Opposed Blade Volume Damper 3000-0BD-58X32 Specialty Products For damper free area chart

For damper free area chart A click here * 2663 - Out-of-Airstream fire door

Standard Features * Galvaneal steel face designed for high air volume delivery * 360 air diffusion * No Labor Collar * Seismic support hangers * Available sizes: 6"

Available 4" thru 52" round

Blades run parallel to longest dimension

Standard Features * Converts T-bar products to surface mount * Sizes available: 1x2

Opposed Blade Volume Damper 3000-0BD-58X32 Specialty Products For damper free area charth3. 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.