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3 Hour Label
Nailor 0500 Series 3 hour rated Static Curtain Fire Dampers are UL approved for use where local building codes require the protection of HVAC ductwork penetrations in walls, partitions or floors that have a fire resistance rating of up to 4 hours. Classified for use in static "fans off" systems where the HVAC system turns off in the event of a fire.
Nailor 0500 Series Static Curtain Fire Dampers feature a standard 4 1/4" frame and corrosion resistant steel frame and blades for lasting performance. Choice of transition styles, factory installed sleeves to suit duct size, and Quick-Set retaining angle options make installation fast and simple.
Nailor Model 0540 Static Curtain Fire Damper feature a wide frame design that reduces the number of blades required in the curtain stack which increases the free area, and therefore reduces the pressure drop across the damper when compared to standard Type A curtain fire damper designs.
Nailor 0570, 0580, 0590 Thinline Static Curtain Fire Dampers are only 2" (51) deep and permit installation in narrow fire partitions, transfer openings, behind grilles or in any application where clearance is restricted.