1. The concept of single screw pump Single screw pump is a new type of internal rotary reciprocating positive displacement pump. The main working parts are eccentric screw (rotor) and fixed bushings (stator). Compared with other pumps, the advantages of single-screw pump Compared with the centrifugal pump, single-screw pump does not require valves installed, and flow is a stable linear flow. Compared with the plunger pump, single screw pump has better self-suction capacity. Compared with the diaphragm pump, single screw pump can convey a variety of mixed impurities, containing gas and solid particles or fibers of the medium, but also convey a variety of corrosive substances. Compared with the gear pump, single screw pump can deliver high viscosity substances. Unlike plunger pumps, diaphragm pumps and gear pumps, single-screw pumps can be used for filling and metering medications.
