Mixed-flow pump use common problems and solutions

1, the cause of the overheating of the drive shaft or motor bearing: short oil or bearing rupture.

Solution: Fill the oil or replace the bearing

2. The reason why the mixed-flow pump does not generate water: The pump body and suction pipe are not filled with water; the dynamic water level is lower than the water pump filter pipe; the suction pipe is broken.

Solution: Eliminating bottom valve faults and filling the water; lowering the position of the water pump to make the water filter below the dynamic water level, or pumping the water in the isokinetic water level, and repairing or replacing the suction hose.

3, mixed pump power consumption is too large cause of the cause: the pump speed is too high; water pump spindle twists or water pump spindle and the motor spindle are not the same or not parallel; choose the pump head is not suitable; pump suction sand or obstruction; motor ball bearing damage Wait.

Solution: Check the circuit voltage, reduce the pump speed; correct the pump spindle or adjust the relative position of the pump and the motor; select the appropriate pump for the lift; sort the sediment or obstruction; replace the ball bearing of the motor.

4, mixed flow pump or the occurrence of excessive vibration noise generation reason: pump means is not strong or excessive pump means; motor ball bearing damage; concentric with the pump shaft or spindle motor meandering, and the like are not parallel.

The solution: install stable pumps or decrease the height of the pump device; replace motor ball bearings; correct tortuous pump shaft or adjust the relative orientation of the pump and motor.

5, the lack of mixed flow pump flow causes: the impact of the lack of water pump flow is the suction pipe leakage, bottom valve leakage; inlet block; bottom valve into the water depth ; pump speed is too low; seal ring or impeller wear too much; Super standard and so on.

Solution: Check the suction tube of the mixed flow pump and the bottom valve to block the air leakage source; arrange sludge or obstructions at the inlet of the mixed flow pump; the water depth of the bottom valve must be greater than 1.5 times the diameter of the inlet pipe, increase the depth of the bottom valve into the water Check the power supply voltage, increase the pump speed, replace the seal ring or impeller, etc.

The use of mixed-flow pump involves many aspects, mostly because of improper operation, if you also encounter other problems can not be solved in the process of using the mixed-flow pump, you can contact us at any time.