Why does the flow rate of a centrifugal pump increase as the water level rises?
Thread Content
This post was last edited by Ah on 2015-11-16 at 14:44. Why does the flow rate of a centrifugal pump increase as the water level rises? Thank you
Dear sea friend, please describe the problem in a complete title! Is this a way to help more people understand that participating isn’t smart? Feel free to join more in the exchanges and sharing!
Do you mean that as the water level at the pump inlet rises, the flow rate of the centrifugal pump increases? If that’s the case, it’s equivalent to increasing the pressure at the pump inlet.
The inlet head increases. . . . . . . . . . . . . . . . .
As the water level at the pump inlet rises, the inlet pressure of the pump also increases, resulting in a decrease in the pressure difference between the pump’s inlet and outlet. The head of the pump decreases as well (head is proportional to the pressure difference between the inlet and outlet). From the performance curve of the centrifugal pump, it can be seen that the operating point of the pump shifts to the lower right portion of the curve, and at this point the flow rate increases.