PROMASEAL ventilation grilles are made of organic, intumescent material, which under the influence of fire temperature creates foam with thermal insulation properties. This foam closes the ventilation holes, preventing the spread of fire and smoke.

• prevent smoke and fire from spreading
• resistant to aging
• high resistance to technical and diesel oils as well as weak acids and bases
• simple assembly
• maintenance free
• low weight
• prevent the passage of mice and rats

PROMASEAL fire ventilation grilles are used to ventilate the duct in cable and installation spaces, as well as to fill openings in ventilation ducts in fire partitions. Depending on the required fire resistance class of the cable duct, wall, ceiling or suspended ceiling, use a PROMASEAL ventilation grille of the appropriate thickness. Each ventilation grille must be additionally covered with a perforated masking sheet, with holes corresponding to the ventilation slots in the grille. PROMASEAL fire ventilation grilles are made of organic, intumescent material, which under the influence of fire temperature creates foam with thermal insulation properties. This foam closes the ventilation holes, preventing the spread of fire and smoke.