DNV has presented the new DNV-ST-F101 Edition 2021

As a result of the continuous improvement of submarine pipeline systems design, a new version of the DNVGL-ST-F101 has been released by DNV ... Skiptocontent Search Close Home Services Academy R&D Showcases Catalogs GlobalReach September1,2021 3:57pm NoComments DNVhaspresentedthenewDNV-ST-F101Edition2021 Asaresultofthecontinuousimprovementofsubmarinepipelinesystemsdesign,anewversionoftheDNVGL-ST-F101hasbeenreleasedbyDNVtosupersedetheOctober2017edition.ThefirstvisiblechangeisthenewacronymofthestandardduetotherebrandingofDNVGLtoDNV.Thispopularstandardhasbeenimprovedoverdecadesofwork,mainlyduetothecontributionsofJointIndustryProjects(JIP’s)andDNVinternalexperts,allowingtosatisfythedemandsofthesubmarinefluidstransportationindustrysuchasincreasedoperationalcomplexity,morestringentgovernmentregulatoryrequirements,useofnewandimprovedtechnologiesandmaterialsandchangingenvironmentalconditionsamongothers.ThenewrevisionincorporatesrecentknowledgefromtheLinedandCladJIPandtheresearchonLocalBucklingperformedbytheEuropeanPipelineResearchGroup(EPRG).Mainchangesbytopic:Categorizationoffluids,CO2ismandatorilyclassifiedwithinCategoryE.Loadeffectcalculations,NewequationtoobtaintheeffectiveaxialforceinatotallyrestrainedlinedorcladpipeinthelinearelasticstressrangeconsideringthepropertiesoftheCRAmaterialhasbeendevelopedtoobtainmoreaccurateresults.Pressurecontainment(bursting),Thefrequency-dependentpartialfactorsforpipelineswhereinternalpressuremayaccidentallyexceedsuchasnotfullyratedpipelines(e.g.,HIPPS)shallbedevelopedfollowingthereliabilityanalysisstatedinthestandard.Strengthprovidedbyliner/cladmaterialsmaybeconsideredwithinthepressurecontainmentcalculationsbyemployingthenewpressurecontainmentresistanceequationthatconsiderstheCRAmaterialproperties.Thisnewapproachbringsthepossibilityofreducingthepipewallthicknessofthesystem.LocalBuckling–combinedloadingcriteriaLimitstateshavebeenupdatedduetothestrengthcontributionoftheCRAmaterialinlined/cladpipesresultinginahigherutilizationofthepipeline.CorrosionresistantalloylinepipePittingcorrosiontestrequirementchangefromonlynecessaryfor25CrduplexstainlesssteeltoduplexstainlesssteelwithPRE≥40.AppendixCWeldingUpdatesonqualificationofweldingprocedures. Shareonfacebook Facebook Shareontwitter Twitter Shareonlinkedin LinkedIn NORWAYDokkvegen10–3920Porsgrunn,NorwayEmail:[email protected]:004790185676 UNITEDSTATESOFAMERICA2311MidLn Ste.908Houston,Tx77027Email:[email protected]:0018325736168 MEXICOAv.F.C.deCuernavaca214,Ofc.310.Polanco,11550.MexicoCity.Email:[email protected]:005218113723665 Linkedin-in Facebook-f Instagram Youtube PrivacyPolicy