K-Tron offers Aerolock rotary valves in more than 150 models and sizes. Materials include cast iron or stainless steel housings and end plates with carbon or stainless steel rotors. Rotary valves are available in round or square inlet/outlet designs that provide 152 mm - 508 mm (6"-20") openings. Displacements range from 2.3 to 73 dm3/Rev (.08 to 2.57 ft3/Rev).