Volume Damper Low-Leak OBD 3000-0BDLL-56X40 T-Bar Individually welded 14 guage diffusion

Individually welded 14 guage diffusion bars

PERFORMANCE DATA 845 Series Engineering/Performance Data

For evaporative coolers or central blower systems

Opposed Blade Damper standard on 4" widths

1/2" spacing dual angular louvers

Volume Damper Low-Leak OBD 3000-0BDLL-56X40 T-Bar Individually welded 14 guage diffusionh3. 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.