Opposed Blade Volume Damper 3000-0BD-44X22 Specialty Products 945 Series Engineering/Performance Data

945 Series Engineering/Performance Data

601TFG Series Engineering/Performance Data

For damper free area chart A click here * 2663 - Out-of-Airstream fire door

" Spiral pipe diameter must be 4” larger than width of grille

Accessory to the 90 Series

Opposed Blade Volume Damper 3000-0BD-44X22 Specialty Products 945 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.