Fire Damper - 1-1/2 Hour - Dynamic Rated - Thinline Curtain Style Blade - Class B - VFD-10D-TLB

Standard Construction

Frame: 22 ga. (0.85) galvanized steel.

Blades: 24 ga. (0.7) galvanized steel - curtain style.

Fire Closure Device: Fusible link.

Fire Closure Temperature: 165^oF (75^oC)

Minimum Size: 6" x 4" (152 x 102)

Maximum Size:
Single Section: 36" x 40" (914 x 1016)
Multiple Section: 72" x 29" (1829 x 737) or 36" x 65" (914 x 1651)

Ratings

UL 555 Fire Resistance Rating: 1-1/2 hour (vertical)

UL HNLJ.V-5: Ventilation Duct Assemblies

Maximum Dynamic Closure Velocity:
4,000 fpm (20.3 m/s)
2,000 fpm (10.2 m/s) Multiple Sections

Maximum UL555S Rated Pressure: 4 in. wg. (1.0 kPa)