Wafer Check Valve is a compact and lightweight check valve. It usually consists of a thin disc-shaped valve and two flanges.The disc check valve controls the one-way flow of fluid by opening and closing the valve disc.
When the upstream pressure is higher than the downstream pressure, the valve disc opens; when the downstream pressure is higher than the upstream pressure, the valve disc closes to prevent the fluid from flowing back. This design enables it to operate efficiently even at low pressure differences.
This check valve size is wide, usually between 2 inches and 24 inches, and larger sizes can be customized according to needs. It is widely used in water supply systems, chemical industry, petroleum industry and other fields.
1. Lightweight, so easier to handle and self-supporting. More compact and well-structured design.
2. The same valve can be installed horizontally or vertically.
3. Due to the spring assisted closing, only the double plate check valve can be installed upside down.
4. Reduced pressure drop and energy loss regardless of pressure rating.
5. Efficient and reliable sealing under most flow and pressure conditions.
6. The valve closes before the flow reverses and the velocity is zero.
7. Water hammer is almost non-existent.
8. Long service life and trouble-free operation.
| DN | L | D | a | b | r | WT(kg) |
| 50 | 43 | 107 | 43 | 8 | 29 | 1.5 |
| 65 | 46 | 127 | 60 | 13 | 36 | 2.4 |
| 80 | 64 | 142 | 66 | 14 | 43 | 3.6 |
| 100 | 64 | 162 | 93 | 24 | 53 | 5.3 |
| 125 | 70 | 192 | 117 | 33 | 66 | 7.3 |
| 150 | 76 | 218 | 145 | 43 | 79 | 9.2 |
| 200 | 89 | 273 | 198 | 68 | 104 | 16.0 |
| 250 | 114 | 328 | 234 | 72 | 127 | 26.0 |
| 300 | 114 | 382 | 284 | 100 | 148 | 40.7 |
| 350 | 127 | 442 | 333 | 121 | 173 | 55.0 |
| 400 | 140 | 495 | 381 | 137 | 198 | 750 |
| 450 | 152 | 555 | 420 | 148 | 218 | 118.0 |
| 500 | 152 | 617 | 475 | 180 | 245 | 173.0 |
| 600 | 178 | 734 | 585 | 220 | 302 | 200.0 |
