BS EN 13090-2000 Means for resealing threaded joints of gas pipework in buildings《建筑物内气体管道的螺纹接头重新密封方法》.pdf

1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN 13090:2000 The Euro

2、pean Standard EN 13090:2000 has the status of a British Standard ICS 23.040.80; 91.140.40 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Means for resealing threaded joints of gas pipework in buildingsThis British Standard, having been prepared under the direction of the Engi

3、neering Sector Committee, was published under the authority of the Standards Committee and comes into effect on 15 December 2000 BSI 12-2000 ISBN 0 580 36751 7 BS EN 13090:2000 Amendments issued since publication Amd. No. Date Comments National foreword This British Standard is the official English

4、language version of EN 13090:2000. The UK participation in its preparation was entrusted to Technical Committee PSE/2, Gaskets, which has the responsibility to: aid enquirers to understand the text; present to the responsible European committee any enquiries on the interpretation, or proposals for c

5、hange, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. 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

6、 European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the

7、 necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, the EN title pag

8、e, pages 2 to 13 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued.EUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN13090 October2000 ICS23.040.80 Englishversion Meansforresealingthreadedjointsofgaspipeworkinbuildings Matriauxpourlartan

9、chitdesraccordsfiletsdes tuyauteriesdegazdanslesbtiments MittelzumnachtrglichenAbdichtenvon GewindeverbindungeninGasLeitungsinstallationenin Gebuden ThisEuropeanStandardwasapprovedbyCENon25September2000. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgiv

10、ingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheCentralSecretariatortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninan

11、yotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheCentralSecretariathasthesamestatusast heofficial versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece, Iceland,Ireland,Italy,Luxembou

12、rg,Netherlands,Norway,Portugal,Spain,Sweden,SwitzerlandandUnitedKingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG CentralSecretariat:ruedeStassart,36B1050Brussels 2000CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalM

13、embers. Ref.No.EN13090:2000EPage2 EN13090:2000 Contents Page Contents 2 Foreword3 Introduction.3 1Scope 4 2NormativeReferences. 4 3Termsanddefinitions .4 4Requirements. 5 4.1Requirementstobemetbythesealantasreceived .5 4.1.1Effectonmetals . 5 4.1.2Effectonseals .5 4.1.3Effectoncombustionbehaviouroff

14、uelgases. 5 4.2Requirementstobemetbythesealantafterassembly5 4.2.1Sealingproperties . .5 4.2.1.1Effectofgascondensateonsealants. 5 4.2.1.2Effectofvibration 5 4.2.2Disassemblyofjoints .5 5Testmaterialanddocumentation 5 5.1Testmaterial .5 5.2Documentation 5 6Testmethods. .6 6.1Testofsealantsasreceived

15、 . 6 6.1.1Testofcorrosiveness .6 6.1.2Testofeffectonseals 6 6.1.3Testofeffectonthecombustionbehaviouroffuelgases .6 6.2Testofsealantsintestassemblies .7 6.2.1Testofsealingproperties. 7 6.2.1.1Preparationoftestassemblies . 7 6.2.1.2Sealing 8 6.2.1.3Soundnesstest . 9 6.2.1.4Agingtest . .10 6.2.1.5Test

16、ofresistanceagainstgascondensate 10 6.2.1.6Testofvibrationresistance. 10 6.2.2Dismantling 10 7Marking .10 AnnexA(informative)Adeviations . .13Page3 EN13090:2000 Foreword ThisEuropeanStandardhasbeenpreparedbyTechnicalCommitteeCEN/TC108“Sealingmaterials and lubricantsforgasappliancesandgasequipment“,t

17、hesecretariatofwhichisheldbyNEN. ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublicationofan identicaltextorbyendorsement,atthelatestbyApril2001,andconflictingnationalstandardsshallbe withdrawnatthelatestbyApril2001. AnnexAisinformative. AccordingtotheCEN/CENELECInternalRegu

18、lations,thenationalstandardsorganizationsofthe followingcountriesareboundtoimplementthisEuropeanStandard:Austria,Belgium,CzechRepublic, Denmark,Finland,France,Germany,Greece,Iceland,Ireland,Italy,Luxembourg,Netherlands, Norway,Portugal,Spain,Sweden,SwitzerlandandtheUnitedKingdom. Introduction Thread

19、edjointsofoldinteriorgaspipingsystemsmaybecomeunsound,because,forexample,in formertimesparallel/parallelthreadedjointsweresealedbytheapplicationofnaturalfibers(e.g.hemp, flax)incombinationwithunsuitablesealingmaterials.Thesejointsweresoundaslongasthe distributedgaswaswetandthuskeptthenaturalfibersin

20、aswollencondition.However,thejoints begantoleakwhensubsequentlydrygaswasintroducedandthefibresconsequentlyshrank. SealantsspecifiedinthisEuropeanStandardaresuitableforsealingleakythreadedjoints,butnot corrodedorbrokenpipes.Itisthereforerecommendedthattheleakagerateofthegasinstallation, underdistribu

21、tionpressure,isdeterminedpriortoresealing.Iftheleakagerateisgreaterthane.g.5l/h thenthisisnormallyanindicationofcorrosionorotherseverepipedamage.Thisshouldberepaired beforetheinstallationistreatedwiththesealant. Generalrecommendationsforthedesign,construction,testing,operation,andmaintenanceofgas pi

22、peworkinbuildingsarespecifiedinEN1775. AllpressuresreferredtointhisStandardaregaugepressures.Page4 EN13090:2000 1 Scope ThisEuropeanStandardspecifiesthepropertiesandthetestmethodsofsealantsusedtoreseal threadedjointsofmetallicgaspipeworkinbuildingsoperatedatamaximumallowedoperating pressureof100mbar

23、(suchsealantshereafterarereferredtoas“sealants“). NoteGaspipeworkinbuildingsisinaccordancewithEN1775thepipeworkbetweenthepointof deliveryandtheinletconnectiontothegasappliance. ThisStandardisapplicabletosealantsforthreadedjointsofmetallicgaspipework,inbuildings, carryingfuelgasesofthe1 st family(tow

24、ngas),2 nd family(naturalgas),and3 rd family(liquefied petroleumgases(LPG)(seeEN437)butnotincludingliquefiedpetroleumgasesintheliquidstate. SealingmaterialsfortheinstallationofmetallicthreadedjointsarespecifiedinEN751. 2 NormativeReferences ThisEuropeanStandardincorporatesbydatedorundatedreference,p

25、rovisionsfromother publications.Thesenormativereferencesarecitedattheappropriateplacesinthetextandthe publicationsarelistedhereafter.Fordatedreferences,subsequentamendmentstoorrevisionsofany ofthesepublicationsapplytothisEuropeanStandardonlywhenincorporatedinitbyamendmentor revision.Forundatedrefere

26、ncesthelatesteditionofthepublicationreferredtoapplies(including amendments). EN437 TestgasesTestpressuresAppliancecategories EN549:1994 Rubbermaterialsforsealsanddiaphragmsforgasappliancesandgas equipment EN7511 Sealingmaterialsformetallicthreadedjointsincontactwith1 st ,2 nd ,and 3 rd familygases,a

27、ndhotwater Part1: Anaerobicjointingcompounds EN7512 Sealingmaterialsformetallicthreadedjointsincontactwith1 st ,2 nd ,and 3 rd familygases,andhotwater Part2: Nonhardeningjointingcompounds EN7513 Sealingmaterialsformetallicthreadedjointsincontactwith1 st ,2 nd ,and 3 rd familygases,andhotwater Part3:

28、 UnsinteredPTFEtapes EN1775 GassuplyGaspipeworkforbuildingsMaximumoperationpressure 5barFunctionalrecommendations EN10242 Threadedpipefittinginmalleablecastiron prEN10255:1996 Nonalloysteeltubessuitableforweldingorthreading ISO71 Pipethreadswherepressuretightjointsaremadeonthe threadsPart1: Dimensio

29、ns,tolerancesanddesignation 3 Termsanddefinitions FordefinitionsconcerninggaspipeworkinbuildingsreferenceismadetoEN1775.Page5 EN13090:2000 4 Requirements 4.1 Requirementstobemetbythesealantasreceived 4.1.1 Effectonmetals Sealantsshallnotcauseanycorrosionofanymetalpipematerial. 4.1.2 Effectonseals Se

30、alantsshallnotimpairelastomersealsaccordingtoEN549:1994.Thisrequirementisnotrelevantfor anaerobicsealants. 4.1.3 Effectoncombustionbehaviouroffuelgases Sealantsshallnotimpairthecombustionoffuelgasesingasappliancesortheoperationofsafety, controlormeteringequipment. 4.2 Requirementstobemetbythesealant

31、afterassembly 4.2.1 Sealingproperties Gaspipingsystemssealedbysealantsshallbesoundundertheconditionslaiddownin6.2.1. 4.2.1.1 Effectofgascondensateonsealants Thesealingpropertiesofsealantsshallnotbeimpairedbygascondensates. 4.2.1.2 Effectofvibration Thesealingpropertiesofsealantsshallnotbeimpairedbyt

32、heeffectofvibrations. 4.2.2 Disassemblyofjoints Itshallbepossibletodisassembleresealedjoints,usingcommercialtools,withoutdamaginganyof thethreads. 5 Testmaterialanddocumentation 5.1 Testmaterial Themanufacturerorsuppliershallsubmitsufficientquantities(about10l)ofthesealanttothetest laboratory. 5.2 D

33、ocumentation Thefollowingdocumentsshallbesubmittedtothetestlaboratory: a)Descriptionofthesealant. b)Applicationandhandlinginstructionsincludingpreparatoryproceduressuchassoundnesstest, disconnectionofgasmetersandappliances,cleaningofthepipework;applicationofthesealantby e.g.thefilling,sprayingorwick

34、ingmethod,removalofsurplussealant;finalsoundnesstestandre establishmentofthegassupply. c)Appropriatehealthandsafetydatasheetsconformingtotherequirementsofthecountryofuse.Page6 EN13090:2000 6 Testmethods 6.1 Testofsealantsasreceived 6.1.1 Testofcorrosiveness Thecorrosivenessofthesealantshallbetestedu

35、singcopper,copperzincalloy,zincandlowcarbon steelstripseach75mmlong,13mmwideandnotlessthan0,5mmthick.Mechanicallyabradeboth facesandtheedgesofeachstriptoobtainauniformfinishfreefromdefects.Polisheachstripwith emerypaper(gradeNo.400)andthencleanwithsuccessivepadsofcottonwooluntilafreshpad remainsunso

36、iledafteruse.Washeachstripwithacetoneandallowittodry.Usecleanforcepsforall furtherhandlingofthestrips. Coat50mmofonesideofeachoftwoteststripsofthesamemetalwithsealant.Layonestrip,treated sideup,onahorizontalsurfaceandplacetheotherwithanoverlappingofthecoated50mmdirectly ontop,treatedsidedown.Holdinp

37、ositionwitha(20010)gweight.Storetheteststripsfor (336 2)hat(20 5)Candthenseparatethemifnecessaryafterwarmingup.Thecleaned surfacesofthetest stripsshallshownopittingduetotheeffectofthesealant,butchangesinthecolor andcloudingofthepolishedsurfacesshallbeacceptable. 6.1.2 Testofeffectonseals Theeffectof

38、thesealantonsealsusedforinteriorgaspipeworkshallbetestedinaccordancewith7.6 ofEN549:1994byassessingtheswellingcausedbythesealant (instead ofpentane)andthe behaviouratsubsequentdryingofspecimensmadefromnitrilebutadienerubber(NBR)withanIRHD hardnessof755whichsatisfytherequirementslaiddowninEN549:1994.

39、Theincreaseinmass duetoswellingshallnotexceed10%andthechangeinhardnessshallnotexceed10IRHD.The decreaseinmassafterdryingshallnotbeinexcessof5%andthechangeinhardnessshallnotbein excessof10IRHD. Thistestisnotrelevantforanaerobicsealants. 6.1.3 Testofeffectonthecombustionbehaviouroffuelgases Totestthee

40、ffectofthesealantonthecombustionbehaviouroffuelgases,100mlofsealantshallbe filledintoaWoulfbottlewithacapacityofapprox.500ml.Thegasinletpipeshallrunthroughthe centralbottletubeandshallend(51)mmabovetheliquidlevel.Thegasoutletpipeshallendat least50mmabovetheliquidlevel.Airshallberemovedfromthebottleb

41、ypurgingthebottlewith naturalgas.Followingpurging,thepilotofaconventionalinstantaneouswaterheaterandathermo electricflamesupervisiondeviceshallbeconnectedtotheoutletusingashortglass,metalorPTFE tubingandshallbeadjustedproperly. Thelengthofthepilotflameshallthenbemeasuredatagivenpressure.Following72h

42、ofcontinuous operationat(20 5)C,thefunctionofthepilotandthethermoelectricflamesupervisiondeviceshall betestedandthelengthofthepilotflameshallbemeasured.Furtherthenozzle,theburner,the temperaturesensorandthethermoelectricflamesupervisiondeviceshallbeexaminedfordeposits.Page7 EN13090:2000 6.2 Testofse

43、alantsintestassemblies 6.2.1 Testofsealingproperties 6.2.1.1 Preparationoftestassemblies Thetestshallbeperformedontestassembliespreparedfromnewunusedthreadedjoints.Theparts specifiedintable1arerequiredforthepreparationofthetestassemblies. Table1Partslistfortestassemblies Quantity Part Thread Designation 16 Threadpipe R1 1 / 2 prEN10255:1996DN40welded, mediumseries; length: 100mm 14 Socket Rp1 1 / 2 EN10242 4 Socket,reducing Rp1 1 / 2 x