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.

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.

CL Series Metal-Seated Lift Check Valves feature a rugged, all-stainless steel construction with a metal-to-metal seal. These valves are free of spring or elastomers, and their union bonnet design adds safety. The lift poppet is gravity-dependent, with a reverse flow coefficient of less than 0.1% of the forward flow coefficient. These valves prevent reverse flow up to 6000 psig (413 bar) and 900°F (482°C).

CSV Series Anti-Siphon Back Pressure Check Valves combine anti-siphon, back pressure, and non-return functions into one compact valve. With a maximum working pressure of 10,000 psig (690 bar), these valves allow inline adjustment of cracking pressure, with a broad pressure range of 50 ~ 450 psig (3.44 ~ 31.0 bar). Their small size and lightweight design enable easy installation and operation, reducing the number of connections required and improving system reliability.

CW Series All-Welded Check Valves are designed with an internally threadless, all-welded body, supporting a maximum working pressure of 3000 psig (206 bar) and a cracking pressure of less than 2 psig (0.14 bar). The standard surface roughness is finished to Ra 20 μin. (0.51 μm), with electropolished wetted surfaces as an option. These valves are suitable for high-purity and ultra-high-purity applications.

CHP Series Low Pressure Medium Flow Check Valves feature a low cracking pressure (1/3 psig (0.02 bar)), ensuring high sensitivity.They offer a maximum working pressure of 145 psig (10 bar) and a flow coefficient (Cv) of 2.5. A metal-to-metal seal between the valve body and gasket enhances sealing performance, while a cone face seal between the seal ring and valve body provides excellent reverse sealing. Various connection types are offered.

CB Series Low Pressure High Flow Check Valves feature a low cracking pressure (≤0.12 bar [1.8 psig]), ensuring high sensitivity. They also provide a high flow capacity, with a flow coefficient (Cv) of up to 165.5, and a maximum working pressure of up to 250 psig (17.2 bar). A metal-to-metal seal between the valve body and bonnet ensures reliable sealing, while the packless design eliminates particle contamination from packing wear. An integrated purge port on the valve body allows for easy purging.

CF Series High Flow Sensitive Check Valves, also known as exhaust check valves, feature a 316 SS body with minimal cracking pressure, high flow capacity, and nonadjustable cracking pressure.These valves come with KF40 vacuum flange ports and various cracking pressure ranges. They are typically installed on the exhaust side of vacuum pumps to prevent air from entering the system during pump shutdowns or malfunctions.

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.

10CO, 15CO, 20CO, and 60CO Series Metal-Seated Ball Check Valves, designed for high pressure working conditions, feature an integral ball and poppet design that ensures positive, in-line seating without "chatter." The maximum working pressure is up to 60,000 psig (4137 bar). The poppet design is optimized for axial flow with minimal pressure drop. Optional materials for the cover and ball poppet are available for extended life. Various connection types and sizes are offered.

10SC, 15SC, and 20SC Series Subsea O-Ring Sealed Check Valves, designed for subsea applications, these valves are made from high-tensile 316 stainless steel with a maximum working pressure of up to 20,000 psig (1379 bar) and a maximum water depth of 13,800 ft (4200 m). Featuring a soft seat seal ring for tight shut-off, these valves are ideal for gaseous media. They are highly resistant to corrosion and meet NACE MR0175 requirements. Various connection types and sizes are offered.

10SCO, 15SCO, and 20SCO Series Subsea Metal-Seated Check Valves are specifically designed for subsea environments and feature a high-tensile 316 stainless steel valve body. They offer a maximum working pressure of up to 20,000 psig (1379 bar) and a maximum water depth of 13,800 ft (4200 m). The metal-to-metal seat poppet design is suitable for fluid media and is unaffected by media temperature. These valves provide exceptional corrosion resistance and meet NACE MR0175 requirements. Various connection types and sizes are offered.