Axial exhaust fans WF-780 and WF-830

Axial exhaust fans WF-780 and WF-830 are designed to operate in a “classic” house ventilation scheme with exhaust fans located in the side walls and air flow through the CFI roof shafts. The fan impeller belt drive provides smooth starting and “soft” operation of the engine during operation and eliminates engine failure (in the absence of overload protection) due to icing or jamming of the impeller. self-cleaning impeller with 6 stainless steel blades statically and dynamically balanced to reduce noise and vibration; central hub and V-belt pulley made of die cast aluminum; case and casing are made of high-strength galvanized sheet steel; check valve louvers are made of galvanized steel of special strength; pusher made of high-quality nylon provides easy and reliable opening and closing of blinds; silent bearing with a long service life; The 3-phase electric motor with degree of protection IP55, insulation class F, passed individual quality control, and is recommended for operation with a frequency converter.