What are the common faults of micro DC diaphragm water pumps?

2023-04-12 22:12:13

There are many common faults of micro DC diaphragm water pumps. The following are some common faults, their causes, and solutions:

Pump does not absorb water: The reason may be that the air inside the pump has not been completely discharged, there is air leakage in the suction pipe, or the resistance of the suction pipe is too high. The solution is to check if there is any air leakage in the pump's suction pipe, eliminate the air inside the pump when filling, and reduce the resistance of the suction pipe.

Insufficient flow rate: The reason may be blockage of the impeller or pipeline, high head, insufficient speed, etc. The solution is to check whether the impeller and pipeline are unobstructed, reduce the head, and increase the speed.

Excessive power consumption of the pump: The reason may be that the packing is pressed too tightly, the friction surface of the packing is severely worn, or the medium inside the pump exceeds the allowable value. The solution is to adjust the tightness of the packing, check and replace severely worn parts, or check the temperature and concentration of the medium inside the pump.

Pump vibration: The cause may be cavitation of the pump, misalignment between the pump shaft and motor shaft, or loose pipe supports. The solution is to adjust the pump speed or add water to the inlet of the water pump to eliminate the influence of cavitation, check whether the pump shaft and motor shaft are concentric, and reinforce the pipeline support.

Bearing overheating: The reason may be a lack of oil or poor oil quality in the bearings, severe bearing wear, or pump motor misalignment. The solution is to add new oil or replace bearings, check and replace severely worn bearings, check and adjust the pump and motor to make them concentric.

Pump noise: The reason may be insufficient or excessive medium in the pump, or air in the pipeline. The solution is to check if the medium inside the pump is sufficient or excessive, and discharge the air from the pipeline.

Pump leakage: The cause may be damage or looseness of the sealing gasket or ring, or water leakage at the pipeline joint. The solution is to check and replace the sealing gasket or ring, or check and tighten the pipeline joint.

These are some common faults, causes, and solutions of micro DC diaphragm water pumps. If you encounter other problems during use, you can refer to the user manual or contact professional technical personnel for maintenance and repair.