The grilles are made from a rectangle extrusion of upvc filled with an intumescent core. Circular grilles are contained within a rim of polished aluminium. Air Transfer grilles are suitable for areas which require to be ventilated but which must also be protected against fire – examples are fire compartment walls, fire doors etc. The grilles can also be placed in circular or rectangle ductwork where the mounting of a fire damper is not possible or desirable.
Firestem Intumescent Grilles
Firestem air transfer Grilles are suitable for areas which require to be ventilated but which must also be fire protected. These Grilles can also be placed in either circular or rectangular ductwork where the mounting of fire dampers is not possible or desirable.
- Standard grilles are 40mm deep
- Rectangle grilles range from 75mm x 75mm to maximum of 600mm x 600mm in increments of 25mm
- Circular grilles 100mm to 300mm diameter
- Non standard sizes are available on request
Tested to BS 476 Part 20.