API609 Cast Steel Double Eccentric Butterfly Valve Conform to API 609.
They are tested according to API 598, and marked as per MSS SP-25.
1. Construction is as follows:
- Double or Triple Eccentric |
- Single Type Body |
- Renewable Sealing Ring |
- Fire Safe Design |
- Anti-static Design |
- Uni-direction or Bi-direction |
- Butt Weld Ends to ASME B16.25 |
- Flanged Ends to ASME B16.5 |
- Wafer or Lug Suit to Flanged(ASME B16.5 or B16.47) |
2. Main Part & Materials
Part Names | Part Materials |
Body | WCB | LCB | WC6 | CF8 | CF8M | CF3 | CF3M |
Disc | WCB | LCB | WC6 | CF8 | CF8M | CF3 | CF3M |
Stem | F6a | F304 | F6a | F304 | F316 | F304L | F316L |
Seat/Seat Ring | PTFE/RPTFE/NYLON/DEVLON/PEEK or METAL |
Packing | Graphite/PTFE |
Gasket | SS304+Graphite/SS304+Graphite |
Bolts/Nuts | B7/2H | L7/4 | B16/4 | B8/8 | B8M/8M | B8/8 | B8M/8M |
Suitable Medium | W.O.G etc. | HNO3, CH3OOH etc. |
Suitable Temperature | -29~425 °C | -46~340 °C | -46~340 °C | -196~427 °C | -196~427 °C | -196~427 °C | -196~427 °C |
3. Normal Pressure Rating
PN10~PN64, CLASS150~600
4. Normal Size Range
DN50~DN1800, 2"~72"