Vertical discharge roof fans are used as exhaust fans in ventilation systems. The motorized propeller is protected by a lattice grille, which provides protection against external foreign objects that may cause damage to the propeller. Roof aspirator is not suitable for dirty air, aggressive and explosive gases. The impeller with backward curved blades is made of galvanized steel.
Motor: External rotor, internal motor protection, thermal contact, maintenance-free roller bearings are used.
Case: Made of galvanized steel.