Opposed Blade Volume Damper 3000-0BD-48X12 Accessories 904 - Double Deflection Adjustable

904 - Double Deflection Adjustable Aluminum Blade Grille For a 24" x 24" Duct Opening (front blades parallel to shortest dimension)

Powder coat finish

055 T6 extruded aluminum frame * 90% free area * Countersunk mounting holes for flush appearance with color matching Phillips posi-drive screws * Soft White Options * 600 O - opposed blade damper * No Labor Collar - Square to round (square sizes only) * 600 T - T-Bar mount * 1/2" x 1/2" x 1" Lattice or 1" x 1" x 1" Lattice * Fractional sizes

950 Series Engineering/Performance Data

Options * 2800 Series - Dynamic Fire Damper * Sleeve variations * 304 stainless steel construction * Fractional and odd sizes available h3

Opposed Blade Volume Damper 3000-0BD-48X12 Accessories 904 - Double Deflection Adjustableh3. Standard Features * Opposed blade operation for precise volume control * 16 gauge galvanized channel frame * Blades are vee stiffened 16 gauge galvanized for strength and stability * Blades pivot on non metallic celcon bushings * 1 2" square zinc plated steel pivot pins * 1 2" square zinc plated steel adjustable operating shaft extending up to 4" beyond the air control frame * Single blades on dampers with a height of 12" or less * Mill finish h3.