Opposed Blade Volume Damper 3000-0BD-44X18 Smoke-Fire Damper Standard Features * Use in

Standard Features * Use in applications for installing round without damper * Steel galvaneal construction

2x4 T-Bar (22" x 46" duct)

inner dimension and outside dimension available * Available in continuous lengths with butt joints * Tamper proof screws * Standard Color

Concealed mounting holes with mounting screws

3% maximum leakage with a pressure differential 3" W

Opposed Blade Volume Damper 3000-0BD-44X18 Smoke-Fire Damper Standard Features * Use inh3. 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.