ML18155A247

Forwards Addl Info Requested on 790508 Re Pressurizer Code Safety Valves & Main Feedwater Sys

ML18155A247
Person / Time
Site:	Palisades
Issue date:	05/10/1979
From:	Dewitt R, Hoffman D CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.)
To:	Ziemann D Office of Nuclear Reactor Regulation
References
TASK-07-03, TASK-7-3, TASK-RR NUDOCS 7905150309
Download: ML18155A247 (3)

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consumers Power company General Offices: 212 West Michigan Avenue, .Jackson, Michigan 49201

• Area Code 517 788-0550 May 10, 1979 Director, Nuclear Reactor Regulation Att Mr Dennis L Ziemann, Chief Operating Reactors Branch No 2 US Nuclear Regulatory Commission Washington, DC 20555 DOCKET 50-255 - LICENSE DPR PALISADES PLANT - ADDITIONAL INFORMATION PERTAINilJG TO NRC LIST DATED MAY 4, 1979 Attached is Consumers Power Company's response to your request for additional information telecopied to us on May 8, 1979.

R B DeWitt Manager, Production-Nuclear

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David P Hofffman Assistant Nuclear Licensing Administrator CC JGKeppler, USNRC 790515 0 >67

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• ITEM 1 Provide following information for Pressurizer Code Safety Valves:

l. Number - 3

2. Capacity - 230,000 lb/h Each

3. Set Points - 2485, 2525 and 2565 ~sig

4. Manufacturer and Model - Dresser/Consolidated Valve Division -

Model 31 739 A-1.

5. Indications of Position - Downstream Temperature Indication (Alarm in Control Room)

6. Challenger - None

7. Experience of Two Phase or Subcooled Discharge - None ITEM 2 Provide data for the table below:

• MAIN FEED-WATER SYSTEM Pumps Type Single Stage Centrifugal (2)

Capacity 13,500 Gpm at 5000 r/min Shut-off Head 2,640 Ft at 5000 r/min Drives Type Steam Supply Main Steam Line/HP Turbine Exhaust Exhaust Main Condenser Trips Low Suction Pressure Condenser Low Vacuum High Thrust Over speed Manual - Local and Remote Block Valve: (Mfg/Type/ Walworth Model 5232 P SB-WE/

Fail Position/Pas Indication) Air Operated Gate/As Is/Yes Condensate Pumps: Two Pumps/No Strainers (No/Strainers)

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• 2

• Demineralizers (No/No for Full Power/Mfg) 4/3/DeLaval (Bypass/Operation/ Yes/Air Operated Valve/As Is Fail Position)

FW Heaters (Bypass/ Yes/Manual/As Is Operation/Fail Position)

Booster Pumps (No) None Control Valves (Feed-Water Reg Valves) Vertical Mounted - 1 Per Feedwater Train/

(Arrangement/Operation) Electro-Pneum~tic Pressurizer PORV Closed/Yes/Yes-RTDs Installed Downstream Fail Position/Tested/ of PORVs/Ind and Alarm in Control Room Temp Ind/Alarm-Location)