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For evaporative cooling or high-velocity exhaust applications
700MA Series Engineering/Performance Data
14" and 16" * Soft White Options * Field installable Bowtie Damper (BD) (sizes 6-14"
Nylon bushings for easy adjustment and quiet setting of blades running parallel to shortest dimension
Volume Damper Low-Leak OBD 3000-0BDLL-56X30 Accessories For evaporative cooling or high-velocityh3. 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.
