Global Industrial Global Industrial™ 48" Roof Ventilator - 37000 CFM - 7-1/2 HP - 230/460V

Global Industrial's™ series Industrial Roof Exhausters are designed for general ventilation and smoke and fume removal where lower cost and less maintenance are a priority. Key Features and Benefits Ruggedly constructed steel curb cap including spun venturi section for efficient air flow. Cast aluminum spark-resistant propellers are standard and suitable for use in hazardous locations when paired with explosion proof motor. Butterfly damper section, mill galvanized construction, with damper blades that open when fan is energized and close weathertight when unit is off. Dampers rotate in nylon bearings on a stainless steel axle. Optional Accessories Weatherproof non-fused disconnect switches. Insulated roof curbs for flat or pitched roofs. Magnetic latches to keep damper section lids down when fan is off. Replacement damper sections.