How to select the head of a centrifugal pump?
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I currently have a centrifugal pump with a capacity of 40 cubic meters and a head of 35 meters; the outlet pipe is not filled to capacity, and the flow rate is very low. If I replace it with a centrifugal pump with a capacity of 50 cubic meters and a head of 50 meters, will the outlet pipe be filled to capacity?
If the pump is matched to the piping configuration, your problem will not occur. Based on your situation, it might be that the pump inlet is not installed properly, there is a problem with the centrifugal pump impeller, or even the power supply connection is reversed. Of course, if the 40 cubic meters and 35-meter head requirements are not met, it can be replaced.
Based on the description, if the outlet pipe is not full, it means the flow rate is insufficient. The head should not need to be increased; a detailed calculation is still required~
Should it be changed to a centrifugal pump with a capacity of 50 cubic meters and a head of 50 meters? What is the diameter of yours? It’s not necessarily the case that the larger it is, the better; choosing the right one is very important
This is related to your piping; if the piping is installed in strict accordance with the requirements, you won’t encounter this issue.
Recalculate the head required for discharge, plus pipe losses. If the pressure head is insufficient, it can also result in a reduced flow rate or even no water output