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2020 PRESSURE VESSEL & HEAT EXCHANGER Design Guidelines & Resources

2020 PRESSURE VESSEL & HEAT EXCHANGER Design Guidelines

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Page 1: 2020 PRESSURE VESSEL & HEAT EXCHANGER Design Guidelines

2020 PRESSURE VESSEL & HEAT EXCHANGER

Design Guidelines & Resources

Page 2: 2020 PRESSURE VESSEL & HEAT EXCHANGER Design Guidelines

TABLE OF CONTENTS

Safety 7 Codes

• CriticalDesignCodestoKnowWhenDesigningPressureVessels

• ASMEBPVCodes

• AspectsofASME’sBPVCodeMaterialStandards

• CodestobeAwareofWhenDesigningforGlobalMarkets

• FrequentCodeChanges&HowToKeepUpWithThem

The Feasibility & Quoting of a Project

• DesignProcessesToKnow

• CreateaCompetitiveAdvantageWhenBiddingaDesign

Design Responsibility

• AvoidMishapsWithProperMaterialSelection

• MaterialStrengthandJointEfficiency

Design Software

• AuthorizedInspectorReviewofSoftwareCalculations

• DesignSoftwareToolsHaveMajorBenefits

• ComprehensiveDesignCatalogsSaveTime

Manufacturing a Pressure Vessel

• PressureTest

• ASMEStampRequiresComplianceforDesign,Manufacturing,&Installation

Design Process

• OptimizeYourDesignProcess

Page 3: 2020 PRESSURE VESSEL & HEAT EXCHANGER Design Guidelines

SAFETY & CODES

What Design Codes are Critical to Be Aware of When Designing Pressure Vessels?

Thepurposeofusingdesigncodesistostandardizerequirementsandtominimizeriskfordesigners,manufacturers,andthoseworkingwithpressurevessels.Assuch,codeshavebeendevelopedovertheyearsusingindustryexperienceandbestpractices.

Therulesdevelopedforthedesigncodesrepresentyearsofexperience.Whenused,thecoderequirementscan:

• Communicatedesignrequirements• Utilizeknow-howandtechnology• Keepequipmentcostslow• Reduceinsurancecosts• Providerulesforthedesignofequipmentadequatefordesignconditionsdeterminedbyothers

THE 12 SECTIONS OF THE ASME BPV CODE

ASME Section I:PowerBoilers

ASME Section VII:OperationPowerBoilers

ASME Section II:Materials ASME Section VIII:PressureVessels

ASME Section III:NuclearFuelContainers

ASME Section IX:Welding&Brazing

ASME Section IV:HeatingBoilers

ASME Section X:FiberRein-forcedPlasticPressureVessels

ASME Section V:Non-DestructiveExamination(NDE)

ASME Section XI:InspectionofNuclearPowerPlants

ASME Section VI:OperationofHeatingBoilers

ASME Section XII:TransportTanks

SECTION VIII: PRESSURE VESSELDivision 1: 15PSIG to 3000 PSIG

Subsection A, General Requirements-PartsUG

Subsection B, Fabrication Requirements-PartsUW-PartsUF-PartsUB

Subsection C, Material Requirements-PartsUCS-PartsUNF-PartsUHA-PartsUCI-PartsUCL-PartsUHT-PartsUIG-PartsULW-PartsULT-PartsUHX(Thispartisforheatexchangers)

Mandatory Appendices

Non-Mandatory Appendices

ASME BPV Codes

TheASMEBoilerandPressureVesselCodesareusedthroughouttheworld,thoughtheyarelesscommonintheUKandtheEU.TheASMEBPVCisstructuredintothe12followingsections.With a focus on pressure vessels, Section VIII is expanded below:

Page 4: 2020 PRESSURE VESSEL & HEAT EXCHANGER Design Guidelines

ASPECTS OF ASME’S BPV CODE MATERIAL STANDARDS

ASMEstandardsformaterialsareanimportantfactorincalculatingadesign’ssafety.MaterialsallowedforconstructionsarelistedinSectionII,PartDandalsointhecodeofconstruction(e.g.SectionVIII,Division1).IfthecodeofconstructiondoesnotincludeamateriallistedinSectionII,D,thematerialcannotbeusedwiththatcodeofconstruction.The following material properties impact pressure vessel design:

ALLOWABLE STRESSForthemostpart,ASMEBPVCallowablestressesaredeterminedbyfourthings:tensilestrength,yieldstrength,time-dependentpropertiesathighertemperatures(creep),andproductform(bolting,weldedpipe,etc.).

Thereisadifferentsafetyfactorfortensile,yield,andcreep.ThesafetyfactorfortensilestrengthvariesbetweentheallowablestresstablesinSectionII,D.ForTable1A,forexample,itis3.5;butforTable5Aitis2.4.

ADDITIONAL MATERIAL PROPERTIESOthermaterialpropertiescanalsobefoundinSectionII,PartD.YieldstrengthcomesfromtheYtables.UltimateStrengthcomesfromtheUtables.ModulusofElasticitycomesfromtheTMtablesandCoefficientsofThermalExpansioncomefromtheTEtables.

Othervalues,suchasdensityandPoisson’sRatiovalues,comefromTablePRD.

What Other Codes Should I Be Aware of When Designing for Global Markets?

Whilethereareseveralrulesdevelopedbycountrieswithrecognizedtechnicalexpertiseinthesubject,thecodethatisthemostinternationallyrecognizedandthemostusedisSectionVIII“PressureVessels”oftheBPVCofASME.OtherthanASME,theothermostcommonlyusedcodesforpressurevesselsarebelow:

1. Europe:EN-1344452. Germany:A.D.MerkblattCode3. UnitedKingdom:PD55004. France:CODAP5. China:GB-150

Page 5: 2020 PRESSURE VESSEL & HEAT EXCHANGER Design Guidelines

HOW DO I KEEP UP WITH FREQUENT CODE CHANGES?

Likemanyotheraspectsofthisindustry,codesareconstantlyadaptingandchanging.

It’simportanttostayabreastofthelatestcodereleasesandtomakesureyou’retrainedonthemaswell.Notbeingcompliantorunawareofnewcodescannegativelyimpactbusinessandresultinunplannedscrapandre-work.

Inordertoreviewchangesincode,youcanlookatASMESectionVIII,Division1underthesummarychanges.Thiswillhighlightanychangesmadeinthecode,aswellasgivethedescriptionofthechanges.Youcanalsolookforthecodeyeardesignatornexttothecode.

Ifyouseeanumber“19,”thatmeansthecodewaschangedintheyear2019,andyoucanlookbackinthesummaryofchangestoseewhatthatchangewasandtherecorditemthatwasusedtomanagethechange.

Ifyouwanttobeontopofcodechangesandnotbecaughtbysurprise,it’shelpfultobeinvolvedinCommitteework.TheASMEBPVCmeetingsarefreeandopentothepublic.Theyofferabalanceofinterestswithdifferentpointsofviewfrominspectors,consultants,designersandfabricators.Thesemeetingsareanexcellentwaytolearnaboutcodechangesbeforetheyarepublishedandbeinvolvedintheprocess.

Below are the Past Code Changes:

• ASME2019CodeChangesincludeUG-44IncorporationofCodeCase2901

• EN13445MayProvideAdvantagesForPressureVesselDesign

• 2019ASMEPressureVesselCodeChanges

• 2019ASMEBPVCSectionIXCodeChangesinaNutshell

• Q42019ASMEUpdate:SGD,SGHTE,&U-2(g)Committees

• Don’tMissTheSectionVIIIChangeToTheSA-105MDMTCurveAssignment

• 2017CodeChanges-ASMESectionVIIIandASMESectionIX

CEI’sengineeringteamsupportsthedesignandweldingindustryservingonvariouscodecommitteesincluding:

• AntonioHowardCertified Associate Welding Inspector (CAWI)

• MichaelClark,PE

• TiradejBunyarattaphantu,Engineer in Training (EIT)

Sometimes,materialpropertieschangeaswell.Tofindmaterialchanges,lookinSectionII,partsCandD,aswellasSectionIX.Thesesectionswillhighlightchangesinmaterial,andyoucanbeassuredyouareabidingbyanynewmaterialrequirements.

Page 6: 2020 PRESSURE VESSEL & HEAT EXCHANGER Design Guidelines

THE FEASIBILITY & QUOTING OF A PROJECT

Sincethefirststepindesigningapieceofpressureequipmentischoosingtheonethatisfitforyourpurpose,it’simportanttocreateastrategybeforedesigningyourpressurevessel.

Thefactorsinfluencingthischoicearethefunctionoftheobject,thelocation,thenatureofthefluidtobestored/processed,thetemperature,theoperatingpressureandtheabilitytostorethevolumeneededbytheprocess.

What Design Processes Should Be Considered?

Sometimes,adesignerneedstoconsiderdifferentmethodsofpressurevesseldesigninordertoproduceanASMEcompliantvessel.TwodesignmethodsareTheDesignbyRule(DBR)andTheDesignbyAnalysis(DBA).

DESIGN BY RULE METHOD (DBR)DBRisatypicaldesignmethodologyandcanbelocatedintheASMEBoilerandPressureVesselcodebooksinSectionVIII,DivisionIandPart4forDivision2,aswellasotherPressureVesselReferences.

DBR AND DBA COMBINED METHODInmanycases,usingbothDBRandDBAmakeslifeeasierforthedesignerbecausehe/sheisabletotakeadvantageofthetoolsofferedbybothmethods.

TheDBRmethod’sscopemaybetoolimitedforalltheaspectsofavesseldesign.Inthesecases,DBAcanbeusedtosupplementtheDBRmethodinordertocheckaspectssuchascyclelifeandsecondarystressesthatmaynotbeconsideredintheDBRmethod.

How Do You Create a Competitive Advantage When Bidding a Design?

Ifyouwanttobuildinacompetitiveadvantageforyourcompany,it’simportanttohavetheabilitytorapidlyprototypeandquotecode-compliantpressurevesseldesignvariations.Bylookingatdesignexamplesquickly,youcanofferdifferentoptionstoaclientandfigureoutthebestonefortheirneeds.

Whenquotingaprototypeforaclient,thereareseveralfactorstobetakenintoconsideration,suchasloadings,thegeographyoftheinstallationsite,designandoperatingconditions,upsets,shutdowns,andstartups.

Pressurevesselscomeinseveralshapes,representedbelow.

2020 PRESSURE VESSEL & HEAT EXCHANGER DESIGN GUIDELINES & RESOURCES

Page 7: 2020 PRESSURE VESSEL & HEAT EXCHANGER Design Guidelines

DESIGN RESPONSIBILITY

Thepressurevesselcodes,likeASMESectionVIII,Division1,areasetofminimumrequirements.Theydonotcoverallpossiblegeometries,loadingconditions,etc.Itistypicallytheresponsibilityofthemanufacturertoensurethevesselisdesignedproperly.

VesselsdesignedforPEDcompliancecanachievethisbydoingariskanalysis.VesselsdesignedperSectionVIII,Division2candothisbyusingtheloadcasecasecombinationsspecifiedinadditiontoanadequatelydefinedsetofloadingconditionsperauserdesignspecification(UDS);theUDSistheend-user’sresponsibility.

Division1canbeproblematicinalotoftheseareasasitrequiresallexpectedloadingstobeconsidered;but,forthemostpart,onlyprovidesmethodsforpressureandvacuum(itdoesnotincludemethodsforexternalloads)anddoesnotmandateaUDSorspecificloadcasecombinations.Itiscriticaltoaccountforallloadings,evenforaDivision1vessel.

Page 8: 2020 PRESSURE VESSEL & HEAT EXCHANGER Design Guidelines

CARBON STEELCarbonsteelpossessesahightensilestrengthandretainsstrengthatminimalthicknesses;howeverithaslimitedresistancetocorrosion,shock,andvibration.

STAINLESS STEELLikecarbonsteel,stainlesssteeloffershighstrengthatlowthicknessandisidealfortanksandvesselsthatareexposedtothenaturalenvironment(humidity,sunlight,etc.)orhightemperatures.

HASTELLOY (BRAND)Hastelloy®isanickel-molybdenumalloybrandthatishighlyresistanttocorrosionandbecauseofthemolybdenumitismadestrongerathightemperatures.

INCOLOY (BRAND)Incoloy®isrelativelyeasytofabricate,canbemadeusingthesamemachinesandprocessesusedtomakestainlesssteel,hasahighironcontent,makingitmorecost-effective,andisdesignedforhigh-temperatureapplications.

NICKEL ALLOYDespitethecomplexityandassociatedcost,nickelalloyhasmuchtoofferasapressurevesselmaterial.Itprovidesexcellentcorrosionresistance,comesinavarietyofgrades,andprotectsagainstthermalexpansion.It’simportanttonotethatthemanufacturingprocessforthisalloycanbemorecomplexthanwithotheramalgams.

ALUMINUMOftenconsideredasanalternativetostainlesssteel,aluminumischeaperandmucheasiertomachinethanstainlesssteel.Inmanyinstances,laborcostsmaybehigherassomealuminumtankfabricationrequiresspecialweldingtechniques.Itslowerdensitytypicallymeansanaluminumpressurevesselisunsuitableforextremelyhighpressures.

TITANIUMTitaniumprovidesseveraladvantagesinsalt-waterenvironments.Itisresistanttocorrosion,maintainsstrength&rigidity(evenatlowerthicknesses),facilitatesmoreefficientheat-transferthanmanyothertypesofmetal&canmaintainitsstructuralpropertiesoverlongperiodsoftime.

Avoid Mishaps with Proper Material Selection

Choosingtherightpressurevesselmaterialisquiteliterallythefoundationofaproperlyfunctioningpressurevessel.Itisessentialforthedesignengineertochoosethecorrectmaterialfornotonlythefunctionalityofthevesselbutalsoforthesafetyofthoseusingthevessel.

Pressurevessels,dependingonrequirements,canbemadefromavarietyofmaterials.Carbonsteelandstainlesssteelmightbethemostcommonlyusedmaterialsforindustrialapplicationsbut,betweenthetwothereisavastmultitudeofalloysandcompositionsthatcanbeusedforpressurevesselconstruction.Someofthesematerialsarecommonlyusedandothersarelimitedtomorespecificsituations.Below is a list of pressure vessel materials that are commonly used and why:

Material Strength & Joint Efficiency

TheJointEfficiencyisdeterminedfromthequalityofthejointdesignandthedegreeofexamination.Doubleweldedbuttjointsareconsideredthehighestqualityjointsandfullradiographyis,ofcourse,thehighestdegreeofexamination.Lowerqualityjointsandlowerexaminationwillbothresultinlowerjointefficiency.JointefficiencyisseenthroughoutthedesignformulasintheASMESectionVIII,Divisions1and2.Itisbasicallyamultiplieronthematerialallowablestress,thoughsometimesit’susedoesnotmakethatclear(see4.3.10inSectionVIII,Division2forexample).

Ahighstrengthmaterialmayeffectivelylosealotofitsstrengthifthedesignuseslittleexaminationorlowerqualityjoints.However,thismaymakemoresenseiftheeconomicrisksaremoreseveretodofullorpartialradiography(forexample)andType1joints;inthesecases,morematerialmayjustbethemoreeconomicchoice.

Forsomedesignconditions,suchaslethalservice,theCoderequiresthedesignertospecifyfullradiography.However,evenifnotrequired,thedesignercanspecifyincreasedandegreeofradiographicexaminationinordertoincreasejointefficiencyandreducetherequiredthicknessofthevesselwall.SeeUW-3andUW-12inSectionVIII,Division1forabetterunderstandingofjointefficiencyanditsdetermination.

Page 9: 2020 PRESSURE VESSEL & HEAT EXCHANGER Design Guidelines

DESIGN SOFTWARE

ThemainissuewithpressurevesseldesignisstayingcompliantwithASMECode,whichisupdatedeverytwoyears.Keepinguptodateonallthechangesthatoccurbetweencodeyearscanbecomplicated,especiallywhensomuchgoesintothedesignprocess,suchasmaterialproperties,headandshelldesign,nozzlereinforcementandwelddetails.Vesseldesignsoftwareeliminatesguessworkandsavestimesincethechangestothecodearebuiltintothesoftware.

AnimportantfactorininvestinginsoftwareistherequirementofthedesignertounderstandhowASMEcompliantpressurevesselsoftwareperformsthecalculations.Transparentformulasandcalculationsprovidethirdpartyreviewersandnotifiedbodieswithamuchsimplertaskinconfirmingtheproperdiligencewastakeninthedesign.

Multiplecoderequirementsexist,meaningthatdesignersmustmakedecisionsthatarenotexplicitlystatedinasinglecode.Thismeansthatsectionsofdifferentcodesmustbeusedandhowthecodesinteractmustbeunderstood.

AnAuthorizedInspectormustapprovethedesign.Aconcernmayberaisedifallcalculationsarebeingdonebyhand.Homegrowntoolsaretoughertoproveinregardtocompliance,andinspectorsareusuallymorecomfortablewithcommerciallysupportedASMEcompliantpressurevesselsoftware.Evenifyou’vebeenusingthesamecalculationforseveralyears,inspectorsstillneedtobecomfortablewiththedesignprocessusedforeachdesign.Provinganacceptabledesignwithinhousespreadsheetsmaybetime-consumingandcostlyforyourcompany.Duetothecriticalnatureofdesigningandmanufacturingpressurevessels,thatarecomplianttoallrelevantcodes,it’svitalformanufacturerstohavesoftwarethatsimplifiesthecomplexitiesinvolved.Forthirtyyears,theengineersatCEIhaveworkedtocreatethetoolsandsoftwarethatareneededtomakesafeandcost-efficientpressurevessels.

Theyhavedeliveredcomprehensivesoftwaretoolsthatareusedbyindustryprofessionalsatallstagesofdesignandmanufacturing,startingwiththeinitialstageofquotinganewprojectbyevaluatinglong-termpressurevesselreliability.

Authorized Inspector Review of Software Calculations

AuthorizedInspectorsrequirethatthebasisofdesigncalculationusediscompliantandproven.Becausethesafetyofpressurevesselsissoimportant,ensuringthedesignmeetscodeisparamount.Thiscanbedifficultduetothecomplexcalculationsinvolvedinthedesignprocess.

Rarelyispressurevesseldesigndonebyhand,andattheleast,geometryfortherequiredloadingsarecheckedbyexcelorMathcadfiles.Whilethesetoolsmakethedesigningofapressurevesselfareasier,it’snaturaltoquestionwhetherthesoftwarewillyieldresultscompliantwithASMESectionVIIIcode.Inordertoquelltheseconcerns,QA/QCdocumentswillbeusedtovalidatethetoolsandensurethevesselmeetscode.

Page 10: 2020 PRESSURE VESSEL & HEAT EXCHANGER Design Guidelines

Design Software Tools Have Major Benefits

Selectingadesigntoolcanbeachallenge,butitisaveryimportantcomponentoftheprocess.Hereare5benefitsofpressurevesseldesignsoftware:

COST SAVINGAdesignerorengineerspendingtheirtime,toresearchandimplementcodechangesandnewdesignrequirements,ismuchmoreexpensivethanthecostofasubscriptiontosoftwarethatwilldothatforyou.

STAFF CHANGEDesignersandengineersmaymoveonfromyourcompanyatanytime,meaningtheirknowledgegoeswiththem.Whenyoupurchasesoftware,yougainaconsistentplatformthatisusedtotrackcodesanddesigns.

EXTERNAL OPINIONAccesstoanexternalresource,asasecondopinion,helpstoensuredecisionsareconsistentwithindustrybestpracticesandcompliantwithCode.Furthermore,engineerswillhavethebenefitofconsultinganexternalresourceifthereisaproblemwithacalculation.

TIME-SAVINGWithoutsoftware,researchdoneacrossvariouscodebooksisoverwhelmingaswellastime-consuming.Withsoftware,thisresearchisalwaysatthereadyandreliable.

AUTHORIZED INSPECTOR FAMILIARITY Inspectorsaregenerallymorecomfortablewithprovensoftwarewhencomparedtohomegrownspreadsheetmacros.Evenifyouthinkyou’resavingmoneybynotpurchasingsoftware,thatmoneymaybelostinresearch,updatinginhousetools,andreworkfrommistakes.

Comprehensive Design Catalogs Save Time

Lookforacomprehensivecollectionofpre-builtparts,pieces,andmaterialdatainthedesigncatalog.Thisshouldincludepipe,fittings,flanges,structuralshapes,etc.Thismeansthatratherthanstartingfromablanksheetandcreatingeverythingbyhand,you’llhaveadesigntoolwiththenecessarycomponentsavailabletocompletethedesign.Youcaneasilydropdimensionsandmaterialpropertiesforeverycomponentinthedesignlibrary,whichwilllessentheworkandriskofmakingamistake.Onceeverythingisdroppedintothelibrary,youwon’thavetoworryabouttediouslylookingupeveryaspectintheASMECode,becauseeverythinginthedesignlibrarywillbecodecompliant.WhenselectingASMEpressurevesseldesignsoftwarelookforqualitycontrolprocedurestocaptureandintegratethelatestcoderevisions.Thesoftwareshouldgenerateeasytoreadreportformatsthatallowforquickverificationinpressurevesseldesigncode.Itisagoodsignwhenthesoftwareisdesignedbyengineersandweldingexpertswhoareactiveinthedevelopmentofthestandardstheirsoftwarereflects.

It’simportanttonotethatit’suptothedesignersandengineerstoguaranteeapressurevesselisuptocode.Whilesoftwareandtoolscanaidinthedesign,ASMESectionVIIIstates:

“TheCodeneitherrequiresnorprohibitstheuseofcomputersforthedesignoranalysisofcomponentsconstructedtotherequirementsoftheCode.

However,designersandengineersusingcomputerprogramsfordesignoranalysisarecautionedthattheyareresponsibleforalltechnicalassumptionsinherentintheprogramstheyuseandtheapplicationoftheseprogramstotheirdesign.”

Page 11: 2020 PRESSURE VESSEL & HEAT EXCHANGER Design Guidelines

MANUFACTURING A PRESSURE VESSEL

Listedbelowarethe3majorbenefitsofusingpressurevesselsoftwareformanufacturing:

1. INTEGRATION OF 3D MODELING CAPABILITYBycombiningmodelingsoftwarewithASMEcodesupport,engineerscansavesignificanttime.Oncethedesignerhasconfirmedthevesseliscodecompliant,theycanthenexportthedesigntomodelingsoftwaretofinishoutthenecessarydetailing.Thisconnectiongoesalongwayinpreventingreentryofdimensionaldata.Evenmorecrucialisithelpspreventamismatchofgeometriesbetweenthedrawingusedforfabricationandthedesigncalculations.Youdon’twantyourdrawingtocalloutstdwallpipewhenyourdesigncalculationsuseXXH.

2. RAPID SELECTION OF MATERIAL PROPERTIESThematerialdatarequiredtodoadesigncanbequiteextensive.Youneedallowablestressdataforeverymaterialateverytemperatureconditiontobeconsidered.Inaddition,youatleastneedthingslikematerialdensity,inordertocalculateweightandit’sderivative,seismicloading.Ifyouneedtoconsidercompressivestresscasesorvacuum,thenyouneedalotofadditionaldataaswell.Nowaddinthecomplexityofachangerequirementtousedifferenttemperaturesthanoriginallyplannedordifferentmaterials.Thetimesavedwithdynamicupdatingofmaterialpropertiesissignificant.

3. LOWEST COST DESIGNWhendesignerscanquicklyaddressthedetailsofdesignfromanearlystageandquicklyadjusttorequiredchanges,themanufacturercanofferamorecompetitivebidandfabricatevesselswiththeleastpotentialforrework.

Pressure Test

AHydrostaticTestisapressuretestthatfillsthepressurevesselwithwaterwhileremovingtheairandpressurizingthesystemupto1.3timesthedesignedpressurelimit(adjustedfordifferencesinthedesignstateandtheteststate).Hydrotestsarebeneficialbecauseonceit’scompleted,designersknowifthevesselcanhandlethepressurethatit’sdesignedtowithstand.

Inaddition,itisconsideredsaferthanapneumatictest.Thedownside,isthatvesselsdesignedforgasservicemayhavetohaveadditionalconsiderationsputinplace,justtohandlethewaterweightduringthistest.

APneumaticTestisapressuretestthatusesagasandpressurizesthesystemupto1.1timesthedesignedpressurelimit(adjustedfordifferencesinthedesignstateandtheteststate).Pneumatictestsareintendedforspecialcaseswhereahydrotestisnotfeasibleforthevesselinquestionandtheyrequiresomeadditionalconsiderations.

ACharpyImpactTestisahighstrain-ratetestthatrequiresaweightedpendulumtoswingfromasetheighthittingastandardnotchedpart.Theresultsoftheimpacttestmeasurestheenergyabsorbedbythepartduringtheimpact,testingthestrengthofthepart.TheCharpytestisalsoreferredtoastheCharpyV-notchtest.Thistestisnottypicallyperformedonthevesselitself;butinsteadisperformedonthematerialsofconstruction.

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ASME STAMP REQUIRES COMPLIANCE FOR DESIGN, MANUFACTURING & INSTALLATION

AUTHROIZED INSPECTION DESIGN & MANUFACTURINGAfundamentalprincipleisthattheASMEStampedpressurevesselmustreceiveaninspectionbyanauthorized“thirdparty”duringallstagestoverifycompliancewiththeapplicablerequirementsoftheCode.

Asignaturebyanauthorizedthirdparty,certifyingthattheobjecthasbeenmanufacturedinaccordancewiththerequirementsthereof,isakeystepfortheacceptanceofboilersandpressurevessels,especiallybyseveralbodiesinvolvedinthelegalizationprocess.

AUTHROIZED INSPECTION OF INSTALLATIONBesidesinspectingpressurevesselsinthestagesmentionedabove,aninspectorrepresentingthejurisdictionofinstallationmayneedtoapprovetheinstallation..Aftertheequipmenthasbeenplacedintoservice,anauthorizedinspectororarepresentativeofthejurisdictioncanperiodicallyinspectthecompliancewithlegalrequirementsdefinedbylocalregulationsonboilersandpressurevessels.

ASME STAMPEDInadditiontoalltherequirements,anystampedboilerorpressurevesselmustcomplywithallaspectsoftheCode,meaningitmustbedesigned,fabricated,andexaminedbyamanufacturerholdinganAuthorizationCertificateissuedbyASME.

NON-ASME STAMPEDEvenwhenapressurevesselisdesignedpertheASMECode,theequipment,itself,maynotbeASMEstamped.EquipmentthathastheASMEstampisusuallyassociatedwithaqualitylevel,and,therefore,safety.

ASMEstampedequipmentrequiresthoroughdocumentationmanagementandstringentinspectionprocedures.Thestampandassociatedprocessesaregenerallytherequirementsofthecustomerandthejurisdictionofinstallation,toensuresafetyandreduceliability.

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DESIGN PROCESS

Optimize Your Design Process

Itisessentialthatthoseinvolvedwithpressurevesselsandpressurevesseldesignandmanufactureareuptospeedwiththelatestcodes,rules,andregulations.

Itisalsoessentialthatpurchasersspecifypressurevesselcodecompliance,andthattheend-useroperatesandmaintainsthepressurevesselinasafeandintendedmanner.Safetyisparamountsinceitlowerscost,reducesinsuranceandaboveall,saveslives.

Muchhasbeensaidaboutsoftwarelicensemodels.Aone-timepurchaseseemseasy,butastimepasses,softwareneedstobeupdated.Withasubscriptionmodel,you’realwaysassuredofthelatestrevisionofthesoftware,andthelatestcodechangesareincluded.

Thetoolsthatyouselectworkbetterwhenyouhavesuperiorsupport.Ifyoursupportpersonisaphonecallorchatbotaway,thatwillhelptoimproveyourbusinessandproblemresolutiontime.

Bychoosingthebestmaterialforyourproject,educatingyourselfontheappropriatecodes,assemblingyourpressurevesseltoindustrystandards,andusingthecorrectsoftware,themanufacturingofpressurevesselscanbeasafeandefficientprocess.

IfyouareinneedofASMEcompliantpressurevesselsoftwareconsiderusingCEI’sDesignCalcssoftwareandFinglowsoftware.Designedbyengineersforengineers,DesignCalcsandFinglowensuresallofyourdesignsareuptothelatestcodes.Withthedesignlibrary,youcansavetimeandhavepressurevesseldesignsreadyforanauditandstamptest.

IfyouneedanymoreinformationfeelfreetoreachouttoourpressurevesselsoftwareexpertshereatCEI.

Page 14: 2020 PRESSURE VESSEL & HEAT EXCHANGER Design Guidelines

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