Fire rated louvres 465

Fire-resistant louvre with angled blades

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