£69.49 (incl VAT)
Intumescent grille with a memory spring for walls, ceilings, fire doors and ventilation inlets.
This product underwent a fire resistance test employing the general procedures and criteria of: BS476 Part 20 (1987), achieving an integrity of 66 minutes; and BS476 Part 22 (1987), achieving an integrity of 73 minutes.
Envirograf Product 34NSPRING
£406.39 (incl VAT)
About Memory Spring Set Intumescent Fire and Smoke Grilles
Intumescent grille with a memory spring for walls, ceilings, fire doors and ventilation inlets.
Regulations often require fire and smoke protection grilles for openings in fire walls. The Envirograf TJ Grille fulfils this requirement offering full fire and smoke protection. This type closes when the fire gets near the grille. At 50 C to 65 C the grille will close, but the spring returns to the open position once the fire is over.
Review this Product