Size from 140 to 355mm • Capacities to 8300 m3/h • Static pressure up to 1450 Pa • Suitable for many applications where the extraction of a corrosive atmosphere. provided with a robust sheet metal mounting frame to support the motor and facilitate installation. Radial centrifugal impellers are manufactured from tough polypropylene. Motors use are asynchronous induction motors with squirrel cage rotor in die cast aluminum.