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What is the reason why the centrifugal pump can not meet the flow and head requirements? Moderators: Moderators Jump to page : 1 Now viewing page 1 [25 messages per page]	View previous thread :: View next thread
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hhm1020

Posted 2022-06-23 1:50 AM (#258295)
Subject: What is the reason why the centrifugal pump can not meet the flow and head requirements?

Expert Yogi

Posts: 8285
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What is the reason why the centrifugal pump can not meet the flow and head requirements?

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.
Roots vacuum unit of Technical specifications

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