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Single deflection radius mount spiral pipe grille with adjustable blades
Nylon bushings for easy adjustment and quiet setting of blades running parallel to shortest dimension
Access door with 1-3/8" deep steel roll formed frame
AA-HVL Series Engineering/Performance Data
Available blade centers at 1/2"
Opposed Blade Volume Damper 3000-0BD-42X32 Specialty Products Single deflection radius mount spiralh3. 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.
US$ 660.00
US$ 32.10
