Conventional valves
Check Valves
Wafer, swing, dual plate, foot and lift check valves — 15 MM NB to 900 MM NB.
Compare
Check Valves specifications side by side
Published values for each type. Full materials of construction on each product page.
| Type | Design standard | Size range | Class | End connection |
|---|---|---|---|---|
| Wafer Check Valves | API 6D | 50 MM NB (2") to 600 MM NB (24") | 150#, 300#, 600#, 900#, 1500#, 2500# | WAFER TYPE |
| Cast Steel Swing Check Valves API 6D | API 6D, BS 1868, BS 5160, MSS SP 42 | 50 MM NB (2") to 600 MM NB (24") | 150#, 300#, 600#, 900#, 1500#, 2500# | Flanged End to ASME B16.5, Screwed/Threaded End to ASME B1.20.1, Socket Weld End to ASME B16.11, Butt Weld End to ASME B16.25 |
| Dual Plate Check Valves | API 6D, API 594 | 50 MM NB (2") to 900 MM NB (36") | 150#, 300#, 600#, 900# | Flanged End, Wafer Type |
| Foot Valves | IS 4038 | 50 MM NB (2") to 900 MM NB (36") | PN 1.0, PN 1.6, 150#, 300# | Flanged End, Screwed Threaded End to ANSI B1.20.1 |
| Forged Steel Lift Check Valves API 602 | API 602 | 15 MM NB (1/2") to 150 MM NB (6") | 150#, 300#, 600#, 800#, 1500#, 2500# | Flanged End to ASME B16.5, Screwed/Threaded End to ASME B1.20.1, Socket Weld End to ASME B16.11, Butt Weld End to ASME B16.25 |
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