ML17212B468

Forwards Response to Request for Addl Info Re mini-purge Sys Valves

ML17212B468
Person / Time
Site:	Saint Lucie
Issue date:	03/23/1982
From:	UHRIG R E FLORIDA POWER & LIGHT CO.
To:	EISENHUT D G Office of Nuclear Reactor Regulation
References
L-82-110, NUDOCS 8203300149
Download: ML17212B468 (40)

Text

JREGULATORINFORMATIONDISTRISUTIONOATEN(RIDE)ACCESSIONNBR82P3309149OOCPATE!82/03/23(OTARI'ZED:NOFACIL:50>>389'St.LuciePlanti.Unitt2EFlorida'PowerKLightCo~AUTH'AMPAUTHORAFFII,IATZONUHRIGER~E~'FloridaPower8'LightCo.RBCIP~NAMERECIPIENTAFFIL'IATIONEISENHUTED.G.DivisionofLicensing"

SUBJECT:

For,wardsresponsetorequestforaddiinforemini'urtgesosvalves.DISTRISUTIOIJJCODElA03ASiCOPIESiRECEIVEDIL'TR.'IENCL,~(SIZEI"3LTITLE:Containment~PurgirigNOTES!DOCKET05000389RECIPIENTIDCODE/NAgELICBR03BC01INTERNALsIE06NRR.SHUMED15NRR/DL/ORAB10NRR/DSI/AEBN/ETSB.08REGF04~COPIESLTTRENCL771111111111RECIPI/NTIDCODE/NAMENRRREEVESiE14NRR/DE/EQB09NRR/DSIAORSNRR/DSI/CSB12NRR/DSI/RAB11RGN2..COPIESLATTRENCL11111011EXTERhlALeACRS13NRC,PDR02NTI'10101111LPDRNSIC'0305111rTOTALNUMBEROFCOPIESREQUIRED~LITTR"33'NCL'32

'qX('rIrr'Irgt~W>>r;~I',yll3(.'<<fI~It<<<<,<<ftrhIllIIgrtf<<Ir<<~t<<II)lr4Il(.Igrr>>rr<<iqr'4>>~rh/1~3fi,(~'I'fair1<<>>fr>>r'lIg1$4QrIrr<<IOE P.O.BOX529100MIAMI,FL33152FLORIDAPOWER5LIGHTCOMPANYOfficeofNuclearReactorRegulationAttention:Mr.DarrellG-.Eisenhut,DirectorDivisionofLicensingU.S.NuclearRegulatoryCommissionWashington,D.C.20555

DearMr.Eisenhut:

Re:St.LucieUnit02DocketNo.50-389Mini-PurgeSystemValvesReuestforAdditionalInformationMarch23,1982L-82-110MAPP9)g8p~L$irihmqRE~IutnrC:l3Q+Itgi7@i~l!P1)P'nttcAttachedistheFloridaPower8LightCompanyresponsetotheNRCstaffrequestforadditionalinformationregardingtheSt.LucieUnit82mini-purgesystemvalves.Webelievethatallstaffquestionshavebeenrespondedtobythissubmittal.Verytrulyyours,otE.UhrigVicePresidentAdvancedSystems5TechnologyREU/RAK/gaAttachmentscc:J.P.O'Reilly,Director,RegionII(w/oattachements)HaroldF.Reis,Esquire(w/oattachments)ggpp>pp149>ppppelpsepsis-',~-'.'pogADOC~pogfp',,'~")'i.it-p~'EOPLE...SERVINGPEOPLE LgItg~1' PURGESYSTEM1.QUESTION:ProvideinstallationdetailsforthecontainmentminipurgevalveI-FCV-25-26.RESPONSE:TheinstallationdetailsfoxtheminipurgevalveareprovidedonAttachment1(EbascoDwg.No.2998-G-869,R.6).Thegeneralar-rangement(P&ID)forthesevalvesisprovidedinFSARFigure9.4-11.k2.QUESTION:ProvideEQandSQRTQualificationdata'forminipurgevalvesI-FCV-25-26andI-V-25-25.IRESPONSE')I,TheSQRTqualificationinformationfortheabovevalveswassub-mittedtotheNRGonDecember2,1981(FPGLLetterL-81-507)inresponsetoQuestions,271'.1thxu271.5oftheEquipmentQualifi-cationBranch-SeismicDynamicLoadsSection.b)TheEnvironmentalQualificationforvalveI-FCV-25-26wassub-mittedNovember1981inresponsetotheGenericEnvironmentalQualificationEffort.3.QUESTION:Providetheclosuretimesforallthepurgevalves.RESPONSE:Eachpurgevalveisdesignedtocloseinlessthan5seconds.4.QUESTION:Whatisthemaintenanceprogramforthebutterflyvalverubberseat?RESPONSE:AmaintenanceprogramwillbedevelopedforSt.LucieUnitf/2simi-lartoSt.LucieUnit//1.ThepxogramutilizedforSt.LucieUnit/!1involvestestingto10CFR50AppendixJrequirements.Seatleak-agetestsareconductedevery18monthsateachrefuelingoutage.Anyrepairorreplacementisdoneasrequiredsubsequenttothetest.Inserviceinspectionisperformedonthevalvesevery18monthsinaccordancewiththerequirementsofASMESectionXI.5.QUESTION:Areallsolenoidsusedwiththevalveoperatorsenvironmentallyqualified?RESPONSE:TheminipurgevalvesutilizedASCOsolenoidvalvesPartNo.NP8321AIEwhichmeettherequirementsofIEEE-3231974,and344-1975assub-stantiatedbytestingvalvesofgenericallyequaldesigninaccordancewithASCOqualificationspecificationAQS-21678Rev.1,2/15/78.

6.QUESTION:Whatisthe'stablishedISXPxogramforthevalves?RESPONSE:TheInsexviceXnspectionPxogramwill.followtherequirementsofASMEXI,1977Editionthruthesummerl978agenda.ThisprogramwillbesubmittedtotheNRCforreviewandapprovalatalaterdate.7.QUESTION:DothepurgevalveshavehandwheelsformanualoperationandhowdoyoupreventoverridingAutomaticIsolation?RESPONSE:Thecontainmentminipurgevalvesareair-operatedvalveswithspringactuatorsprovidedforpromptclosure.Thosevalvesaredesignatedcontainmentisolationvalvesandreceivetheappro-priateCIASforclosure.Handwheelsareprovidedforvalveopeningandareusedonlyiftheairsupplyisnotavailable.Xfthehandwheelsareutilizedfoxopeningduringnorma1plantopexation,thevalvewillrequiretherestorationofthisin-operablevalvetoOPERABLEstatuswithin4hoursorbringtheplanttoHotStandbywithinthenext6hours.TheseprovisionswillpreventoverridingoftheAutomaticContainmentXsolation.8.QUESTION:Howisclosureofthecheckvalveonthemini.purgemakeuplineassured?RESPONSE:DuringoperationofthecontinuousContainment/HydrogenPurgeSystemmakeupaixisprovidedtothecontainmentviapenetra-tionP-56.Themotiveforcebehindthismakeupairisthe'lightnegativepressure(approximately3"W.G.)createdinsidecontainmentbyt'eoperationofthepurgesystem.Isolationofthemakeuplineisassuredbyapoweroperatedbutterflyvalveandaswingtypecheckvalve.Thischeckvalve(I-V-25-25)isdesignedtoopenat1.4"W.G.andisspringloadedtoinsureclosureascontainmentpressureapproachesatmospheric.Thus,thevalvediscwouldbeatrestagainstthevalveseatpxiortothegenerationofelevatedpressuresinsidecontainmentduetoapostulatedaccident.Valveintegrityisfurtherassuredbyitsdesignpressureof150psigandadifferentialpressuretestat75psig.Thisvalveismanufactured'byGPEControlstoASMEIII,Class2standardsandisseismicallyqualified.

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A/E:EBASCOSERV1CESINC..UfILITY:FLORIDAPOKERbLIGHTQ~~szFAC}LITY:COMPO}4ENTrdTipST.LUCIEHO.EVALUAT}ONSHEETNSSS:COMBUSTIONENG.-PVQCAPACITY:890MV(E).V~0CESe-0447EOUIPM}N'fIENVIRONMENTDESCRIPI}ONIPARAMETERSPECIF}EDtDOCUMENTATIONIDUALIF}DEM.OUAL1F.ISPKClFlEODEM.OVALIF~fME}HOGI2--<<I--o-o3o--4---I-5IOUTSIITK}4SIH/M!oo6Ieo7ofTAGHO:FCV-2526(01APIOPKRABIL-IHRAGM.F.C.)--I:ITYI.==--=-=INORM/TESTIVALVESIOBAIEOUIPMENT:TYPEIIIIII---=ICOMB.ITEST6EXTRAPOL'N!HONEIACCKLT}MK:IIACCKLTEMP:el----CDMPONENT:B'TFLYfTE}4PERATt9}.SFNORMUREtI.----=I!}BF1200HRITA821FfISL2FSARII1'ABLE3}f-IICOMB.ITKST6!EXTRAIMtHONEfRKPLACEMENT:MANUFACTURER:HENRYPRATTtIIIo\IT395--}IPOL'N!eeaeaaooeeoeeeeeeeeea!MA(NTA!N~IPRESSUREIATMOSNORMIIOPS1GIPAB21I!SL2oFSARICOMB.ITF.ST6!NONEII14AJORSUPPL1ERMODELAND:.SER}ALV*FUNCT.DES:CONT1SOL:.'SERV}CECLOSE(C1AS)TEST6.IEXTRAIISPRAYf~III-!IIfI-.-'I(ACC.OBA)IITABLE3ft1IIEXTRAIII}P394---IIPOL'NIeIRELATlVE}58.0%HORNI'IHA827F='IICOMB.IHUMIOfTYf--...IISL2oFSARI'ITEST6!I~I60.0)(}200H!'TABLE3}tetI--..}EXTRAI==-.-=I;,.,IIH395IIPOL'NIICHK}41CALIII---I.....ICOMB.II/IIII/IISUBCOMPONENTS:Ie'INOUNIOUETAGGEDNONEISUBCOMPONENTSARK.,IENVELOPEDBYTHISIKOU}PMENTIoeeetHONKIACCUR.SPEC:HDTAPPL1CABLKoeeee\ept~COOQDlNATKSX-609.0Y-}5!6.0Z-45.0T35.7P35~7H35.735.7R35.735.735.7~~e~~~~ee~~~e~~~e~e~~~~~eeeet}RAD}AT}ONPHYSDVGREF:2998G.395PHYSDWGLOC:MOUN11NGEO.DOC.LOC:'IAGINGISUBMERGENCE!SARENVCAT:K10588CA1EG.:A!APPENDIXEIIt2HRI4803.0E4ACCUR.DKMotNOTIA30OI5.0ES5.6ESAPPLICABLEIDtYR!1.3E55.8ESI.40YR/R'@IS.OE35.0KSSPEC1F1CAT1ONS:ItAGE-P.OP:422537I1NSTL1FEIl(PEQ323-IPLA}41;LOC.:AB21I!974OEF.)IIISUBMERGEOIIYES/NO!II}IINSTALLED(Y/N):LTRIINSTAL.RKF:BY-FLOPARASUPPL.OUALIFEXEMPIN:NOTAPPLICIMETERREVIEW~~e~~~~~~~~~~~~~~~~~~~~~~~e~~~IOPERA81LITY~DUALIF:~ITEMPK'!ATURE~STATUS~tPRESSURE~fREL.HUl4}O}TY~ICHK}4.SPRAYIIRAB27UItISL2-FSARIIITABLE31lefIIR395II}OCFRSOItIPARA50.5}IIIIIIIIIIIIIIIooPOL'NCOMB.TEST6KXTRA-POL'NtICOMB.IITEST6!EXTRAoPOL'N!ooeeetINONEIolHONKIISAFETYFUNCTION:COMB.HOHEITES!6}IIEXTRA-ItIAUT}(.

REFERENCE:

'IPOL'NIII3.9}0ooeeo~eeoIOPERATING

REFERENCE:

}PREP/DATE:C/5SIGNOFFS!CHECK/DATE:OQEOUIV.INKO.FILEIOUALIF1CATIDNREFERENC'EfRKV>-0!PREP/DATE:CKSSIGNOFFStCHECK/DATE:OQEnu}V.INKO;FILESYSTEMITAGFCV~2526}DIAPHQAGM.F.C.}IOIHEREOU}PMENTTH15CESAPPLIES1'0:IIFCVo25e!(PISTON,FC)IIIREFEREHCES: ~~S%eDISCUSSIONONMAINTENANCEPROCEDURESRUBBERSEAT:TherubberseatismadeofRESILOSEALN*whichisanethylenepropylenecompoundedspecificallyfornuclearserviceunderelevatedbackgroundradiationandtemperaturelevels.Although"indicationsshowthatRESILOSEALNhasanexcellentservicelife,notenoughdatahasbeencollectedtoaccuratelypredictitsexpectedlifeundervaryingconditionsofuseandenvironment.Itis.knownthathigherradiationlevelsandtemperatureshortenthelifeexpectancyoftheseat.Failuremodeischaracterizedbyashrinkingalongwithahardeningoftherubberandeventualcracking.Forthisreasonwerecommendthefollowingsemi-annualchecks:l.Avisualinspectionoftheseatbemadetocheckfordimensionalshrinkingandcracking.2.ADurometerreadingbetaken.(Ifareadingofover75isindicated,werecommendthattheseatbereplaced.):ThesearestrictlyprecautionarymeasurestakenduetotheI'cceleratedaging'.causedbyradiationandheatandthefact..thatrelativelifeexpectancycanchangefrominstallationto,installation.*ResilosealisatrademarkofHenryPrattCo.,Inc.0-5. Cf'E'4 ForinformationaboutPrattRubberSeatButterflyValvnotcontaative,orinedinthismanual,contactourlocalSalesRepresewritedirectto:HENRYPRATTCOMPANY401SouthHighlandAvenueAurora,Illinois605071Jl~IIItlfII~1III'III,ii,If~gati~yIff,i'~I'ffIIj0-6 J'~+~ REPLACINGRUBBERSEATINNUCLEARBUTTERFLYVALVEA.DISASSEMBLY1.Turndiscinopenposition.M2.Removeadjustingscrewsinsegments.II3.~Numberallreta'iningsegmentsandmarkproperlocation"onvalvebody.4.Prysegmentsoutofbody.5.Removeoldrubberseat.6.Cleanseatgroovewithcleandryrag.B.INSTALLATIONl.Applylightcoatofsiliconegreasetoseatgroove.*2.Insertnewlinerseatintoplacebypushingrubbersnug.3.Insertsegmentsbackintobodyandinstallscrews.4.Closevalvedisc.5.Tightenallsegmentadjustingscrewstoassurereason-ableinterferencebetweenseatanddisc.6.Bubbleorleaktestvalveandtightenadjustingscrewsasneededtostopallapparentleaks.MI*WerecommendDowCorningvalvesealorDow..CorningIIICompound.Pleasenote.thattheuseofPetroleumgreasenegatesallguarantee0-7 g~-s~~mathSxvkekCo.'IManufacturereotDEPENDABLECONTROLSince1SBS.?ARK,NBVJERSEY07NiNQPi2OOceegoo)N.Y;taQl34.3reS~~I(~(((~((tCERTlFICATEOFGOMPLIANCE'eI'CFXndusteiesgXc...".CustomerP.O.No.~"~I~~~~'ASCOShopOrderNo.063H~~(-:ASCOPaIINO.~~~+Ua((IIIP~\,~Pwo,~pot~l25"VDCPngJobNo672L5CHECKEGKBY(~Peocertifythatthesubjectvalvegs)meettheperformancerequirementsoflEEE-323-1974,$82-1972andlEEE-344-1975,assubstantiatedbytestingvalvesofgenericallyequaldesigndancewithASCOQualificationSpecificatioAQS-21678,Revision"B",2I15I78.els-IgSimolatio'n(ThermalAging-268Ffor12'daystosimulate4.4yearsat140Fambient.Thetesttemper-atureandperiodarebasedonthe10oCrole(ArrheniusEquation).'adiationAyng-50megaradsofgammaradiationataratenotcxcccding1mearadperhour.IWearAging-40,000operationsatmaximumoperatingprcssuredifferentialandnominalvoltageVibrationEndurance-1mQlioncycles,'distributedequallyamongthethreeorthogonalaxes,between50and100Hz,ataninputaccelerationlevelof0.75g.Thevalveswerccyckdonceevery15minutesduringthetest.'Xleywercattachedtothetablebyrigidtestfixturesusing.thestandardvalvemountingprovisions,withthesolcnoidsverticalandu>tright..Flexiblehoses~wercusedatallports;thercforc,thetestsetupdidnotaffecttheriydityormassofthcvalvesi.(bunotested.47~~~(Ia~I~~~~~~~~e!cEventSimulation-Thevalveswereattached,tothetaHebyalgidtest.fixturesusingthe~,Mdvalvemountingprovisions,withthesolenoidsverticalan8upright.Flexiblehoseswercata11ports;thercforc,thetestsct-updidnotaffecttherigidityormassofthevalvesbeingd.Theseismicshakerusedhadthefollowingminimumperformanceqharacteristicst1-2Hz~~~~I~~~~~~~~~~~~~~6"doubleampltu8c~\te~~O~0+02-33~.~~...~~~..~..35snrsec.velocityt'aiaccelerationrequired,thenconstantacceleration.(IC)peratingBasisEarthquake(OBE)-'Acvalveswereexposedtotwosinusoida>sweepsaug".(withinmachinelimits)ineachorthogonalaxisfrom1-33-1Hz,at1octaveperainotc,zone@veepwiththevalvescncrgbedandonewiththevalvesdc-cneryzed.Thctwosinemvet.'psarcdesignedtoprovidethemechanicalagingof5OBE's.Paaclof2 l'fII~~l~ISECTION2DESCRIPTIONOPTESTSAMPLESThefollovingdescrpioitionofthevalvesamplesvasprovidedbyAutomaticSwitchCo.Isomedixnumbersveremarkedonvalvehousingwithamarkerpen.t~g~~TABLE1VALVEDESCRIPTIONLISTIsomedixNo.8ASCOCat.No.HVA-206-381.-6PNP8344A71EHVA-206-380-3RPNP8320A184ENP831665ENP8321A5EDCClassHleadedcoil,Nema4,7and9solenoidenclosure,normallyclosed,3-wayconstructionvithmetalseating.DC,ClassHleadedcoil,Nema4,7and9solenoidenclosure,4-wayconstructionwithresilientseating.AC<ClassHscrewterminalcoil,Nema6solenoidenclosure,normallyclosed,3-wayconstructionvithresilientseating.AC,'lassHleadedcoil,Nema6solenoidenclosure<normallyclosed,3-wayconstructionwithresilient----seating.1DC,ClassHleadedcoil,Nema4,7and9solenoidenclosure,normallyclosed,3-vayconstructionvithresilientseating.DC,ClassHleadedcoil,Nema4,7and9solenoidenclosure,normallyclosed,3-vayconstructionvithresilientseating.NP8323A39E={SolenoidA)AC,ClassClassHscrewterminalnormallyclosed,3-wayseating.Hleadedcoil,{SolenoidB)DC,coil,Nema6solenoidenclosures,constructionwithresilient0anC4O09Irt09OIV5Qsg4nQlUlQtr9ol08'0rt0IQl0I8lA'MUlQl~piQ0IVl8cf'rtP8QV5rt800N4bQlnH0 CQCATALOQNQNP832IA1Egl25VDCB.SafeShutdownEarthquake(SSE)-Thevalveswereexposedtosinglefrequencysinusoidaltestsat1(3octavefrequencyinterv'aldwellpointswheretheg-levelwasrecordedatwhich'hecylinderportpressure(zerowhende-energizedandfullinletpressurewhenenergizedforanormaHyclosedvalve,oppositeforanormaHyopenvalve)differedfromthenominalby0,5and10%%uoofinletpressure]upto'10gmaximum).Thevalvesareconsideredtofunctionproperly~:'ptoa10jochangeincylinderpoitpressure.(Thislevelwasselectedasbeinoinsufficientto:'.causespuriousshiiftingofthecustomer'smainvalveorotherequipment).Thedurationofeach'dwellwasthetimerequiredtooperatethevalvesthroughonecompleteopenfclosecycleor15..'seconds,whicheverwaslongerMotionwasapplie8atthesamefrequencyandacceleration':"'limitsineachofthethreeorthogonalaxesseparately.~~~~~~'".'MaximumAcceleration:.-.i~~I~+Pro~~~g~..;3.0ga11conditionsV~~~~~~4,~~~~~~~o~~~~LossofCoolantAccident(LOCA)-Thevalveswereexposedtoanaccidentdoseof150megaradsofgammaradiationataratenotexceeding1megaradperhour.Thevalveswereinstalledinapres-surevesselandsubjectedtoa30-dayexposureofsteamandchemicalsprayfollowingthesuges-tionsoflEEE-382-1972(chemicalsprayperTable1(b)andtestchambertemperatureproQleperFigure1andTable2).Thevalveshadbeenpressurizedtomaximumoperatingpressureandcontin-ouslyenergizedfor4hourspriortothefirsttransient(toproducecoQsaturation).The;iwerede-energizedwhenthetemperatureoftheesttransientreached280oFtoshowsatisfactoryshiftingfordemonstrationofsafetyfunction.Thevalveswerel'eptpressurizedandwerecycledduringthe30dayexposure,assuggestedinlEEE-382-1972,todemonstratetheiraMitytooperateondemandduringtheXOCA.~~~~ThetestreportonAQS-21678isonGleatAutomaticSwitchCompany'nFlorhamPark,NewJersey,andisavailableforcustomerperusaL~.rOO'~~hI,~II~'ated~~AuthorizedSignature~te/c~~richK..PlautProjectEngineer~0Page2of2~~~0Chs'nnesvjM'pAghr%, 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