Cast Steel WCB/LCB Single Disc Wafer Swing Check Valve
Conform to API 594, API 6D, and ASME B16.34 They are tested according to API 598, and marked as per MSS SP-25
1. Construction is as follows:
| - Single Disc |
| - With Spring |
| - Swing Disc or Lift Disc |
| - Soft or Metal Seated |
| - Retainer or Retainer Less Design |
| - Wafer Ends to Suit for Flanged Ends(ASME B16.5 and B16.47 A/B) |
2. Main Part & Materials
| Part Names | Part Materials |
| Body | WCB/A105 | LCB/LF2 | WC6/F22 | CF8/F304 | CF8M/F316 | CF3/F304L | CF3M/F316L | C83600/C95800 |
| Bonnet | WCB/A105 | LCB/LF2 | WC6/F22 | CF8/F304 | CF8M/F316 | CF3/F304L | CF3M/F316L | C83600/C95800 |
| Disc/Ball/Wedge | WCB/A105 | LCB/LF2 | WC6/F22 | CF8/F304 | CF8M/F316 | CF3/F304L | CF3M/F316L | C83600/C95800 |
| Seat/Seat Ring | 13%Cr | SS304 | 13%Cr | SS304 | SS316 | SS304L | SS316L | C83600/C95800 |
| PTFE/NBR/EPDM/VITON |
| 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 |
3. Normal Pressure Rating
PN10~PN420, CLASS150~2500
4. Normal Size Range
DN40~DN1000, 11/2"~40"