. . . "n Rotary Valve Design Reduces Material Buildup Left In Valve After OperationBy ACS ValvesDesigned specifically for sanitary applications, such as food processing, pharmaceutical processing, and chemical/plastics applications, the Run-Clean Series of rotary airlock valves are designed to reduce material buildup inside the valve housing.Rotary Valve with High-capacity Rotor Design Provides 5% Increa" .