Three-Screw Pump by Chongqing Mingzhu M&e Co. Ltd. is a cutting-edge solution in the Machinery & Industrial Supplies category. Designed and manufactured in China, this progressive cavity pump operates on a unique principle.

The liquid enters the meshing space under the pressure difference. When the volume is increased to the maximum to form a sealed cavity, the liquid moves continuously in the sealed cavity along the axial direction until one end of the discharge cavity.

At this time, the volume of the screw engagement space at one end of the discharge cavity gradually decreases, and the liquid is discharged.

The working principle of the three-screw pump is similar to that of the gear pump, except that the gear is replaced with a screw in the structure. The three-screw pump has small flow and pressure pulses, low noise and vibration, and self-priming ability, but screw processing is more difficult.

There are two types of pumps, single-suction, and double-suction. Generally, single-screw pumps only have single suction.

Three-screw pumps must be equipped with a safety valve (single-screw pumps do not have to be equipped) to prevent damage to the pump or prime mover due to some reasons, such as clogging the discharge pipe, causing the pump's outlet pressure to exceed the allowable value, and the prime mover. The structure can be used for horizontal, flange, and vertical installation.