Pressure Reducing and Desuperheating Valves Solutions for Steam Conditioning Applications Energy Conservation Environment Process Efficiency www.forbesmarshall.com Forbes Marshall Forbes Marshall Arca Forbes Marshall Codel Krohne Marshall Spirax Marshall Forbes Vyncke
For over six decades, Forbes Marshall has been building steam engineering and control instrumentation solutions that work for process industries. Today we have evolved into a leader in process efficiency and energy conservation through technology tie-ups and focused investments in manufacturing and research. Our joint ventures with the world's leading names enable us to deliver quality solutions in 18 countries. Forbes Marshall is unique in having extensive expertise in both steam and control instrumentation. The dual expertise has allowed us to engineer industry specific systems that focus on energy efficiency and utilities management for diverse sectors such as textiles, food processing, paper, power, mining, oil and gas, and chemicals. Our teams consist some of the finest engineers and talent. These highly trained professionals have developed innovative solutions to better process efficiencies and help save millions of dollars for our clients. Our business practices and processes have combined into a singular philosophy of being trusted partners who provide innovative solutions. It's a philosophy we are proud to live up to. We have long standing partnerships with some of the best names in the control instrumentation industry such as Spirax, Arca, Codel, Krohne and Shinkawa, to develop, design and supply innovative solutions for measurement and monitoring of process parameters. With a combination of specialist knowledge and the latest technology, we provide products and solutions to achieve optimum efficiency. Our products are a unique combination of hardware and software that make them reliable and accurate. How is it different from conventional pressure reducing and desuperheating? The conventional method of pressure reducing and desuperheating steam calls for a pressure reducing valve followed by a desuperheater. Forbes Marshall brings the most advanced method to reduce pressure and temperature of steam in a single unit called a 'Combined PRDS. During the process of pressure reduction in the valve water is simultaneously injected into a highly turbulent zone called the 'Vena Contracta'. This causes instantaneous evaporation of water for complete desuperheating. PRDS Valve Series Series 540- Water entry from top of PRDS : For high steam pressure drop and high spray water quantity requirement. Series 520- Water entry from bottom of PRDS : a. Through stem : For low steam pressure drop and high or low spray water quantity requirement. b. Through nozzle: For high steam pressure drop and low water quantity requirement (Available only in valve sizes 25NB (1") and 50NB (2"). Features Pressure reduction and desuperheating in a single valve Immediate response to flow changes No waterhammer No water carryover problems Efficient mixing of spray water Compact design Reduces need for separate desuperheater which reduces labour Reduces length of piping because of elimination of separate desuperheater Typical Applications Turbine Bypass Condensor Dump Main Steam Line Turbine Extraction Auxiliary PRDSH Deaerator Pegging Ejector and Gland Sealing Available in various types like water entry from top or bottom as per water quantity and pressure available at site Water is injected at the 'Vena Contracta' point which is the most turbulent zone causing complete atomization High turndown ratio possible Improved rate of heat transfer Easy maintenance Some designs don't contain a nozzle which avoids possibility of choking
Dimensions and Weight of Combined PRDS Valve E WATER C2 STEAM C1 STEAM B C B B STEAM WATER A A 540 series 520 series A WATER Series 540 - Combined PRDS Valve - water entry through top Ansi Class #300 #600 Size Size A A B B C C E E Wt Wt A A B B C C E E Wt Wt (NB) (Inch) mm Inch mm Inch mm Inch mm Inch Kgs Lbs mm Inch mm Inch mm Inch mm Inch Kgs Lbs 50 2 267 10.5 100 3.9 228 8.9 74 2.9 38 83.7 286 11.2 133 5.2 221 8.7 74 2.9 52 114.6 80 3 317 12.4 120 4.7 282 11.1 74 2.9 58 127.8 356 14.0 181 7.1 275 10.8 74 2.9 90 198.4 100 4 369 14.5 184 7.2 286 11.2 74 2.9 81 178.5 394 15.5 218 8.5 310 12.2 74 2.9 161 355.0 150 6 473 18.6 180 7.0 356 14.0 63 2.4 144 317.4 508 20.0 239 9.4 400 15.7 63 2.4 327 721.0 200 8 568 22.3 220 8.6 375 14.7 63 2.4 215 694.4 610 24.0 308 12.1 448 17.6 63 2.4 545 1201.5 250 10 708 27.8 317 12.4 504 19.8 65 2.5 468 1031.7 787 31.0 304 11.9 645 25.4 133 5.2 1080 2381.0 300 12 775 30.5 341 13.4 659 25.9 133 5.2 728 1605.0 - - - - - - - - - - Ansi Class #900 #1500 Size Size A A B B C C E E Wt Wt A A B B C C E E Wt Wt (NB) (Inch) mm Inch mm Inch mm Inch mm Inch Kgs Lbs mm Inch mm Inch mm Inch mm Inch Kgs Lbs 50 2 375 14.7 89 3.5 221 8.7 74 2.9 59 130.0 - - - - - - - - - - 80 3 381 15.0 182 7.1 275 10.8 74 2.9 105 231.4 470 18.5 187 7.3 283 11.1 74 2.9 129 284.4 100 4 457 18.0 218 8.5 310 12.2 74 2.9 191 421.0 - - - - - - - - - - 150 6 610 24.0 220 8.6 408 16.0 82 3.2 380 837.7 787 31.0 284 11.1 408 16.0 82 3.2 395 870.8 Series 520 - Combined PRDS Valve- water entry through bottom Ansi Class #300 #600 Size Size A A B B C2 C2 C1 C1 Wt Wt A A B B C2 C2 C1 C1 Wt Wt (NB) (Inch) mm Inch mm Inch mm Inch mm Inch Kgs Lbs mm Inch mm Inch mm Inch mm Inch Kgs Lbs 25 1 197 7.7 219 8.6 81 3.1 166 6.5 14 30.8 210 8.2 190 7.4 133 5.2 159 6.2 24 52.9 50 2 267 10.5 253 9.9 121 4.7 225 8.8 37 81.5 286 11.2 279 11.0 131 5.1 189 7.4 51 112.4 80 3 317 12.4 263 10.3 142 5.6 247 9.7 58 127.8 - - - - - - - - - - 100 4 369 14.5 274 10.7 152 6.0 257 10.1 79 174.1 394 15.5 334 13.1 225 8.8 303 12.0 161 354.9 150 6 473 18.6 364 14.3 213 8.4 339 13.3 144 317.4 - - - - - - - - - - 200 8 568 22.3 355 13.9 244 9.6 369 14.5 215 474.0 - - - - - - - - - - 250 10 708 27.8 424 16.7 320 12.6 468 18.4 467 1029.5 - - - - - - - - - - 300 12 775 30.5 555 21.8 388 15.2 - - 867 1911.4 - - - - - - - - - - Ansi Class #900 #1500 Size Size A A B B C2 C2 C1 C1 Wt Wt A A B B C2 C2 C1 C1 Wt Wt (NB) (Inch) mm Inch mm Inch mm Inch mm Inch Kgs Lbs mm Inch mm Inch mm Inch mm Inch Kgs Lbs 25 1 273 10.7 190 7.4 133 5.2 159 6.2 34 74.9 273 10.7 190 7.4 133 5.2 161 6.3 38 83.7 50 2 375 14.7 205 8.0 - - 189 7.4 59 130.0 - - - - - - - - - - Notes: C2 = Without cooling fins, C1 = With cooling fins Mentioned weight is for subassembly of PRDS. Bottom entry through nozzle design is available only in 25 NB (1") and 50 NB (2") sizes.
Universal Diaphragm Actuator - Series UI, UIII UV High actuating power at an affordable cost Forbes Marshall universal diaphragm actuator series UI, UIII UV features a pneumatic actuator designed for applications that demand high actuating power. Its optional reinforced spring with compact air chamber delivers up to 2500 kgf (14000 lbf) thrust force for extreme pressure control applications. These diaphragm actuators can be fitted with standard accessories like positioner, feed-back transmitter, limit switches and airfilter regulator. Optional hand wheel is provided for emergency operation. Actuator Technical Information Temperature range -13ºC to 90ºC (8.6ºF to 194ºF) Maximum operating pressure 6 bar (g) (87.02 psi) Linearity < 2% Hysterisis Max. 3% Air supply connection ¼" NPT* *Others available on request Materials Diaphragm housing Diecast Aluminium Diaphragm Purbunan Rubber Springs Stainless Chrome Steel Spindle Stainless Chrome Steel Yoke Carbon Steel H0 H D AIR TO OPEN H - Without Hand wheel AIR IN Fig. 4 H0 H D AIR TO CLOSE H + HO - With Hand wheel H+HO H D UI-20 630 (24.8) 495 (19.4) 270 (10.6) UI-30 640 (25.1) 505 (19.8) 270 (10.6) UIII-30 920 (36.2) 723 (28.4) 392 (15.4) UIII-60 950 (37.4) 753 (29.6) 392 (15.4) UV-60 1290 (50.7) 995 (39.1) 530 (20.8) UV-100 1300 (51.1) 1005 (39.5) 530 (20.8) *All dimensions in mm (Inches) Features : Field reversible - Flexible control action High thrust forces - Usable in extreme pressure reductions Low maintenance - Less inventory Cast aluminum housing - Light weight corrosion resistant Thrust force Kgs (lbs) - Air to Close AIR IN Air Supply Standard Standard Standard Range Bar UI-20 UI-30 UIII-30 UIII-60 UV-60 UV-100 (Psi) 0.2-1.0 Bar 0.2-1.0 Bar 0.2-1.0 Bar (2.9-14.4 Psi) (2.9-14.4 Psi) (2.9-14.4 Psi) 2.8 (40.6) 560 (1232) 1270 (2794) 2540 (5588) 3.0 (43.5) 620 (1364) 1410 (3102) 2820(6204) 3.5 (50.7) 776 (1707.2) 1760 (3872) 3525 (7755) 4.0 (58.0) 930 (2046) 2115 (4653) 4230 (9306) 4.5 (65.2) 1085 (2387) 2470 (5434) 4935 (10857) 5.0 (72.5) 1240 (2728) 2820 (6204) 5640 (12408) 5.5 (79.7) 1395 (3069) 3170 (6974) 6345 (13959) 6.0 (87.0) 1550 (3410) 3525 (7755) 7050 (15510) Thrust force - Air to Open Actuator Model Spring Range Bar g (psi) Air to Open Spring to Close From To Thrust Force Kgs (lbs) UI-20.n 0.2 (2.9) 1 (14.5) 60 (132) UI-20.n 0.4 (5.8) 1.2 (17.4) 125 (275) UI-20.n 0.6 (8.7) 1.4 (20.3) 185 (407) UI-20.n 0.8 (11.6) 1.6 (23.2) 250 (550) UI-20.n 1 (14.5) 1.8 (26.2) 310 (682) UI-20.v 1.2 (17.4) 2.25 (32.6) 370 (814) UI-20.v 1.4 (20.3) 2.45 (35.5) 435 (957) UI-20.v 1.6 (23.2) 2.65 (38.4) 500 (1100) 19 16.8 UI-20.v 1.8 (26.1) 2.25 (32.6) 560 (1232) (42) (37) UI-30.n 0.2 (2.9) 1 (14.5) 60 (132) UI-30.n 0.4 (5.8) 1.2 (17.4) 125 (275) UI-30.n 0.6 (8.7) 1.4 (20.3) 185 (407) UI-30.n 0.8 (11.6) 1.6 (23.2) 250 (550) UI-30.n 1 (14.5) 1.8 (26.1) 310 (682) UI-30.v 1.2 (17.4) 2.8 (40.6) 370 (814) UI-30.v 1.4 (20.3) 3 (43.5) 435 (957) UIII-30.n 0.2 (2.9) 1 (14.5) 140 (308) UIII-30.n 0.4 (5.8) 1.2 (17.4) 280 (616) UIII-30.n 0.6 (8.7) 1.4 (20.3) 425 (935) UIII-30.n 0.8 (11.6) 1.6 (23.2) 565 (1243) UIII-30.n 1 (14.5) 1.8 (26.1) 705 (1551) UIII-30.v 1.2 (17.4) 2 (29.0) 845 (1859) UIII-30.v 1.4 (20.3) 2.2 (31.9) 985 (2167) UIII-30.v 1.6 (23.2) 2.4 (34.8) 1130 (2486) UIII-30.v 1.8 (26.1) 2.6 (37.7) 1270 (2794) 49 45 UIII-30.v 2 (29.0) 2.8 (40.6) 1410 (3102) (108) (99) UIII-30.v 2.2 (31.9) 3 (43.5) 1550 (3410) UIII-60.n 0.2 (2.9) 1 (14.5) 140 (308) UIII-60.n 0.4 (5.8) 1.2 (17.4) 280 (616) UIII-60.n 0.6 (8.7) 1.4 (20.3) 425 (935) UIII-60.n 0.8 (11.6) 1.6 (23.2) 565(1243) UIII-60.v 1 (14.5) 2.6 (26.1) 705 (1551) UIII-60.v 1.2 (17.4) 2.8 (40.6) 845 (1859) UIII-60.v 1.4 (20.3) 3 (43.5) 990 (2178) UV-60.n 0.2 (2.9) 1 (14.5) 280 (616) UV-60.n 0.4 (5.8) 1.2 (17.4) 565 (1243) UV-60.n 0.6 (8.7) 1.4 (20.3) 845 (1859) UV-60.n 0.8 (11.6) 1.6 (23.2) 1130 (2486) UV-60.n 1 (14.5) 1.8 (26.1) 1410 (3102) UV-60.v 1.2 (17.4) 2.45 (35.5) 1690 (3718) UV-60.v 1.4 (20.3) 2.65 (38.4) 1975 (4345) UV-60.v 1.6 (23.2) 2.85 (41.3) 2255 (4961) 105.6 99.8 UV-60.v 1.75 (25.3) 3 (43.5) 2465 (5423) (233) (220) UV-60.v 2.4 (34.8) 4.5 (65.2) 2800 (6160) UV-60.v 2.9 (42.0) 4.55 (65.9) 3000 (6600) UV-100.n 0.2 (2.9) 1 (14.5) 280 (616) UV-100.n 0.4 (5.8) 1.2 (17.4) 1975 (4345) UV-100.n 0.6 (8.7) 1.4 (20.3) 845 (1859) UV-100.v 0.8 (11.6) 2.8 (40.6) 1130 (2486) UV-100.v 1 (14.5) 3 (43.5) 1410 (3102) Weight With Without Handwheel Handwheel Kgs Kgs (lbs) (lbs) Note: 1) Actuator weight remains same irrespective of spring range and actuator action 2) Above spring ranges are applicable for parabolic trims. For perforated, pressure balanced and 3 way trims spring ranges will be selected on a case to case basis
Technical data: Series 520 / 540 Kv / Cv Values for Parabolic Trim Valve Size (mm / Inch) 15 / 0.5 25 / 1 40 / 1.5 50 / 2 80 / 3 100 / 4 150 /6 200 / 8 250 / 10 300 / 12 400 / 16 Kv Cv Kv Cv Kv Cv Kv Cv Kv Cv Kv Cv Kv Cv Kv Cv Kv Cv Kv Cv Kv Cv 0.1 0.12 0.1 0.12 11 12.87 18 21.06 43 50.31 68 79.56 150 175.5 260 304.2 380 444.6 1300 1521 2500 2925 0.16 0.19 0.16 0.19 18 21.06 26 30.42 68 79.56 100 117 260 304.2 380 444.6 650 760.5 - - - - 0.25 0.29 0.25 0.29 26 30.42 43 50.31 100 117 150 175.5 380 444.6 650 760.5 900 1053 - - - - 0.4 0.47 0.4 0.47 - - - - - - - - - - - - - - - - - - 0.63 0.74 0.63 0.74 - - - - - - - - - - - - - - - - - - 1 1.17 1 1.17 - - - - - - - - - - - - - - - - - - 1.6 1.87 1.6 1.87 - - - - - - - - - - - - - - - - - - 2.5 2.93 2.5 2.93 - - - - - - - - - - - - - - - - - - 4 4.68 4 4.68 - - - - - - - - - - - - - - - - - - - - 7 8.19 - - - - - - - - - - - - - - - - - - - - 11 12.87 - - - - - - - - - - - - - - - - - - Kv value for Silencer basket Valve Size Parabolic Single fold Double fold NB Kvs silencer silencer mm (inches) (Cvs) LK1 Kvs (Cvs) LK2 Kvs (Cvs) 25 (1") 11 (12.7) - - 25 (1") 7 (8.1) - - 25 (1") 4 (4.6) 3.9 (4.5) - 40 (1½") 11 (12.7) 10.9 (12.6) - 50 (2") 43 (50.0) 41 (47.6) - 50 (2") 26 (30.2) 25 (29.0) 23.8 (27.6) 50 (2") 18 (20.9) 17.8 (20.6) 17.2 (20.0) 80 (3") 100 (116.2) - - 80 (3") 68 (79.0) 63 (73.2) - 80 (3") 43 (50.0) 41 (47.6) 39 (45.3) 100 (4") 150 (174.4) 132 (153.4) - 100 (4") 100 (116.2) 94 (109.3) 86 (100.0) 100 (4") 68 (79.0) 66 (76.7) 63 (73.2) 150 (6") 380 (441.8) 317 (368.6) 250 (290.6) 150 (6") 260 (302.3) 237 (275.5) 205 (238.3) 150 (6") 150 (174.4) 145 (168.6) 137 (159.3) 200 (8") 650 (755.8) 556 (646.5) 512 (595.3) 200 (8") 380 (441.8) 358 (393.0) 329 (382.5) 200 (8") 260 (302.3) 253 (294.1) 242 (281.3) 250 (10") 380 (441.8) 358 (416.2) 329 (382.5) Notes : Noise reduction same as that of perforated trims. Use of Roboter (pneumatic pressure reducer) is possible with silencer baskets To get Cv values use following formula Cv = 1.17 x Kv Kv value for Perforated trim Valve Lift SeatDia L1 L1 L2 L3 Size (NB) mm (inches) mm (inches) 1step EP 1 step Linear 2 step Linear 3 step Linear 15 (½") 20 (0.7") 16 (0.6") 2.7 (3.1) 2.2 (2.5) 2.1 (2.4) - 20 (0.7") 19 (0.7") 3.9 (4.5) 4.5 (5.2) 4.1 (4.7) 4.1 (2.7) 25 (1") 20 (0.7") 24 (0.9") 5.5 (6.3) 6.7 (7.7) 6.1 (7.0) - 20 (0.7") 32 (1.2) 8.1 (9.4) 13.5 (15.6) 10.8 (12.5) - 40 (1½") 20 (0.7") 37 (1.4") 10.9 (12.6) 17.9 (20.8) 14 (16.2) - 30 (1.1") 32 (1.2") 15 (17.4) 15 (17.4) 13.8 (16.0) 8.4 (9.7) 30 (1.1") 37 (1.4") 17.8 (20.6) 20 (23.2) 17.9 (20.8) 9.7 (11.2) 50 (2") 30 (1.1") 48 (1.8") 25 (29.0) 40 (46.5) 23.5 (27.3) - 30 (1.1") 62 (2.4") 36 (41.8) 60 (69.7) 30.6 (35.5) 18.2 (21.1) 80 (3") 30 (1.1") 71 (2.7") 42 (48.8) 70 (81.3) 35.3 (41.0) - 100 (4") 30 (1.1") 90 (3.5") 52 (60.4) 85 (98.8) 47.1 (54.7) - 60 (2.3") 71 (2.7") 90 (104.6) 105 (122.0) 67.5 (78.4) 67 (77.9) 60 (2.3") 90 (3.5") 125 (145.3) 160 (186.0) 103 (119.7) 88 (102.3) 150 (6") 60 (2.3") 113 (4.4) 159 (184.8) 240 (279.0) 132 (153.4) 107 (124.4) 60 (2.3") 143 (5.6") 200 (232.5) 320 (372.0) 171 (198.8) - 200 (8") 60 (2.3") 172 (6.7") 250 (290.6) 400 (465.1) 209 (243.0) - 100 (3.9") 143 (5.6") 333 (387.2) 420 (488.3) 270 (313.9) - 250 (10") 100 (3.9") 172 (6.7") 485 (563.9) 560 (651.1) 395 (459.3) - 300 (12") 100 (3.9") 265 (10.4") - - 560 (651.1) - 400 (16") 100 (3.9") 400 (15.7") - 2500 (2906.9) - - Notes : For calculations and selection of summary Kv values, it is necessary to apply the correct x values in the calculation The Kv values mentioned in the chart are the maximum values for a particular seat diameter Intermediate Kv values shall be applicable based on customer specifications To get Cv values use following formula Cv = 1.17 x Kv
Cross-sectional drawings of Combined PRDS 4 Top Entry PRDS Valve (L2 Trim Design) L. No. Part Name 13 Nut 1 Valve Body 14 Stud 2 Bottom Flange 15 Gasket 3 Seat 16 Cooling Water Seat 4 Plug 17 Packing Set 5 Guide Bush 18 Guide Bush 6 Spindle 19 Lock Screw 7 Gland Nut 20 Intermediate Flange 8 Packing Set 21 Gasket 9 Slotted Nut 22 Water Chamber 10 Gasket 23 Water Inlet Pipe 11 Bolt 24 Flange S/W 12 Nut Top Entry PRDS Valve (L3 Trim Design) L. No. Part Name 1 Valve Body 2 Bottom Flange 3 Seat 4 Plug 5 Guide Bush 6 Spindle 7 Gland Nut 8 Packing Set 9 Slotted Nut 10 Gasket 11 Bolt 12 Nut 13 Nut 14 Stud 15 Gasket 16 Cooling Water Seat 17 Packing Set 18 Guide Bush 19 Lock Screw 20 Intermediate Flange 21 Gasket 22 Water Chamber 23 Water Inlet Pipe 24 Flange S/W 25 Sleeve 19 20 4 21 WATER Bottom Entry through Stem PRDS Valve (Parabolic Trim Design) Bottom Entry through Nozzle PRDS Valve (L2 Trim Design) L. No. Part Name 1 Valve Body 2 Ext. Top flange 3 Bottom flange 4 Seat 5 Plug 6 Ball 7 Spindle 8 Spring Dowell Pin 9 Bottom Ring 10 Gland Packing RIngs 11 Gland Follower 12 Gland Nut 13 Slotted Nut 14 Gasket 15 Guide Bush 16 Bilts 17 Nuts 18 Gland Packing Rings 19 Sleeve 20 Cooling Water Seat 21 Gasket 22 Cooling Water Flange 23 Bolts 24 Nuts L. No. Part Name 1 Valve Body 2 Ext. Top Flange 3 Bottom Flange 4 Seat 5 Plug 6 Ball 7 Spindle 8 Spring Dowell Pin 9 Bottom Ring 10 Gland Packing Rings 11 Gland Follower 12 Gland Nut 13 Slotted Nut 14 Gasket 15 Guide Bush 16 Nut 17 Stud 18 Nozzle 19 Bolts 20 Nuts 21 Cooling water flange
Pressure Reducing and Desuperheating Stations We supply flange to flange Pressure Reducing and Desuperheating Stations with pressure control and temperature control instrumentation loop. Pos. Part Name 1 Pressure Gauge 2 Pressure Gauge 3 Dial Thermometer 4 Dial Thermometer 5 Stop Valve 6 Bypass Valve 7 Strainer 8 Pressure Reducing Cum Desuperheating Valve 9 Elbow 10 Stop Valve 11 Safety Valve 12 Stop Valve 13 Pressure Control Loop 14 Temperature Control Loop 15 Non-Return Valve (Loose Supply) 16 Stop Valve 17 Water Flow Control Valve 18 Strainer 19 Elbow 20 Flange 21 Expander 22 Flange 23 Condensing Pot 24 Equal Tee 25 Expander 26 Tee 27 Additional Spray Nozzle Insert Total PRDS System along with Control Loop Recommendations for efficient working of PRDS Minimum straight length at outlet should be 4 mtrs (13.12 feet). Minimum distance of Temperature Sensor from the point of water injection should be 12 mtrs (39.36 feet). Minimum distance of Pressure Sensor from PRDS Valve should be 1.5 mtrs (4.92 feet). It is recommended to install a strainer of 0.1 mm (3.93 Thou) mesh before water control valve. Spray water should be very clean (equivalent to boiler feed water). Instrument quality air is required. Minimum water pressure requirement for Combined PRDS: Top entry Bottom entry through stem Notes : Pw = [(P1+P2)/2 ] + 7 BAR (101.52 Psi) : Pw = P2 + 7 BAR (101.52 Psi) Bottom entry through nozzle : Pw = [P1 / 2 ] + 7 BAR (101.52 Psi) 1 Minimum controllable temperature is Saturation Temperature + 7 C (44.6ºF). 2 The above are based on a specific set of parameters. These guidelines may change. Specifications for Combined PRDS valve Body Material Trim Material Trim Form Standard Characteristics End Connections Bonnet Packing Material Ordering Information : Carbon steel, Alloy steel, others on request : SS 410 Nitrited, SS 431 Nitrited, SS 321 Nitrited, A182 F22 : Parabolic, Perforated : Linear, Equal %, modified on request : Flanged to ANSI Standards, Butt weldable, Socket weldable : Standard, Extended (Cooling Finned), Water Cooled : Graphite Rangeability : 40:1 Process parameters needed for PRDS Valve Sizing (min/max) Steam Flow (Inlet) kg/hr (lbs/hr) Inlet Pressure bar(g) (Psig) Outlet Pressure bar(g) (Psig) InIet Temperature C (ºF) Outlet Temperature C (ºF) Water Pressure bar(g) (Psig) Water Temperature C (ºF)
Your local Forbes Marshall representative would be happy to provide you with further information and support. AMERICA SOUTH ASIA ASIA PACIFIC AFRICA USA Forbes Marshall Inc. USA 480,California Avenue, Suite 102,P.O. Box 60670 Palo Alto CA 94306 California,USA Tel: +1 650 327 4227/ +1 650 321 4224 Fax: +1 650 327 4127/ +1 650 321 4454 Email: forbesmarshall@ix.netcom.com Allagash International, Inc. 1000 Riverside Street, Portland, Me. 04103 Tel: + 1 207-781-8831 Fax: + 1 207-781-8830 CANADA Forbes Marshall Canada Inc. 191 Attwell Dr., Unit #2 Etobicoke, ON M9W 5Z2 Canada Tel: +416.679.0881 Fax: +416.679.0882 Email: canada@forbesmarshall.com COLOMBIA Forbes Marshall Colombia CRA 58 # 167B-19 INT: 1 Portales Del Norte, Bogota Tel: +57 316 721 1510 Email: fsforbes@gmail.com INDIA P.O. BOX # 29 Mumbai Pune Road, Kasarwadi, Pune-411034 Tel: +91 (0) 20 39858555/ +91 (0) 20 27145595 Fax: + 91 (0) 20 27147413 Email: exp@forbesmarshall.com BANGLADESH Rupsha Tower, C-3, 3rd Floor 7, Kemal Attaturk Avenue, Road#17, Behind Brac Bank, Dhaka - Bangladesh Tel: +88 028811501/+88 01711529502 Email: bangladesh@forbesmarshall.com rrnair@forbesmarshall.com SRI LANKA Forbes Marshall Lanka Pvt. Ltd. 12/5A, 1/1, Robert Gunawardane Mawatha Kirulapone, Colombo-06. Sri Lanka. Tel: +94 11 2512997/4511127/28 Fax: + 94 11 4511128 Email: fmlanka@forbesmarshall.com, wfernando@forbesmarshall.com NEPAL Ekta Engineering and Marketing Pvt. Ltd. 402,4th Floor, Bagmati Chamber, Milan Marg, Teku Road,Tripureshwor, Kathmandu, Nepal Mob: +977 9851022039 / 9851036530 Tel: +977 (1)4247676/4238131 Email: ekta@ecomail.com.np THAILAND Room No.403,4th Floor, House No.567, Seri 6 Road Soi 51, Rama 9 Road, Suan Luan, Bangkok 10250.Thailand. Tel: +66 2 7203483/4 +66-81-9020690 Fax: +66 2 7203483,9435500 Email: thailand@forbesmarshall.com vphillip@ksc.th.com INDONESIA NC 8/11, Ji Lilin Raya, Kelapa Gading, Jakarta ( Uttara), Indonesia Tel: +62 8 15199 17178 Email: hbhat@forbesmarshall.com MALAYSIA Forbes Marshall Pvt. Limited Tel: +62 8 15199 17178 Fax: +62 21 4530773 Email: hbhat@forbesmarshall.com VIETNAM Email: vphillip@ksc.th.com Tel: +66 81 90 20690 SOUTH KOREA Shin Woo F.A Co., Ltd. #510 Leaders Tower 60-15 Gasan-Dong,M Geumchun-Gu, Seoul Korea (153-801) Mob: ++8211 732-7695 Tel: ++822 2026-6364 (Direct) Fax : ++822 2026-6363 Email: shinwoofa@empal.com/ forbeskorea@empal.com SINGAPORE Forbes Marshall Pvt. Limited Tel: +62 8 15199 17178 Email: hbhat@forbesmarshall.com KENYA PO Box - 58338-00200 Nairobi, Kenya Tel: +254 734 763 913 / +254 725 490 866 Email: africa@forbesmarshall.com ETHIOPIA Rapture Import Export PLC Kolfe Keranio Sub-City, Kebele13/14, House Nr.624, P.O. Box 28447/1000 Addis Ababa, Ethiopia Tel: +251-911-145524 Fax: +251-115-511479 Email: Biruk.Oasis@gmail.com MIDDLE EAST ASIA U.A.E ( Dubai) Forbes Marshall Pvt.Ltd. P.B.No. 9608, Sharjah Airport Free Zone, Sharjah UAE. Mob: + (971) 50 4949084 + (971) 55 5222623 Email: : csequeira@forbesmarshall.com / sequeira.cedric@gmail.com / ctony@forbesmarshall.com IRAN: Tel: +98 912 1304598 Email: m.m.rezaee@gmail.com / mmrezaee@forbesmarshall.com EGYPT System Technique 17 El Mahrovky Street, Off Aswan Square, Mohandseen, Cairo, P.O.Box 141 El-Gezirah, Egypt Mob: +201 68802964 Ph No - +202 3036935/52/81, +202 3045637 Fax: + 202 3036897 Email: mchakraborty@forbesmarshall.com