From Asahi & Polypipe UK
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 UK cone check valves.
Asahi Ball Check Valve [UPVC / CPVC / PP / PVDF]
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 back-flow. 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).
|Sizes||True Union : 0.5 – 2 inch
Single Union: 3 – 4 inch
|Bodies||PVC, CPVC, PP and PVDF|
|Seats||EPDM, FKM or PTFE|
|Seals||EPDM, FKM or PTFE|
|Models||Socket, Threaded, Flanged or Butt End|