Fire ventilation grilles

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