Pneumatic Screw Pump

Designed for the chemical, cement and mining industries, this pneumatic screw pump is a heavy-duty injection pump that feeds dry pulverized material into a pneumatic conveying line. Constructed with a heavy steel channel frame, oversize bearings, integral check valve and low inlet-hopper height, it is capable of conveying pressures up to 15 psi. It can handle highly abrasive, friable or very fine powders that typically wear out other dilute-phase feeders. Unlike rotary airlocks that require tight clearances to seal against conveying air, this pump uses the material to form the seal. An integrated gate prevents blowback, and the pump can withstand temperatures up to 450°F. It offers increased wear resistance to abrasive materials, as well as a low profile and longer bearing life with fewer system shutdowns, resulting in reduced operating and maintenance costs.