BSEN15698-1:2009ICS23.040.10NOCOPYINGWITHOUTBSIPERMISSIONEXCEPTASPERMITTEDBYCOPYRIGHTLAWBRITISHSTANDARDDistrictheatingpipes—PreinsulatedbondedtwinpipesystemsfordirectlyburiedhotwaternetworksPart1:Twinpipeassemblyofsteelservicepipe,polyurethanethermalinsulationandoutercasingofpolyethyleneThisBritishStandardwaspublishedundertheauthorityoftheStandardsPolicyandStrategyCommitteeon31January2009©BSI2009ISBN9780580589256Amendments/corrigendaissuedsincepublicationDateCommentsBSEN15698-1:2009NationalforewordThisBritishStandardistheUKimplementationofEN15698-1:2009.TheUKparticipationinitspreparationwasentrustedtoTechnicalCommitteeRHE/9,Insulatedundergroundpipelines.Alistoforganizationsrepresentedonthiscommitteecanbeobtainedonrequesttoitssecretary.Thispublicationdoesnotpurporttoincludeallthenecessaryprovisionsofacontract.Usersareresponsibleforitscorrectapplication.CompliancewithaBritishStandardcannotconferimmunityfromlegalobligations.BSEN15698-1:2009EUROPEANSTANDARDNORMEEUROPÉENNEEUROPÄISCHENORMEN15698-1January2009ICS23.040.10EnglishVersionDistrictheatingpipes-Preinsulatedbondedtwinpipesystemsfordirectlyburiedhotwaternetworks-Part1:Twinpipeassemblyofsteelservicepipe,polyurethanethermalinsulationandoutercasingofpolyethyleneTuyauxdechauffageurbain-Systèmesbloquésdebitubespréisoléspourlesréseauxd'eauchaudeenterrésdirectement-Partie1:Assemblagedebitubespourtubedeserviceenacier,isolationthermiqueenpolyuréthaneettubedeprotectionenpolyéthylèneFernwärmerohre-WerkmäßiggedämmteVerbundmanteldoppelrohrefürdirekterdverlegteFernwärmenetze-Teil1:Verbund-DoppelrohrsystembestehendauszweiStahl-Mediumrohren,Polyurethan-WärmedämmungundeinemAußenmantelausPolyethylenThisEuropeanStandardwasapprovedbyCENon5December2008.CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEuropeanStandardthestatusofanationalstandardwithoutanyalteration.Up-to-datelistsandbibliographicalreferencesconcerningsuchnationalstandardsmaybeobtainedonapplicationtotheCENManagementCentreortoanyCENmember.ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).AversioninanyotherlanguagemadebytranslationundertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheCENManagementCentrehasthesamestatusastheofficialversions.CENmembersarethenationalstandardsbodiesofAustria,Belgium,Bulgaria,Cyprus,CzechRepublic,Denmark,Estonia,Finland,France,Germany,Greece,Hungary,Iceland,Ireland,Italy,Latvia,Lithuania,Luxembourg,Malta,Netherlands,Norway,Poland,Portugal,Romania,Slovakia,Slovenia,Spain,Sweden,SwitzerlandandUnitedKingdom.EUROPEANCOMMITTEEFORSTANDARDIZATIONCOMITÉEUROPÉENDENORMALISATIONEUROPÄISCHESKOMITEEFÜRNORMUNGManagementCentre:ruedeStassart,36B-1050Brussels©2009CENAllrightsofexploitationinanyformandbyanymeansreservedworldwideforCENnationalMembers.Ref.No.EN15698-1:2009:EBSEN15698-1:2009EN15698-1:2009(E)2ContentspageForeword......................................................................................................................................................................3Introduction.................................................................................................................................................................41Scope..............................................................................................................................................................52Normativereferences....................................................................................................................................53Termsanddefinitions...................................................................................................................................54Requirements.................................................................................................................................................54.1General............................................................................................................................................................54.2Steelservicepipe...........................................................................................................................................54.3Material,casingpropertiesanddimensions...............................................................................................64.4Polyurethanerigidfoaminsulation(PUR)..................................................................................................64.5Pipeassembly................................................................................................................................................64.5.1Endalignmentofforwardandreturnservicepipes...................................................................................64.5.2Distancebetweenforwardandreturnservicepipes.................................................................................64.5.3Twistingofservicepipes...............................................................................................................