DIN 2605-1 钢制对焊管件-弯头、弯管

Steelbutt-weldingpipefittingsElbowsandbendswithreducedpressurefactorFormstückezumEinschweiBen;Rohrbogen;verminderterAusnutzungsgradDIN2605Part1SupersedesDIN2605,September1962edition,andDIN2606,July1965edition.~~-BeuthVerlagGmbH,Berlin,hastheexclusiverightofsaleforGermanStandards(DIN-NormenJ.DIN2605Pari1€3PricegroupInkeepingwithcurrentpracticeinstandardspublishedbytheInternationalOrganizationforStandardization(/SO),acommahasbeenusedthroughoutasthedecimalmarker.Dimensionsinmm1FieldofapplicationThisstandardspecifiesseamlessandweldedsteelelbowsandbendsthatareintendedtobebuttweldedtopipes.Althoughthewallthicknessesspecifiedcorrespondtothoseofthepipes,thesefittingsdonotpermitoperationatthesameinternalpressureasthepipeweldedon,¡.e.theyhaveareducedpressurefactor(cf.table1andclause5).2Typesanddesignation45"elbow90°elbow180'bendristobecalculatedasfollows:type2:r=1,O*datype3:r-1,5.datype5:r-2,5-datype1O:r=5,O.datype20:r-lO,O-daDesignationofatype3(3)seamless(S)90°(90)elbowinaccordancewiththisstandard(l),wheredaisequalto88,9mmandsisequalto2.3mrn,madefrommaterialbelongingtomaterialgroupGasinDIN2609(G):ElbowDIN2605-1-90-3-88,9X2,3S-GContinuedonpage2to6~.SalesNo.010808.91ReproducedbyIHSunderlicensewithDINENGLicenseprovidedbyI.H.S.GermanyForInternalUseOnlyPage2DIN2605Part13DimensionsTable1.DimemionsandpressurefactorNominalsizeDN1520253240506580100125ÏMaximumpressurefactor,Pipeoutsidediam-eter,4’)21,326,9339742,44893m376,l8899114,3139,7-e5597685626986557186547187547387587587939657758793965976889396617788939662778893976277889397r17,528,O42,525,O29,O57.525.038.072,532,O48.092,538,o57,O107.551761352545086395175318635761142053817621021522705081016127190330635127015222939076215241235374-855967-865270-865270-86518756749296557487-9296577587-9396607688-889396617788-8872-87-5475a56068865370865270865287567493965574879296577587939660769396617772a72,O2,32,62,62,62,92,93,23,64,O45343,23,23,23.64,O455,O5,66,36,37,l1Wallthickness,s,forseriesasapercentage,forseriesb4577585-28385371218235616886394371235235235235---1012241016301320381624455470864256904,O-4,o547187536911453738757758793965675879296--62821328110616528453821325610521023510202.02351020263973132263324785158316426311221042110213321335667312115925042580615921032756510732.3235102058759396a723-2.6235102061768893968.8235102061778893971972604007051340537913726352610,o23510206177879397237313474846160863951623166311501168,31l,o1)Thepipeoutsidediametersgivenhavebeentakenfromseries1inIS04200.2)Thewallthicknessesspecifiedforseries2,fornominalsizesuptoDN1000,areinaccordancewiththenormalwallthickness9dashinaboxindicatesasizethathasnotbeenstandardized.seriesgiveninDIN2458.ReproducedbyIHSunderlicensewithDINENGLicenseprovidedbyI.H.S.GermanyForInternalUseOnlyDIN2605Part1Page35112,5-Table1(continued).62778793976278-8893976378-8893976679-8894976679-8894976679-8894976679-8894976679-8894976275-8388916174828790-Pipeoutsidediam-eter,da'1-219,l4563637878888893939797637888-9397637888-9397668088-9497668088-9497----Maximumpressurefactor,I2033055101016203225438165012702540305457775152430483565338501778355640661097020324064457686112222864572508762124525405080-b-3134146201126214222)435,O5.65,66,36,36,36,37.18,O7e-8412621142184236,36,37,l8,û8,8101112,512,512,56109141525305061O071110671778355571108131219203340658130------Wallthickness,s,forseriesIrasapercentage,forseriesNominalsizeDN2002503003!N400450500600700800TYP6-23510201-2.923627887939762788893976378889397--627887939763788893976378889397-1051582695261052235102039151878714072677467619937168632105337111028195637342,9273323,Q23510201261893216311263148221352737147319023510206679889497667988949711,o-12,5--66798894976679889497-66808894976680889497-6108131173223542671682534028421683235102023510206869141350251548017621016150027945334189284465947189421o31651610522104235102066798894976680889497508235102023510202351020---6679889497868088949791412191830335564052533796321263252761O71181361738186896073818689--60728185886072818588-106614222133391174662954427371473294512201626243944728537-33750584216843368asizethathasnotbeenstandardized.ReproducedbyIHSunderlicensewithDINENGLicenseprovidedbyI.H.S.GermanyForInternalUseOnlyPage4DIN2605Part1Table1(concluded).Maximumpressurefactor,asapercentage,forseriesPipeoutsidediam-eter,da1)rWallthickness,s,forseries22)101012,512,512.5312,512,5---NominalsizeDNbe11617482879061748287906174828790---26072808588607280858860728185887--235102023510202351020--379568947189337864216311052210442081371182927425027959715242032304855881066818302440366067101281O900lo0012009141016~122050575812632527505323510206174828790607281858821302840426078101491058888214712941588214001420162023510206072818588-2430324048608910170106711007167833556710-61748287901600:or1)and2),seepage2.Ldashinaboxindicatesasizethathasnotbeenstandardized.ReproducedbyIHSunderlicensewithDINENGLicenseprovidedbyI.H.S.GermanyForInternalUseOnlyDIN2605Pari1Page5NominalsizeDN15tO6580to100125to200250300to4%500to600Table2belowspecifiesoutsidediametersforDIN2448orDIN2458pipeswhicharestillinuse,butwhichdeviatefromthosegivenintable1.Elbowsandbendsforsuchpipesmaystillbeordered,providedtheycomplywithallotherrelevantrequirementsspecifiedhere.Fittingsinaccordancewithtable2shouldnotbeusedfornewdesigns.Table2.Elbowandbenddlmen8iions(notsuitablefornewdesigns)Limitdeviationsfordimensionbb2b45Oelbow90°elbow180°bendI6,Of2,5f8,Ok7,Of3,Oi9,0f8,5f3,5ir10.0f9,5f4,Of14,Of12,ok5,Of14,Oi16,Of14,5f6.0700800ormoreTobeagreed.f19,of8,OWallthicknesssrb27.552,5406548775183641o1731208814010015633,562,53567,52.64582,55197.53)Thelimitdeviationsspecifiedforbrelatetotypes2,3and5.thesefortypes10and20beingsubjecttoagree-ment.4)Dimensionbtobemeasuredatthefittingendedges.2.972127,511417482,5142,5659216077,5107,5190~~5PressurefactoranddesignassumptionsThepressurefactorisdefinedastheratioofpermissibleworkingpressureoftheelboworbendtothatoftheconnect-ingpipe(theformerbeinglowerthanthelatter),andisexpressedasapercentage.Thewallthicknessesoffittingshavebeendesignedsothatthefittingscanaccommodatethesamepressureastheconnectingpipe,inaccordancewithTechnischeRegelfürDampfkessel(Codeofpracticeforsteamboilers)TRD301,thefollowingassumptionsalsohav-ingbeenmade:a)lowerlimitdeviationsforpipewallthicknessasfollows:fordaupto610mm:-12,5%;ford,greaterthan610mmandsupto10mm:-0,35mm;sexceeding10mm:-0,5mm;b)lowerlimitdeviationsforfittingwallthickness,asgivenintable3:c)identicalmaterial:d)identicalweldingfactorforlongitudinalwelds:e)identicaloutsidediameters;f)noallowanceforcorrosion.1-001271951191492313.295133,5237.51461842883.6154196306100142,5252.5117,5175300125181312.5181238364192247379142,5215357.52192914344.56OtherwallthicknessesElbowsandbendswithwallthicknessesotherthanthosespecifiedintable1mayalsobeorderedinaccordancewiththisstandard.1502163752302944544.51702504301802704552593405192773675523754627027WeldingendpreparationWhererequired,theinsideofweldingendsmaybebevelledtoanangleof15OtoIS0,ortheoutsidetoanangleof27'to30°,relativetothefittingaxis.8TechnicaldeliveryconditionsSeeDIN2609fortechnicaldeliveryconditionsforelbowsandbendsascoveredhere.23534058063ReproducedbyIHSunderlicensewithDINENGLicenseprovidedbyI.H.S.GermanyForInternalUseOnlyPage6DIN2605Part1StandardsandotherdocumentsrefenedtoDIN2448Seamlesssteelpipesandtubes;dimensionsandmassperunitlengthDIN2458Weldedsteelpipesandtubes;dimensionsandmassDIN2609Steelbutt-weldingpipefittings;technicaldeliveryconditionsIS04200Plainendsteeltubes,weldedandseamless;generaltablesofdimensionsandmassesperunitlengthTRD301')ZyhderschalenunterinneremUberdruck(Cylindricalshellssubjecttointernalpressure)OtherrelevantstandardDIN2605Part2Steelbutt-weldingpipefittings:elbowsandbendsforuseatfullservicepressurePreviouseditionsDIN2605:11.53.09.62;DIN2606:07.65.AmendmentsThefollowingamendmentshavebeenmadetotheSeptember1962editionofDIN2605andtheJuly1965editionofDIN2606.a)DIN2605andDIN2606havebeencombinedtoformasinglestandard.b)ThescopeofthestandardhasbeenextendedtocoverfittingsuptosizeDN1600.c)Fittingtypes2,lOand20and45Obendsarenowincluded.InternationalPatentClassificationB23KF16L43/00*)ObtainablefromBeuthVerlagGmbH,BurggrafenstraBe6,D-1000Berlin30.ReproducedbyIHSunderlicensewithDINENGLicenseprovidedbyI.H.S.GermanyForInternalUseOnly