ML17221A762: Difference between revisions

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| document type = CORRESPONDENCE-LETTERS, INCOMING CORRESPONDENCE, UTILITY TO NRC
| document type = CORRESPONDENCE-LETTERS, INCOMING CORRESPONDENCE, UTILITY TO NRC
| page count = 6
| page count = 6
| project =
| stage = Request
}}
=Text=
{{#Wiki_filter:ACCELEEATEDDIA21BUTJONDEMONS'ZIONSYSTEMREGULATORYINFORMATIONDISTRIBUTXONSYSTEM(RIDS)ACCESSIONNBR:8805190020DOC.DATE:88/05/12NOTARXZED:NOFACXL:50-389St.LuciePlant,Unit2,FloridaPower&LightCo.AUTH.NAMEAUTHORAFFILIATION'ONWAY,W.F.FloridaPower6LightCo.RECIP.NAMERECIPIENTAFFILIATIONDocumentControlBranch(DocumentControlDesk)
==SUBJECT:==
RespondstoNRC880405secondrequest'kraddiinforeASMECodereliefrequestsforsafety-related'umps.DISTRIBUTIONCODE:A001DCOPIESRECEIVED:LTRENCLSIZE:TITLE:ORSubmittal:GeneralDistributionNOTESDOCKET,C05000389'1R'ECIPIENT"IDCODE/NAMEPD2-2LATOURIGNY,EINTERNAL:ACRSNRR/DEST/ADS7ENRR/DEST/ESB8DNRR/DEST/RSB8ENRR/PMAS/ILRB12OGC15-B-18RES/DE/EIBEXTERNAL:LPDRNSICCOPIES"LTTRENCL1011RECIPIENTIDCODE/NAMEPD2-2PDARM/DAF/LFMBNRR/DEST/CEB8HNRR/DEST/MTB9HNRR/DOEA/TSB11NUDQG~%RACTFIL01NRCPDRCOPIES'TTRENCL'51~0111111111111A+ra.&iAbT<4gF>(es,'A,IDTOTALNUMBEROFCOPIESREQUIRED:LTTR28ENCL25 P.BOX14000,JUNOBEACH,FL3340B-0420+Ml/y/fIAMAY,121988L-88-22310CFR50.55aU.S.NuclearRegulatoryCommissionAttn:DocumentControlDeskWashington,D.C.20555Gentlemen:Re:St.LucieUnit2DocketNo.50-3892ndRequestforAdditionalInformation-ASMECodeReliefReuestsforVariousSafet-RelatedPumsThepurposeofthisletteristoprovidetheadditionalinformationrequestedinyourApril5,1988letter,"RequestforAdditionalInformation-ASMECodeReliefRequestsforVariousSafety-RelatedPumps"(TACNo.64819).Attachedistheadditionalinformation.Shouldtherebefurtherquestions,pleasecontactus.Verytrulyyours,W..ConwSeniorViePresident-NuclearWFC/MSD/gpAttachmentcc:Dr.J.NelsonGrace,RegionalAdministrator,RegionII,USNRCSeniorResidentInspector,USNRC,St.LuciePlantMSD2nd.RAISS05190020SS0512PDRADOCK050003S9PDCDanFPLGroupcompany pi INFORMATIONPROVIDEDi,D~rawins-Alldrawingsarethelatestrevisionperthe"St.Lucie-UnitiMechanicalDrawingIndex"dated4/1/88orthe"St.Lucie-Unit2Drawinglist"dated3/31/88.A.ThefollowingP&IDsareattachedasrequested:~grawinNo.2998-G-0792998-G-0792998-G-0792998-G-0792998-G-0792998-G-0792998-G-0802998-G-0802998-G-086-2998-G-0888770-G-0862998-G-078110(originallyE-13172-310-110)'51616161315MainSteamMainSteamExtractionSteamExtractionSteamAuxiliarySteamAirEvacuation18Feedwater151618FeedwaterDieselFuelOil(Unit2)ContainmentSpray17DieselFuelOil(Unit1)ReactorCoolant2998-G-078121(originallyE-13172-310-121)2ChemicalandVolumeControl2998-G-078122(original1yE-13172-310-122)2998-G-078130(originallyE-13172-310-130)2998-G-078131(original1yE-13172-310-131)1ChemicalandVolumeControl2SafetyInjectionSafetyInjection B.Thefollowingpipingisometricsrequestedareattachedfortheidentifiedlines-PieIsometricNo.Sht.No.Rev.No.LineNo.~Sstem2998-G-125SI-N-1314I-3"-SI-156HPSI,LPSICommonHiniflowLine(BPumps)2998-G-1252998-G-1252998-G-1252998-G-1252998-C-124SI-N-1221SI-N-1221CS-K-321CS-K-912BF-3I-3"-SI-2006"-CS-5006"-CS-5006"-CS-500I-2"-BF-47HPSI,LPSICommonHiniflowLine(APumps)LPSI,ContainmentSprayRecirc.LineLPSI,ContainmentSprayRecirc.LineLPSI,ContainmentSprayRecirc.AFWPumpCommonHiniflowLine 2.VendorRecommendedMinimumAllowableFlowRatesPumpVendorMinimumAllowablesFlowRate*SourceHPSIBingham-Willamette430GPMInstructionManual&#xb9;2998-6738LPSIIngersoll-Rand100GPHInstructionManual&#xb9;2998-5946ContainmentSprayIngersoll-Rand150GPHInstructionManual&#xb9;2998-4509AuxiliaryFeedwater(A&B-motordriven)Ingersoll-Rand50GPHInstructionManual&#xb9;2998-6963AuxiliaryFeedwater(C-steamdriven)Ingersoll-Rand70GPHInstructionManual&#xb9;2998-6964Thevaluegivenfortheminimumallowableflowrateofeachpump,accordingtothevendors,isthatflowrequiredtopreventthepumpfromoverheating.Topreventoverheatingandpossiblepumpseizure,regardlessofsystem.demand,arecirculationlinearoundthepump(orbypassline)isprovidedinthepipingsystem.Thisservestoinsurethataflowrate(generallycalled"minimumflow","bypassflow,"or"minimumcontinuousflow"),ismaintainedthruthepump,intheeventthatthedischargevalvingiscompletelyclosedorthereisnodemandbythesystem(pumpremainingatshut-off,i.e.,zeroflow).Thisminimumflowwascalculatedby.eachvendortopreventharmful.temperatureriseinthepumpduetotheenergy(horsepower)beingdeliveredtothewaterbythepump.Theheat,generatedbythepump,canberejectedbythecoolingactionofthevesselreceiving"minimumflow"viathebypassl,ine;thusthetemperaturedifferentialbetweensuctionanddischargeconnectionscanbeheldconstantwithinacceptablelimits,consistentwithothersystemparameters.
}}
}}

Revision as of 20:53, 25 April 2018

Responds to NRC 880405 Second Request for Addl Info Re ASME Code Relief Requests for safety-related pumps.W/21 Oversize Drawings
ML17221A762
Person / Time
Site: Saint Lucie NextEra Energy icon.png
Issue date: 05/12/1988
From: CONWAY W F
FLORIDA POWER & LIGHT CO.
To:
NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
Shared Package
ML17221A763 List:
References
L-88-223, TAC-64819, NUDOCS 8805190020
Download: ML17221A762 (6)


Text

ACCELEEATEDDIA21BUTJONDEMONS'ZIONSYSTEMREGULATORYINFORMATIONDISTRIBUTXONSYSTEM(RIDS)ACCESSIONNBR:8805190020DOC.DATE:88/05/12NOTARXZED:NOFACXL:50-389St.LuciePlant,Unit2,FloridaPower&LightCo.AUTH.NAMEAUTHORAFFILIATION'ONWAY,W.F.FloridaPower6LightCo.RECIP.NAMERECIPIENTAFFILIATIONDocumentControlBranch(DocumentControlDesk)

SUBJECT:

RespondstoNRC880405secondrequest'kraddiinforeASMECodereliefrequestsforsafety-related'umps.DISTRIBUTIONCODE:A001DCOPIESRECEIVED:LTRENCLSIZE:TITLE:ORSubmittal:GeneralDistributionNOTESDOCKET,C05000389'1R'ECIPIENT"IDCODE/NAMEPD2-2LATOURIGNY,EINTERNAL:ACRSNRR/DEST/ADS7ENRR/DEST/ESB8DNRR/DEST/RSB8ENRR/PMAS/ILRB12OGC15-B-18RES/DE/EIBEXTERNAL:LPDRNSICCOPIES"LTTRENCL1011RECIPIENTIDCODE/NAMEPD2-2PDARM/DAF/LFMBNRR/DEST/CEB8HNRR/DEST/MTB9HNRR/DOEA/TSB11NUDQG~%RACTFIL01NRCPDRCOPIES'TTRENCL'51~0111111111111A+ra.&iAbT<4gF>(es,'A,IDTOTALNUMBEROFCOPIESREQUIRED:LTTR28ENCL25 P.BOX14000,JUNOBEACH,FL3340B-0420+Ml/y/fIAMAY,121988L-88-22310CFR50.55aU.S.NuclearRegulatoryCommissionAttn:DocumentControlDeskWashington,D.C.20555Gentlemen:Re:St.LucieUnit2DocketNo.50-3892ndRequestforAdditionalInformation-ASMECodeReliefReuestsforVariousSafet-RelatedPumsThepurposeofthisletteristoprovidetheadditionalinformationrequestedinyourApril5,1988letter,"RequestforAdditionalInformation-ASMECodeReliefRequestsforVariousSafety-RelatedPumps"(TACNo.64819).Attachedistheadditionalinformation.Shouldtherebefurtherquestions,pleasecontactus.Verytrulyyours,W..ConwSeniorViePresident-NuclearWFC/MSD/gpAttachmentcc:Dr.J.NelsonGrace,RegionalAdministrator,RegionII,USNRCSeniorResidentInspector,USNRC,St.LuciePlantMSD2nd.RAISS05190020SS0512PDRADOCK050003S9PDCDanFPLGroupcompany pi INFORMATIONPROVIDEDi,D~rawins-Alldrawingsarethelatestrevisionperthe"St.Lucie-UnitiMechanicalDrawingIndex"dated4/1/88orthe"St.Lucie-Unit2Drawinglist"dated3/31/88.A.ThefollowingP&IDsareattachedasrequested:~grawinNo.2998-G-0792998-G-0792998-G-0792998-G-0792998-G-0792998-G-0792998-G-0802998-G-0802998-G-086-2998-G-0888770-G-0862998-G-078110(originallyE-13172-310-110)'51616161315MainSteamMainSteamExtractionSteamExtractionSteamAuxiliarySteamAirEvacuation18Feedwater151618FeedwaterDieselFuelOil(Unit2)ContainmentSpray17DieselFuelOil(Unit1)ReactorCoolant2998-G-078121(originallyE-13172-310-121)2ChemicalandVolumeControl2998-G-078122(original1yE-13172-310-122)2998-G-078130(originallyE-13172-310-130)2998-G-078131(original1yE-13172-310-131)1ChemicalandVolumeControl2SafetyInjectionSafetyInjection B.Thefollowingpipingisometricsrequestedareattachedfortheidentifiedlines-PieIsometricNo.Sht.No.Rev.No.LineNo.~Sstem2998-G-125SI-N-1314I-3"-SI-156HPSI,LPSICommonHiniflowLine(BPumps)2998-G-1252998-G-1252998-G-1252998-G-1252998-C-124SI-N-1221SI-N-1221CS-K-321CS-K-912BF-3I-3"-SI-2006"-CS-5006"-CS-5006"-CS-500I-2"-BF-47HPSI,LPSICommonHiniflowLine(APumps)LPSI,ContainmentSprayRecirc.LineLPSI,ContainmentSprayRecirc.LineLPSI,ContainmentSprayRecirc.AFWPumpCommonHiniflowLine 2.VendorRecommendedMinimumAllowableFlowRatesPumpVendorMinimumAllowablesFlowRate*SourceHPSIBingham-Willamette430GPMInstructionManual¹2998-6738LPSIIngersoll-Rand100GPHInstructionManual¹2998-5946ContainmentSprayIngersoll-Rand150GPHInstructionManual¹2998-4509AuxiliaryFeedwater(A&B-motordriven)Ingersoll-Rand50GPHInstructionManual¹2998-6963AuxiliaryFeedwater(C-steamdriven)Ingersoll-Rand70GPHInstructionManual¹2998-6964Thevaluegivenfortheminimumallowableflowrateofeachpump,accordingtothevendors,isthatflowrequiredtopreventthepumpfromoverheating.Topreventoverheatingandpossiblepumpseizure,regardlessofsystem.demand,arecirculationlinearoundthepump(orbypassline)isprovidedinthepipingsystem.Thisservestoinsurethataflowrate(generallycalled"minimumflow","bypassflow,"or"minimumcontinuousflow"),ismaintainedthruthepump,intheeventthatthedischargevalvingiscompletelyclosedorthereisnodemandbythesystem(pumpremainingatshut-off,i.e.,zeroflow).Thisminimumflowwascalculatedby.eachvendortopreventharmful.temperatureriseinthepumpduetotheenergy(horsepower)beingdeliveredtothewaterbythepump.Theheat,generatedbythepump,canberejectedbythecoolingactionofthevesselreceiving"minimumflow"viathebypassl,ine;thusthetemperaturedifferentialbetweensuctionanddischargeconnectionscanbeheldconstantwithinacceptablelimits,consistentwithothersystemparameters.