Rotary airlock valves are a critical component in many material handling systems. From dust collectors to pneumatic conveying systems, rotary airlocks not only control the feed rate but also minimize air leakage between equipment above and below the valve with differing levels of pressure or vacuum. In dust collection systems, the rotary airlock allows continuous product discharge without having to turn off the vacuum to dump the accumulated material. Rotary airlocks are vital in pneumatic conveying systems, allowing the introduction of material into a pressure or vacuum stream with minimal loss of air. Redshift enviro make rotary air lock valves are known for workmanship, functionality, longevity and serviceability. These are repeatedly proven to be the best available. Our rotary airlock valves are used in a wide range of applications where there is need to minimize system air loss while transferring material between vessels with differing pressures.