Stainless Steel Wafer-Type Disc Check Valve. Fig. 41

Our wafer-type disc check valve does not need to be in a specific position. This is because, unlike a swing check valve, it does not operate by the action of gravity. Our disc check valve has a spring with a certain level of stiffness that holds a single disc in place above the sealing ring; when fluid—usually water—reaches it, its pressure overcomes the spring’s resistance, allowing the fluid to flow in that direction. However, if the fluid attempts to flow backward in the opposite direction, it cannot do so due to the spring’s action. It is a spring-loaded valve that allows flow in only one direction, prevents damage caused by backflow, and can be easily installed for use in low-pressure applications, such as process lines, water, steam, gas, and oil systems. Made entirely of stainless steel, it offers good performance, a long service life, and a compact, lightweight design, making it suitable for a wide range of applications where space and weight are important considerations.