On-Line Catalog : Fire Dampers > Dynamic - 3 hr > Curtain Style > VFD-30D-A
Model VFD-30D-A 3 hour • dynamic rated — fire damper curtain style blade
Application
The VFD-30D-A fire damper employs curtain style blades for point-of-origin control of fire in static and dynamic HVAC systems. The VFD-30D-A 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 4 hours.Documents
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