1. air leakage of centrifugal pump or suction pipe; 2. the suction pipeline or centrifugal pump inlet is blocked, and the suction resistance is too large; 3. the wear clearance of impeller ring is too large; 4. the impeller is blocked or severely worn and corroded; 5. the rotation direction of the centrifugal pump is wrong or the impeller is installed reversely; 6. the outlet valve of the centrifugal pump is not opened or cannot be opened; 7. the motor speed is not allowed; 8. the selection or function of centrifugal pump is inconsistent. Treatment method: 1. check and clean the suction valve and pipeline; 2. remove impeller blockage or replace impeller; 3. replace the impeller sealing ring; 4. check and eliminate air leakage; 5. open the outlet valve of the pump and adjust the valve opening; 6. adjust the rotation direction of the pump; 7. increase the motor speed; 8. check whether the functional parameters of the pump meet the working conditions and adjust them.
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What is the reason why the centrifugal pump can not meet the flow and head requirements?
What is the reason why the centrifugal pump can not meet the flow and head requirements?
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