Screw pump can be used to replace rotary airlock feeders that have prematurely failed when handling fine abrasive materials. The screw pump utilizes the material to be conveyed to form a seal during operation. An integral flap gate prevents blowback when introducing material into the system on startup or when running empty. The hard-coated screw design provides a continuous flow of material into the conveying airstream.

Wm. W. Meyer & Sons Inc.
(800) 963-4458;
www.rotaryvalve.com