ML20065S378: Difference between revisions

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OUQUESNE LIGHT COMPANY 8eaver Valley Power Station Unit 2 INSERVICE TESTING (IST) PROGRAM FOR PUMP AND VALVES hW Revisicn 2C_
Pagesissued    OSC Review Date y        5V-OSC-l2                  Unit Operations Manager Review /Date
                                  ^
J If Approved by 3  2ff9f Date This " Proposed Revisicn" was made against Revision _M_ of the present Unit _2_ IST n % -.
9405180252 940511 gDR      ADOCK 0500      2
 
a BVPS-2 IST Program RELTEF REUJET    33 Valve No.:
2RSS*5 2RSS*27 Ostogory    A/P    Class        2 Functim:            Demineralized water to "A" Recirculation Spray Pump isolation valves Test Requirement:    IW-3426 and 3427(a) require Owner specified maxiraum permissible leakage rates for specific valves as a function of valve size and type, and provide the corrective action to be fo) lowed when these limits are exceeded.
Basis for Enlief:    'Ihese    valves    provide    isolation  between  the demineralizal water header arrl the "A" Recirculation Spray Pump suction and discharge piping as shown on the attached figure.          'Ihe configuration of these valves    (i.e.,    two    in  parallel) is such that individual leakage rates for each specific valve cannot    be    determined using the test method of IW-3424.          In  this    case,  assignirg maximum Prini mble leakage rates for each valve would not be practical.
Altermte Test:      Assign a maximum permissible leakage rate for both 4 inch valves as a unit to then be used as the criteria for initiating corrective actions in accordance with IW-3427 (a) .
(PROFOSED REVISION 2C)
 
s  ,
BVPS-2 IST Fragam W M htQJt3 E        33 MMDERALIZED iWITR HDHR 2RSS*29 es N
I SEFAY 2RSS-1 N
V 3 3 'IUT                  2RSS*NDV156A 2RSS-101 L M V M 2RSS*27 2RSS*E21A 1
4 0    2RSS*P21A            ,
w2 V M 2RSS*5                                            l l
E X        I "
                                                                      -    l 2RSS*NN155A (PROPOSED REVISICH 2C)
 
BVPS-2 IST PtD pam PRr.TFP MtMUmr    34 Valve No.:
2RSS*6                                                                                  (
2RSS*28                                                                                l Category    A/P    Class        2 Function:            Demineralized water to          "B" Recirculation Spray Pu:rp    i isolation valves Test Requirunent:    IW-3426 and 3427(a) require Owner specified maximum permissible leakage rates for specific valves as a
* function of valve size and type, ard provide the corrective action to be followed when.these limits are exceeded.
Basis for Relief:    'Ihese    valves      provide- isolation .between        the demineralized water header and_the "B" Recirculation Spray Punp suction and discharge piping as shown on the attached figure.            The configuration of these valves    (i.e.,      two    in    parallel). is such .that' individual leakage rates for each specific valve cannot    be  detennined using the test ' method of IW-3424.          In    this    case,    assigning maximum pominable leakage rates for each valve would not be practical.
                                                                                                      ]
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Alternate Test:      Assign a mvinn permissible leakage rate for both 4 inch valves as a unit to then be used as the criteria for initiating corrective actions in accordance with              :i IW-3427 (a) .                                                        '
i j
(PROPOSED REVISION 2C)
 
    . ', e,    '
I
              .                                    BVPS-2 IST Pr@ ram REr.T N REQUEST          34 DEMDERATir7m WA'IIR IIEAER
                                "                                          2RSS*30
                                                                                      'JO OME
                                                                              %      e y 2RSS-2 V 3 2RSS-102 L M V M 2RSS*28 2RSS*E21B O      2RSS*P21B k
w2 V 3 2RSS*6 FBCM
                                                                                    $  OWf sme 2RSS*f0V155B            !
(PROF 0 SED FEvIsIcs 2c)
_ ._}}

Revision as of 10:58, 30 March 2020

Proposed Rev 2C to Beaver Valley Power Station Unit 2 IST Program for Pump & Valves.
ML20065S378
Person / Time
Site: Beaver Valley
Issue date: 03/25/1994
From:
DUQUESNE LIGHT CO.
To:
Shared Package
ML20065S376 List:
References
PROC-940325-01, NUDOCS 9405180252
Download: ML20065S378 (5)
v • d • e


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