Intumescent Grilles

Our small intumescent fire grilles are supplied in a huge number of sizes as noted within our main website here

These grilles are designed to normally allow air to flow freely, but are able to then provide a seal in the door, by the intumescent material swelling when heated in a fire situation. These are commonly installed within plant room doors to ensure good levels of ventilation, but to also prevent fire/smoke from spreading.

They are simple to fit into doors & walls and provide in excess of 1 hour fire protection. Each grille comprises of a moisture resistant intumescent core within a galvanised steel frame with vermin proof 6mm steel mesh fitted to both faces, grille depth is 42mm.

We supply fire grilles separatelt to the Air Transfer cover Plates.

• Fire Grilles tested to BS 476: Part 22 1987 and EN 1634: Part 2

• Comprehensive range of sizes includes circular types.

• For use in doors & solid block walls.

• Suitable for mounting up to 1,000mm (1m) from floor level.

 • In excess of 30 or 60 minutes fire rating.

• Vermin proof wire mesh 80% free area.

All square and rectangular grilles are available to suit 30 minute or 60 minute fire rated applications. Maximum single grille size is 600 x 600 mm or equivalent area. Circular grilles are available in 100, 125, 150, 200, 225, 250 and 300mm diameter sizes and are 60 minute fire rated.