Parallel Blade Volume Damper 3000P-52X52 past 12 months 3 cone steel diffuser with

3 cone steel diffuser with hinged core for easy duct access

HVL Series Engineering/Performance Data

Square or rectangular ceiling radiation butterfly damper

Ceramic fiber blade insulation with fiberglass cover*

Parallel Blade Volume Damper 3000P-52X52 past 12 months 3 cone steel diffuser withh3. 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