Opposed Blade Volume Damper 3000-0BD-60X32 Step Down Ceiling Diffuser 450 Series Submittal

450 Series Submittal

Available in 4" through 24" round

SD34 - Transition Box Spiral Pipe Grille (DOUBle Deflection)

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

904 - Double Deflection Adjustable Aluminum Blade Grille For a 30" x 12" Duct Opening (front blades parallel to shortest dimension)

Opposed Blade Volume Damper 3000-0BD-60X32 Step Down Ceiling Diffuser 450 Series Submittalh3. 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.