The centrifugal pump does not deliver flow
Thread Content
Question: We have a centrifugal pump that needs to be shut down frequently – roughly once a day. The inlet filter isn’t very dirty, and we’ve checked the impeller as well; there are no issues with it. Yet the pump still can’t produce the required flow rate. What other possible causes could there be?
Gas in the pipeline, not fully exhausted or turned into gas due to high temperature
The component becomes lighter, or the inlet temperature is too high
It is necessary to clarify the medium, operating conditions, and structural design in order to make an accurate judgment
First, check the motor, then examine the sealing condition, ensure that the inlet and outlet pipes of the system are functioning properly with no blockages, and verify that there is no hot gas entering the pump
It should be a problem with the inlet seal or the pump seal
There is gas inside the inlet pipe, resulting in gas entrapment； It is possible that the medium contains light components, which evaporate and cause gas entrapment
Yes, all the possible reasons need to be thoroughly investigated
The information provided isn’t clear; I can’t help you in this situation. The pump has been stopping frequently lately, so it’s likely that it isn’t able to produce enough flow at the moment. Add me as a friend so we can discuss the situation of the pump in detail
Possible reasons for no increase in output: 1. Motor running in reverse. 2. The filter is clogged. 3. Fault in the pump inlet valve. 4. Pump cavitation. There are many light components, and high temperatures facilitate cavitation. 5. Failure of the pump body. 6. Under negative pressure, the irrigation height is insufficient.