Fire Smoke Damper › › ›
The FSD-11 Fire & Smoke Dampers employs triple-V blades and not channel frame for point-of origin control of fire and smoke in static and dynamic smoke management systems. The Maximum Velocity Rating is 2000 ft/min (10.2 m/s), the Static Pressure Rating is 6 in-Wg (1.5kPa) in the duct, the Fire Resistance Rating is 3 hr, and the air leakage is Class I level. It may be used to the fire wall, dividing wall (the brick wall or the gypsum board) and the floor with the vertical mounting.
- UL 555 Ratings；Maximum Dynamic Closure Velocity 2000 fpm(10m/s)、Pressure 6.0 in. WC(1.5kPa)
- Fire Resistance Rating：3HR；Leakage Class I，Fuse Link：160℉~350℉ (71℃~177℃)
- Minimum Size：12″x8″(305mmx203mm)
- Maximum Size：36″x36″(914mmx914mm)
