Our Product — Check Valve - Dual plate check valve
● Standards:
- 1. Design and manufacture: EN 12334/API 594.
2. Flange dimensions: ASME B16.1/EN 1092
3. Test and inspection: API 598/EN12266.
4. Size up to 24".
● Materials
| NO. | PART | MATERIAL |
| 1 | Body | Cast Iron, Ductile Iron |
| 2 | Plate | Ductile Iron+Ni, CF8, CF8M, Bronze |
| 3 | Spring | Stainless Steel |
| 4 | Hinge Pin | Stainless Steel |
| 5 | Plug | Canbon Steel |
| 6 | Body Bearing | PTFE |
| 7 | Spring Bearing | PTFE |
| 8 | Stop Pin | Stainless Steel |
| 9 | Eye Bolt | Canbon Steel |
| 10 | Body Seat | NBR, EPDM, Viton, Neoprene |
SIZE |
B | E | F | R | d | A |
||
| in | DN | DIN PN10/16 | ANSI150 | |||||
| 2 | 50 | 43 | 65 | 19 | 28.8 | 43.3 | 107 | 102 |
| 2-1/2 | 65 | 46 | 80 | 20 | 36.1 | 60.2 | 127 | 121 |
| 3 | 80 | 64 | 94 | 28 | 43.3 | 66.4 | 142 | 133 |
| 4 | 100 | 64 | 117 | 27 | 52.8 | 90.8 | 162 | 171 |
| 5 | 125 | 70 | 145 | 30 | 65.7 | 116.9 | 192 | 193 |
| 6 | 150 | 76 | 170 | 30 | 78.6 | 144.6 | 218 | 219 |
| 8 | 200 | 89 | 224 | 31 | 104.4 | 198.2 | 273 | 276 |
| 10 | 250 | 114 | 265 | 33 | 127 | 233.7 | 328 | 336 |
| 12 | 300 | 114 | 310 | 50 | 148.3 | 283.9 | 378/382 | 406 |
| 14 | 350 | 127 | 360 | 43 | 172.4 | 332.9 | 438/442 | 448 |
| 16 | 400 | 140 | 410 | 45 | 197.4 | 381 | 488/495 | 511 |
| 18 | 450 | 152 | 450 | 52 | 217.8 | 419.9 | 538/555 | 546 |
| 20 | 500 | 152 | 505 | 58 | 241 | 467.8 | 592/617 | 603 |
| 24 | 600 | 178 | 624 | 73 | 295.4 | 572.6 | 695/734 | 714 |
| 28 | 700 | 229 | 720 | 98 | 354 | 680 | 809 | 828 |
| 32 | 800 | 241 | 825 | 100 | 398 | 770.5 | 916 | 936 |
