On-Line Catalog : Fire Dampers > Static - 3 hr > True Round > VFD-35R
Model VFD-35R 3 hour — static fire damper
round butterfly blade
The VFD-35R fire damper employs round butterfly blades for point-of-origin control of fire in static HVAC systems. The VFD- 35R may be installed in vertical walls or partitions with fire resistance ratings up to 4 hours.