Rotary Air Lock Valve is suited for low and medium differential air pressure systems, gravity, or volumetric feeder discharge equipments. The Air Lock Valve allows free flowing solids to pass from one to another valves space with a different air pressure. The Rotary Air Lock Valve is useful as one component in a bulk or specialty material handling system. Rotary Air Lock Valve can regulate the flow from one chamber to another while maintaining a good airlock condition.