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Static
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 1200(-3) Series Static Mulit-Blade Fire Dampers offer premium performance and a low pressure drop well suited to the majority of commercial applications. Unique, inter-locking double skin airfoil blade design eliminates combustible seals and provides flame protection under fire conditions at temperatures up to 2000 °F (1093 °C).