Intumescent One Hour Fire Block 146 x 223 mm

Unit of Measure Each
Height 146 mm
Width 223 mm
Thickness 40 mm
£35.63 £29.69

Product Details

Intumescent material formed into square, rectangular or circular matrix and contained within a steel frame

On exposure to heat from a fire the intumescent material swells to produce a fire resistant seal against the passage of fire, smoke and hot gases
The grilles are easily installed in vertical apertures in doors, walls and ducting
Tested to BS 476 Part 20/22
Up to 1 hour fire resistance
High free air flow in either direction
Free air space 20,800 sq mm
Easy to install
Available in a range of sizes from stock
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