The reason and treatment of the low speed of the axial flow pump

The slow outlet speed of axial flow pump is less than the pipe, half pipe or one third pipe, indicating that the pump is in the state of small flow and low head.

1. Wrong model selection, the selected pump has a low head, and the pump with a high head is replaced.

2. The pump model selection is correct. It is also possible that the pump speed does not reach the rated wage speed. It is recommended to increase the speed of the engine or increase the transmission ratio.

3. Check whether there is grass, plastic bag, woven bag, cloth and other soft materials winding on the guide vane body to block the flow passage.

4. When the blade is damaged, angle or blade is missing, the flow rate will decrease obviously, but at the same time, the vibration will be very obvious with violent vibration. Replace blades and rubber bearings. At this time, the rubber bearing is seriously worn and replaced. Severe wear of rubber bearing, iron grinding, wear of stainless steel shaft sleeve or plating layer.

5. The steering is not correct. Generally speaking, the axial flow pump rotates clockwise from the power end,