industrial valves Testing of valves Part 2: Tests, test procedures and acceptance criteria Supplementary requirementsThe European Standard EN 12266-2:2002 has the status of a British StandardICS 23.060.01Licensed Copy: Institute Of Te
2、chnology Tallaght, Institute of Technology, Tue Aug 22 00:18:55 BST 2006, Uncontrolled Copy, (c) BSIBS EN 12266-2:2002This British Standard, having been prepared under the direction of the Engineering Sector Policy and Strategy Committee, was published under the authority of the Standards Policy and
3、 Strategy Committee on 6 December 2002 BSI 23 May 2003ISBN 0 580 40898 1National forewordThis British Standard is the official English language version of EN 12266-2:2002. Together with BS EN 12266-1:2003, it supersedes BS 6755-1:1986 which is withdrawn.The UK participation in its preparation was en
4、trusted by Technical Committee PSE/7, Industrial valves, to Subcommittee PSE/7/1, Basic standards, which has the responsibility to: A list of organizations represented on this subcommittee can be obtained on request to its secretary.Cross-referencesThe British Standards which implement international
5、 or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online.This publication does not purport to in
6、clude all the necessary provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enqu
7、iries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK.Summary of pagesThis document comprises a front cover, an inside front cover, the EN title page, pages 2 to 13 and a back co
8、ver.The BSI copyright date displayed in this document indicates when the document was last issued.Amendments issued since publicationAmd. No. Date Comments14506 Corrigendum No. 123 May 2003 Addition of supersession details to national forewordLicensed Copy: Institute Of Technology Tallaght, Institut
9、e of Technology, Tue Aug 22 00:18:55 BST 2006, Uncontrolled Copy, (c) BSIEUROPEANSTANDARDNORMEEUROPENNEEUROPISCHENORMEN122662November2002ICS23.060.01EnglishversionIndustrialvalvesTestingofvalvesPart2:Tests,testproceduresandacceptancecriteriaSupplementaryrequirementsRobinetterieindustrielleEssaisdesa
10、ppareilsderobinetteriePartie2:Essais,procduresdessaietcritresdacceptationPrescriptionscomplmentairesIndustriearmaturenPrfungvonArmaturenTeil2:Prfungen,PrfverfahrenundAnnahmekriterienErgnzendeAnforderungenThisEuropeanStandardwasapprovedbyCENon2October2002.CENmembersareboundtocomplywiththeCEN/CENELECI
11、nternalRegulationswhichstipulatetheconditionsforgivingthisEurope anStandardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnationalstandardsmaybeobtainedonapplicationtotheManagementCentreortoanyCENmember.ThisEuropeanStandardexistsinthreeoffici
12、alversions(English,French,German).Aversioninanyotherlanguagemadebytra nslationundertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheManagementCentrehasthesamestatusasthe officialversions.CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germa
13、ny,Greece,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal,Spain,Sweden,SwitzerlandandUnitedKingdom.EUROPEANCOMMITTEEFORSTANDARDIZATIONCOMITEUROPENDENORMALISATIONEUROPISCHESKOMITEEFRNORMUNGManagementCentre:ruedeStassart,36B1050Brussels2002CEN Allrightsofexploitationinanyformandbyan
14、ymeansreservedworldwideforCENnationalMembers.Ref.No.EN122662:2002ELicensed Copy: Institute Of Technology Tallaght, Institute of Technology, Tue Aug 22 00:18:55 BST 2006, Uncontrolled Copy, (c) BSIEN122662:2002(E)2ContentspageForeword .3Introduction .41 Scope .42 Normativereferences. .43 Termsanddefi
15、nitions. .44 Testrequirements . .55 Designation .5AnnexA(normative)PressuretestsTestproceduresandacceptancecriteria . .6A.1 Generalrequirements. .6A.2 Obturatorstrength,TestP20 . .8A.3 Backseattightness,TestP21 . .10AnnexB(normative)FunctionaltestsTestproceduresandacceptancecriteria. .12B.1 Operabil
16、ity,TestF20 . .12B.2 Antistaticdesign,TestF21andTestF22. .12Licensed Copy: Institute Of Technology Tallaght, Institute of Technology, Tue Aug 22 00:18:55 BST 2006, Uncontrolled Copy, (c) BSIEN122662:2002(E)3ForewordThisdocumentEN122662:2002hasbeenpreparedbyTechnicalCommitteeCEN/TC69Industrialvalves,
17、thesecretariatofwhichisheldbyAFNOR.ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublicationofanidenticaltextorbyendorsement,atthelatestbyMay2003,andconflictingnationalstandardsshallbewithdrawnatthelatestbyMay2003.EN12266consistsoftwoparts,whichcanbeusedseparatelyunderthegener
18、altitle, IndustrialvalvesTestingofvalves : Part 1: Pressuretests,testproceduresandacceptancecriteriaMandatoryrequirements Part 2: Tests,testproceduresandacceptancecriteriaSupplementaryrequirementsPart1wasdrawnuponthebasisofInternationalStandardISO5208andPart2containssupplementarytestingrequirementsf
19、ortests,testproceduresandacceptancecriteriaofvalves.Specialrequirements,whicharespecifictooneproductoroneperformancestandardonly,arenotincludedinthisstandard.Detailsshouldbeincludedintheappropriatestandard.AnnexesAandBarenormative.AccordingtotheCEN/CENELECInternalRegulations,thenationalstandardsorga
20、nizationsofthefollowingcountriesareboundtoimplementthisEuropeanStandard:Austria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal,Spain,Sweden,SwitzerlandandtheUnitedKingdom.Licensed Copy: Institute Of Technology Tallaght,
21、Institute of Technology, Tue Aug 22 00:18:55 BST 2006, Uncontrolled Copy, (c) BSIEN122662:2002(E)4IntroductionThepurposeofthisEuropeanStandardistoestablishcertainbasicrequirementsforsupplementarytestingofindustrialvalvesinordertoensureuniformtestsandtestproceduresareadopted.Thetestsandproceduresdeta
22、iledmaybeusedforproductiontestsandalso,whenrequired,fortypetestsandacceptancetests.1ScopeThisEuropeanStandardspecifiessupplementaryrequirementsfortests,testproceduresandacceptancecriteriaofindustrialvalves.Thespecifiedtestsmaybeusedastypetests,productiontestsoracceptancetests.Theapplicationofthesete
23、stswillbespecifiedintheappropriateproductorperformancestandards.Whenspecifiedasanormativereferenceinavalveproductorperformancestandard,itisessentialtoconsiderthisstandardinconjunctionwiththespecificrequirementsofthatvalveproductorperformancestandard.Whererequirementsinaproductorperformancestandarddi
24、fferfromthosegiveninthisstandard,therequirementsoftheproductorperformancestandardapply.2 NormativereferencesThisEuropeanStandardincorporatesbydatedorundatedreference,provisionsfromotherpublications.Thesenormativereferencesarecitedattheappropriateplacesinthetext,andthepublicationsarelistedhereafter.F
25、ordatedreferences,subsequentamendmentstoorrevisionsofanyofthesepublicationsapplytothisEuropeanStandardonlywhenincorporatedinitbyamendmentorrevision.Forundatedreferencesthelatesteditionofthepublicationreferredtoapplies(includingamendments).EN7361, ValvesTerminologyPart1:Definitionoftypesofvalves.EN73
26、62, ValvesTerminologyPart2:Definitionofcomponentsofvalves.EN7363, ValvesTerminologyPart3:Definitionofterms.EN1267, ValvesTestofflowresistanceusingwaterastestfluid.ISO10497, TestingofvalvesFiretypetestingrequirements.prEN1226611), IndustrialvalvesTestingofvalvesPart1:Pressuretests,testproceduresandac
27、ceptancecriteriaMandatoryrequirements.3 TermsanddefinitionsForthepurposesofthisEuropeanStandard,thetermsanddefinitionsgiveninEN7361,EN7362andEN7363apply.1) Tobepublished.Licensed Copy: Institute Of Technology Tallaght, Institute of Technology, Tue Aug 22 00:18:55 BST 2006, Uncontrolled Copy, (c) BSI
28、EN122662:2002(E)54 TestrequirementsTheproductorperformancestandardsshallspecifywhichtestsorinspectionsshallbeappliedtothevalvefromthoselistedinTable1.TestproceduresandacceptancecriteriashallbeasgiveninannexAforpressuretests,inannexBforfunctionaltestsorinotherspecifiedstandards,seeTable1.Table1Requir
29、ementsfortests,testproceduresandacceptancecriteriaTestTitle TestreferencePurposeTestprocedureandacceptancecriteriaObturatorstrength P20 ToconfirmtheallowabledifferentialpressurecontainingcapabilityoftheobturatorintheclosedpositionseeA.2Backseattightness P21 Toconfirmthecapacityofthebackseattoconform
30、tothespecifiedleakagerateatthetimeofmanufactureseeA.3Operability F20 Toconfirmthecompleteopeningandclosingcapabilityofthevalveand,whereapplicable,thecorrectoperationofthepositionindicatorsorotherauxiliarydevicesseeB.1Antistaticdesignat12VF21 Toconfirmelectricalconductivitybetweentheobturatorandthebo
31、dyofthevalveseeB.2.2.2Antistaticdesignat100VF22 ToconfirmelectricalconductivitybetweentheobturatorandthebodyofthevalveseeB.2.2.3Firetesteddesign F23 ToconfirmthepressurecontainingcapabilityofthevalveunderpressureduringandafterspecifiedfireconditionsISO10497Flowresistance F24 Toconfirmthespecifiedflo
32、wcoefficientorflowresistancecoefficientEN12675DesignationTestsinaccordancewiththisstandardshallbedesignatedbythefollowingelements: titleoftest,testreference; EN 122662.EXAMPLE Operability,TestF20EN122662Licensed Copy: Institute Of Technology Tallaght, Institute of Technology, Tue Aug 22 00:18:55 BST
33、 2006, Uncontrolled Copy, (c) BSIEN122662:2002(E)6Annex A(normative)PressuretestsTestproceduresandacceptancecriteriaA.1 GeneralrequirementsA.1.1PurposeThesegeneralrequirementsshallbeappliedtoallthetestproceduresdefinedinthisannex.Safetyaspectsofvalvetestingarenotcoveredinthisstandard.Theusersofthiss
34、tandardshouldanalysethehazardresultingfromthepressureandtakepropersafetyprecautions.A.1.2 TestequipmentThetestequipmentshallbeofsuchadesign,thatitdoesnotsubjectthevalvetoexternallyappliedloadswhichmayaffecttheresultsofthetest.NOTE Thetestequipmentcanapplyexternalloadssufficienttoreacttotheforcesresu
35、ltingfromthetestpressure.Whenusingtestequipmentandproceduresdifferenttothatdetailedinthisstandard,themanufacturershallbeabletodemonstratetheequivalenceofsuchtestproceduresandacceptancecriteriawiththerequirementsofthisstandard.A.1.3 MeasuringequipmentThemeasuringequipmentshallbecapableofmeasuringthef
36、luidpressurewithanaccuracyof 5%oftherequiredtestpressure.A.1.4 Painted,coatedorlinedvalvesValveswithliners,internalliningsorinternalcoatingsthatformadesignfeatureofthevalvemaybetestedwiththelinerorafterliningorcoating.Iftestsinthepresenceofarepresentativeofthepurchaserarespecified,valvesfromstockcan
37、beretested .A.1.5 TestfluidThetestfluidtobeused,asspecifiedintherelevanttestproceduresdetailedinA.2.2.1andA.3.2.1,shallbe: eitheraliquid(waterwhichmaycontainacorrosioninhibitor,oranyothersuitableliquidhavingaviscositynotgreaterthanwater); oragas(airorothersuitablegas).Thetestfluidtemperatureshallbeb
38、etween5Cand40C.A.1.6 TestpressureThetestpressureshallbecalculatedbasedontheallowablepressureatroomtemperature ps/RT.Forvalvesforwhichtheallowablepressure psisgivenonlyforanelevatedtemperaturet,theallowablepressureatroomtemperature, ps/RT,tobeusedtodeterminethetestpressureshallbecalculatedfromthefoll
39、owingequation:Licensed Copy: Institute Of Technology Tallaght, Institute of Technology, Tue Aug 22 00:18:55 BST 2006, Uncontrolled Copy, (c) BSIEN122662:2002(E)7min/t p0,2min/RT p0,2s/t s/RTRRp p =where:min/RT p0,2R isthe0,2%proofstrengthatroomtemperatureaccordingtotherelevantmaterialstandard;min/t
40、p0,2R isthe0,2%proofstrengthattemperature t accordingtotherelevantmaterialstandard;s/tp istheallowablepressureattemperature t .NOTE Thetermmaximumallowablepressure,PS,definedinEUDirective97/23/EC(PED)isequivalenttothetermallowablepressure, ps,definedinEN7363.A.1.7 EquivalentDNnumbersForthepurposeofc
41、alculatingseatleakageratesandtestdurationtimesitisnecessarytoestablishtheequivalentDNnumberforthosevalveswhicharedesignatedotherthanbyDN.TheequivalentDNnumbersofvalveshavingflangedends,threadedends,weldends,capillaryorcompressionendsshallbeasgiveninTableA.1.TableA.1EquivalentDNnumbersfordifferenttyp
42、esofbodyendsEquivalent Flanged,threaded Capillaryorcompressionends CompressionendsforplasticDN orweldingends forcoppertube tubenumbersNPSmm mm8810 10;12 10;1215 14;14,7;15;16;18 14,7;15;16;1820 21;22 20;21;2225 1 25;27,4;28 25;27,4;2832 1 34;35;38 32;3440 1 40;40,5;42 40;40,550 2 53,6;54 50;53,665 2
43、 64;66,7;70 6380 3 76,1;80;88,9 75;90100 4 108 110125 5 150 6 200 8 250 10 300 12 350 14 400 16 450 18 500 20 600 24 650 26 700 28 750 30 800 32 900 36 1000 42 Licensed Copy: Institute Of Technology Tallaght, Institute of Technology, Tue Aug 22 00:18:55 BST 2006, Uncontrolled Copy, (c) BSIEN122662:2
44、002(E)8A.2 Obturatorstrength,TestP20A.2.1PurposeThetestshallconfirmtheallowabledifferentialpressurecontainingcapabilityoftheobturatorintheclosedposition.A.2.2 TestmethodA.2.2.1 TestprocedureThetestfluidshallbealiquidorgas.Thechoiceofthetestfluidistheresponsibilityofthemanufacturer.Thetestprocedureto
45、beusedforthedifferenttypesofvalveshallbetakenfromTableA.2.TableA.2ObturatorstrengthtestmethodTypeofvalve TestprocedureGatevalve 1. Filltheupstreamvalvecavityincluding,ifappropriate,thebonnetcavitywiththetestfluid.Ballvalve 2. Movetheobturatortotheclosedpositionwiththeothersideopentoatmosphere.Plugva
46、lve 3. ApplythetestpressurespecifiedinA.2.2.2andmaintainthetestpressureforthetestdurationspecifiedinA.2.2.3.4. Examinetheobturatorforleaktightness.5. Repeat3and4inclusivefortheothersideofthevalve.SeeNOTES1,2and3.Globevalve 1. Filltheupstreamvalvecavitywiththetestfluid.2. Movetheobturatortotheclosedp
47、osition.3. ApplythetestpressurespecifiedinA.2.2.2inthedirectiontounseattheobturatorwiththeothersideopentoatmosphereandmaintainthetestpressureforthetestdurationspecifiedinA.2.2.3.4. Examinetheobturatorforleaktightness.Diaphragmvalve 1. Filltheupstreamvalvecavitywiththetestfluid.2. Movetheobturatortot
48、heclosedposition.3. ApplythetestpressurespecifiedinA.2.2.2inthedirectioninwhichtheobturatorisweakerwiththeothersideopentoatmosphere,andmaintainthetestpressureforthetestdurationspecifiedinA.2.2.3.4. Examinetheobturatorforleaktightness.SeeNOTE4.Butterflyvalve 1. Filltheupstreamvalvecavitywiththetestfl
49、uid.2. Movetheobturatortotheclosedposition.3. ApplythetestpressurespecifiedinA.2.2.2tothediscinthedirectioninwhichtheobturatorisweakerwiththeothersideopentoatmosphere,andmaintainthetestpressureforthetestdurationspecifiedinA.2.2.3.Testdoublediscbutterflyvalvesbyintroducingthetestpressurebetweenthedis
50、csviaashelltapping.4. Examinetheobturatorforleaktightness.SeeNOTE4.Checkvalve 1. Fillthedownstreamvalvecavityincluding,ifappropriate,thecovercavitywiththetestfluid.2. ApplythetestpressurespecifiedinA.2.2.2inthedirectiontendingtoclosetheobturatorwiththeothersideopentoatmosphereandmaintainthetestpress
