Opposed Blade Volume Damper 3000-0BD-22X18 Residential Registers & Grilles 450 Series Engineering/Performance Data

450 Series Engineering/Performance Data

Heavy Duty Construction (1 1/2" frame depth utilized)

700 CB30 - three way

Standard Features Double deflection surface mount grille with adjustable airfoil blades Front blades parallel to longest dimension

Opposed Blade Volume Damper 3000-0BD-22X18 Residential Registers & Grilles 450 Series Engineering/Performance Datah3. 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.