Aluminum ventilation grill 465/1

rectangularinteriorcommercial

465/1 with frame 465/2 with frame and backframe • Blades in intumescent materials • Protection by grey-coloured synthetic sheath • Outer frame in satin anodised aluminium (20 microns) • Other shades on request. Purpose • At normal temperature, guarantees ventilation between two adjacent rooms. • In case of fire, cuts of f the airflow and fulfils a firebreak function. Applications • Fire-resistant constructions • Fire-resistant conduit • Fire doors • For indoor use only Function • At a temperature of 120°C, the blades swell to close the vent. • Forms a static fire valve for 60 minutes. Dimensions • Maximum dimensions: 600 x 300 mm • Special dimensions on request Technical specifications • Fire resistance: Rf 1 hour • Tests and repor ts on request (Belgian BBRI test) • Visual free area: 74% Fixing • Secure the louvre in the opening • Fill the gap bet ween the louvre and the door/wall with fire-resistant mortar. 465/1 with frame. 465/2 with frame and backframe