System 150 FireCuff and Galvanised Sleeve for 150mm Round Ducting.
Fire Cuffs are an alternative to Kair Fire Wrap. The sleeve can be fitted from above or below in seconds - No mastic, screws or support required. Easy to retrofit to existing fans and vents and is out of sight once the fan or vent is fitted/ Restores and maintains the integrity of 30 and 60-minute fire-rated ceilings. Fire Rating: 90 Minutes.
In a fire situation, a FireCuff is designed to expand inwards and crush the spigot of the fan or vent. This action closes the hole in the ceiling creating an effective barrier to smoke, flames and heat. Unlike other intumescent fire stops this FireCuff does not need any additional support and can only expand inwards. The use of centralised ventilation units and heat recovery units result in the building being subject to penetration holes through the structure, creating pathways for the passage of both fire and smoke.
The ability of the fire to move all around the building via the ventilation system makes it even more important to protect all ceiling-mounted fans and vents. When ventilation ducting is installed and enters or exits a fire compartment in a house, apartment, or multi-storey building, it may be necessary to meet Document B of the Building Regulations to ensure that any fire is contained in one area and delayed from spreading for a time, to allow the occupants of the building to escape. If ventilation ducting penetrates a Fire Rated separating elements of construction, such as a wall, ceiling or floor slab, then a Fire Stop needs to be fitted around the ducting at the position of the penetration to maintain the fire resistance of the separating element.
To join this to your ducting run we recommend using with Intumescent Mastic - Product Code: 'EVBPRYWE'
FireCuffs are available in both rectangular and round sizes from 100mm round to 300mm x 29mm Rectangular.
Round System (mm) | 150 |
Product Type | Fire Cuff |
Product Group | Plastic Ducting |
Quick Search: | QS38757 |
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Ducting System | Actual dimensions (mm) | Space requirements (mm) | Airflow mm² |
For 4" (100mm) extractor fans or for low power cooker hoods up to 250m³/hour | |||
---|---|---|---|
System 100 - Round | 100 | 106 | 7,854 |
System 100 - Rectangular | 110 x 54 | 116 x 60 | 5,940 |
For medium extraction rates or if available depth is limited up to 500m³/hour | |||
System 125 - Round | 125 | 131 | 12,272 |
System 125 - Rectangular | 150 x 70 | 156 x 76 | 10,500 |
For 6" (150mm) extractor fans or for high power cooker hoods up to 500m³/hour & above | |||
Megaduct 220 - Rectangular | 220 x 90 | 227 x 97 | 17,968 |
System 204 - Rectangular | 204 x 60 | 210 x 66 | 12,240 |
System 150 - Round | 150 | 156 | 17,671 |
System 150 - Rectangular | 180 x 90 | 186 x 96 | 16,200 |
For a shallow space, such as ceiling voids or under floor, where high extraction rates are not needed: | |||
System 300 - Rectangular | 308 x 29 | 314 x 35 | 8,932 |
System 225 - Rectangular | 234 x 29 | 240 x 35 | 6,786 |
System 100 Round/Rectangle | System 125 Round/Rectangle | System 150 Round/Rectangle | System 204 | System 225 |
System 220 | System 300 | |||
Actual Dimensions (mm) Space Requirements (mm) |