ML20065S378

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: ML20065S373 ML20065S378
References
PROC-940325-01, NUDOCS 9405180252
Download: ML20065S378 (5)

Text

_ _ . _

l l

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.

]

l l

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)

_ ._