What are the problems or faults that could happen in a pump and how to troubleshoot it?

A pump is a common mechanical device used to move liquids or gases. However, due to unavoidable wear and other factors, some problems or malfunctions of the pump may occur. Have you encountered the following problems in the process of using the pump daily?

If the pump fails to deliver water

This problem could be caused because of the rotation in the wrong direction, and it could also happen if the pump is not primed or filled with water. This fault could happen if there is an air or vapor pocket in the suction line and also could happen if there are air leaks in suction line or stuffing box. If the pump is not up to its rated speed then it could also be a reason for this, so all of this must be considered if the pump fails to deliver water.

Pump does not prime

It could happen if the pump and suction line is not filled with water, or because of air leaks in the suction line or stuffing box. This problem could happen if there is vapor or air in the liquid.

Pump losses water after start

This could happen if there is an air or vapor pocket in the suction line or if there is gas or vapor in the liquid. If the suction lift is too high then it can cause the water to lose.

Overheating of stuffing box

This could happen if there is gas or vapor in the liquid or if the gland packing is too tight. This problem could arise if the gland packing is not lubricated or if there is not enough cooling water.

Pump overloads prime mover

If the pump runs beyond the lower recommended head or due to the low pump efficiency.

Pump does not deliver the rated discharge

This could happen if the foot valve is very small or clogged, or because of the damages of the wear rings or impeller. This could happen if there is no proper power supply, or because of the variation of the speed than it is specified.

Excessive power consumption

So the excessive power consumption is due to mechanical or hydraulic problems. The mechanical problems could be bearing failure, pump seizure, and poor shaft alignments. If the viscosity is high then it could cause the motor overloading.

Pumps may encounter various problems or failures during use, but most problems can be resolved through inspection and maintenance. Regularly checking pump health, cleaning and lubricating pump components, and promptly repairing any problems can extend the life of your pump and keep it functioning properly. If the problem cannot be solved, please contact the person in charge of our team in time, and the technician will help you solve all the problems.