China wholesale sewage pumps

In addition, China wholesale sewage pumps, use a small displacement to pump water first when starting the pump, so that the main line pressure rises slowly, and pressure fluctuations can also be reduced. Mainly because of the different sizes of balls, poor hardness, large clearance, etc.

If the bearing gap is too large, it is easy to loosen the shaft, so the bearing gap should be adjusted in time. Points to note during maintenance In the process of maintenance, you should strictly follow the regulations and pay attention to the following points.

The air bag is easy to form during operation, which causes the pipeline pressure to fluctuate. Bearing 'running to the outer edge' Due to the poor assembly quality of the bearing, after a long time operation of the pump, the bearing 'running to the outer edge' phenomenon will occur, causing the temperature of the bearing to rise, noise and rotation. Bearing problems 1. The more the number of replacements, the larger the hole, resulting in failure to tighten.

There should be no more than 3 gaskets in one place, otherwise it is difficult to ensure the smooth operation of the pump. Second, the rubber ring, plum rubber, etc. The solution is: (1) Weld the bearing bracket with a layer of metal, then turn it to a suitable size, and reassemble; (2) If the bearing gap is large, thin the copper skin can be used to make the static fit of the bearing outer edge meet the requirements value. 3. In order to eliminate this phenomenon, a negative pressure gauge is installed at the inlet of the pump to observe the negative pressure changes at any time, so as to accurately determine the changes in the suction pipeline and clean the bottom valve and filter in time.

The solution is to fix the pump first, then align it, then cut off the flanges on the inlet and outlet pipes, make them align with the flanges on the pump body, install the connecting bolts and tighten them, and then connect the inlet and outlet pipes Connect with the flange. Therefore, if the bearing is found to be abnormal, it should be stopped and replaced in time. When the pump is running, the fluid passage is not smooth, resulting in hydraulic shock and vibration of the pump. Even if the air is discharged completely when the pump is turned on, it is difficult to clean it. 2. 

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