Centrifugal pumps work on the centrifugal principle. The liquid is entrained by the rotating wheel and pressed on a circular path to the outer wall of the pump that leads to the flow of the medium. The resulting kinetic energy of the liquid increases the pressure and then presses the liquid into the pressure connection.
The operating point of a centrifugal pump always lies on the pump curve.
Recommendation: With the help of a pressure gauge installed in the pressure line, the actual flow rate can be easily determined via the indicated pressure and the characteristic curve.