Key Features and Benefits
- Ruggedly constructed steel curb cap including spun venturi section for efficient air flow.
- Heavy gauge fabricated steel propellers are standard.
- Cast aluminum spark-resistant propellers available for hazardous locations.
- 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.
- Belt driven for quiet operation.
- Industrial grade cast iron pillow block ball bearings with locking collars.
Optional Accessories
- Weatherproof non-fused disconnect switches.
- Insulated roof curbs for flat or pitched roofs.