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The fault of Centrifugal pump does not output liquid

2013-07-08

Have you ever met the fault of centrifugal pump didn’t output liquid and treating capacity was not enough? How to solve the fault of centrifugal pump? The following are the methods according to different reasons which may cause the fault of centrifugal pump didn’t output liquid and treating capacity was not enough.


1 If the centrifugal pump occurs the above fault, may be caused by there has residual air in the pump case or suction pipe, pipeline leaks air, we should exhaust air from the vent valve or fill the pump again, tighten up the leak place.


2 If there is some sundries blocking in the pump or pipeline may also cause the above fault of pump, we should check and clear.


3 If the rotate speed of pump or the direction of rotation is wrong, we should matching rotate speed or change direction of rotation of driving machine according to the requirement.


4 The liquid is vaporized in pump or suction pipe, we should decrease the resistance of suction pipe, reduce transport temperature or enter into pump with positive pressure.


5 If the lift of pump is not enough, we should reduce the resistance of discharge system, convert by the density and viscosity of liquid.


6 Sealing ring is wear too much or install the sealing wrongly, we should replace the sealing ring or set up the sealing again.