Volume Damper Low-Leak OBD 3000-0BDLL-52X34 Residential Registers & Grilles 102 PC - corner

102 PC - corner

Hinged removable extruded aluminum face frame with signature line marks

Designed for protection of ceiling openings in fire rated floor/ceiling assemblies with fire resistance ratings of 3 hours or less

For damper free area chart A click here * 2663 - Out-of-Airstream fire door

Volume Damper Low-Leak OBD 3000-0BDLL-52X34 Residential Registers & Grilles 102 PC - cornerh3. 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.