AirFlo-NV8 Upblast Roof Exhauster 24 inch 7090 CFM Belt Drive NV824-D-1-T

Designed for general ventilation in production or warehouse areas where efficient, quiet air flow is required.

FEATURES
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 weather tight 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.

CURB DIMENSIONS
O.D. = 37.5"sq.
I.D. = 34.5"sq.
MIN. ROOF HOLE SIZE = 34"sq.

ROOF CURB NOTE
1. Standard Curb Base for roof Ventilator: Insulated, 8" High with Wood Nailer
2. NOT for Installation on Corrugated roofing or Standing Seam Roofs