【RCC-M - Edition 】SUBSECTION C.doc

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RCC-M
SECTIONI:
SUBSECTIONC
CLASS2COMPONENTS
C1000
GENERAL
C1100 INTRODUCTION
SubsectionCoftheRCC-Mcoversclass2pressureretainingcomponentsandtheirpartsasdefinedinchapterA4000.
.
ChapterC3000setsrulesfordesignofequipment.
ChapterC4000setsrulesformanufacturingofcomponentsandtheirpartsandforexaminationsperformedbothpriortoandfollowingmanufacture.
ChapterC5000setsrulesforpressuretests.
WhenannexZSisexplicitlyrequiredbythecontract,itsupplementstherequirementsofthissubsectionwhenevernecessary.
C1200 REQUIREDDOCUMENTS
ChapterA3000definesthesedocumentsanddescribestheircontent.
.
C1210 EQUIPMENTDOCUMENTS
,anentirelotofcomponentsmaybecoveredbythesamedocuments.
C1211 DOCUMENTSATTACHEDTOTHEPURCHASEORDER
- Equipmentspecification(technicalpurchaseorderaddenda)-A3100.
C1212 PRELIMINARYDESIGNANDMANUFACTURINGDOCUMENTS
- Comprehensivelayoutandreferencingdocuments-A3201.
- Sizingreport-A3202.
- Componentpartslist-A3203.
- Descriptionoffabricationshops-A3204
- Qualityplan(initialphase)-A3801.
C1213 DOCUMENTSPREPAREDANDUPDATEDDURINGFABRICATION
- Comprehensivelayoutandreferencingdocuments-A3201.
- Componentpartslist-A3202.
- Stressreport(ifrequiredbytheequipmentspecification)-A3203.
- Weldingdatapackage-A3501.
- Aweldingdatapackageshallbepreparedforagivenpressure-retainingcomponent.
Itshallbeupdatedtoaccountforinnovationsinweldingmethods.
- Hydrostatictestreports-A3603(whichreferstoC5000).
- Non-conformancereportaddeviationreport-A3700.
- Qualityplan(follow-updocument)-A3801.
- Pressuretestspecification.
- Testcertificate.
- Testreport.
C1214 POST-MANUFACTURINGDOCUMENTS
- End-of-manufacturingcertificate-A3804.
- End-of-manufacturingreport-A3805.
C1220 DOCUMENTSFORCOMPONENTPARTS
C1221 PROCUREMENTDOCUMENTS
- Technicalpartandproductmanufacturingprogrammes-A3301SECTIONIIofthisCode(procurementspecificationsandsubchapterM300)specifiesthepartsandproductsforwhichsuchprogrammesmustbedrawnup.
- Partandproductsub-purchaseorders(technicalandadministrativeclauses)-A3302().
- Parttyperecord(forcastings)A3303-1(whichreferstoM160).
- Characterisationreportforprototypeseriesofheatexchangertubes-A3303-2(whichreferstoM170).
- Procurementspecification-paragraphM113ofSECTIONIIstatestheconditionsunderwhichspecialprocurementspecificationsmustbedrawnup.
- Fillermaterialsacceptancespecification-A3502(whichreferstoS2120andS8170).
- Fillermaterialsacceptancereport-A3503(whichreferstoS2550andS8250).
C1222 MANUFACTURINGDOCUMENTS
- Fabricationproceduresorinstructions-A3401.
- Weldingdocuments-A3502.
- Weldingreports-A3503.
- Examinationproceduresorinstructions-A3601.
- Examinationreports-A3602.
C1223 NON-CONFORMANCEREPORTANDDEVIATIONREPORT
- SeeA3700.
C1300 IDENTIFICATION
C1310 PURPOSEOFEQUIPMENTIDENTIFICATIONSYSTEM
Theequipmentidentificationsystemisameansofunequivocallyassociatinganequipmentpartorweldjointwithagivensetofdocuments.
C1320 ADAPTATIONOFIDENTIFICATIONSYSTEMTOPRODUCTIONCONTROLMETHODS
Identificationproceduresmustthereforebeadaptedtothetypeofproductioncontrolmethodappliedtothepartorweld:
- acontrolofindividualitems,usingoneidentificationnumberperitem,
- acontrolbylot,usingoneidentificationnumberperlot.
Whenapartistakendirectlyfromstockandhasonlyasteelgradenumber,theidentificationproceduressetforthinthisCodeshallnotapply.
C1330 IDENTIFICATIONMETHODS
Methodsusedtoidentifythecomponentsmayinclude:
- etching,
- temporarymarking(withink,paint,etc.),
- labelling,
- routingslips.
IdentificationmethodsandshoporganizationproceduresshallbedefinedwithaviewtoensuringcompliancewiththeobjectivesetunderC1310.
C1340 TYPEOFIDENTIFICATIONDATA
TheRCC-Mdoesnotrequireinformationrelatedtotheoriginofanypartorweld(suchasheatno.,lotno.,heattreatmentno.,weldingoperatorno.,etc.)tobemarkedorwrittenonthatitem,itslabel,oritsroutingslip.
However,marksorcodeswhichprovideclearreferencetodocumentscontainingtheinformationrequiredforproductioncontrolwillalwaysbeacceptable.
Wherelotsaredividedintooneormorefabricationsublots(),theoriginallotnumberneednotappearoneachitem,providedthatthenewidentificationsystemallowsforaccurateidentificationoftheitem'sorigins.
C1350 RE-MARKINGANDRELABELLING
Ifanidentificationcodeisremovedorerasedduringfabrication,theManufacturershallmarkorlabelanotherportionofthepartasappropriate.
Machineditemsbelongingtothesamelotdonotneedtobere-markedaftereachmachiningoperation,providedthat:
- fabricationproceduresprovidefortotalsegregationoflots,
- rejectsaremarkedimmediately,visiblyandindelibly.
Intheparticularcaseofplates,whererollingdirectionisofsignificanceforsubsequentfabricationortesting(),thisinformationmustappearontheiteminvolved.
Adiscardshallalwaysbeidentifiedaccordingtoitsintendeduse.
C1360 MARKINGMETHODS
MarkingmethodsshallcomplywiththerequirementsgiveninchapterF2000.
C1370 REFERENCINGOFWELDS
C1371 RULESAPPLICABLETOALLEQUIPMENT
Thefollowingshallbenecessarytoestablishaclearcorrelationbetweentheweldanditsdocumentaryrecords:
a)forweldsgroundflushwithbasemetal:positionofweldjointplaneshallbeindicatedbeforeweldingbyetchingfoursymbolsintothemetalat90°anglestoeachother,.
However,theweldjointmaybereferencedononlyonesideprovidedthatthepositionofreferencemarksandthetolerancevaluewithrespecttothebevelareshownonadrawingorinaprocedureandthattheidentificationnumberstartswithanarrowindicatingthepositionofweldwithrespecttothereferencemarks.
b)forradiographically-examinedweldsonpressure-retainingcomponents:areferencepointshallbegivenoneachweldasabasisforallreferencing,,anothersymbolplacednexttothereferencepointwillindicateinwhichdirectiontheradiographsshouldbeturnedforinterpretation.
C1372 RULESFORPIPING
Allpipewelds,includingthosegroundflushwiththebasemetalandthoserequiringradiographicexamination,shallbemarkedwithanidentificationnumber.
,,.
Numbersforweldsgroundflushwiththebasemetalshallbelocatednolessthan80mmfromtheweldbevels.
TheContractorshallestablishmarkingprocedureswhichheshallmakemandatoryforallManufacturers,toensurethatidentificationcodesforallpartsofagiveninstallationareconsistent.
C1373 RULESFOROTHEREQUIPMENT
Allpressure-retainingwelds,includingthosegroundflushwiththebasemetalandthoserequiringradiographicexamination,shallbemarkedwithanidentificationnumber.
AllidentificationnumbersshallbegivenontheManufacturer',fortechnicalreasons,thesemarkingsmustberemovedorerased,theiroriginallocationwithrelationtospecifiedpointsontheequipmentcanbeobtainedfromthedrawings.
Templatesmaybeusedforrelocatingidentificationmarkingsonsomeweldjoints,speciallyasanalternativetotheabove-mentioneddrawings.
C2000
MATERIALS
C2100 GENERAL
,whereappropriate,toSECTIONII,"MATERIALS".
Note:Theterms"ferriticsteels"and"austeniticsteels",M3400andM4000ofSECTIONII,shallbeconsideredasbelongingtothecategory"austeniticsteels".Othermaterialsbelongtothecategory"ferriticsteels".
C2200 APPLICATIONOFSECTIONIIC2210 GENERAL
TheconditionsspecifiedinchapterM100shallapply.
TableC2200listsprocurementspecificationstowhichtheManufacturershallreferforpartsortypesofpartscoveredbytherequirementsofthissubsection.
Theclass2criteriainproductprocurementspecificationscoveringseveralclassesofcomponentsspecifiedintableC2200shallbeapplicabletoallpressure--pressure-retainingcomponentsunlessotherwisespecified(class3)inthe"applicabledocuments"columnoftableC2200.
Options,particularlyrelativetochoiceofgrade,,asamatterofcourserequireverificationofatensiletest
athightemperature,thisverificationshallbeperformediftheoperatingtemperaturespecifiedinthe
equipmentspecificationisgreaterthan250°°C,dependinguponthegradesusedand/orparticularstresses,theequipmentspecificationorotherapplicabledocumentsmayrequireverificationofthetensiletestathightemperature.
C2220 CLASSIFICATIONOFPUMPINTERNALS(constructioncategories)
Pumpinternalsareclassifiedinthreecategories:A,-categoriesA1,A2,B1andB2.
C2221 BASICPARAMETERS(seefigureC2221)
Theclassificationtakestwoparametersintoaccount:
- maximumperipheralspeedU2inm/scorrespondingtothenormaloperatingspeeds,
- slendernessratiooftheimpellerdefinedastheratiooftheinternalwidthofthechannelattheimpelleroutlet(B2mm)andtoexternaldiameteroftheimpeller(D2mm).
e=B2
D2
(theslendernessratioofboosterimpellersisconsideredas>).
Note:Thedimensionstakenintoaccountarethoseofpartsinmachinedcondition.
C2222 ALLOCATIONCRITERIA
TheconstructioncategoryallocationcriteriaaredefinedintableC2222.
TABLEC2222
Peripheralspeed
Slenderness m/s
ratio
U2<30m/s
30m/s≤U2<60m/s
U2≥60m/s
e≤
C
⎧B1
B⎨
⎩B2
A⎧A1
⎨
⎩A2
e>
Theclassificationofthediffuserisidenticaltothatofthecorrespondingimpeller.
Theclassificationofotherinternals(.:shrouds,returnguidevanes,etc.).
Non-destructiveexaminationsresultingfromthepreviouscriteriaareindicatedintherelevantreferenceprocurementspecifications.