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Wall Mounted Fan Covers

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A cover for fan units mounted on walls . The cover fits around the fan unit and is affixed to the wall . The unit is fronted with an MG Grille (Product 35), fitted with intumescent strips to expand in a fire and seal the openings, thus preventing fire and smoke from spreading.

For use with Vent-Axia, Expelair and other fan types.

Size - height x width x depth

Envirograf Product 14

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Product Info

Intumescent fan cover units can be installed over Vent-Axia, Xpelair or other makes of wall or window fans, providing fire and smoke protection to escape corridors and staircase fire escapes. Available in brown or white. Other colours and sizes can be made to order.

Application Instructions

The wall-mounted unit simply fits over the fan unit, offering one hour fire  protection. This can be fixed to brick, block or concrete using raw plugs &  steel screws (32mm No8 or No10 screws or small rawl bolts).

For plasterboard or lath & plaster walls before the plasterboard is applied metal or  timber fixings can be allowed for while building, otherwise if fixing to existing  walls or ceilings use steel butterfly toggle bolts.

Fire Performance

Tested to BS476 Part 20/21/22 (1987), achieving 73 minutes integrity

Tested at VNE to European Standard EN1361-1 (2000)

Test Reference:  EN1366-3, 2009


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