H44
Cast Steel
Wafer
Dual Plate
Ordinary Pressure
Ddcv Double Lobe, Nrvr Silence, Sfcv Rubber Lobe, Nrvz Silence, Nrvg Silence
Unidirection
ANSI
Industrial Usage, Water Industrial Usage, Household Usage
Wafer Dual Plate Check Valve
API 594, Asme B16.34
Asme B16.34
Asme B16.10
Wafer
API 598
Dnv CE 0575
ISO9001:2008
VATAC or OEM
Standard Sea Worthy or Air Worthy
API 6d, Bs1868, DIN3202, ISO
China
84818040
Product Description
API 594 Wafer Dual Plate 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:
2. Main Part & Materials
3. Normal Pressure Rating
PN10~PN420, CLASS150~2500
4. Normal Size Range
DN40~DN1000, 1 1/2"~40"
1. Construction is as follows:
- Dual Plate | ||||
| - With Spring | ||||
| - Round, Full Lug or Double Flange | ||||
| - 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 | 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 |
| 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, 1 1/2"~40"
