2" Vertical Mount Fire Damper 2501-20X12 Commercial 450 Series Submittal

450 Series Submittal

855 Series Engineering/Performance Data

w/ Screwdriver Operated Opposed Blade Damper

CB30 - three way

14 GA 304 SS Construction

2" Vertical Mount Fire Damper 2501-20X12 Commercial 450 Series Submittalh3. Standard Features * 2501 Square or rectangular for vertical mount only. Maximum dimension 48w, 49h. * 2502 Square or rectangular spring actuated (6) for horizontal or vertical mount. Maximum dimension 41w, 36h. * 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