ML20086E572

Forwards List of 38 Limitorque Valve Operators Requiring Torque Switch Replacement.Replacement Should Be Completed by mid-May 1973

ML20086E572
Person / Time
Site:	05000000, Fort Saint Vrain
Issue date:	03/05/1973
From:	Walker R PUBLIC SERVICE CO. OF COLORADO
To:	Flora J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20086E559	List: ML20086E572 ML20086E587
References
NUDOCS 8312070425
Download: ML20086E572 (3)

Text

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%t PU BLIC S ERVIC E CO A1PANY OF COLORADO

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P.O 5 OM e4 O O E N vE R,

C OL ORADO 80201

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March 5, 1973 3

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' $.g Mr. John Flo ra, Direc:ot

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directorate of he'u]atory U erations, Regi on IV

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U.S. ntomic Er er ;y Cour;i ss i on

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.: '..i 10305 West Colfax, Room 200 lJo Denver, Colorado F0215 4

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Subject.

Doc k e 'c No. 5 0-2 6 ~7 4?-

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Limitorque Valve Operators r,, p.=d..

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Ref:

n EC Inquiry Deted 12-14-72 D]Jha PSC Interim Response 1-]'-73 C* *.ii.

( R. P.

Dear Mr. Flora:

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follov up to Enference (2) and e final di

icion

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for Re f erence (1), we hi-ve now identified the velves.- r 6id Fort Saint Vrain Ph a t are t c;u i p,.. d w,rh I t rr i t o ra n e o.n : n r o r :

2 N ?d navini the suspect toeque n ; ch deficieacv.

Per iho etioched

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1ist, 7F va l ve s rec,a i ce tc rque switen regiacement oi Wich j'f}

D eight (8) are in Class I service.

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N.ew torque sw2tches for all the valves listed are being

-$ m t.

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shipped today from Limitorque.

le wi l l urdertaFe replace-ment of the switches as Toc.n as piissi ble wi t h conside sa t ion, of course, to the plant tesiin; schedule and ov er a l l avail-abi ;i ty of the valves for maintenance.

It is di f ficul t at this time to predict a completion scnedule for this work a s

'e have no ex pe ri ence as to how long it will take to replace the switches, nssuming the switches are shipped on schedule, howcVer, we should conplete replacement work by mid-May 1973 We will pursue work on those valves which are safety related as a first priority, and certainly, all modi fica tion work on these eight (8) valves will be done prior to fuel loading.

Very trulv yours, 12070425 730312

)'; b ( 'n b. r RADOCK05000h R.P. Falker, Vice President 0

Engineering and Planning Electric Department

!. I :. r r s i-VA LVES " fly ! !IMin m!UR OPERAroRS, WLEI, S'.m- 00 & S Am- 000 U

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's mitorone Va!ve ()p..ia t..!

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Val ve No.

Ser. No.

Size Service Class I

'k:.lacturet; ilV-313 3-2 123315 6"

Condensate No Walworth

!!V-3135-2 123314 6"

Condensate No Wa1. orth flV-3243 123386 6"

Condensate No Walm,rth LV-3250-2 No Tag **

6" Condensete No Wanorth 3

d HV-4109 93246A 24" Circ. Water No Pratt IIV-4110 93247A 24" Circ. Water No Pratt IIV-4221-1 93242A

!24" Serv. Water No.

Pratt l

!!V-4?21-2 93243A I24" Serv. Water Yes Pratt i

18 V-4 221 - 3 93248A 30" Serv. Water No Pratt

!!V-5 355 123381 8"

Ext. Steam No Walworth i

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_Limi torcu e Va l ve Ope r at ors 3 4B-000 IIV-2'142-1 108265 14" C18. Water Yes Pratt IIV-21142-2 108267 8"

Cig. Water Yes Pratt

!!V-2114 2-3 108266 14" Cig. Water Yes Pratt IIV-2114 3 108268 10" C1g. Water Yes Walworth IIV - 3127 - 1 123379 6"

Condensate No Walworth IIV-3127-2 123380 4"

Condensate No Walworth l

2 IIV-31121 123394 4"

Condensate Yes Walworth i

LV-3250-1 No Tag **

4" Condensate No Edward flV-5101-1 100319 2)"

Aux. Steam No Edward

• • Serial Number not available.

Valve nameplate not on the valves.

.,TST OF VALVES NIT!! LTMITOROUR OPERATOR 5, MODEL SMB-UTT Ti' T, -

I,i mi orque Volve Operators SMB-O (Cont'd)

. Valve No.,

Ser. No.

Size Service Class I

'Manufact6rer IIV-5101-2 107330 2"

Aux.' Steam No

' Edward ilV-5101-3 104887 6"

Aux. Steam No llV-5131-1 98839A 1"

Main Steam No

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IIV-5131-2 107356 1"

Main Stcam No -

S.M. l"~

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?f,$ #

IIV-5132-1 98838A 1"

Main Steam No l.4:e.L..:

Main Ste'im No IIV-5132-2 107357 1"

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3L-L..I IIV-5133 107358 1"

Main Steam No.

IIV-5134 107539 1"

Main Steam No

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!!V-5135 98840A lt" Main Steam No~

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9/[Q;-

IIV-5129 93773A 2"

Main Steam No-Y Ek? O,;..

p.)....' a IIV-5250 108462 3"

Aux. Steam No Edward

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1. l((;.jj IIV-4225 93438A 12" Serv. Watdr Yes Pratt

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llV-4257 93439A 14" Serv. Water Yes Pratt IIV-31184 96940A 3/4" BPP Drains No G.E.*

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' !!V-31185 96941A

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3 IIV-31187 96942A

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IIV-31188 96939A.

3/4" IIV-31186 96943A 1"

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HV-31189 96944A 1"

BFP Drains No G.E.*

• Supplied by G.E. 'Em_ der Specification 31-P-2 9

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