ML19310A393: Difference between revisions
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(412) 456-6000 435 Semm Avenue Pitt,DurgM. P3-ism | 'A@ | ||
(412) 456-6000 435 Semm Avenue Pitt,DurgM. P3-ism June 3, 1980 Director of Nuclear Reactor Regulation United States Nuclear Regulatory Commission Attn: | |||
Mr. Steven A. Varga, Chief Operating Reactors Branch No. 1 Division of Licensing Washington, DC 20555 | |||
==Reference:== | ==Reference:== | ||
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Forwarded herewith is a copy of a report entitled " Inspection Report - | Forwarded herewith is a copy of a report entitled " Inspection Report - | ||
Inside Recirculation Spray Pumps" for your review. This report describes the "as found" condition of and the maintenance performed on,the subject pumps. | Inside Recirculation Spray Pumps" for your review. This report describes the "as found" condition of and the maintenance performed on,the subject pumps. | ||
The pumps showed wear on the bowl bushings which was characteristic of wear caused by pumpage containing abrasive particles. The observed damage to the bushings was probably caused during the initial flush of the Recirculation Spray System. Upon the recommendation of the pump manufacturer, a modifica-tion was made to the pumps to eliminate the flushing of the first stage bushings by second stage pumpage thus reducing the likelihood of wear of these bushings. There was no evidence of any pump damage caused by coupling, pump casing, shaft or bowl misalignment, out-of-plumb mounting, vibration, side loads or flow pertubations. | The pumps showed wear on the bowl bushings which was characteristic of wear caused by pumpage containing abrasive particles. The observed damage to the bushings was probably caused during the initial flush of the Recirculation Spray System. Upon the recommendation of the pump manufacturer, a modifica-tion was made to the pumps to eliminate the flushing of the first stage bushings by second stage pumpage thus reducing the likelihood of wear of these bushings. There was no evidence of any pump damage caused by coupling, pump casing, shaft or bowl misalignment, out-of-plumb mounting, vibration, side loads or flow pertubations. | ||
Very truly yours, | Based upon the examinations conducted and the repairs and modifications made to the pumps, Duquesne Light Company con-siders the pumps to be operable and fully capable of performing their intended function. | ||
C. ... Dunn Vice President, Operations Attachment cc: | Very truly yours, Oy% | ||
Beaver Valley Power Station | C.... Dunn Vice President, Operations Attachment cc: | ||
Shippingport, Pennsylvania 15077 | Mr. D. A. Beckman, Senior Resident Inspector U.S. Nuclear Regulatory Commission Beaver Valley Power Station Shippingport, Pennsylvania 15077 | ||
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U.S. Nuclear Regulatory Commission | \\ \\ | ||
c/o Document Management Branch Washington, D.C. | U.S. Nuclear Regulatory Commission | ||
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c/o Document Management Branch Washington, D.C. | |||
20555 80 06110/7f p}} | |||
Latest revision as of 02:00, 2 January 2025
| ML19310A393 | |
| Person / Time | |
|---|---|
| Site: | Beaver Valley |
| Issue date: | 06/03/1980 |
| From: | Dunn C DUQUESNE LIGHT CO. |
| To: | Varga S Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML19310A394 | List: |
| References | |
| NUDOCS 8006110191 | |
| Download: ML19310A393 (1) | |
Text
_ _ _ _ _ _
O h
g
'A@
(412) 456-6000 435 Semm Avenue Pitt,DurgM. P3-ism June 3, 1980 Director of Nuclear Reactor Regulation United States Nuclear Regulatory Commission Attn:
Mr. Steven A. Varga, Chief Operating Reactors Branch No. 1 Division of Licensing Washington, DC 20555
Reference:
Beaver Valley Power Station, Unit No. 1 Docket No. 50-334 Inspection Report - Inside Recirculation Spray Pumps Gentlemen:
Forwarded herewith is a copy of a report entitled " Inspection Report -
Inside Recirculation Spray Pumps" for your review. This report describes the "as found" condition of and the maintenance performed on,the subject pumps.
The pumps showed wear on the bowl bushings which was characteristic of wear caused by pumpage containing abrasive particles. The observed damage to the bushings was probably caused during the initial flush of the Recirculation Spray System. Upon the recommendation of the pump manufacturer, a modifica-tion was made to the pumps to eliminate the flushing of the first stage bushings by second stage pumpage thus reducing the likelihood of wear of these bushings. There was no evidence of any pump damage caused by coupling, pump casing, shaft or bowl misalignment, out-of-plumb mounting, vibration, side loads or flow pertubations.
Based upon the examinations conducted and the repairs and modifications made to the pumps, Duquesne Light Company con-siders the pumps to be operable and fully capable of performing their intended function.
Very truly yours, Oy%
C.... Dunn Vice President, Operations Attachment cc:
Mr. D. A. Beckman, Senior Resident Inspector U.S. Nuclear Regulatory Commission Beaver Valley Power Station Shippingport, Pennsylvania 15077
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\\ \\
U.S. Nuclear Regulatory Commission
)
c/o Document Management Branch Washington, D.C.
20555 80 06110/7f p