The UBV upblast roof ventilator provides aerodynamically efficient performance with airflow capacities to 61,000 cfm. The ventilator is constructed with a heavy-duty welded steel base, galvanized butterfly exhaust damper section, and a spark-resistant cast aluminum airfoil axial impeller. The belt drive upblast roof ventilator has its motor located outside the airstream. It is ideal for hot or contaminated airstreams and is suitable for general ventilation applications or to exhaust heat or smoke fumes, states the manufacturer. Features include weatherproof closure for vertical air discharge, TEFC industrial-duty motor, and factory-set adjustable pitch blades. Damper rods turn in nylon bearings and require no lubrication. The ventilator has rugged galvanized damper section with butterfly damper blades and extended lube lines.
Continental Fan Manufacturing Inc., 203 Eggert Rd., Buffalo, NY 14215; 716-842-0670 or 800-779-4021; 716-842-0611 (fax); www.continentalfan.com