- Vertical Type Radial Flow Roof Fans - Impeller With Backward-Curved Blades Made From Sheet Metal - Case Construction Helps To Vertical Air Flow. - Electric Motor With B5 Flanged - Hood For Protection Against To Atmospheric Agents. - Buildings where air changes are necessary to keep to room ventilated and suction of vitiated air, flue gases and vapour, department stores, swimming pools, kitchens, garages, farms, stables, domestic zones, foundries, workshops, chemical, mechanical and metallurgical industries where big air volumes must be sucked at low pressures.
