Volume Damper Low-Leak OBD 3000-0BDLL-72X28 past 12 months 165° standard * All sizes

165° standard * All sizes utilize one main curtain stay * Galvanized finish h3

Standard Features * Modular core ceiling diffuser * Modular core has galvaneal steel blades in

Square or rectangular ceiling radiation butterfly damper

Extruded aluminum frame with signature line marks

1x2 T-Bar (10" x 22" duct)

Volume Damper Low-Leak OBD 3000-0BDLL-72X28 past 12 months 165° standard * All sizesh3. 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.