Opposed Blade Volume Damper 3000-0BD-68X24 Smoke-Fire Damper Standard Features * 1/2" x

Standard Features * 1/2" x 1/2" x 1/2" aluminum lattice face *

Installation Ring only

Maintains horizontal airflow pattern

1/2" spacing dual angular louvers

To adjust diffuser

Opposed Blade Volume Damper 3000-0BD-68X24 Smoke-Fire Damper Standard Features * 1/2" xh3. 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.