• Construction:

    • fire ventilation grilles, class EI90
    • fire ventilation dampers, class EI90

    Design:

    • in wall (ventilation grille)
    • in leaf (ventilation grille, damper)

    Useful area:

    • grille up to 60 % net
    • damper up to 80 % net

    Installation:

    • galvanised steel sheet
    • expanded materials
    • meltable fuse
    • protective net

    Finishing:

    • galvanised, or
    • plasticised in RAL colours

    Thickness: 125 mm in door leaf