Working wheel | page: 4

The impeller or impeller is the main working body of the pump. The purpose of the impeller is that it converts the rotational energy received from the motor into the energy of the fluid flow. Due to the rotation of the impeller, the liquid in it also rotates and centrifugal force acts on it. This force causes the fluid to move from the central part of the impeller to its periphery. As a result of this movement, a vacuum is created in the central part of the impeller. This vacuum creates the effect of suction of liquid from the center hole of the impeller directly through the suction port of the pump.

The liquid, reaching the periphery of the impeller, is discharged under pressure into the discharge pipe of the pump. The outer and inner diameters, the shape of the blades and the width of the wheel working air gap are determined by calculations. Impellers can be of different types: radial, diagonal, axial, as well as open, semi-closed and closed. The impellers in most pumps are of a three-dimensional design that combines the advantages of radial and axial impellers