Adjustable Cracking Pressure Check Valves
CA and COA Series
Features
CA Series
◎Working pressure up to: 3000 psig (207 bar)
◎ Working temperature: -10 °F to 375°F (-23°C to 190°C)
◎ Cracking pressure: 3 to 600 psig (0.2 to 41.4 bar)
◎ Variety of end connections and materials available
◎ Various springs available
◎ Adjustable cracking pressure, mountable in any direction
COA Series
◎ Compact design, one-piece body
◎ Working pressure up to: 3000 psig (207 bar)
◎ Working temperature: -10° F to 375°F (-23°C to 190°C)
◎ Cracking pressure: 3 to 600 psig (0.2 to 41.4 bar)
◎ Variety of end connections and materials available
◎ Various springs available
◎ Adjustable cracking pressure, mountable in any directions
Cracking Pressure and Reseal Pressure
- Cracking pressure – the upstream pressure at which the first indication of flow occurs.
- Reseal pressure – the pressure at which there is no indication of flow.
- Back Pressure differential pressure between the inlet and outlet pressures.
| Series | Nominal Cracking Pressure psig (bar) | Cracking Pressure Range psig (bar) | Reseal Pressure Range psig (bar) |
|---|---|---|---|
| CA | 3 to 50 (0.21 to 3.4) 50 to 150 (3.4 to 10.3) 150 to 350 (10.3 to 24.1) 350 to 600 (24.1 to 41.3) | – | Refer to the chart below |
| COA | 3 to 50 (0.21 to 3.4) 50 to 150 (3.4 to 10.3) 150 to 350 (10.3 to 24.1) 350 to 600 (24.1 to 41.3) | – | Refer to the chart below |
Pressure vs. Temperature
CA and COA Series
FKM O-ring in 316 SS Body and Buna N in Brass Body
Dimensions
CA Series
COA Series
