API CAST STEEL VALVES : PRESSURE SEAL GATE VALVES
A. PRESSURE SEAL GATE VALVES BRIEF FIGURE OF STRUCTURE
Pressure Seal Gate Valves Class 600Lb~2500Lb
Pressure Seal Gate Valves Class 600Lb~2500Lb
  1. OS&Y, Rising stem, Flexible wedge
  2. Pressure seat Bonnet, Threaded or welded seat ring
  3. ASTM A216 WCB, A217 WC6,A351CF8,A351CF8M,
  4. A351 CF3,A351 CF3M,A351 CN7M
B. PRESSURE SEAL GATE VALVES STANDARDS COMPLIANCE
  1. Design and Manufacture: AMSI B16.34,API600 API6D,BS1414
  2. Face to face(end to end):ANSI B16.10,API6D
  3. Flanged connection: ANSI B16.5
  4. Butt welded end: ANSI B16.25
  5. Test and inspection: API598, API6D
  6. Back up ring: Absorbs thrust applied by internal pressure
  7. Thrust ring: Protects the soft metallic gasket from deformation
  8. Gasket: Unique angular design provides superior sealing
C. PRESSURE SEAL GATE VALVES MATERIAL SPECIFICATION
Materials List
NO. Part name Material
23 Grease nipple Brass
22 Grub screw Carbon steel
21 Hand wheel nut Carbon steel
20 Hand wheel Malleable iron/cast steel/dycuke iron/fabricated steel
19 Yoke nut Carbon steel/SS
18 Eye bolt and nut A 193 B7/A194 2H~A193 B8/A194 8
17 Pin Carbon steel/stainless steel
16 Stem Nut A 439-D2/cu-alloy
15 Gland flange
14 Gland Stain less steel
13 Gland bush See body material
12 Back seat
11 Stem
10 Seat ring
09 Wedge
NO. Part name WCB LCB WC6 WC9
08 Bolt and nut A193 Gr B7/A194 Gr 2H A320 Gr L7/A194 Gr 4 A193 Gr B16/A194 Gr 4/7 A193 Gr B16/A194 Gr 4/7
07 Gland packing Graphite Graphite Graphite Graphite
06 Gasket Soft iron Soft iron SS304 SS304
05 Thrust ring A105 A182 F304 A182 F11 A182 F22
04 Back up ring A105 A182 F304 A182 F11 A182 F22
03 Yoke A216 Gr WCB A352 Gr LCB A271 Gr WC6 A271 Gr WC9
02 Bonnet A216 Gr WCB A352 Gr LCB A271 Gr WC6 A271 Gr WC9
01 Body A216 Gr WCB A352 Gr LCB A271 Gr WC6 A271 Gr WC9
NO. Part name C5 C12 CF8 CF8M
08 Bolt and nut A193 Gr B7/A194 Gr 2H A193 Gr B16/A194 Gr 4/7 A193 B8/A194 8 A193 B8M/A194 8M
07 Gland packing Graphite Graphite Graphite Graphite
06 Gasket SS304 SS304 SS304 SS316
05 Thrust ring A182 F22 A182 F22 A182 F304 A182 F316
04 Back up ring A182 F22 A182 F22 A182 F304 A182 F316
03 Yoke A217 Gr C5 A217 Gr C12 A351 Gr CF8 A351 Gr CF8M
02 Bonnet A217 Gr C5 A217 Gr C12 A351 Gr CF8 A351 Gr CF8M
01 Body A217 Gr C5 A217 Gr C12 A351 Gr CF8 A351 Gr CF8M

D. PRESSURE SEAL GATE VALVES PRESSURE-SEAL GATE VALVES CLASS 600LB~2500LB
Dimensions
Class 600
Size inch 2 2-1/2 3 4 5 6 8 10 12 14 16 18 20 24
L-L1 mm 292 330 356 432 508 559 660 787 838 889 991 1092 1194 1397
L-SP mm 178 216 254 305 381 457 584 711 813 889 991 1092 1194 1397
H mm 525 610 650 775 825 1050 1200 1450 1600 1800 2050 2245 2400 2670
K mm 250 250 300 350 400 500 600 600 400~ 450~ 450~ 500~ 500~ 550~
Wt kg 35 55 62 105 160 205 400 690 815 1125 1650 2025 2325 3980
Class 900
Size inch 2 2-1/2 3 4 5 6 8 10 12 14 16 18 20
L-L1 mm 368 419 381 457 559 610 737 838 965 1029 1130 1219 1321
L-SP mm 216 254 305 356 432 508 660 787 914 991 1092 1219 1321
H mm 550 645 670 790 855 1075 1225 1500 1635 1830 2145 2300 2485
K mm 300 300 300 400 450 300~ 350~ 400~ 400~ 450~ 500~ 500~ 550~
Wt kg 75 90 96 136 225 275 490 825 1150 1500 2100 2750 3400
Class 1500
Size inch 2 2-1/2 3 4 5 6 8 10 12          
L-L1 mm 368 419 470 546 673 705 832 991 1130          
L-SP mm 216 254 305 406 483 559 711 864 991          
H mm 570 670 725 850 890 1125 1235 1520 1650          
K mm 300 300 300~ 300~ 300~ 350~ 350~ 400~ 400~          
Wt kg 95 110 125 205 256 330 655 1200 2010          
Class 2500
Size inch 2 2-1/2 3 4 5 6                
L-L1 mm 451 508 578 673 794 914                
L-SP mm 279 330 368 457 533 610                
H mm 600 695 740 890 970 1135                
K mm 400 450 300~ 350~ 350~ 350~                
Wt kg 110 130 140 225 295 1480                
                             
Gear operation suggested. Dimensions depend on request.
Abbreviations: short pattern

The technical data subject to amend without notice