Parallel Blade Volume Damper 3000P-54X44 past 12 months For damper free area chart

For damper free area chart B click here * 2565 - Round fire door for vertical mount only

Nylon bushings on adjustable blades to prevent metal on metal rattle

sizes T-20 Tamper Proof Screws SUBMITTAL 903 Series Submittal PERFORMANCE DATA 903 Series Engineering/Performance Data REVIT FILES Surface Mount Aluminum Supply Diffuser Double Deflection front Long with Damper Surface Mount Aluminum Supply Diffuser Double Deflection front Long

14 gauge steel construction

inner dimension and outside dimension available * Available in continuous lengths with butt joints * Tamper proof screws * Standard Color

Parallel Blade Volume Damper 3000P-54X44 past 12 months For damper free area charth3. 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