What Are The Common Failure Problems Of Diaphragm Pumps?

Diaphragm pump in daily use, there will be inevitable failure problems, so how should we determine the diaphragm pump failure is caused by which reasons? Below we will briefly introduce the common failure problems of diaphragm pumps, I hope you have reference.

1. Pump pumping speed slows down

(1) If there is a drop in air pressure, check the value of the inlet pressure gauge for abnormalities before confirming the opening position of the air source valve. Before using the solenoid valve to turn on and off the air supply, check if the plastic solenoid valve body is damaged.

(2) When the silencer is blocked, the air cannot be evacuated quickly, slowing down the pump.

(3) When the compressed air contains too much water or impurities, the water or impurities enter the air valve of the diaphragm pump and block the air inlet or air spool.

(4) The upper and lower end caps of the air distribution valve are cracked and leaky due to the constant impact of the spool.

2. Reduced flow rate

(1) Wear of inlet and outlet check valves becomes small, or there are streaks and large particles blocking the plastic ball. When pumping material, the liquid at the discharge is refilled and when discharged, the material is pressed back from the inlet.

(2) Over time, the diaphragm stretches and deforms, causing the volume of the material chamber to decrease

(3) The thick diaphragm is damaged and the diaphragm appears black.

3. The material has impurities or has oil stains

(1) Usually caused by diaphragm rupture

4. Air inlet and outlet leak

(1) Screws are not tightened

(2) Damaged O-ring or deformed ball seat

(3) The ends of the pump casing are not tilted to a position above the bore, causing the two discharge ports or inlets to not be in the same plane.

The above is the diaphragm pump shared today there may be failure problems, more information related to welcome feel free to consult Vshida micro-motor