Circular fire damper CR2

Circular fire damper available in the largest diameters (up to 630 mm) with a fire resistance up to 120 minutes. benefits Large dimensions Features Suitable for built-in installation Minimal distance allowed Suitable for rigid wall, rigid floor and light wall (metal stud gypsum plasterboard wall, gypsum blocks) Sealing with fire resistant stone wool boards allowed, also for asymmetric opening Air tightness in accordance with EN 1751: class B (class C in option ) Tested according to EN 1366-2 up to 500 Pa Operating mechanism outside the wall Maintenance-free For indoor use Operating temperature: max. 50°C