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Ships within 48 hours · Estimated delivery Oct 5 - Oct 10
Standard Features * 2633 - Square or rectangular out-of-airstream fire damper for vertical mount only
Free area equals more than 75% of nominal size
Dampers above 80 square inches free area will be provided with blade insulation
Extruded aluminum frame with steel roll formed blades and steel multi-shutter damper
950 Series Engineering/Performance Data
Volume Damper Low-Leak OBD 3000-0BDLL-68X50 past 12 months Standard Features * 2633 -h3. 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.
