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Pottorff > Fire - Smoke Dampers > Fire Dampers > Static 3-Hr Rated > VFD-30-A

Model VFD-30-A

3 Hour - Static Fire Damper
Curtain Style Blade

The VFD-30-A fire damper employs curtain style blades for point-of-origin control of fire in static HVAC systems. The VFD-30-A may be installed in vertical walls or partitions, or horizontally in floors or assemblies with fire resistance ratings up to 4 hours.

VFD-30-A Curtain Style Blade

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: 165oF (75oC)

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

 

 

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