Cast Steel WCB/LCB/WC6/WC9 RF Flange Swing Check Valve
Conform to BS1873, and ASME B16.34. They are tested according to API 598, and marked as per MSS SP-25
1. Construction is as follows:
- Full Open, or Reduce Pore |
- Piston Check |
- Ball Check |
- Swing Check |
- Bolted Bonnet with spiral-would gasket, threaded and seal welded bonnet and threaded and pressure seal bonnet |
- With or without counterweight |
- Butt Weld Ends to ASME B16.25 |
- Flanged Ends to ASME B16.5 and B16.47 A/B |
2. 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 |
3. Normal Pressure Rating
PN10~PN420, CLASS150~2500
4. Normal Size Range
DN50~DN700, 2"~30"