Galvanized steel housing features powder-coat finish
External rotor motor with totally enclosed design allows fans to operate in high moisture, lint and dust laden air
Permanent split capacitor motors feature automatic reset thermal overload protection and sealed ball bearings for long life and maintenance-free operation
All motors and impellers are designed as one integral unit, allowing for excellent motor heat dissipation, even at low RPM
Permanently lubricated sealed ball bearings
The RVF models are exhaust-air fans for installation on external walls. The unit consists of an impeller with backward-curved blades and a casing in galvanized sheet steel with a white powder-paint coating. When installed on an exterior wall, all ambient noise is kept outside.