Intumescent Block Grille

Intumescent block grilles provide 90% free ventilation space which seals completely in the event of a fire. This product contains non-clogging technology and consists of metal plats clad in intumescent and wrapped in foil with a wire-mesh front face.

The intumescent material will expand to seal the grille in the event of a fire. Preventing the spread of fire and smoke in ducting and ventilation ducting, doors and walls.

This product underwent a fire resistance test employing general procedures and criteria of BS476 Part 22 (1987). Achieved integrity of 240 minutes. Also tested under EN1366-3:2005 – 127 minutes and EN1363-1:2000, EN13501-2:2004 – 120 minutes.

• Dependent on the shape of the ventilation gap, block grilles are tailored to fit all shapes, including round, oblong and square.
• Where needed, the edges of grilles can be sealed with mastic and adhesives.
• Designed in sizes between 15mm to 38mm depth, with special orders made where required.
• 90% free ventilation space, suitable for installation in ventilation ducting.
• Non-clogging.
• Suitable for installation in ducting/ventilation ducting, doors and walls.
• For use in fire barrier walls, doors and duct openings. 
• Provides an effective fire seal for up to 4 hours.
• Circular version can be made to order if required.

1. The intumescent block grille simply gets pushed into place.
2. Mastic or silicone sealant can be used around the edges if required.
   

Please note: these grilles can be made with lugs to screw into place for ceiling applications if required. Any type of grille front can be used or Envirograf front plates can be supplied. 

REF

mm x
mm       100 125 150 175 200 225 250 275 300
100 
125 
150 
175 
200 
225 
250
275 
300 

Technical Data Sheets

TD036-10-2018

Application Data Sheets

AP036-10-2018

Health & Safety Data Sheets

HS036-10-2018

All of our 'in stock' product orders will be shipped same day, as long as the order has been processed before 3pm - this is simply to be in a position to catch the courier pickups.

Some of couriers are explicit in their non-liquid deliveries so if you have ordered a mixture of ambient and liquid products your order has to be split across two couriers. These are lead by courier company policies, however the courier selection was done of price and so you can be safe in the knowledge that you will be getting the most competitive delivery prices around. 

We deliver across the Island of Ireland and aim for 48/72hrs deliveries on all our orders. If you order a product that is 'out of stock' we will get them shipped by our supplier, Envirograf UK over night for our next days deliveries.