Volume Damper Low-Leak OBD 3000-0BDLL-52X46 Smoke-Fire Damper with 57% free area

with 57% free area

Extended sleeve ( See Model 2702)

T-Bar Modular Core Diffuser with Round Collar 18-20

904 - Double Deflection Adjustable Aluminum Blade Grille For a 48" x 30" Duct Opening (front blades parallel to shortest dimension)

14" and 16" Options * Field installable Bowtie Damper (BD) * HL OR - factory installed opposed radial damper (sizes 6"-14") * HL FR - U

Volume Damper Low-Leak OBD 3000-0BDLL-52X46 Smoke-Fire Damper with 57% free areah3. 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.