FIRO125V
Air Distribution

Zehnder
Fire Collars

    Fire collars help to prevent the spread of fire where plastic ductwork penetrate fire compartment floors. They consist of a continuous pressed stainless steel flexible shell containing high performance graphite based intumescent material which reacts under the influence of heat to exert pressure on the duct as it softens to form a carbonaceous char which provides an effective insulation plug thus preventing fire passing through to the adjoining compartment. They should be used where a plastic duct penetrates a fire rated floor. For vertical ductwork, one unit should be installed to the underside of the floor.

    Benefits

    • Tested to BS EN 1366-3 or BS EN 1365-2
    • Classified according to EN 13501-2
    • CE Marked
    • Up to 4 hour fire rating
    • Can be retrofitted
    • Performance unaffected by weathering (Type X Durability)
    • Tested for use on concrete and masonry floors
    • FIRO100.SPV tested for use with metal web joists and suitable for use with Unity CV2GIP, CV2.1 and CV3

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