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Rotary airlocks are used to discharge bulk solids materials such as powders, granules, and pellets from hoppers, bins, receivers, and cyclones into a pneumatic conveying system.

Rotary airlocks serve a number of purposes that include acting as a sealing device against loss of air while maintaining a flow of bulk materials between components in a pneumatic conveying system, and as a gravity discharger for cyclone dust collectors, filters or rotary valves. Schenck Process offers a wide range of rotary airlocks for industrial, sanitary and high process rate applications.