A flat plate intumescent grille for doors or walls providing up to 73 minutes of fire protection. There is a choice of either a plain slot type for more ventilation or a louvered slot that reduces viewing.
They can be...
A slim block-type intumescent grille giving an excellent free ventilation area.
For ceilings, doors, walls and ventilation ducting.
Openings are be sealed off in under one minute when attacked by fire.
Can be made...
The grille can be used on partition walls and doors to prevent fire passing from one room to another when acoustic protection is also needed.
Hole size - height x width
Overall size - 20mm on each dimension