ML19308D784
| ML19308D784 | |
| Person / Time | |
|---|---|
| Site: | Crystal River  |
| Issue date: | 10/13/1975 |
| From: | Rodgers J FLORIDA POWER CORP. |
| To: | Schwencer A Office of Nuclear Reactor Regulation |
| References | |
| 11999, NUDOCS 8003180717 | |
| Download: ML19308D784 (4) | |
Text
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T NRC DISTRIBUTION FOR PART 50 DOCKET MATERI AL (TEMPORARY FORM) 11999 CONTROL NO:
FILE:_
h a wer Corp l DATE OF DOC DATE REC'D LTR TWX RPT OTHER FROM:
J.T. Rodgers 10 75 10-15-75 xx TO:
-,xx __.
Mr. A. Schwencer 1-signed SENT LOCAL PDR __xx :
CLASS MNCLASS PROPINFO INPUT NO CYS REC'D DOCKET NO:
xxxx 1
50-302 DESCRIPTION:
ENCLOSURES:
Ltr re their 8-15-75 Itr...... furn addl infc concerning documentation, test results, and any other design information pertaining to the g
substitute valves of Cryotal P.'.v r "3.....
P'LANT NAME:
Crystal River #3 FOR ACTION /INFC RlAATION 10-18-75 JGB f
DUTLER (L)
(CHWENCER (L) ZIEMANN (L)
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W/ Copies Wgopies W/ Copict W/ Copies U/ COPILS CL ARK (L)
STOLZ (L)
DICKER (E)
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VASSALLO (L)
KNIGHTON (E) spiss W/ Copics W/ Copies W/ Copics W/ Copics KNIEL (L)
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YOUNGBLOOD (E) 1px W/ Copies W/ Copics W/ Copies W/' Uopies INTERNAL DISTRIDUTION Crkn QlLE TECH REVIEW DENTON LIC ASST A/T IND.
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SALTZMAN GOSSICK/ STAFF KNIGHT K ASTN E R g GOULBOURNE (L)
MELTZ CASE PAWLICKl BALLARD P. KREUTZER (E)
GIAMBUSSO S AO SPANG LE R J. LEE (L)
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MCDONALD MOORE (L)
USTON ENVIRO S. REED (E)
CHAPMAN DEYOUNG (L)
NOVAK MULLEli M. SEhVICE (L)
DU3E (Ltr)
SKOVHOLT (L)
ROSS DICKER S. SHEPPARD (L)
E. COLf PE GOLLER (L) (Ltr)
IPPOLITO KNIGIITON M. SLATER (E)
PETERSON P. CO L LINS TEDESCO YOUNGBLOOD H. SMITH (L)
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DJNISE J. OLLIUS AN S. TEETS (L)
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E!SENHUT FILE & REGION (2)
ENAROYA 2@#r V. WILSON (L)
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October 13. 1975 j
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Mr. A. Schwencer, Chief Branch No. 2-3 Director of Nuclear Reactor Regulation U.S. Nuclesr Regulatory Commission
/D-Washington, D.C.
20555 In Re: Florida Power Corporation Crystal River Unit No. 3 Docket No. 50-302
Dear Mr. Schwencer:
On August 15, 1975, Florida Power Corporation (FPC) officially informed the Commission that we were experiencing delivery problems concerning two feedwater valves (FWV-161 and FWV-162) shown on Figure 10-2 of the Crystal River #3 FSAR.
We submitted a proposal to the Commission to install two sub-stitute valves as an interim modification to the Emergency Feedwater System with installation of the original valves FWV-161 and FWV-162 to take place at the first outage for Crystal River #3 allowing time for installation.
This interim modification is necessary in order that the com-pletion of Crystal River #3 and subsequent fuel loading is not delayed.
At our meeting with you and members of your staff in Bethesda on August 19, 1975, you indicated that our proposed interim modification as outlined in our August 15 letter was acceptable.
In addition, you requested that FPC furnish the Commission documentation, test results, and any other design information pertaining to the substitute valves.
ogg
Mr. Al Schwencer October 13, 1975 In response to your request, we offer the following:
1.
It is our estimate that five (5) working days would be required for removal of the substitute valves and the installation of the original valves FWV-161 and FWV-162.
Installation will be performed during the first outage period that allows an adequate " window" after receipt'of the original valves.
Should this window not occur, the original valves FWV-161 and FWV-162 will be installed at the first refueling outage which is scheduled for February, 1978.
2.
Fisher Controls Company has provided FPC with a Manufacturer's Certification dated August 21, 1975.
This certification states that the substitute valves were manufactured and shipped in accordance with contfact specifications and quality control standards common to the control valve industry and are free from defects in material and/or workmanship.
3.
The. substitute valves are flanged 6" globle valves with carbon steel bodies rated at 600 psi and have a design valve body pressure of 1450 psig.
The design temperature of the valve body is 450 F.
The actuation is of a pneumatic fail closed con-struction with remote operation from the control room by a 125 volt DC solenoid valve.
4.
The wall thickness of the substitute valves were measured to insure compliance with ASTM-B 16.5.
The valves were measured in accordance with FPC Procedure Q-20, Valve Ultrasonic Test, on September 4, 1975, and were found to have a wall thicknes= i n-excess of.5 inches as required by ASTM-B /
5.
The substitute valves were hydrostatically tested to insure comp iance with ASTM-B 31.1.
The valve bodies of the valves were hydrostatically tested to 2175 psig as required by ASTM-B 31.1 on September 19, 1975, and were found acceptable.
The hydrostatic tests were performed in accordance with FPC Procedure TG-000-46-2.
4 4
Mr. A.
Schwencer October 13, 1975 6.
The feedwater to which the substitute valves will be exposed is from the Emergency Feedwater System.
The_ Emergency Feedwater System takes suction from the Condenser Hotwell and Condensate Storage Tank which.are at approximately 95 F which is well below the design temperature (450*F) of the sub-stitute valves.
Should additional information concerning these substitute feedwater valves be required, please do not hesitate to contact this office.
Very truly yours, J.
Rodgers Asst. Vice President JTR/iw e
6 1
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