Screw Pump is a type of Positive Displacement Pump.The screws are encased inside of a liner, usually made of some sort of metal. The fluid fits into the screw cavities within this liner and is forced through the pump and out of the discharge as the screws rotate and inter-mesh.There are many uses for screw pumps in a variety of different industries, including Manufacturing, Mining, and Oil & Gas. Most of these applications deal with high viscosity fluid, such as oil or asphalt, or multi-phase fluid, which means there is liquid and vapor mixed together in the fluid stream. China manufacturer Hoffwell Pump provides high quality screw pump in cheap price! Contact for a free quote of screw pumps now!