Vee Blade

Nailor D1250 Series Dynamic Multi-Blade Fire Dampers feature a traditional vee blade design and is suited to the majority of low velocity/pressure commercial applications. 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 or assemblies with fire resistance ratings up to 2 hours.