ML19270G028
| ML19270G028 | |
| Person / Time | |
|---|---|
| Site: | Crystal River  |
| Issue date: | 05/01/1979 |
| From: | Stewart W FLORIDA POWER CORP. |
| To: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| References | |
| NUDOCS 7905290493 | |
| Download: ML19270G028 (2) | |
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re A Mr. J. P. O'Reilly
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e,u.umcc Director I a. a cutetui U. 5. Nuclear Itc9ulatory Comuission p
- r. a. stuA Officc of Inspectton and tnforcement F. L WG Suitc 3100 E L M#
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Atlanta, GA 30303 L49J 3
Subject:
Crys.1al River Unit 3 ggy Docket Ho. 50-302 Operating License No. DPR-72 If Dulletin 79-04 Ucar Mr. O'Reilly:
Attactied please find our response to 1E Bulletin 79-04, dated March 30 1979.
Should there be any,iucstions. please. contact us.
Very truly yours, I LORIDA P0nftit CORI' ORA 110H
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LO. 'sb U4)U H. P. Stcwart Director Nucicar Operations ECSchc103 D65 Attachnents cc:
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s IPC Rc_syonse to it ilulletiti 79-04 1he fo11 erring is a listing of valve tag numbers msociated with Velan 1.ngineering Corporation swing check valves used in scismic categnry 1The listing aho piping systeiiis for the Cryst al River 3 nuclear station.reficcts the valv the W. W. P,isula, piping syst rm along with the final (1LX 705-875668 to Mr.Iteview of this purchasing Agent of IPC frnm Velan) valve weights.
original /tinal data indicates that the weights for HVV 1. 7, and 11 have nnt been conservatively represented in the scismic analysis input. Wicreas MOV G5,162 an.d St V BG were conservatively considered.
VALYL At(AtYSIS VAlV1 W 1 Gill VAtVt u IGill T AG I40._
10 tit 11rlCA11014 CODE
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US lbs.
150V 1 CitGB; Cit 70 60 lbs.
Bh Ibs.
HUV 7 Cit 0D; CitG9 50 lbs.
US lbs.
MUV 11 01460; CR69 MUV 65 Cit 144 170 lbs.
170 lbs.
ttUV 162 CR125 150 lbs.
13b lbs.
90 lbs.
80 lbs.
SiV BG CR107 In order to evaluate the seisiiiic response of a typical pipin (f(ote:
Cit 69 includes of 85 lbs. and the appropriate floor response curve.botti HUV 7 and M The results of this rtanalysis indicate the piping stresses to be very close to the original valves (less than 5%) and well within the seismic With these results and the conservative scismic stress criterir s; sed f or Crystal River 3, no further reanalysis was considered.
stress allowabic.
This scismic analysis, both original and final, was performed using " pipe Stress Analysis M003", a Gilbert /Comnonwealth proprietary computer program.
LCsekc103(U65)
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