Opposed Blade Volume Damper 3000-0BD-58X38 Smoke-Fire Damper Square or rectangular ceiling radiation

Square or rectangular ceiling radiation butterfly damper

Square or rectangular for vertical mount only

AA-HVL Series Submittal

425 Series Engineering/Performance Data

Designed for return applications and as a vented access door to equipment

Opposed Blade Volume Damper 3000-0BD-58X38 Smoke-Fire Damper Square or rectangular ceiling radiationh3. 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.