ML20085B926
| ML20085B926 | |
| Person / Time | |
|---|---|
| Site: | Browns Ferry, 05000000 |
| Issue date: | 07/05/1973 |
| From: | Niav Hughes TENNESSEE VALLEY AUTHORITY |
| To: | Moseley N NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| Shared Package | |
| ML20085B698 | List: |
| References | |
| NUDOCS 8307080577 | |
| Download: ML20085B926 (5) | |
Text
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) bMNESSEE VALLEY d' R1rt=00 AITY M.- 'rf 7 CHATTANCOGA, Q -
T NNESSEE i
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July 5, 1973 PARTN E F4 S HIP
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Mr. Norman C. Moseley, Director
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Directorate of Regulatory Operations U.S. Atomic Energy Cc::::nission Region II - Suite 818 230 Fenchtree Street, W.
Atlanta, Georgia 30303
Dear Mr. Moselcy:
Attentions. Secretary Per your conversation with J. T. Lence July 5, 1973, enclosed is the letter nu:nber TVA-3280 referred to in the letter to you dated July 3,1973, from J. E. Gilleland.
I We are sorry for omitting the enclosure and appreciate your calling the error to our attention.
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Very truly yours,
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i TEN 5ESSEEVALIEYAUTHORITY m.r N. B. Hughes, Director Division of Power Resource Planning Enclosure 8307000577 731116 DR ADOCK 05000 s
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. ighot[se bectric Corporation wer Systems l
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i S.O. TVA/ TEN-220 t
Mr. D. B. Weaver Chief liechanical Engineer TVA Contract No. 68C50-91934 T:nnessee Valley Authority 204 Union Building Knoxville, Tennessee 37902 J
TENNESSEE VALLEY AUTHORITY SEQUOYAH NUCLEAR PLANT UNIT HUf:BERS 1&2 LIMITOROUE VALVE OPERATORS
Dear Mr. Weaver:
In response to TVA letter no. 2590 of 12/14/72, please find attached a list of Sequoyah motor operated valves which use Limitorque
, operators.
There are forty-four (44) motor operated valves assigned to Sequoyah units 182.
These valves are used in the Reactor Coolant, Residual Heat Removal, Chemical and Volume Control and Safety Injection Systems.
....,c 7 Information of shop order numbers, operator serial numbers and dates of manufacture are not ir=ediately available; however, all Sequoyah motor operators fall within the suspect production group and it is our intention to perform corrective action on all these valves.
The
. torque switches will be replaced with switches certified by Limitoique as having correct torsion springs.
After the replacement the valves will be actuated to assure proper operation.
W will issue field instructions for the modifications. It is '
iiresently our intention that.the modifications be performed by Limitorque representatives.
The modifications can be accomplished p
pricr to installation pf the valves at some time convenient to valve k
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.J.2.si!-2 $1
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TVA/TER V0i1QUr "tHTCH MEPEKtTREfTrTOR UrYYYUTP"'Y tMEWXYdifS O
n Valve Assigned Qty.
Location fiumber ve I.D.
Operator Size Vendor Per Plant TVA TEi!
liS8Fi!
Sts-00-25 Velan 6
1-0610 2-051 1-0611 2-051 1-8110 2-811 1-8111 2-811 1-8813 2-821 1-8814 2-881 (note 1)
(+1 extra)
(+1 ex iM58Fil SMB-00-15 Velan 5'
1-8000A 2-80:
1-80008 2-30:
1-8104 2-81i:
1-8105 2-81:
1-8106 2-81C Ut42F8 SMB-00-5 Darling 5
1-0112B 2-011 (Anchor) 1-0112C 2-011 1-8100 2-91:
'l-8807A 2-83:
1-8807B 2-28:
2142F8H SMB-005 Darling 1
1-8112 2-811
- (Anchor) iM57FH SMB-00-25 Velan 2
1-8821A 2-83:
1-8821B 2-03:
Darling 3
1-0112D 2-01~
2142FB SFE-00-10 (Anchor) 1-0112E 2-01' 1-8806 2-8B(
22 units /
plant
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te l a DuetoSystemchangessubsequenttovalvemanufactureone(1} extra valve per unit has been delivered to site.
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l,.....cyailability, personnchvailability,etc.
Check-ou O proper
' ' operation is more convenient after the valves have been installed
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and the operators connected to the power source,.and should be scheduled accordingly.
Very truly yours, WESTIliGHOUSE ELECTRI CORPORATI0il f.7'/f H. P. Leonard, Engineer Hydraulic Equipment
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/rz APPROVED / cr, A<
W. E. Wrignt, Prgject Manacer Tennessec Val. ley Authority D. B. Weaver
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R. S. Patton, TVA Chatt.
IL R. E. Lyman, W rnoxville IL F.E.Rolston?11,Chatt.
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Lotter from Tenness'e Valley Authority, J. E. Gilleland, AUG 10 G e
dated July 3, 1973, 50-327 and 50-328, ROB 72-3 Letter from Tennessee Valley Authority, N. B. hughes, dated July 5,1973, with enclosure, cc w/ encl H. D. Thornburg, RO
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