Rotary Discharge Valve,also known as rotary airlock feeder,rotary unloader,star discharge valve,is a key piece of equipment for quantitative discharging and air isolation of powder,granular and small lump bulk materials.

It is widely matched with bag dust collectors,cyclone separators,silos and pneumatic conveying systems in industrial fields.

Working Principle

The material naturally falls into the rotor chamber from the upper inlet.Driven by the reduction motor,the rotor rotates at a constant speed,transports the material to the lower outlet and discharges it continuously.The tiny gap between rotor and valve body forms an effective airlock seal,which isolates positive and negative pressure,prevents air backflow and maintains the stable operation of the whole system.

Main Features

Good airtight performance,effective pressure isolation and no air leakage

Steady volumetric feeding and uniform discharge flow

Optional carbon steel,stainless steel 304/316,wear-resistant lining

High temperature resistance,wear resistance,stable running,low failure rate

Compact structure,easy installation and simple daily maintenance

Application Industries

Environmental protection dust removal,chemical industry,cement,metallurgy,grain,food,plastic,pharmaceutical,mining and other industries.Ideal for ash discharge of dust collector,silo unloading and pneumatic conveying feeding.