ProcedureDoc.No.DBP/QAP-1101HydrostaticTestControlRev.No.0Page:1of4HydrostaticTestControlProcedure□Controlled□Uncontrolled0InitialissueRevNo.Rev.DateRev.DescriptionPreparedbyReviewedbyApprovedbyDalianDeepBluePumpCo.,Ltd.ProcedureDoc.No.DBP/QAP-1101HydrostaticTestControlRev.No.0Page:2of41.PurposeThisprocedureistocontroltheprocessofhydrostatictestandprovidehydrostatictestsequenceandrequirementsmakingthehydrostatictestconformtorequirementsofASMESectionⅢ,Division1,NBandQAManual(DBP/NQA-SC-10)2.ScopeThisprocedureisapplicabletoallthepressureretainingitems,appurtenanceandmaterialtobehydrostatictested.3.Terms3.1Hydrostatictest:applytestpressuretotheitemunderprescribedcondition.水3.2Holdingtime:thetimeofhydrostatictestpressuremaintained4.Responsibility4.1Technicaldepartmentshallberesponsibleforpreparingofhydrostatictestinstructionanddesigningoftestclampingfixture.4.2Fabricationdepartmentshallberesponsibleforpreparingtechnicalrequirements,performinghydrostatictestinaccordancewithrequirementsofdrawing,TechnicalProcedure,travelerandinstructionsandrecordingtestresultsonthetestreport.4.3QADepartmenta)organizetotrain,examineandqualifythehydrostatictestoperatorandexaminer.b)analyzethetestwaterandrecordthewateranalysisresultsontheanalysisreport.c)superviseandnoticecustomerandANItocomeforwitness.5.Pre-workofhydrostatictest5.1Thepressuregaugeshallbeindicatingpressuregaugeandbeconnectedtotheitemtobetesteddirectly.ThepressuregaugeshallbeinstalledonthepositioneasytowatchinProcedureDoc.No.DBP/QAP-1101HydrostaticTestControlRev.No.0Page:3of4accordancewithtechnicalrequirements.5.2Indicatingpressuregaugea)analogtypeindicatingpressuregageusedintestingshallbegraduatedoverarangenotlessthan1.5timesnormorethan4timesthetestpressure.Itisbesttoselect2timestestpressure.b)digitalpressuregaugemaybealsousedwithoutrangerestrictionprovidedthecombinederrorduetocalibrationandreadabilitydoesnotexceed1%ofthetestpressure..5.3Calibrateallthepressuregagesagainststandarddeadweighttesteroracalibratedmastergage.Allthepressuregaugesshallbecalibratedbeforeeachtestorseriestest.Aseriesoftestisthatgroupoftestsusingthesamepressuretestgageorgageswhichisconductedatthesamesitewithinaperiodnotexceeding2weeks.5.4Performthehydrostatictestafteralltheinspectionsfinished.Fortheitemneedtobeheattreatment,performthehydrostatictestafterheattreatment.5.5Thehydrostatictestoperatorshallbetrainedandfamiliarwithmaterialsrelatedtoitemtobetested.(suchas,drawingandrequirementsabouthydrostatictestoperation)5.6Theexaminershallbequalifiedtoverifythepump,piping,valve,pressuregageandclampingfixtureusedintest.5.7Thetestequipmentshallbeexaminedbeforepressureisappliedtoensurethatitistightandthatalllowpressurefillinglinesandotheritemsthatshouldnotbesubjectedtothetesthavebeendisconnectedorisolated.6.Hydrostatictest6.1ThetestmediumshallbewaterorotherliquidpermittedbyDesignSpecification.Thetestmediumtemperatureshallconformtorequirementsofdrawingorinstruction.6.2Injectthetestmediumafterthetesteditembeingdischargedairtothelestcontent.6.3Thetestpressure,holdingtimeandacceptancecriteriashallconformtorequirementsofdrawingorcustomerdocuments.6.4Increasethetestpressureslowlyto0.8timestestpressuretochecktestequipment,eachareaandpressurevalue,andthenincreasethepressuretotestpressureifnoleakageorabnormalProcedureDoc.No.DBP/QAP-1101HydrostaticTestControlRev.No.0Page:4of4phenomena.6.5Keeponventingofthetestareatopreventoverpressureresultingfromabnormaltestmediumtemperatureincreasingduringholdingtime.6.6Theholdingtimeshallconformtorequirementsoftechnicalanddrawing.Checkthepressurewithinprescribedtimetoensurethepressurestable.6.7Examinationforleakageafterapplicationofpressurea)holdingthetestpressureatleast10minbeforeexaminingleakage.b)examinetheleakageundertestpressurewiththewitnessofANIc)thetestoperatorshallnotbeabsentfromhispositionduringhydrostatictest.7.Afterhydrostatictesta)thehydrostatictestoperatorshalldrytheitemwithcleancompressedairornitrogenafterhydrostatictest.b)thetestresultshallberecordedon《HydrostaticTestReport》byhydrostatictestoperator,signedbyexaminerandreviewedbyANI..8.RecordHydrostaticTestReport(Exhibit11-1)
