Fire Damper - 3 Hour - Static- Curtain Style Blade - Class A - VFD-30-A

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:
Vertical Mount: 4" x 4" (102 x 102)
Horizontal Mount: 6" x 10" (152 x 2542)

Maximum Size:
Single Section:
Vertical: 36" x 36" (915 x 915)
Horizontal: 38" x 36" (965 x 915)
Multiple Section:
Vertical: 108" x 24" (3048 x 1930)
Horizontal: 76" x 96" (1931 x 2438)

Stainless Steel:
Single Section:
Vertical: 36" x 24" (914 x 610)
Multiple Section:
Vertical: 108" x 24" (2743 x 610)

Ratings

UL 555 Fire Resistance Rating: 3 hour (vertical and horizontal)

UL HNLJ.V-5: Ventilation Duct Assemblies