DIN/BS Std Cast Iron/Ductile Iron Butterfly Check Valve with Double Flange Conform to API 6D, ASME B16.34. They are tested according to API 598, and marked as per MSS SP-25.
Construction is as follows:
Main Part & Materials
Normal Pressure Rating
PN10~PN64, CLASS150~600
Normal Size Range
DN400~D2500, 16"~100"
Construction is as follows:
- Regular Pore | |||
| - With Damper | |||
| - Swing Check | |||
| - Single or Dual Plate | |||
| - With or without counterweight | |||
| - Flanged Ends to ASME B16.5 and B16.47 A/B |
Main Part & Materials
Part Names | Part Materials | |||||||
| Body | WCB | LCB | WC6 | CF8 | CF8M | CF3 | CF3M | C83600/C95800 |
| Bonnet | WCB | LCB | WC6 | CF8 | CF8M | CF3 | CF3M | C83600/C95800 |
| Disc/Ball/Wedge | WCB | LCB | WC6 | CF8 | CF8M | CF3 | CF3M | C83600/C95800 |
| Stem | F6a | F304 | F6a | F304 | F316 | F304L | F316L | C83600/C95800 |
| Seat/Seat Ring | 13%Cr | SS304 | 13%Cr | SS304 | SS316 | SS304L | SS316L | C83600/C95800 |
| Packing | Graphite/PTFE | |||||||
| Gasket | SS304+Graphite/SS304+Graphite | |||||||
| Bolts/Nuts | B7/2H | L7/4 | B16/4 | B8/8 | B8M/8M | B8/8 | B8M/8M | B8M/8M |
| Suitable Medium | W.O.G etc. | HNO3, CH3OOH etc. | Sea Water etc. | |||||
| Suitable Temperature | -29~425 °C | -46~340 °C | -46~340 °C | -196~427 °C | -196~427 °C | -196~427 °C | -196~427 °C | -29~220 °C |
Normal Pressure Rating
PN10~PN64, CLASS150~600
Normal Size Range
DN400~D2500, 16"~100"