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                                        Curtain Style Blade
                                    
The VFD-30-C fire damper employs curtain style blades for point-of-origin control of fire in static HVAC systems. The VFD-30-C may be installed in vertical walls or partitions, or horizontally in floors or assemblies with fire resistance ratings up to 4 hours.
 
                                                                    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 2" (102 x 51)
Horizontal Mount: 4" x 7" (102 x 178)
Maximum Size: 
Single Section: 
Vertical: 34" x 32" (864 x 813)
Horizontal: 36" x 32" (915 x 813)
Multiple Section:
Vertical: 106" x 20" (3048 x 1930) 
Horizontal: 74" x 91" (1880 x 2311)
Stainless Steel: 
Single Section: 
Vertical: 34" x 20" (864 x 508)
Multiple Section: 
Vertical: 106" x 20" (2692 x 508) 
UL 555 Fire Resistance Rating: 3 hour (vertical and horizontal)
UL HNLJ.V-5: Ventilation Duct Assemblies
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