1-1/2 Hour - Static Fire Damper
Round Butterfly Blade
The VFD-15R fire damper employs round butterfly blades for point-of-origin control of fire in static HVAC systems. The VFD-15R may be installed in vertical walls or partitions, or horizontally in floors or assemblies with fire resistance ratings up to 2 hours.
Frame: 22 ga. (0.85) galvanized steel.
Blades: 22 ga. (0.85) galvanized steel - round butterfly.
Fire Closure Device: Fusible link.
Fire Closure Temperature: 165oF (75oC)
Minimum Size: 6" Ø (152 Ø)
Maximum Size: 20" Ø (508 Ø)
UL 555 Fire Resistance Rating: 1-1/2 hour (vertical and horizontal)