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CB20 - two way
Performance Data With Multi-Shutter Damper
Eighteen air patterns
Type 316 stainless steel
with color matching Phillips posi-drive screws * All component parts
Opposed Blade Volume Damper 3000-0BD-40X38 Specialty Products CB20 - two wayh3. 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.
