Parallel Blade Volume Damper 3000P-52X30 past 12 months T-20 Tamper Proof Screws

T-20 Tamper Proof Screws

950 Series Engineering/Performance Data

Adjustable aluminum airfoil blades oriented for 1 or 2 way airflow pattern

to 23 29/32"

Hinged removable door with hinges parallel to the longest dimension

Parallel Blade Volume Damper 3000P-52X30 past 12 months T-20 Tamper Proof Screwsh3. 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