1.Import and export pipeline, flow of centrifugal pump impeller partially blocked, the scale deposition in the pump inside. Check the pipe and pump cavity to remove the blockage, re adjust the valve size.
2.The voltage is low. The solution to the problem of centrifugal pump flow: stable voltage.
3.Centrifugal pump impeller wear. Solution: replace the new impeller.
4.Is not the above several reasons please according to the following centrifugal pump does not water the reason comprehensive inspection.
5.The centrifugal pump inlet or outlet valve is not open, the inlet pipe is blocked, the pump cavity impeller flow channel is blocked. Check whether the import and export of the valve is closed to open the closed valve, check the inlet and outlet pipes and pump impeller is a debris blockage removal.
6.The motor's running direction is not right, the motor phase speed is very slow. Change the motor wiring to adjust the motor's turn, check the power supply into the wire fastening good motor wiring.
7.The centrifugal pump inlet pipe leakage, leading to the centrifugal pump has been in the state of air suction. Check the leakage point of the imported pipeline leak to repair the leak, tighten the cover, remove the air.
8.The centrifugal pump is not filled with liquid, the pump cavity has air. Unscrew the pump cover or open the exhaust valve and discharged into the air.
9.The centrifugal pump inlet pipeline centrifugal pump water flow lack the required flow, or suction is too high, the inlet pipe valve centrifugal pump seal is not good Water Leakage. Check the pump (pipe network and the use of water pipe with the suction process is prone to this phenomenon), adjust the distance to shorten the distance, or replace the self suction pump. 10, pump outlet pipe resistance is too large, pump selection is not appropriate or the pump head can not reach. Reduce the pipe bend, bend too much can be installed on the automatic exhaust valve, exclude the pipeline corner of the condensation of air, or re election pump
