Wafer Type Disc Check Valve

ALIS Valves offers Wafer Type Disc Check Valves designed to prevent reverse flow and protect pumps, pipelines and other process equipment. These valves feature a compact, lightweight body that fits between two compatible pipeline flanges, reducing installation space compared with many conventional flanged check valve designs. An internal disc opens automatically when forward fluid pressure is sufficient and closes when the flow decreases or reverses, helping prevent backflow through the pipeline. Depending on the design, the valve may use a spring-assisted disc mechanism to support responsive closing and reduce the risk of water hammer. Body materials, disc construction, seat materials, spring options and pressure ratings can be selected according to the process media and specified operating conditions.

Wafer Type Disc Check Valves are commonly used in water treatment plants, pumping stations, HVAC systems, industrial process lines, power generation and general fluid handling applications. Depending on the construction and material selection, they can handle compatible liquids, gases and other specified media within their rated pressure and temperature limits. Important selection factors include valve size, flange compatibility, operating pressure, temperature range, flow rate, cracking pressure, installation orientation and material compatibility. Buyers should also consider the valve’s pressure drop, closing characteristics and suitability for the pump’s operating conditions. Correct sizing helps ensure reliable opening during forward flow and effective closure when reverse flow occurs. Selecting the appropriate wafer type disc check valve helps provide dependable backflow prevention, compact installation and efficient operation in compatible industrial piping systems.