Description
Slotted Intumescent Grille
Intumescent ventilation grilles consisting of two metal plates that hold intumescent material fitted on either side of a door or wall. The grille has ventilation slots to allow improved airflow quality. The intumescent material placed within the grille will expand in under a minute to seal the openings, preventing fire and smoke from spreading. See also MGL intumescent grilles. Available in a wide range of different sizes and finishes.
The grilles are suitable for operational theatres, sterile areas, and food preparation spaces, providing effective passive fire protection. An option to include a thermal breaker is available. Once the grille reaches 70oC the link breaks and the inner intumescent plate drops, sealing the grille. Fires will become compartmentalized to prevent the spread of smoke and flames, preserving building structures and allowing safe time for occupants to evacuate.
Tested to BS476 Parts 20 and 22 (1987), achieving 66 minutes on one side only; and BS476 Part 22 (1987) achieving integrity of 73 minutes. Also tested to EN1363-1 (2000).
Specially designed passive fire range to meet Document B of Building Regulations, and also tested to European Standards. For more information, browse our full range of ventilation products online.