Common problems and maintenance skills of micro-diaphragm water pumps

1. The water pump is weak and the pumping speed is reduced. One is that the air source pressure is reduced. Check the pressure of the intake pressure gauge first, and then check the opening position of the air source valve. If the air source is opened and closed using a solenoid valve, check whether the plastic valve plate of the solenoid valve is damaged or not. The plastic valve cannot be fully opened.

2. Reduced flow. In this phenomenon, the wear and tear of the import and export check valve (plastic ball) becomes smaller. Or there are strips, large particles stuck to the plastic ball. As a result, the material liquid at the discharge port is refilled during suction, and the material is pressed back from the feed port during discharge.

3. The micro-diaphragm water pump does not go. One is that the spool is severely worn and stuck. The second is the wear of the shaft sleeve of the central shaft.

4. Check whether the valve ball is stuck. If the operating liquid is incompatible with the elastic body of the pump, the elastic body will shrink. Please replace it with a new elastic body of appropriate material in time.

5. The air valve of the micro-diaphragm water pump is frozen: check whether the water content of the compressed air is too high, and install air drying equipment.

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