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91 Series Submittal
UL listed and tested in accordance with UL Standard 555
* UL and California State Fire Marshall approved * 4-1/4" standard frame style * Maximum dimension 60w
* 2550 - Round Spring actuated (6) damper for vertical or horizontal mount
Louvers designed with rolled rib for maximum strength and rigidity
Opposed Blade Volume Damper 3000-0BD-66X60 T-Bar 91 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.
