Stainless Steel Low Pressure Wafer Type Spring Check Valve

Stainless Steel Low Pressure Wafer Type Spring Check Valve

Check valves can also be used to supply auxiliary systems in which the pressure may rise above the system pressure. Check valves can be divided into swing check valve (rotating according to the center of gravity) and lift check valve (moving along the axis).
Check valve this type of valve's role is to allow the medium to flow in one direction only, and prevent the opposite direction of flow. Usually this valve is automatic, in a direction of flow of fluid pressure, valve open; fluid flow in the opposite direction, by the fluid pressure and the valve flap of the self-gravity of the valve flap on the valve seat, thus cutting off the flow.

 Check valves are two-port valves, meaning they have two openings in the body, one for fluid to enter and the other for fluid to leave. There are various types of check valves used in a wide variety of applications. Check valves are often part of common household items. Although they are available in a wide range of sizes and costs, check valves generally are very small, simple, or inexpensive. Check valves work automatically and most are not controlled by a person or any external control; accordingly, most do not have any valve handle or stem. The bodies (external shells) of most check valves are made of plastic or metal.

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