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Airfoil Blade
Nailor D1200(-3) Series Dynamic Multi-Blade Fire Dampers feature an airfoil blade design that, coupled with the elimination of top and bottom blade sills, provide a low pressure drop design. Qualified to 4000 fpm (20 m/s) and 4 in. w.g. (1 kPa) and may be installed in vertical walls or partitions, or horizontally in floors. 1 ½ hour or 3 hour label models available.
Nailor D1200(-3) Series Dynamic Multi-Blade Fire Dampers feature an airfoil blade design that, coupled with the elimination of top and bottom blade, provide a low pressure drop design. Qualified to 4000 fpm (20 m/s) and 4 in. w.g. (1 kPa) and may be installed in vertical walls or partitions, or horizontally in floors. 1 ½ hour or 3 hour label models available.
Nailor D1200SS(-3) Series Stainless Steel Dynamic Multi-Blade Fire Dampers feature an airfoil blade design with low pressure drop performance. Type 304 stainless steel construction standard, and severe environment Type 316 stainless steel construction optional. May be installed in vertical walls or partitions, 1 ½ hour or 3 hour label models available.
Nailor D1201-OW and D1201-DOW Series Out of Wall (or Floor) Dynamic Multi-Blade Fire Dampers offers 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).