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Blades parallel to shortest dimension
Collar sizes available in 6”–10”
Lever operated Opposed Blade Damper
Hinged removable door with hinges parallel to the longest dimension
Designed to handle high volumes of air with horizontal flow
Volume Damper Low-Leak OBD 3000-0BDLL-22X14 past 12 months Blades parallel to shortest dimensionh3. 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.
