Parallel Blade Volume Damper 3000P-66X34 Step Down Ceiling Diffuser enclosed in valve to assure

enclosed in valve to assure trouble-free operation

Recessed screwdriver operated opposed blade damper to control air volume for positive balance of system

916 Series Engineering/Performance Data

12" and 14") * HVD OR - factory installed opposed radial damper (sizes 6"-14") * HVD FR - U

Parallel Blade Volume Damper 3000P-66X34 Step Down Ceiling Diffuser enclosed in valve to assureh3. Standard Features * 16 gauge galvanized channel frame * Parallel blades are cee 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. Options * 3000 PLL Low Leak Air Control