The use of the long shaft pump improves the efficiency of our work and reduces the workload of the workers. But in its work, the user is concerned about the work, the long shaft pump will also have trouble, so what are the common long shaft pump failures? Is there a troubleshooting solution? I believe these are all the information users want to know. Then the problems will be analyzed.

1. It can't start

Reasons: the reasons for the failure of the long shaft pump are motor or power supply system failure, the rotor parts have foreign objects, the bearings are stuck, and the starting condition is not satisfied.

The solution is to overhaul the motor or power supply system, clean up the rotor parts, clean up or replace the bearings, check the conditions to meet the conditions of insufficient flow or no water.

2. A stainless steel self-priming pump without water or water

Reasons: generally, there are impurities on the suction side or outlet side or impeller, excessive wear of seal ring, impeller damage, incorrect steering, low lodging, inadequate depth and air intake.

The solution is to clean up filters, impeller, guide vane, discharge pipe and valve system, replace damaged parts, calibrate steering, measure voltage and frequency, check motors, and improve suction level.

3. Abnormal vibration and noise of the long shaft pump

Solution: we need to increase the intake water level of the long shaft pump, or turn off the outlet valve and impeller, correct the static balance and correct the concentricity of the shaft, and replace the straight shaft, the tightening anchor bolt, the replacement bearing and the guide bearing.

Is a kind of long axis pump used to transport water and solid particles containing a certain sewage, industrial wastewater and other harsh corrosive substances in equipment, sewage treatment, water treatment, primary metallurgy of iron and steel industry, mines, power plants, municipal engineering, water conservancy and other fields have played an important role. I believe that the failure of long axis pump will cause great influence on the use of long axis pump. Accelerating the research of these failures will play a very positive role in the future of long axis pump.

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