ML19322B631: Difference between revisions
StriderTol (talk | contribs) Created page by program invented by StriderTol |
StriderTol (talk | contribs) Created page by program invented by StriderTol |
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{{#Wiki_filter:m | {{#Wiki_filter:m | ||
. / Duzz POWER COMPm | . / Duzz POWER COMPm | ||
</, Powna Burt.orno | </, Powna Burt.orno | ||
,' 4aa SouTu Cauncu SrazzT, CuAnzartz, N. C. asaos A. C. THtES ' | ,' 4aa SouTu Cauncu SrazzT, CuAnzartz, N. C. asaos A. C. THtES ' | ||
saNeOR vice PWationNr P. O. Box 217e PROOuCr80N AND TRANSe8aSSION | saNeOR vice PWationNr P. O. Box 217e PROOuCr80N AND TRANSe8aSSION February 22, 1973 . | ||
. Mr. John G. Davis Directorate of Regulatory Operations U. S. Atomic Energy Commission Region II, Suite 818 230 Peachtree Street, Northwest Atlanta, Georgia 30303 Re: RO:II:JGD 50-269 | |||
February 22, 1973 . | |||
. Mr. John G. Davis Directorate of Regulatory Operations U. S. Atomic Energy Commission Region II, Suite 818 230 Peachtree Street, Northwest Atlanta, Georgia 30303 Re: RO:II:JGD | |||
50-269 | |||
==Dear Mr. Davis:== | ==Dear Mr. Davis:== | ||
With my letter of January 12, 1973, ten copies of the report summarizing our program of valve wall thickness measurements for Oconee 1 were for-warded to your office. Enclosed are ten copies of Revision #1 to this report. Please update the report by inserting these revised pages. | With my letter of January 12, 1973, ten copies of the report summarizing our program of valve wall thickness measurements for Oconee 1 were for-warded to your office. Enclosed are ten copies of Revision #1 to this report. Please update the report by inserting these revised pages. | ||
The Crane wall thickness calculations for the four core flood check valves as submitted in the original report as part of Attachment 4 employed the most severe desip condi* ions of 2500 psig at 6500F. | The Crane wall thickness calculations for the four core flood check valves as submitted in the original report as part of Attachment 4 employed the most severe desip condi* ions of 2500 psig at 6500F. | ||
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~ | ~ | ||
Very truly yours, | Very truly yours, | ||
$. $. / + | $. $. / + | ||
r-e# | r-e# | ||
A. C. Thies 1 | A. C. Thies 1 | ||
ACT:vr . . | ACT:vr . . | ||
Enclosures cc: Mr. W. S. Lee Mr. R. L. Dick :- | Enclosures cc: Mr. W. S. Lee Mr. R. L. Dick :- | ||
Mr. W. H. Owen Mr. E. D. Powell 7912040 6'873 | Mr. W. H. Owen Mr. E. D. Powell 7912040 6'873 | ||
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Revision as of 03:05, 1 February 2020
| ML19322B631 | |
| Person / Time | |
|---|---|
| Site: | Oconee  |
| Issue date: | 02/22/1973 |
| From: | Thies A DUKE POWER CO. |
| To: | Jennifer Davis NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| Shared Package | |
| ML19322B629 | List: |
| References | |
| NUDOCS 7912040653 | |
| Download: ML19322B631 (1) | |
Text
m
. / Duzz POWER COMPm
</, Powna Burt.orno
,' 4aa SouTu Cauncu SrazzT, CuAnzartz, N. C. asaos A. C. THtES '
saNeOR vice PWationNr P. O. Box 217e PROOuCr80N AND TRANSe8aSSION February 22, 1973 .
. Mr. John G. Davis Directorate of Regulatory Operations U. S. Atomic Energy Commission Region II, Suite 818 230 Peachtree Street, Northwest Atlanta, Georgia 30303 Re: RO:II:JGD 50-269
Dear Mr. Davis:
With my letter of January 12, 1973, ten copies of the report summarizing our program of valve wall thickness measurements for Oconee 1 were for-warded to your office. Enclosed are ten copies of Revision #1 to this report. Please update the report by inserting these revised pages.
The Crane wall thickness calculations for the four core flood check valves as submitted in the original report as part of Attachment 4 employed the most severe desip condi* ions of 2500 psig at 6500F.
However, this is true only for the two valves adjacent to the reactor (valves 1/53/2 and 4). The design' conditions for valves 1/53/1.and 3 <
are 2500 psig at 300 F. Using these conditions, the. required wall I thickness for valves 1/53/1 and 1/53/3 is calculated to be 1.60 in.
This new calculation should become part of those calculations performed by Crane. The design conditions incorporated in the new calculation are not detrimental to the other analyses presented in Attachment 4 of
~l the subject report.
~
Very truly yours,
$. $. / +
r-e#
A. C. Thies 1
ACT:vr . .
Enclosures cc: Mr. W. S. Lee Mr. R. L. Dick :-
Mr. W. H. Owen Mr. E. D. Powell 7912040 6'873
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