Material: | Cast Steel |
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Connection Form: | Flange |
Structure: | Butterfly |
Function: | Ddcv Double Lobe, Nrvr Silence, Sfcv Rubber Lobe, Nrvz Silence, Nrvg Silence |
Flow Direction: | Unidirection |
Standard: | ANSI |
Samples: |
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Customization: |
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Cast Steel RF Flanged Butterfly Check Valve Conform to 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:
2. Main Part & Materials
3. Normal Pressure Rating PN10~PN64, CLASS150~600 4. Normal Size Range DN400~D2500, 16"~100" 5. pictures |
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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 |
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