Opposed Blade Volume Damper 3000-0BD-52X30 T-Bar Standard Features * 4000 -

Standard Features * 4000 - door core grille with single frame * 4100 - door core grille with additional loose frame *

Maintains horizontal airflow pattern

212° Fusible Link

Adjustable baffle controllers to direct airflow horizontally or vertically

Opposed Blade Volume Damper 3000-0BD-52X30 T-Bar Standard Features * 4000 -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.