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Multi-Blade Fire Dampers
Nailor (D)1200 and D1250 Series UL 555 rated Multi-Blade Fire Dampers are available with a multitude of options to suit most commercial applications. Galvanized steel construction standard, Type 304 stainless steel, and severe environment Type 316 stainless steel construction optional. Fire resistance ratings of either 1 ½ or 3 hours.
Nailor D1200(-3), D1250, and 1290F Series Dynamic Multi-Blade and Round Fire Dampers are classified for use in dynamic systems where the HVAC system remains operative in the event of a fire and may be installed in vertical walls or partitions, or horizontally in floors or assemblies.
Nailor 1200 and 1200-3 Series Static Multi-Blade Fire Dampers are classified for use in static "fans off" systems where the HVAC system shuts off in the event of a fire, and may be installed in vertical walls or partitions, or horizontally in floors or assemblies. 1 ½ or 3 hour models available.
Nailor 1201-MDG and 1201-MDS Series Low Leakage Multi-Blade Fire Dampers are designed for use in marine applications which require USCG approval for Class A-60 divisions.