Centrifugal pump does not look at the reasons for running

Centrifugal pump does not look at the operation of the reasons and measures are as follows: 1, the pump or the liquid medium with air. Action: Open the pilot valve exhaust. 2, inhalation pressure enough. Action: Increase the suction pressure and open the pilot valve exhaust. 3, out, into the pipeline blocked. Action: Clear the blockage. 4, there are foreign objects in the impeller. Action: Check the impeller to remove foreign matter. 5, liquid viscosity exceeds the design index. Remedy: Check the material composition and dispose of it. 6, mouth ring wear. Remedy: Repair or replace worn parts. 7, the prime mover speed is not enough. Action: Increase drive speed.