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Wafer Check Valves
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Wafer check valves are swing check valves with a thin, wafer style profile. Designed for inline installation between flanges, wafer check valves are used to restrict media flow to a single direction, effectively preventing backflow and securing system integrity. As one of the most compact and lightweight valve types available, their unique streamlined design shrinks total valve footprint and allows for easy integration into constrained locations and hard-to-access areas. The engineered flat disc design features hinges and a seal seat that allows the valve to be pushed open only by positive flow and seal shut the moment fluid flow stops or negative pressure is encountered. Also known as one way valves, non return valves, or plate valves, these versatile valves are suitable for installation in either horizontal or vertical plumbing systems.
Our wafer check valves are molded from high quality PVC or CPVC and USA made by leading manufacturers. These durable thermoplastics offer excellent resistance to corrosion from weather, soil, and many industrial chemicals. We offer wafer check valves in sizes ranging from 2 inches up to 8 inches in diameter designed for ANSI 150 and PN10 flange connections. All materials meet ASTM, ANSI, and NSF 61/372 standards. They are certified lead free and safe for potable water systems.
Features & Options
- Compact Design: The thin, lightweight profile fits easily between flanges and saves valuable space in complex piping layouts.
- Durable Materials: Constructed from professional grade PVC or CPVC that meets ASTM standards for lasting performance and chemical resistance.
- Size Range: 2” to 8”.
- Enhanced Sealing: Valve seat seals are available in EPDM, FPM (Viton), or PTFE (Teflon) to match specific liquid handling requirements.
- Spring Options: Disc springs are available in 316 stainless steel or Hastelloy, ideal for increasing valve closure strength in systems handling viscous fluids.
- Certified Safety: Materials meet ANSI NSF 61 and 372 standards for fresh water systems.
Common Industry Uses
Wafer check valves are widely used in industrial and municipal plumbing systems and chemical process piping. Their compact size makes them an easy to integrate choice for small to large diameter pipelines that need backflow protection. Because they resist corrosion and handle a wide range of fluids, they are frequently deployed in water treatment facilities, irrigation lines, and commercial building systems.
Wafer check valves are swing check valves in function but differ in their thin, wafer style profile. In plumbing valves, the wafer check valve is one of the smallest, most compact and lightweight PVC valve types available. Their unique streamlined design reduces total valve footprint and makes for easier integration into various plumbing systems, constrained locations and other hard-to-access areas. The wafer check valve has been designed for in-line installation to control media flow in a single direction only by effectively restricting the ability for plumbing back flow. This PVC / CPVC valve type is engineered as a flat disc with hinges and a seal seat. This hinged design allows wafer valves to be pushed open by positive flow but then seal shut when the fluid flow stops or when negative flow pressure is encountered in the opposite direction. Wafer check valves are also called one way valves, non return valves, clack valves, dual plate valves and reflux valves. This valve type is acceptable for installation in either horizontal or vertical plumbing systems.
Our wafer check valves are molded from high quality PVC or CPVC provided by USA manufacturers Hayward and Cepex. As plumbing materials, PVC and CPVC are durable thermoplastics that resist corrosion from weather, soil and many industry chemicals, making these valves suitable for a wide range of applications. We offer wafer check valves in plumbing sizes from 2 inches up to 14 inches in diameter. Wafer check valves are intended for ANSI 150 and PN10 flange type connections. No specialty flanges are needed, and spacers are only recommended when matching to schedule 80 pipe. Disc springs are available in 316 stainless steel or Hastelloy and are ideal for increasing valve closure strength with more viscous fluids. Valve seat seals are offered in EPDM, FPM (Viton) or PTFE (Teflon) O-rings to match compatibility across specific liquid handling needs. Complete valve production materials meet ASTM D1784, ANSI NSF 61 and 372 standards as lead free plumbing approved for use in potable water systems.