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Lever operated Multi-Shutter Damper
accepts 6"-16" collar (collar by others)
Locking screw to hold damper in place
Single deflection radius mount spiral pipe grille with adjustable blades
Designed for protection of ceiling openings in fire rated floor/ceiling assemblies with fire resistance ratings of 3 hours or less
Opposed Blade Volume Damper 3000-0BD-54X16 Accessories Lever operated Multi-Shutter Damperh3. 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.
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