L-87-223, Forwards List of All Pressure Isolation Valves (PIV) & Exceptions to Test Frequencies & Leakage Limits of Pivs,Per Criteria of Generic Ltr 87-06, Periodic Verification of Leak Tight Integrity of Pivs

Forwards List of All Pressure Isolation Valves (PIV) & Exceptions to Test Frequencies & Leakage Limits of Pivs,Per Criteria of Generic Ltr 87-06, Periodic Verification of Leak Tight Integrity of Pivs

ML20214W254
Person / Time
Site:	Saint Lucie
Issue date:	06/10/1987
From:	Woody C FLORIDA POWER & LIGHT CO.
To:	NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
References
GL-87-06, GL-87-6, L-87-223, NUDOCS 8706150180
Download: ML20214W254 (4)

Text

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P. o. box 14000, JUNO BEACH, FL 334C3 0420 3=

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JUNE 10 1987 L 87-223 U. S. Nuclear Regulatory Commission Atin: Document Control Desk Washington, D. C. 20555 Gentlemen:

Re: St. Lucie Units I and 2 Docket Nos. 50-335 and 50-339 Generic Letter 87 06," Periodic Verification of Leaktight integrity of Pressure isolation Valves" NRC Generic Letter 87-06 (GL 87 06) requested that licensees provide verification of the methods by which they are assuring the lecktight integrity of all pressure isolation volves as independent barriers against abnormal leckage, rapidly propagating failure, and gross rupture of the reactor coolant pressure boundary (RCPB). Licensees were requested to submit a list of all pressure isolation volves (PlVs) in operating plants. For each valve, licensees were also requested to describe the periodic tests or other measures performed to assure the integrity of the volve os an independent barrier of the RCPB along with the acceptance criteria for leakage and frequency of test performance.

Attachment I lists all PlVs in St. Lucie Unit I and St. Lucie Unit 2.

For St. Lucie Units I and 2, the test frequency and leakage limits of all PlVs meeting the subject criteria of GL 87-06 are specified in each Unit's Technical Specificottons, except as noted in Attachment 2.

If odditional information is required on this subject, please contact us.

Very truly yours, i

Group ce President Nuclear Energy COW /EJW/gp Attachments (2) cc: Dr. J. Nelson Grace, Regional Administrator, Region 11, USNRC Senior Resident inspector, USNRC, St. Lucie Plant j l

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EJW4/032/l an FPL Group company L

STATE OF FLORIDA )

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s C. O. Woody being first duly sworn, deposes and says:

That he is a Group Vice President of Florida Power & Light Company, the Licensee herein;

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That' he hos executed the foregoing document; that the statements mode in this document are true and correct to the best of his knowledge, information, and belief, and that he is authorized to execute the document on behalf of said Licensee.

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i C. O. Wood J

4 Subscribed and worn to before me this

/_[_ day of ho ,19[2.

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. -NOTARY POBLIC, in and for the County of Palm Beach, State of Florido Utan heuc start *' lM My Commission expires:

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4 ATTACHMENT I PRESSURE ISOLATION VALVES St. Lucie Unit i St. Lucie Unit 2 V3227 I Al St HDR. CK. V3227 2Al St HDR. CK.

V3217 l A2 Si HDR. CK. V3217 2A2 SI HDR. CK.

V3237 IBl Si HDR. CK. V3237 2BI SI HDR. CK.

V3247 IB2 Si HDR. CK. V3247 2B2 St HDR. CK.

V3225 l Al SIT DISCH. CK. V3225 2Al SIT DISCH. CK.

V3215 I A2 SIT DISCH. CK. V3215 2A2 SIT DISCH. CK.

V3235 IBl SlT DISCH. CK. V3235 2BI SlT DISCH. CK.

V3245 182 SlT DISCH. CK. V3245 2B2 SIT DISCH. CK.

V3123 I Al HPSI HDR. CK. V3258 2A2 St HDR. CK.

V3113 1 A2 HPSI HDR. CK. V3259 2A2 St HDR. CK.

V3133 181 HPSI HDR. CK. V3260 2A2 51 HDR. CK.

V3143 IB2 HPSI HDR. CK. V3261 2B2 Si HDR. CK.

V3124 i Al LPSI HDR. CK. V3525 2A HOT LEG INJ. CK.

V3114 1 A2 LPSI HDR. CK. V3524 2A HOT LEG INJ. CK.

V3134 IBl LPSI HDR. CK. V3527 2B HOT LEG INJ. CK.

V3144 IB2 LPSI HDR. CK. V3226 2B HOT LEG INJ. CK.

V3480 1 A SDC RTN. ISOL. V3480 2A SDC RTN. ISOL.

V3481 1 A SDC RTN. ISOL. V3481 2A SDC RTN. ISOL.

V3652 IB SDC RTN. ISOL. V3652 2B SDC RTN. ISOL.

V3651 IB SDC RTN. ISOL. V3651 2B SDC RTN. ISOL.

EJW4/032/2

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ATTACHMENT 2 ST. LUCIE UNIT I PRESSURE ISOLATION VALVE TESTING All St. Lucie Unit i Pressure Isolation Valves (PlVs), with the exception of the shutdown cooling (SDC) return isolation volves and the safety injection tank (SIT) discharge check volves, are tested in accordance with the St. Lucie Unit i Technical Specifications, which specify the test frequency and leakage limits for the PlVs. The SDC return isolation volves and the SIT discharge check valves are not required to be tested for leakage by the Technical Specifications. They are, however, tested for leakcge in accordance with St. Lucie Unit I plant procedures (AP l-0100125A, Data Sheet 25) or are continuously monitored for indication of leakage by installed plant instrumentation, as described below.

The SDC return isolation volves are tested for a leakage rate in excess of I gpm using indication of pressure increase in isolated downstream piping with a pressure differential of greater than 200 psid. If a leakage rate of greater than I gpm is indicated, a volumetric leakage test is conducted and verified to be less than, or equal to, half the margin between the previously measured leakage rate and the maximum permissible leakage rate of S gpm. The SDC return isolation valves are tested on the same frequency as required for other PlVs by the St. Lucie Unit i Technical Specifications.

The SIT discharge check valves isolate the SIT from the Si header when Si header pressure is greater than SIT pressure. SIT pressures and levels are continuously monitored and alarmed. This instrumentation /olarms would indicate possible check volve leakage, if it were to occur.

EJW4/032/3