Industrial Rotary Airlock Valve is a rotary air feeder extensively used as dust discharge device. The Rotary Airlock Valve is better than gravity operated double flap valve as it gives continuous discharge and has a better air tightness. The Rotary Airlock Valve prevents gas leakage through the inlet opening while discharging dust. The Industrial Rotary Airlock Valve consists of a cast or fabricated housing that is provided with a rotor and a shaft.