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450 Series Submittal
back blades parallel to longest dimension
Designed to handle high volumes of air with horizontal flow
Adjustable blades oriented for 3 or 4-way air flow pattern
½ × ½ × ½ Aluminum lattice
Volume Damper Low-Leak OBD 3000-0BDLL-46X10 Smoke-Fire Damper 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.
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