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The dual plate check valve has good non-return performance, safety and reliability, and small flow resistance coefficient. It is mainly used in petroleum, chemical industry, food, medicine, textile, paper making, water supply and drainage, smelting and energy systems, etc.
The dual plate check valve has good non-return performance, safety and reliability, and small flow resistance coefficient. It is mainly used in petroleum, chemical industry, food, medicine, textile, paper making, water supply and drainage, smelting and energy systems, etc.
【Size Range】: DN50-DN300
【Pressure】: PN6/10/16、5/10K、CL150、Table D/E
【Body Materials】: Ductile Iron
【Seat Materials】: EPDM/NBR
【Disc Materials】: DI/SS304
【Stem Materials】: SS304/SS316
1. Small size, light weight, compact structure and convenient maintenance
2. The valve plate adopts dual type, which can close quickly by itself under the elastic moment of spring
3. Because of the quick closing effect, it can prevent the medium from flowing backwards and eliminate the water hammer
4. The valve body structure has small length and size, good rigidity, safety and reliability
5, achieve complete sealing, water pressure test leakage is zero
6. Easy installation, which can be used for horizontal and vertical installation
-chemical and petrochemical industries
-Water treatment and sewage treatment
-Pneumatic conveying
-Shipbuilding
-Energy engineering
| Parts | 1 | 2 | 3 | 4 | 5 |
| Name | Body | Stem | Spring | Disc | Seat |
| Material | DI | SS304 | SS304 | SS304 | EPDM |
| Size | L | ΦA | ΦB | ΦC | |
| DN | NPS（inch） | ||||
| 50 | 2″ | 43 | 101 | 60.5 | 57 |
| 65 | 2 1/2″ | 46 | 118 | 73.5 | 70 |
| 80 | 3″ | 64 | 132 | 89 | 86 |
| 100 | 4″ | 64 | 162 | 114.5 | 106.5 |
| 125 | 5″ | 70 | 193 | 141.5 | 120 |
| 150 | 6″ | 76 | 219 | 168 | 156.5 |
| 200 | 8″ | 89 | 272 | 219 | 210 |
| 250 | 10″ | 114 | 328 | 265 | 265 |
| 300 | 12″ | 114 | 378 | 310 | 300 |
Swing Check Valve PN10/PN16/PN25/PN40/PN63