check valve dual plate wafer type
Specification:
For BS 4504 BS EN1092-2 PN10 / PN16/ PN25 flange mounting.
Face-to-Face dimension conforms to ISO 5752 / BS EN558.
Epoxy fusion coating.
Wafer dual plate cast iron check valve
| TECHNICAL REQUIREMENT : | ||
| Size | DN50-DN1200 | |
| General Design | EN1092 | |
| Mounting Pad | ISO5211 | |
| Face to Face | BS5155; EN558; 13 series etc. | |
| Flange Drilling | DIN2501; PN10 / PN16 | |
| Inspection and Test | API598 | |
*. Wafer bodyu style fits between FF or RF flanges.
*. Upper and lower PTFE thrust washers
*. Resilient Buna-N or EPDM seat
*. Dual Plate Valves give maximum strength with minimum opening time.
*. Torsion springs assist valve closure, preventing flow reversal
*. Thrust washers reduce fricition and wear of valve plate hinges.
