CF8, CF8M, CF3 or CF8M Stainless Steel Globe Valve With RF or BW Ends 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:
| - Regular Port |
| - Outside Screw and Yoke(OS&Y) |
| - Bolted Bonnet with spiral-would gasket, threaded and seal welded bonnet and threaded and pressure seal bonnet |
| - Backseat |
| - Solid Disc(Plug, Ball/Spherical, Throttling) |
| - 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~DN500, 2"~20"