Fire Damper - 1-1/2 Hour - Static - Curtain Style Blade - Class B - VFD-10-B

Standard Construction

Frame: 22 ga. (0.85) galvanized steel.

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

Fire Closure Device: Fusible link.

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

Minimum Size:
Vertical Mount: 4" x 2" (102 x 51)
Horizontal Mount: 6" x 4" (152 x 102)

Maximum Size:
Single Section: Vertical: 48" x 44" (1219 x 1117)
Horizontal: 40" x 36" (1016 x 914)
Multiple Section: Vertical: 120" x 76" (3048 x 1930) or 80" x 116" (2032 x 2946)
Horizontal: 80" x 76" (2032 x 1930)

Stainless Steel:
Single Section: 40" x 36" (1016 x 914)
Multiple Section: Vertical: 80" x 36" (2032 x 914) or 40" x 76" (1016 x 1930) or 108" x 22" (2743 x 559)
Horizontal: 80" x 36" (2032 x 914) or 40" x 76" (1016 x 1930)

Ratings

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

UL HNLJ.V-5: Ventilation Duct Assemblies