Basic Info.
Product Description
Dual Plate Wafer Check Valve for Industrial System •Size:DN50~DN600
•Body material available in Cast iron/Stainless steel
•Face to face dimension to EN558-1 (DIN3202 K3)
•Working Pressure:PN10,PN16
•Working Temperature: -20ºC to 120ºC for EPDM seat
-10ºC to 82ºC for NBR seat
Specifications:
| Nominal pressue (MPa) | 1.0 | 1.6 | |
| Nominal diameter(mm) | 50-1000 | 50-1000 | |
| Test pressure | Shell | 1.5 | 2.4 |
| (MPa) | Seal | 1.1 | 1.76 |
| Applicable temperature | 150 | ||
| Applicable medium | Fresh water, Sewage, Sea water, Air, Vapor, Food, Medicine, Oils, Acids, | ||
| Operating mode | manual, worm gear, pneumatic, electric, etc. | ||
Standards:
| Design & Manufacture | Flange Connection | Face to Face Dimension | Test & Inspection |
| API 594 | DIN PN10/16/25 | API594 | API 598 |
Material:
| body | Cast Iron, Ductile Iron, Carbon Steel, Stainless Steel |
| Plate | Ductile Iron, Carbon Steel, Stainless Steel |
| Spring | Stainless Steel |
| Hinge Pin | Stainless Steel |
| Plug | carbon steel |
| Body Bearing | PTFE |
| Spring Bearing | PTFE |
| Stop Pin | Stainless Steel |
| Eye Bolt | Carbon Steel |
| Body Seat | NBR, EPDM, Viton, Neoprene |
Application:
Chemicals, air, water, steam, oil, acids, salts ect
Features:
1. Small in size, light in weight, compact in structure,easy in maintenance.
2. Two torsion springs are used excreting on each of the pair valve plates,which close the plates quickly
And automatically.
3. The quick-close action prevents the medium from flowing back and eliminates water hammer effect.
4. Short body structure length and good rigidity.
5. This valve is tightly sealed, without leakage under the pressure water test.
6. Safe and reliable in operation,high interference-resistance.
