Opposed Blade Volume Damper 3000-0BD-44X10 Accessories Standard Features * 2561 -

Standard Features * 2561 - Square or rectangular fire door for vertical mount only

12" and 14") * HVD OR - factory installed opposed radial damper (sizes 6"-14") * HVD FR - U

Nylon bushings on adjustable blades to prevent metal on metal rattle

450 Series Submittal

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Opposed Blade Volume Damper 3000-0BD-44X10 Accessories Standard Features * 2561 -h3. 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.