Opposed Blade Volume Damper 3000-0BD-28X10 past 12 months Performance Data With Opposed Blade

Performance Data With Opposed Blade Damper

Back blades are parallel to the longest dimension

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

904 - Double Deflection Adjustable Aluminum Blade Grille For a 36" x 30" Duct Opening (front blades parallel to shortest dimension)

* UL and California State Fire Marshall approved * 2" thinline frame * Interlocking steel roll-formed blade (3) with roll-formed frames (1) * Blade lock (5) * Damper manufactured from corrosion tested galvanized mild steel (G-90) * Self locking corner (4) * 165° replaceable fusible link (2) h3

Opposed Blade Volume Damper 3000-0BD-28X10 past 12 months Performance Data With Opposed Bladeh3. 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.