Industrial Plastic Check Valves

From Asahi America & Polypipe Effast

Check valves are self-contained, automatic valves, used to prevent the reversal of flow in a line. When open and under flow pressure, the checking mechanism will move freely in the media, offering very little resistance and minimal pressure drop. 

Fusion supplies Asahi/America swing, ball and wafer check valves, along with Polypipe Effast cone check valves.

The Asahi ball check valve can be installed vertically or horizontally and employs a free moving ball, which unseats to permit flow in one direction, but seals against a seat to prevent backflow. Fusion can also offer fit-out kits to convert an Asahi ball check valve into a foot valve for installation onto the suction side of pump (more information below).

Fusion stocks fit-out kits which convert an Asahi Ball Check Valve into an Asahi Foot Valve. Foot Valves can be installed vertically or horizontally on the suction side of a pump and are commonly used in chemical processing, water & wastewater, landfills, irrigation, food processing and mining applications.

Asahi swing check valves have a solid thermoplastic body with a large “flapper” that seats against the body of the valve. They provide a large fluid flow area with a removable bonnet that allows for the body to be cleaned out without removing the valve from the pipeline. This is beneficial for installations that may contain debris or other items that could potentially clog the valve.

The Asahi wafer check valve has a solid thermoplastic body with a very thin (“wafer” thin) profile that makes them ideal for applications requiring valves with short takeout lengths. Similar in operation to a swing check valve, the wafer check has a solid thermoplastic disc and seat arrangement that performs the check action. Because of its slim profile, wafer style checks are unlikely to clog which makes them ideal for service lines with large debris or solids.

The Polypipe Effast cone check valve offers a spring assisted cone to provide the check action ideal for use in applications that require precise closure and noiseless movement. Suitable for use in water treatment, SPAs and pools.