ML19317G966

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Responds to NRC 770718 Info Request Re Hpis & LPIS Required Flow Distribution Using Throttle Valves.Valves Not Used to Throttle Flow in Injection Sys at Facility
ML19317G966
Person / Time
Site: Rancho Seco
Issue date: 09/12/1977
From: Mattimoe J
SACRAMENTO MUNICIPAL UTILITY DISTRICT
To: Reid R
Office of Nuclear Reactor Regulation
References
NUDOCS 8004020626
Download: ML19317G966 (2)


Text

DISTRIBUTION AFTER ISSUANCE OF OPERATING LICENSE

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u.S. NUCLEA3 CEtuL/.TCGY COMk ' TIN DOCgTNUM M CRC NRM 196 J

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R V Reid Sacramento Municipal Utility M st.

9-12-77 Sacramento, Calif o,7 ngCrivso J J Mattimoe 9-19-77 (i.ETTER O NOTORIZE D PROP INPUT PORM NUMSER 07 CCPtES RECEIV50 Wco"IGINAL.

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i S ; 9 n ea 3ESCRIPTION ENCLOSU RE Re NRC ltr dtd 7-18-77........ advising that throttle vs.1ves are not utilized to throttle flow in high pressure & low pressure injection efstems...........

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OELD HANAUER CHECK STELLO EISENHUT SHA0 BAER BUTLER GRIMES J. COLLINS EXTERNAL DISTRIBUTION CONTROL NUMBER LPDRL h c h n N H L C&.

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O g) SACRAMENTO MUNICIPAL UTILITY DISTRICT O 62 SMUD 95813; (916) 452-3211 September 12, 1977

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SI ji,.., ' d Director of Nuclear Reactor Regulation Attention: Mr. Robert W. Reid, Chief i c u.:..

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Operating Reactors, Branch #4 U. S. Nuclear Regulatory Commission 9i Washington, D. C.

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Docket No. 50-312

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Rancho Seco Nuclear t'enerating Station, Unit No.1

Dear Mr. Reid:

Your letter of July 18, 1977 requested infonnation concerning the use of throttle valves at Rancho Seco Unit No. I to obtain the required flow distribution in the h_igh pressure and low pressure injection systems.

Valves are not utilized to throttle flow in these systems at Rancho Seco No. 1.

We therefore understand that no further action or information is required from us on this item.

Sincerely yours, Mews

.v, J.

Mattimoe Assistant General Manager and Chief Engineer

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