On-Line Catalog : Fire Dampers > Dynamic - 1½ hr > Curtain Style > VFD-10D-IMB
Model VFD-10D-IMB 1-½ hour • dynamic rated — fire damper
integral mounting angle — curtain style blade
The VFD-10D-IMB fire damper employs out of the air stream curtain style blades and a factory installed integral mounting angle for point-of-origin control of fire in static and dynamic HVAC systems. The integral mounting angle is designed and approved to be fastened directly to the fire separation and may be installed under the drywall in metal stud construction. The VFD-10D-IMB is qualified to 4,000 ft/min (20.4 m/s) and 4 in.wg. (1.0 kPa) and may be installed in vertical walls or partitions with fire resistance ratings up to 2 hours.