5 common failures of Wilden pneumatic diaphragm pumps:

1. The pumping speed of the pump body slows down

2. Pump flow decreases

3.Pump not working

4. There are impurities or oil in the materials

5. Material leakage at the inlet and outlet of the pump body

Solution:

1. Wilden pneumatic diaphragm pump pressure drops

1. The oil supply valve is not replenishing enough: repair the oil valve.

2. Insufficient feed or leakage of feed valve: Check the feed situation and feed valve.

3. Oil leakage from plunger seal: inspect the sealing part.

4. The oil level in the oil tank is too low: add new oil.

5. Pump body leaks or diaphragm is damaged: Check and replace the sealing gasket or diaphragm.

2. The flow rate of Wilden pneumatic diaphragm pump is insufficient

1. The feed and discharge valves are leaking: repair or replace the feed valve.

2. The diaphragm is damaged: Replace the diaphragm.

3. The rotation speed is too slow and the adjustment fails: inspect the control device and adjust the rotation speed.

3. Oil leakage from Wilden pneumatic diaphragm pump

1. The gasket and sealing ring are damaged or too loose: adjust or replace the gasket and sealing ring.

4. The pressure of the Wilden pneumatic diaphragm pump is insufficient or increased.

1. The pressure regulating valve of the pneumatic diaphragm pump is improperly adjusted: adjust the pressure valve to the required pressure.

2. The pressure regulating valve fails: Check the pressure regulating valve.

3. Pressure gauge: Repair or replace the pressure gauge.