Check Valve
Poppet Check Valves, CV, CH, and CO Series
CV, CH, and CO Series Poppet Check Valves support working pressures of up to 6000 psig (414 bar) and a temperature range of -10°F to 375°F (-23°C to 190°C). These valves feature a non-adjustable cracking pressure ranging from 1/3 psig to 25 psig (0.02 bar to 1.7 bar) and can be mounted in any direction. A variety of end connections and materials are available. Some series meet ECE R110 and EC79 certification requirements.
CV Series Check Valve : Poppet Type
Check valve Resilient O-ring seat design for leak free sealing.
Working pressure up to: 3000 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)
CH Series Check Valves : Poppet Type
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 C to 204 C)
CO Series Check Valve : One Pieces Body
Compact, one piece body Working pressure up to: 3000 psig (207 bar) Working temperature: -10 F to 375 F (-23 C to 190 C)
Adjustable Cracking Pressure Check Valves, CA and COA Series
CA and COA Series Adjustable Poppet Check Valves feature a compact design with a one-piece body. They offer a working pressure of up to 3000 psig (207 bar) and a temperature range from -10°F to 375°F (-23°C to 190°C). These valves feature adjustable cracking pressure and can be mounted in any direction. A variety of end connections, materials, and spring options are available.
COA Series Check Valve : One pieces Body Adjustable
Compact, one-piece body Working pressure up to: 3000 psig (207 bar) Working temperature: -10 F to 375 F (-23 C to 190 C)
CA Series : Adjustable
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)
CL Series : Union Bonnet
Working pressure up to: 6000 psig (414 bar) Working temperature: -65 F to 900 F (-53 C to 482 C)
CW Series : High purity all welded
Working pressure up to: 3000 psig (207 bar) Working temperature: -10 F to 400 F (-23 C to 204 C)
All-welded design for safety
Standard or fine polished wetted surface finishes optional
Medium & High Pressure Check Valve
10C, 15C, 20C, and 60C Series O-Ring Sealed Check Valves feature a resilient O-ring seat design, ensuring noise-free closing and reliable reverse flow prevention. They offer a maximum working pressure of 60,000 psig (4137 bar) with cracking pressures ranging from 14 psig to 26 psig (0.97 bar to 1.79 bar). These valves provide unidirectional flow and tight shut-off for liquids and gases with high reliability. Various connection types and sizes are available.
10C Series: 10,000 psig (690 bar)
Pipe O-ring
Cracking pressure: 14 psig~26 psig (0.966 bar~1.794 bar)
10CO Series: 10,000 psig (690 bar)
Pipe Ball Check Valves
15C Series: 15,000 psig (1034 bar)
O-ring
Cracking pressure: 14 psig~26 psig (0.966 bar~1.794 bar)
Pipe O-ring
Cracking pressure: 14 psig~26 psig (0.966 bar~1.794 bar)
15CO Series: 15,000 psig (1034 bar)
Ball Check
Pipe Ball Check
20C Series: 20,000 psig (1379 bar)
O-ring
Cracking pressure: 14 psig~26 psig (0.966 bar~1.794 bar)
60C Series: 60,000 psig (4137 bar)
O-ring Check Valves
Cracking pressure: 14 psig~26 psig (0.966 bar~1.794 bar)
High Purity and Ultra High Purity Check Valve
High-Capacity Sensitive Check Valves-CF Series
High-Capacity Sensitive Check Valves, also known as exhaust check valves, feature minimal cracking pressure and high capacity.
These valves are typically installed on the exhaust side of a vacuum pump to prevent air from entering the system during pump shutdowns or malfunctions.
Features
◎ 316 SS body, equipped with FKM O-ring
◎ Minimal cracking pressure
◎ Large orifice and high capacity
◎ KF Vacuum Flange Port
Major Materials of Construction
Ultra High Purity High-Capacity Check Valves-CB Series
CB Series Ultra High Purity High-Capacity Check Valves are engineered for low pressure and high flow bulk gas distribution applications. These valves are suitable for use with inert gases as well as most toxic gases, effectively preventing undesired reverse flow within the high purity system.
Features
◎ Metal-to-metal seal between valve body and bonnet
◎ Packless design eliminates particle contamination from packing wear
◎ Integrated purge port on valve body for easy purging
◎ Connection tube in customized length available
◎ Low cracking pressure and high sensitivity
◎ High flow capacity with a flow coefficient (Cv) of up to 165.5
Major Materials of Construction
Anti-Siphon Back Pressure Check Valves CSV Series
Chemical pumps are commonly used in the industries like oil and gas, chemical, pulp & paper, etc. The function is to inject a certain amount of chemicals into the system to improve production or prevent corrosion. Usually, anti-siphon valve, back pressure valve and check valve are installed downstream to ensure the chemical pump works properly.
FITOK CSV series anti-siphon back pressure check valves integrate three different functions into one, help you to save space, improve installation efficiency and reduce maintenance:
Anti-Siphon function:
reduce unwanted siphoning due to wellhead or pipeline condition change.
Back pressure function consistent:
provide back pressure to keep the output flow from chemical pump
Non-Return function:
prevent fluids flowing back to the chemical pump.
Features
◎ Integrate three different functions into one, fewer number of connections improve the system reliability
◎ Small size, light weight and low installation space requirements, easy for installation and operation
◎ Inline adjustment of cracking pressure with broad pressure range
