The pump shaft rotates with the impeller or rotor fixed on it

Coupling problem The main function of the coupling is to connect the pump and the motor to rotate together and transmit the torque. There is an air bag in the outlet pipeline. Can not work normally.This situation often occurs in large and medium-sized water pumps that use sliding bearings. Bending machine pump shaft

The outlet valve opening is too small. 2. (2) When the pump is repaired and installed on the inlet and outlet pipelines, due to the changes in pipeline displacement, especially the newly commissioned pipeline, the first time the inlet and outlet flanges are removed, the relative displacement of the flanges is very large. In severe cases, pump jams occur. Fives. (4) When replacing the pump, because the pump base does not match the foundation bolts, the holes in the pump base are often enlarged.

The pump shaft rotates with the impeller or rotor fixed on it. 3. Bearing wear is generally accompanied by heat and abnormal sound.. 2. (1) When the pump is overhauled and installed, the pump body, the pump shaft, and the level of the pump and the motor should be re-aligned to meet the specification requirements, otherwise the pump will be unbalanced during operation and cause vibration., it is difficult to guarantee the maintenance quality. (3)

According to the requirements of the maintenance regulations, copper sheets should be used as gaskets when aligning the pump. Centrifugal pumps, especially high-lift, large-displacement pumps, are prone to impassable vibration when the flow is small. 3. 1. The problems are as follows. The fluid passage is not smooth.

The suction side of the pump is equipped with a bottom valve and a filter on the suction side China drainage pumps manufacturers of the pipeline or the inlet side of the sundries. Bearing wear At present, the bearings purchased from the market have more or less quality problems. The main reasons are as follows. The bearing gap is too large. The solution is to install the emptying point as high as possible, and pay attention to the exhaust treatment of individual parts