4" Round Horizontal/Vertical Fire Damper 2650-40 Specialty Products Opposed Blade Damper standard on

Opposed Blade Damper standard on 4" widths

Options * 2800 Series - Dynamic Fire Damper * Sleeve variations * 304 stainless steel construction * Fractional and odd sizes available h3

14" * Soft White Options * Field installable Bowtie Damper (BD) * TVB - Thermal Vapor Blanket * HVD - Hinge Down Face

Square or rectangular for vertical mount only

1550 Series Submittal

4" Round Horizontal/Vertical Fire Damper 2650-40 Specialty Products Opposed Blade Damper standard onh3. Standard Features * 2649 Round damper for vertical mount only. Available 4" thru 52" round. * 2650 Round spring actuated (6) damper for vertical or horizontal mount. Available 4" thru 52" round. * 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