116MW CRITICAL CONTROL VALVES

SR. NO. Application Size

FEED CONTROL VALVES1 FEED REGULATING VALVE IN HP BFP DISCH LINE 2" 300 15 1212 FEED REGULATING VALVE IN HP BFP DISCH LINE-FULL LOAD 3" 900 115 1213 FEED REGULATING VALVE IN HP BFP DISCH LINE-LOW LOAD 2" 900 115 121

SPRAY VALVES1 HP STEAM BYPASS VALVES 6" 1500 70 48902 HP BYPASS SPRAY VALVES 2" 600 13 503 LP STEAM BYPASS VALVES 8" 150 7 1474 LP BYPASS SPRAY VALVES 1" 600 13 50

PRDS VALVES1 PRESSURE RED VALVE IN HP LINE TO AUX HEADER 2" 1500 70 4802 PRDS SPRAY CONTROL VALVES 1" 900 119 121

FEED PUMP RECIRCULATION VALVES1 RECIRCULATION VALVE FOR HP BFP 1.5" 900 115 1222 RECIRCULATION VALVE FOR LP BFP 1" 600 18 122

HEATER DRAIN VALVES & CONDENSATE SYSTEM VALVES1 MAIN CONDENSATE CONTROL VALVES 6" 300 13 482 MIN FLOW RECIRCULATION CONTROL VALVE 2" 300 13 483 EXCESS RETURN CONTROL VALVES 2" 300 13 484 DEAERATOR OVERFLOW TO DM STORAGE TANK 3" 150 7 1205 PRESSURE REDUCING VALVE TO DEAERATOR 3" 150 7 1476 PRESSURE REDUCING VALVE TO DEAERATOR 8" 150 7 1477 REHEATER INLET CONTROL VALVE 4" 300 13 1188 NORMAL MAKE UP VALVE 1" 600 10 409 DUMP MAKE UP VALVE 2" 600 10 40

Pressure Class

Operating Pressure

(kg/cm2)(g)Operating Temp (oC)

Doc No. : M-1600Rev. : P0Date : 08/05/2009

210MW CRITICAL CONTROL VALVES

SR. NO. Application Size

FEED CONTROL VALVES1 FULL LOAD FEED WATER CONTROL(MAIN) 12"X8" 2500 286 2502 FULL LOAD FEED WATER CONTROL(BYPASS) 12"X8" 2500 286 2503 LOW LOAD FEED WATER CONTROL 6"X4" 2500 285 250

SPRAY & SOOT BLOWER VALVES1 SH SPRAY STAGE I BLOCK 6"X4" 2500 265 2602 SH STAGE I SPRAY CONTROL 2.5" 2500 265 2603 SH SPRAY STAGE II BLOCK 3" 2500 265 2604 SH STAGE II SPRAY CONTROL 1.5" 2500 265 2605 RH SPRAY MAIN BLOCK 2.5" 2500 265 2606 RH BRANCH BLOCK 1.5" 2500 265 2607 RH SPRAY CONTROL 1.5" 2500 265 2608 SOOT BLOWER STEAM PR REDUCING VALVE 2" 2500 185 440

PRDS VALVES1 AUX PRDS 100% STEAM CONTROL VALVE 6"X3" 2500 SPL 165 5402 AUX PRDS 10% STEAM CONTROL VALVE 2" 2500 SPL 165 5403 AUX PRDS 100% SPRAY FLOW CONTROL VALVE 1.5" 2500 286 2504 AUX PRDS 10% SPRAY FLOW CONTROL VALVE 1" 2500 286 2505 BLOCK VALVE ON SPRAY WATER TO AUX PRDS 2" 2500 286 250

FEED PUMP RECIRCULATION VALVE1 FEED PUMP MINIMUM RECIRCULATION VALVES 4"X2" 2500 260 250

HEATER DRAIN VALVES & CONDENSATE SYSTEM VALVES1 PEGGING STEAM AUX STEAM HEADER TO DEAERATOR 6" 300 20 2302 PEGGING STEAM FROM CRH TO DEAERATOR 10" 600 48 3503 HPH-6 NORMAL DRAIN TO HPH-5 3" 600 48 2154 HPH-6 ALT DRAIN TO DEAERATOR 3" 600 48 2155 HPH-6 ALT DRAIN TO HP FLASH TANK 3' 600 48 2156 HPH-5 ALT DRAIN TO DEAERATOR 4" 300 20 1807 HPH-5 ALT DRAIN TO HP FLASH TANK 4" 300 20 1808 LPH-3 NORMAL DRAIN TO LPH-2 3" 300 8 1309 LPH-3 ALT DRAIN TO LP FLASH TANK 4" 300 8 130

10 LPH-2 NORMAL DRAIN TO LPH-1 8" 300 8 10011 LPH-2 ALT DRAIN TO LP FLASH TANK 8" 300 8 10012 DEAERATOR OVERFLOW TO LP FLASH TANK 10" 300 11 17013 MAIN CONDENSATE CONTROL 10" 300 25 5514 EXCESS CONDENSATE DUMP CONTROL 6"X4" 300 25 5515 CONDENSATE EXTRACT PUMP MIN RECIRCULATION VALVE 6" 300 25 55

Pressure Class

Operating Pressure

(kg/cm2)(g)Operating Temp (oC)

Doc No. : M-1600Rev. : P0Date : 08/05/2009

16 HP DRAINS FLASH TANK SPRAY 1" 300 25 5517 DM MAKE UP TO HOT WELL-LOW CAPACITY 2" 300 10 5018 DM MAKE UP TO HOT WELL-HIGH CAPACITY 3" 300 10 5019 CONDENSATE FOR VALVE GLAND SEALING 1.5" 300 25 55

250MW CRITICAL CONTROL VALVES

SR. NO. Application Size

FEED CONTROL VALVES1 FULL LOAD FEED WATER CONTROL(MAIN) 14"X10"2 FULL LOAD FEED WATER CONTROL(BYPASS) 14"X10"3 LOW LOAD FEED WATER CONTROL 6"X4"4 FEED REGULATING VALVE IN HP BFP DISCH LINE-FULL LOAD

SPRAY & SOOT BLOWER VALVES1 SH SPRAY STAGE I BLOCK 6"2 SH STAGE I SPRAY CONTROL 2.5"3 SH SPRAY STAGE Ii BLOCK 3"4 SH STAGE Ii SPRAY CONTROL 1.5"5 RH SPRAY MAIN BLOCK 3"6 RH BRANCH BLOCK 2"7 RH SPRAY CONTROL 2"8 SOOT BLOWER STEAM PR REDUCING VALVE 2"

PRDS VALVES1 MS PRDS SPRAY CONTROL 6"X4"2 MS PRDS SPRAY CONTROL 1.5"3 MS PRDS SPRAY CONTROL 1.5"4 CRH STEAM PRDS 2.5"5 CRH PRDS SPRAY CONTROL 1"6 CRH PRDS SPRAY CONTROL 1"

FEED PUMP RECIRCULATION VALVE1 FEED PUMP MINIMUM RECIRCULATION VALVES 4"X2"

HEATER DRAIN VALVES & CONDENSATE SYSTEM VALVES1 PEGGING STEAM AUX STEAM HEADER TO DEAERATOR 8"2 PEGGING STEAM FROM CRH TO DEAERATOR 10"3 HPH-6 NORMAL DRAIN TO HPH-5 3"4 HPH-6 ALT DRAIN TO DEAERATOR 3"5 HPH-6 ALT DRAIN TO HP FLASH TANK 3'6 HPH-5 ALT DRAIN TO DEAERATOR 4"7 HPH-5 ALT DRAIN TO HP FLASH TANK 4"8 LPH-3 NORMAL DRAIN TO LPH-2 4"9 LPH-3 ALT DRAIN TO LP FLASH TANK 4"

10 LPH-2 NORMAL DRAIN TO LPH-1 8"11 LPH-2 ALT DRAIN TO LP FLASH TANK 8"12 DEAERATOR OVERFLOW TO LP FLASH TANK 3"13 MAIN CONDENSATE CONTROL 12"14 CONDENSATE EXTRACT PUMP MIN RECIRCULATION VALVE 3"15 EXCESS CONDENSATE DUMP CONTROL 6"X3"16 HP DRAINS FLASH TANK SPRAY 1"17 EMERGENCY MAKE UP TO CONDENSATE HOT WELL 3"18 DM MAKE UP TO HOT WELL-LOW CAPACITY 3"19 DM MAKE UP TO HOT WELL-HIGH CAPACITY 4"20 EMERGENCY DM MAKE UP TO DEAERATOR21 EXCESS CONDENSATE RETURN TO CST

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22 CONDENSATE FOR VALVE GLAND SEALING

250MW CRITICAL CONTROL VALVES

FEED CONTROL VALVES2500 330 2482500 330 2482500 330 248

187 138SPRAY & SOOT BLOWER VALVES

2500 262 2602500 182 2602500 262 3502500 182 3502500 282 3502500 282 3502500 182 3502500 182 450

PRDS VALVES2500 SPL 169 5452500 SPL 267 170

2500 267 170600 48 360

2500 267 1702500 267 170

FEED PUMP RECIRCULATION VALVE2500 260 250

HEATER DRAIN VALVES & CONDENSATE SYSTEM VALVES300 14 220600 48 360600 48 215600 48 215600 48 215300 20 175300 20 175150 8 130150 8 130150 8 105150 8 105300 11 170300 27 55600 27 55300 27 55300 30 55150 8 55300 8 40150 8 40150 4.8 45

Pressure Class

Operating Pressure

(kg/cm2)(g)Operating Temp (oC)

500MW CRITICAL CONTROL VALVES

SR. NO. Application Size

FEED CONTROL VALVES1 FULL LOAD FEED WATER CONTROL(MAIN & BYPASS) 14"X10"2 LOW LOAD FEED WATER CONTROL 12"x8"

SPRAY & SOOT BLOWER VALVES1 SH SPRAY BLOCK 8"2 SH STAGE SPRAY CONTROL 4"X3"3 RH SPRAY MAIN BLOCK 4"X3"4 RH BRANCH BLOCK 3"5 RH SPRAY CONTROL 2.5"6 SOOT BLOWER STEAM PR REDUCING VALVE 4"X2"

PRDS VALVES1 MS PRDS SPRAY CONTROL2 MS PRDS SPRAY CONTROL3 MS PRDS SPRAY CONTROL data not Availabe4 CRH STEAM PRDS5 CRH PRDS SPRAY CONTROL6 CRH PRDS SPRAY CONTROL

FEED PUMP RECIRCULATION VALVE1 FEED PUMP MINIMUM RECIRCULATION VALVES

HEATER DRAIN VALVES & CONDENSATE SYSTEM VALVES1 PEGGING STEAM AUX STEAM HEADER TO DEAERATOR 12"2 PEGGING STEAM FROM CRH TO DEAERATOR 16"3 CONDENSATE PUMP MIN FLOW RECIRC VALVE 4"4 CONDENSATE FLOW TO DEAERATOR 10"5 CONDENSATE SPILL TO COND STORAGE TANK 8"6 CONDENSATE NORMAL MAKE UP 4"7 CONDENSATE EMERGENCY MAKE UP 8"8 GSC MAIN FLOW 4"9 HPH-6A & B NORMAL LEVEL 3"

10 HPH-6A & B EMERGENCY LEVEL 4"11 HPH 5A & B NORMAL LEVEL 3"12 HPH 5A & B EMERGENCY LEVEL 4"13 LPH 3 NORMAL LEVEL 3"14 LPH 3 EMERGENCY LEVEL 3"15 LPH 2 NORMAL LEVEL 6"16 LPH 2 EMERGENCY LEVEL 6"17 LPH 1 NORMAL LEVEL 8"18 LPH 1 EMERGENCY LEVEL 8"19 VALVE GLAND SEALING PRESSURE CONTROL 2"20 EQUIPMENT COOLING WATR DIFFERENTIAL PR CONTROL 12"21 DM WATER OVERHEAD LEVEL CONTROL 1.5"

SCAPH CONTROL VALVES1 SECONDARY SCAPH 8"2 PRIMARY SCAPH 4"

Doc No. : M-1600Rev. : P0Date : 08/05/2009

500MW CRITICAL CONTROL VALVES

FEED CONTROL VALVES2500 360 2002500 360 200

SPRAY & SOOT BLOWER VALVES2500 340 2602500 340 2602500 340 3502500 340 3502500 340 3502500 213 482

PRDS VALVES######

data not Availabe #########

FEED PUMP RECIRCULATION VALVE###

HEATER DRAIN VALVES & CONDENSATE SYSTEM VALVES300 20 295600 57 410600 47 47300 47 47300 47 50300 10 40150 10 40600 47 50600 57 230600 57 240300 34 190600 34 190300 4 110300 4 110300 3 90300 3 90300 3 60300 3 60300 47 50150 10 40300 10 46

SCAPH CONTROL VALVES300 20 250300 20 250

Pressure Class

Operating Pressure

(kg/cm2)(g)Operating Temp (oC)

600MW CRITICAL CONTROL VALVES

SR. NO. Application Size

FEED CONTROL VALVES1 FULL LOAD FEED WATER CONTROL(MAIN & BYPASS) 14"X10"

LOW LOAD FEED WATER CONTROL2 FEED REGULATING VALVE IN HP BFP DISCH LINE-FULL LOAD 6"X4"

SPRAY & SOOT BLOWER VALVES1 SH SPRAY STAGE I BLOCK 6"2 SH STAGE I SPRAY CONTROL 2.5"3 SH SPRAY STAGE Ii BLOCK 3"4 SH STAGE Ii SPRAY CONTROL 1.5"5 RH SPRAY MAIN BLOCK 3"6 RH BRANCH BLOCK 2"7 RH SPRAY CONTROL 2"8 SOOT BLOWER STEAM PR REDUCING VALVE 2"

PRDS VALVES1 MS PRDS SPRAY CONTROL 6"X4"2 MS PRDS SPRAY CONTROL 1.5"3 MS PRDS SPRAY CONTROL 1.5"4 CRH STEAM PRDS 2.5"5 CRH PRDS SPRAY CONTROL 1"6 CRH PRDS SPRAY CONTROL 1"

FEED PUMP RECIRCULATION VALVE1 FEED PUMP MINIMUM RECIRCULATION VALVES 4"X2"

HEATER DRAIN VALVES & CONDENSATE SYSTEM VALVESPEGGING STEAM AUX STEAM HEADER TO DEAERATOR

1 PEGGING STEAM FROM CRH TO DEAERATOR2 MAIN CONDENSATE CONTROL3 MAIN CONDENSATE CONTROL4 EXCESS CONDENSATE DUMP CONTROL5 GSC MIN FLOW RECIRCULATION6 CONDENSATE FOR VALVE GLAND SEALING7 HPH-6A NORMAL DRAIN TO HPH-5A8 HPH-6B NORMAL DRAIN TO HPH-5B9 HPH-6B ALT DRAIN TO FLASH TANK B

10 HPH-6A ALT DRAIN TO FLASH TANK B11 HPH-5A NORMAL DRAIN TO DEAERATOR12 HPH-5B NORMAL DRAIN TO DEAERATOR13 HPH-5B ALT DRAIN TO FLASH TANK A14 HPH-5A ALT DRAIN TO FLASH TANK A15 LPH-3 NORMAL DRAIN TO LPH-216 LPH-3 ALT DRAIN TO LP FLASH TANK A17 LPH-2 NORMAL DRAIN TO LPH-118 LPH-2 ALT DRAIN TO LP FLASH TANK -B19 DEAERATOR OVERFLOW TO LP FLASH TANK20 DM NORMAL MAKE UP TO HOT WELL21 DM EMERGENCY MAKE UP TO HOT WELL

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22 CRH TO AUX STEAM HEADER

600MW CRITICAL CONTROL VALVES

FEED CONTROL VALVES2500 330 248

35 1112500 330 248

SPRAY & SOOT BLOWER VALVES2500 262 2602500 182 2602500 262 3502500 182 3502500 282 3502500 282 3502500 182 3502500 182 450

PRDS VALVES2500 SPL 169 5452500 SPL 267 170

2500 267 170600 48 360

2500 267 1702500 267 170

FEED PUMP RECIRCULATION VALVE2500 260 250

HEATER DRAIN VALVES & CONDENSATE SYSTEM VALVES

28.5 33030 5030 4723 5033 50

30.1 5044 20644 206

45.3 255.245.3 255.2

16.43 17216.43 17217.8 20117.8 2012.5 1022.3 1181 78

1.2 959 163

3.3 353.3 35

Pressure Class

Operating Pressure

(kg/cm2)(g)Operating Temp (oC)

28.5 322

660 MW CRITICAL CONTROL VALVES

SR. NO. Application Size (mm)

FEED WATER SYSTEM1 FEED CONTROL STATION 250 4500 316 1902 TDBFP-A PUMP RECIRCULATION 200 4500 316 1903 TDBFP-B PUMP RECIRCULATION 200 4500 316 1904 MDBFP PUMP RECIRCULATION 200 4500 316 190

CONDENSATE SYSTEM1 CEP-1 PUMP RECIRCULATION 150 300 27.5 42.72 CEP-2 PUMP RECIRCULATION 150 300 27.5 42.73 CEP-3 PUMP RECIRCULATION 150 300 27.5 42.74 HOTWELL NORMAL MAKEUP 150 150 5 285 HOTWELL OVERFLOW TO CST 200 300 27.5 42.76 CONDENSER CURTAIN SPRAY 150 300 27.5 42.77 DEAERATOR PEGGING STEAM 200 600 56 3508 DEAERATOR OVERFLOW 150 300 13.22 183.29 DEAERATOR LEVEL CONTROL 400 300 27.5 43.6

10 DEAERATOR LEVEL CONTROL 200 300 27.5 43.611 CRH TO TDBFP COMMON LINE 300 600 56 370

HEATER DRAIN SYSTEM1 HP HEATER- 8A TO 7A 150 900 96.5 2762 HP HEATER- 8A TO FLASH TANK 150 900 96.5 2763 HP HEATER- 8B TO 7B 150 900 96.5 2764 HP HEATER- 8B TO FLASH TANK 150 900 96.5 2765 HP HEATER- 7A TO 6A 200 600 56.1 236.66 HP HEATER- 7A TO FLASH TANK 200 600 56.1 236.67 HP HEATER- 7B TO 6B 200 600 56.1 236.68 HP HEATER- 7B TO FLASH TANK 200 600 56.1 236.69 HP HEATER- 6A TO DEAERATOR 250 300 28.2 194.8

10 HP HEATER- 6A TO FLASH TANK 250 300 28.2 194.811 HP HEATER- 6B TO DEAERATOR 250 300 28.2 194.812 HP HEATER- 6B TO FLASH TANK 250 300 28.2 194.813 LP HEATER- 4 TO 3 150 150 4.74 117.514 LP HEATER- 4 TO FLASH TANK 150 150 4.74 117.515 LP HEATER- 3 TO 2A/B 150 150 4.74 117.516 LP HEATER- 3 TO FLASH TANK 200 150 4.74 117.517 HP HEATER- 2A TO FLASH TANK 150 150 0.766 91.818 HP HEATER- 2B TO FLASH TANK 150 150 0.766 91.819 HP HEATER- 2A/B TO INLET OF 3 250 300 22 91.820 HP HEATER- 1A TO CONDENSER 250 150 0.238 63.421 HP HEATER- 1A TO COND.(EMER) 250 150 0.238 63.422 HP HEATER- 1B TO CONDENSER 250 150 0.238 63.423 HP HEATER- 1B TO COND.(EMER) 250 150 0.238 63.4

Pressure Class

Operating Pressure

(kg/cm2)(g)Operating Temp

(oC)

Doc No. : M-1600Rev. : P0Date : 08/05/2009

800 MW CRITICAL CONTROL VALVES

SR. NO. Application Size

1 Condenser hotwell normal make up

2 Condensate excess dump control valve

3 CEP minimum recirculation

4 Deaerator level control valve

5 Deaerator overflow control valve

6 Deaearator pegging steam control valve

7 From CRH to TDBFP common control valve

8 Feed control valve (25% )

9 BFP minimum recirculation line control valve for MDBFP & TDBFP

10 LPH 1A & 1B normal level control valve

11 LPH 2A & 2B normal level control valve

12 LPH 1A & 1B emergency level control valve

13 LPH 2A & 2B emergency level control valve

14 LPH 3 normal level control valve

15 LPH 4 normal level control valve

16 LPH 3 emergency level control valve

17 LPH 4 emergency level control valve

18 LPH 6A & 6B normal level control valve

19 LPH 6A & 6B emergency level control valve

20 LPH 7A & 7B normal level control valve

21 LPH 7A & 7B emergency level control valve

22 LPH 8A & 8B normal level control valve

23 LPH 8A & 8B emergency level control valve

Doc No. : M-1600Rev. : P0Date : 08/05/2009

800 MW CRITICAL CONTROL VALVES

31.43 1.76 42.9

40 0.43 42

33 22.9 42

11.81 0.08 186

51.06 6.19 364

51.08 11.98 186

328 12.71 190

Pressure Class

Operating Pressure

(kg/cm2)(g)

Outlet Pressure

(kg/cm2)(g)Operating Temp (oC)