Unlike standard swing checks, a ball check valve uses a weighted, rubber-lined ball to manage flow. The logic is simple: when the pump starts, fluid pressure lifts the ball into a side chamber, leaving a clear path for the liquid. Once the pump stops, the ball rolls back onto the seat to block backflow dead in its tracks.
Why is it the top choice for wastewater? The magic lies in the ball's movement. Because the ball rotates constantly during operation, it is effectively "self-cleaning." This prevents sticky debris or thick slurry from building up, which is a common headache in sewage systems.
Our Keylion flanged ball check valves are cast from heavy-duty ductile iron and fitted with NBR-coated balls. If you need a valve that handles dirty fluids without clogging, this is your best bet.
