
Check Valves
CV, CH, CO, CA, COA, CL and CW Series

Features
CV Series

- Resilient O-ring seat design for leak free sealing
- Working pressure up to: 300 psig (207 bar)
- Working temperature: -10°F to 375°F (-23°C to 190°C)
- Cracking pressure: 1/3 to 25 psig (0.02 to 1.7 bar)
- Variety of end connections and materials available
- Fixed cracking pressure, mountable in any directions
CH Series

- Seat ring continuously cleaned by media, avoiding secondary pollution
- Working pressure up to: 6000 psig (414 bar)
- Working temperature: -10°F to 400°F (-23°Cto 204°C)
- Cracking pressure: 1/3 to 25 psig (0.02 to 1.7 bar)
- Variety of end connections and materials available
- Fixed cracking pressure, mountable in any directions
- ECE R110 type approved valves for use in CNG/NGV application available
CO Series

- Compact design, one-piece body
- Working pressure up to: 300 psig (207 bar)
- Working temperature: -10°F to 375°F (-23°C to 190°C)
- Cracking pressure: 1/3 to 25 psig (o.o2 to 1.7 bar)
- Variety of end connections and materials available
- Fixed cracking pressure, mountable in any direction
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 directions
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 (o.2 to 41.4 bar)
- Variety of end connections and materials available
- Various springs available
- Adjustable cracking pressure, mountable in any direction
CL Series

- Working pressure up to: 6000 psig (414 bar)
- Working temperature: -65°F to 900°F (-53°C to 482°C)
- Rugged, all-stainless steel construction
- Union bonnet design, horizontal installation with bonnet nut on top
- Reverse flow coefficient less than 0.1% of forward flow coefficient
CW Series

- Working pressure up to: 3000 psig (207 bar)
- Working temperature: -10°F to 400°F (-23°C to 204°C)
- Cracking pressure: less than 2 psig (0.14 bar)
- Variety of end connections and materials available
- All-welded design for safety
- Standard or fine polished wetted surfaces optional
Besides CL series, other check valves are all coated with lubricants like silicone base and molybdenum disulfide base. PTFE-coated spring is an option for CV, CO, CA, and COA series check valves. Every valve is tested with nitrogen for leak-tight performance as its maximum working pressure.