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Emily HallAug 11, 2025
What to do if my PSG Wilden P200 Water Pump runs but little or no product flows?
- MMatthew WilsonAug 11, 2025
If your PSG Water Pump is running, but little to no product is flowing, first check for pump cavitation. If cavitation is the issue, slow the pump speed down to allow the thick material to flow into liquid chambers. Also, verify that the vacuum required to lift liquid is not greater than the vapor pressure of the material being pumped (cavitation). Finally, inspect the ball check valves for sticking, which can occur if the material being pumped is incompatible with the pump elastomers, causing swelling. Replace the ball check valves and seals with proper elastomers. Note that valve balls may become stuck in the seats as they wear and become smaller, so replace the balls and seats in this case.

