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* UL and California State Fire Marshall approved * 4-1/4" standard frame style * 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
Fractional
Hinged removable face with hinges parallel to longest side
BD - field installable Bowtie Damper (available on even sizes 6"-14")
Standard Features * Individually adjustable curved blade T-Bar diffuser * Core is constructed of
Parallel Blade Volume Damper 3000P-36X32 Step Down Ceiling Diffuser * UL and California Stateh3. 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
