ML22278A706

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Rev. 21 to Updated Final Safety Analysis Report, Drawing M-70, Revision 34, Sheet 2, P&ID Gaseous Radwaste Ambient Charcoal Treatment (Unit 1 and Common)
ML22278A706
Person / Time
Site: Limerick  
Issue date: 09/19/2022
From:
Constellation Energy Generation
To:
Office of Nuclear Reactor Regulation
Shared Package
ML22278A223 List: ... further results
References
Download: ML22278A706 (1)
v • d • e


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SEAL AIR SUPPLIED TO STEMS OF ALL PROCESS AND DRAIN PLUG VALVES. 1,4* FNPT.

2.

AIR VENT IS FLOAT OPERATED.

3.

DELETED.

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RADWASTE PIPING IS LIMITED TO THOSE LINES DESIGNATED DBD ANO EBO.

5. VENTS AND DRAINS LOCATED ON CHARCOAL ADSORBER TANKS AND CONNECTING PIPING WILL BE SEAL WELDED CLOSED FOLLOWING HYDRO TEST AND PRIOR TO LEAK TESTING IN ACCORDANCE WITH ANSl/ANS-55.4-1979.
6. PACKLESS DESIGN.
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3' SCHEDULE 160, 12 PIPE DIAMETERS IN LENGTH.

8. SPOOL PIECE WILL BE LEFT IN PLACE DURING OPERATION, OPEN PORTION OF SPECTACLE BLIND FLANGE IS INST AL LED DURING NORMAL OPERATION.
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GLYCOL MUST BE TESTED FOR pH PERIODICALLY AND THE INHIBITOR RENEWED.

10. DRAIN POT SHALL BE AS DEEP AS ALLOWED BY PIPING SLOPES INDICATED.
11. LINES 1' HCD-125 AND%' HCD-126 SHOULD BE SCHEDULE 80 FOR HYDROGEN DETONATION CONSIDERATIONS.
12. HOSE CONNECTION IS TO BE LOCATED CLOSE TO UNITS 1 AND 2 GLYCOL SKIDS. VALVE 0005 IS TO BE LOCATED BY THE HOSE CONNECTION.
13. VALVE CV-174 IS TO FAIL TO CHEMICAL WASTE TANK ON LOSS OF POWER, FAIL-AS-IS ON LOSS OF AIR. DISCHARGE TO CHEMICAL WASTE IS TO BE LOCATED C! HIGHEST VALVE DISCHARGE POINT.
14. GLYCOL SYSTEM VENTS AND DRAINS MUST DISCHARGE WITHIN CURBED BOUNDARY BENEATH GLYCOL EQUIPMENT.

15, DELETED.

16. DELETED.
17. 6" EB0-125 SHALL BE HEAT TRACED UPSTREAM OF ME-117 BUT NO CLOSER THAN 10 FT MINIMUM DOWNSTREAM OF TE-116.

SELF LIMITING HEAT TRACING RATED AT 2500 WATTS SHALL MAINTAIN GAS TEMPERATURE AT 60 9 F MINIMUM.

18. VALVES 1147 AND 2147 ARE OPERATED IN SIMULTANEOUS ACTION THAT IS CAUSED BY A U-JOINT REACH ROD MECHANISM.
19. POINT CONNECTIONS SHOWN ON DRAWING M-207-00274 SH.2.

r INCORP. EC 629380 RE\1.0.

34 z.3 ADDED ANALOG COMPUTER INPUT A3015 AND A3016.

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}' INCORP. EC 423037 REV.6 PER WO 4180185. DELETED 33 ~ XY-036-124. XR-036-101 & 102. Xl-036-101 & 102.

/11 ADDED 10-C673 ANO NOTE 19. [VARIOUS].

INCORP. ECR 02-00558 REV. I PER WO C0205707. DELETED 32 {o. TR-70-124 FROM 1A THRU G-S371. ADDED XY-036-124, XR-

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TABLE OF ADDITIONS & CHANCES USE ONLY PRINTS SHOWING LATEST DATE MECHANICAL I

P&ID GASEOUS RAOWASTE AMBIENT CHARCOAL TREATMENT

<UNIT 1 AND COMMON>

LIMERICK GENERA TING STATION EXELON NUCLEAR CORP,

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