EN 1514-7-2004 en Flanges and their joints Gaskets for PN-designated flanges Part 7 Covered metal jacketed gaskets for use with steel flanges《法兰及其连接件 PN标示法兰用垫圈的尺寸 第7部分 钢法兰用涂覆金属的套层垫.pdf

1、BRITISH STANDARD BS EN 1514-7:2004 Flanges and their joints Gaskets for PN-designated flanges Part 7: Covered metal jacketed gaskets for use with steel flanges The European Standard EN 1514-7:2004 has the status of a British Standard ICS 23.040.80 BS EN 1514-7:2004 This British Standard was publishe

2、d under the authority of the Standards Policy and Strategy Committee on 26 May 2004 BSI 26 May 2004 ISBN 0 580 43820 1 National foreword This British Standard is the official English language version of EN 1514-7:2004. The UK participation in its preparation was entrusted to Technical Committee PSE/

3、2, Jointing materials and compounds, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be f

4、ound 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 include all the necessary provisions of a contract. Users are re

5、sponsible 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 enquiries on the interpretation, or proposals for change, and kee

6、p the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 18, an inside back cover and a back cover. The BSI copyright notice display

7、ed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN15147 May2004 ICS23.040.80 Englishversion FlangesandtheirjointsGasketsforPNdesignatedflanges Part7:Coveredmetaljacketedgasketsfo

8、rusewithsteel flanges BridesetleursassemblagesJointspourlesbrides dsignesPNPartie7:Jointsmtalloplastiquesrevtus pourutilisationavecdesbridesenacier FlanscheundihreVerbindungenDichtungenfrFlansche mitPNBezeichnungTeil7:MetallummantelteDichtungen mitAuflagefrStahlflansche ThisEuropeanStandardwasapprov

9、edbyCENon17March2004. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheCen

10、tralSecretariatortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheCentralSecretariathasthesamestatusast heofficial versions. CENmembersarethenation

11、alstandardsbodiesofAustria,Belgium,Cyprus,CzechRepublic,Denmark,Estonia,Finland,France, Germany,Greece,Hungary,Iceland,Ireland,Italy,Latvia,Lithuania,Luxembourg,Malta,Netherlands,Norway,Poland,Portugal, Slovakia, Slovenia,Spain,Sweden,SwitzerlandandUnitedKingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION

12、COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2004CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN15147:2004:EEN15147:2004(E) 2 Contents page Foreword. 3 1 Scope . 4 2 Normativereferences . 4

13、3 Termsanddefinitions. 4 4 Designations 4 4.1 RangeofPNdesignations . 4 4.2 RangeofDN(nominalsizes) . 5 4.3 Gaskettypes 5 4.4 Informationtobesuppliedbythepurchaser. 5 5 Constructionaldetails 5 5.1 Generaldetails . . 5 5.2 Metaljacket 7 5.2.1 Metaljacketdescription . 7 5.2.2 Metaljacketmaterial. 7 5.

14、3 Softfiller. 7 5.3.1 Softfillerdescription . . 7 5.3.2 Softfillermaterial 7 5.4 Coveringlayers . 8 5.4.1 Coveringlayersdescription. 8 5.4.2 Coveringlayersmaterial 8 5.5 Innerandouterrings . . 8 5.5.1 Innerandouterringsdescription. . 8 5.5.2 Innerandouterringsmaterial . 9 5.6 Attachmentoffacing 9 5.

15、6.1 Methodsofattachment. 9 5.6.2 Degreasingofcore . . 9 5.6.3 Numberofjoins. 9 5.6.4 Excessivefacing . 9 5.7 Integrityoffacingattachment 9 5.8 Constructioncharacteristicsdetails . 9 6 Dimensions 10 7 Marking 13 8 Colourcoding. . 13 9 Packaging 13 AnnexA (informative) Informationtobesuppliedbythepurc

16、haser. 15 AnnexB (informative) Adeviation. 16 Bibliography . 18EN15147:2004(E) 3 Foreword Thisdocument(EN15147:2004)hasbeenpreparedbyTechnicalCommitteeCEN/TC74“Flangesandtheir joints“,thesecretariatofwhichisheldbyDIN. ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublicationof

17、anidentical textorbyendorsement,atthelatestbyNovember2004,andconflictingnationalstandardsshallbewithdrawn atthelatestbyNovember2004. TheannexAisinformativeandcontains“Informationtobesuppliedbythepurchaser“. TheannexBisinformativeandcontains“Adeviations“. EN1514consistsof7parts: Part1: Nonmetallicfla

18、tgasketswithorwithoutinserts Part2: Spiralwoundgasketsforusewithsteelflanges Part3: NonmetallicPTFEenvelopegaskets Part4: Corrugated,flatorgroovedmetallicandfilledmetallicgasketsforusewithsteelflanges Part6: Coveredserratedmetalgasketsforusewithsteelflanges Part7: Coveredmetaljacketedgasketsforusewi

19、thsteelflanges Part8: PolymericOringgasketsforgroovedflanges AccordingtotheCEN/CENELECInternalRegulations,thenationalstandardsorganizationsofthefollowing countriesareboundtoimplementthisEuropeanStandard:Austria,Belgium,Cyprus,CzechRepublic,Den mark,Estonia,Finland,France,Germany,Greece,Hungary,Icela

20、nd,Ireland,Italy,Latvia,Lithuania,Luxem bourg,Malta,Netherlands,Norway,Poland,Portugal,Slovakia,Slovenia,Spain,Sweden,Switzerlandand UnitedKingdom.EN15147:2004(E) 4 1Scope ThisEuropeanStandardspecifiestheconstruction,dimensionsandmarkingofcoveredmetaljacketedgas ketsforusewithflangescomplyingwithEN1

21、0921forPN2,5,PN6,PN10,PN16,PN25,PN40,PN63 andPN100uptoandincludingDN900. ThisEuropeanStandarddoesnotextendtocoveredmetaljacketedbasedheatexchangergasketswithpass barsorlargevesselgasketsbut,inthelackofadedicateddocumentforsuchgaskets,theprinciplessetdown maybeappliedtothem. NOTE1 Dimensionsofotherty

22、pesofgasketsforusewithflangestoEN10921,EN10922,EN10923andEN1092 4aregiveninEN15141,EN15142,EN15143,EN15144,EN15146andprEN15148. NOTE2 AnnexAlistsinformationthatshouldbesuppliedbythepurchaserwhenorderinggasketsincircumstances wherethechoiceofthegasketmaterialsappropriatetotheserviceislefttothesupplie

23、r. 2 Normativereferences Notapplicable. 3 Termsanddefinitions ForthepurposesofthisEuropeanStandard,thefollowingtermsanddefinitionsapply. 3.1 coveredmetaljacketedgasket consistsofasealingelementwithorwithoutalocationringwhichmaynotberigidlyfixedtothesealingele ment NOTE Thesealingelementconsistsofame

24、taljacketedcoreandaconformablesealingmaterialadheredtobothtop andlowermetaljacketedcoresurfaces. 3.2 DN seeENISO6708 3.3 PN seeEN1333 4Designations 4.1 RangeofPNdesignations GasketsshallbedesignatedassuitableforusewithoneormoreofthefollowingPNdesignationsofflange: PN2,5 PN16 PN63 PN6 PN25 PN100 PN10

25、 PN40EN15147:2004(E) 5 4.2 RangeofDN(nominalsizes) GasketnominalsizesshallbedesignatedinaccordancewiththerangesspecifiedinTables2and3. Thegeneralprinciplesdescribedinthisstandardshallbeappliedtogasketsoutsideoftherangespecifiedin Tables2and3byagreementbetweensupplierandcustomer . 4.3Gasket types Gas

26、kettypes,asillustratedinFigure1,shallbedesignatedas: TypeSC: Sealingelementselfcentring(usedwithtypeC/DorE/Fflangefacings); TypeC/I: Sealingelementwithinnerring(usedwithtypeC/DorE/Fflangefacings); TypeC/O: Sealingelementwithcentringring(usedwithtypeAorBflangefacings); TypeC/IO: Sealingelementwithcen

27、tringringandinnerring(usedwithtypeAorBflangefacings). ThetypeA,typeB,typeC/D,typeE/FflangefacingsarespecifiedinEN10921. 4.4 Informationtobesuppliedbythepurchaser Theselectionofgasketmaterialsandtypeshouldtakeintoaccountthefluid,theoperatingconditionsandthe propertiesofthegasketmaterialsaswellasthety

28、peofflange.Itisrecommendedthattheselectionofagas ketforanyparticularapplicationismadeinconsultationwiththegasketsupplierwhowilladviseonthemate rialsrequiredforaparticularservice(seeannexA). 5 Constructionaldetails 5.1 Generaldetails Thecoveredmetaljacketedgasketshallconsistofametaljacketedcoreandofc

29、overinglayersstuckonboth sides. Allgasketsizesandclassesshallbedesignedsothatanapplieduniformboltstressof200MPawillcorrectly seatthegasketandoffertherequiredlevelofseal. GasketsforwhichdimensionsarespecifiedshallbeoneofthedesignsshowninFigure1.EN15147:2004(E) 6 a) TypeSC b) TypeC/I c) TypeC/O d) Typ

30、eC/IO Figure1Coveredmetaljacketedgaskets a) gaskets(C/OorC/IOtype)forusewithtypeA(flatface)ortypeB(raisedface)flanges b) gaskets(SCorC/Itype)forusewithtypeC/D(tongue/groove)ortypeE/F(spigot/recess)flanges Key 1 Centringring 2 Sealingelement 3 Innerring Figure2Examplesoftypicalcoveredmetaljacketedgas

31、ketsconfigurationsEN15147:2004(E) 7 5.2Metal jacket 5.2.1 Metaljacketdescription ThetoleranceoftheinsideandtheoutsidediametersofmetaljacketcrosssectionaregiveninTables2and 3. Thicknessofthemetaljacketcrosssectionisdependingonthesoftfillermaterial. 5.2.2 Metaljacketmaterial Thematerialoftheshellofthe

32、metaljacketshallbeselectedtobecompatiblewiththeintendedservice. Table4liststhemostfrequentlyusedmaterials. Theshellofthemetaljacketshallhaveathicknessbetween0,3mmand0,5mm. 5.3Soft filler 5.3.1 Softfillerdescription Thethicknessofthesoftfillermaterialshallbeselectedtoensure: agoodcompressibilityandel

33、asticrecoveryofthegasketinordertocompensateasmuchaspossiblethe flatnessdefaultsandtorespondtovariationsduetooperatingconditions; afinalthickness(withcoveringlayers)adaptedwiththelengthofthepipingline(aftertightening); compatibilitywiththeassemblyspecification(spigotandrecessortongueandgroove,metalto

34、metal contact,.). 5.3.2 Softfillermaterial Thefillermaterialshallbeselectedinaccordancewiththeintendedservicebutasguidance,satisfactoryme chanicalbehaviourisusuallyobtainedwiththefollowingsoftfillermaterials: Suitableexpandedgraphiteis: 98 %purity,ashcontentmax.2 %,sulphurcontentmax.1 000 10 6 (ppm)

35、,halogencontents max.50 10 6 (ppm); initialdensityshallbe1,0g/cm 3 to1,1g/cm 3 . SuitableexpandedPTFEis: notrecycled100%expandedPTFE; initialdensityshallbe0,7g/cm 3 to0,9g/cm 3 . SuitableFlexibleMicais: PhlogopiteMica(content96%)withSiliconbinder; initialdensityshallbe1,8g/cm 3 to1,9g/cm 3 .EN15147:

36、2004(E) 8 5.4 Coveringlayers 5.4.1 Coveringlayersdescription Thecoveringlayersmaterialandthicknessshouldbeselectedtobecompatible: withtheprocessfluid,andtheoperatingconditions; typeandsurfacefinishoftheflangefacings; flange bolt loading; andtoguarantee: satisfactorylevelofseal; agoodadaptationwithfl

37、angefacingsdefaults. 5.4.2 Coveringlayersmaterial Asaguidance,satisfactoryleaktightnessisusuallyreachedwiththefollowingcoveringmaterials: Suitableexpandedgraphiteis: 98 %purity,ashcontentmax.2 %,sulphurcontentmax.1 000 10 6 (ppm),halogencontents max.50 10 6 (ppm); initialdensityshallbe1,0g/cm 3 to1,

38、1g/cm 3 ; tobefinishedwithanantistickingcoating. SuitableVirginPTFEis: notrecycled100%PTFE; initialdensityshallbe1,6g/cm 3 . SuitableExpandedVermiculiteis: initialdensityshallbe1,2g/cm 3 . NOTE Itwouldbepreferablethatthegasketdoesnotshowanyadhesiontotheflangefacings. 5.5 Innerandouterrings 5.5.1 Inn

39、erandouterringsdescription Theringthicknessdependonthesealingelementthickness. Theringsmaterialandthicknessshouldbeselectedtobecompatible: withtheassemblyconsidered(spigotandrecessortongueandgroove,metaltometalcontact,.); withtheprocessfluid,andtheoperatingconditions;EN15147:2004(E) 9 andtoguarantee

40、: protectionofthesealingelementagainstoverload; sufficientloadtoassuregoodlevelofseal. Thetolerancesoftheinsideandoutsidediametersoftheinnerand/orouterringsaregiveninTables2 and3. 5.5.2 Innerandouterringsmaterial Fortheouterring,carbonsteelmaybeselectedasstandard. Fortheinnerring,thesamematerialoron

41、ewithbettercorrosionresistancethanthatofthemetaljacketshall beselectedasstandard. 5.6 Attachmentoffacing 5.6.1 Methodsofattachment Anappropriatebondingadhesiveshallbeused(maximumchlorinelevelsofbelow50ppm). 5.6.2 Degreasingofcore Whereanadhesiveisusedthecoreshallbedegreasedbeforeuseoftheadhesiveandt

42、heamountofthe adhesiveusedshallbeminimised. 5.6.3 Numberofjoins Incaseofjoinsinthefacingmaterial,theirnumbershallbeminimised. 5.6.4Excessive facing Oncethesealingfaceshavebeenappliedanyexcessmaterialshallberemovedpayingparticularattention thatnoneprotrudesinsideoftheinnerdiameterofthegasket. 5.7 Int

43、egrityoffacingattachment Inordertoensureadequatefixationofthecoverlayertothemetaljacketed,itshallbeensuredthatthemate rialisfreefromanydefectssuchasincisions,cracksorfractures. 5.8 Constructioncharacteristicsdetails Asaguidance,satisfactoryconfigurationofcoveredmetaljacketedgasketsisobtainedasdescribedin Table1.EN15147:2004(E) 10 Table1Constructioncharactericdetails Generalpetrochemical