Screw pump is also often seen in industrial development of a tool, then screw pump in the end what role, screw pump what classification, respectively, and what role, the following we will talk about it.

The screw pump is a positive displacement rotor pump, which relies on the volume change of the sealing cavity formed by the screw and bushing to absorb and drain the liquid. The screw pump is divided into single screw pump, double, three and five screw pumps according to the number of screws. The characteristics of screw pump is a smooth flow, pressure pulsation, self absorption capacity, low noise, high efficiency, long service life and reliable operation; and its outstanding advantage is not the formation of eddy current, the transmission medium is not sensitive to the viscous medium, which can transport high viscosity medium.

The screw pump is divided into two parts according to the number of screw.

Single screw pump -- a pump with single screw in the inner thread groove of pump body.

Twin screw pump -- pump for transferring liquid by two screws.

Three screw pump -- pump for transporting liquid by mutual engagement of multiple screws.