The FirePro Metal Intumescent Round Fire Sleeve is a high-performance firestopping solution for circular plastic ducting that penetrates plasterboard stud partitions or masonry walls.
Manufactured with a graphite-based intumescent liner inside a galvanised steel sleeve, the product reacts to heat by expanding and sealing the duct opening. This helps maintain fire compartment integrity and restricts the spread of fire and smoke. Fully tested to BS EN 1366-3:2009, including uncapped/uncapped (U/U) duct configurations, the sleeve achieves up to 2+ hours of fire resistance when installed correctly.
The sleeve is quick to install, requires no mechanical fixings, and is suitable for both new-build and retrofit applications. It is available for the most common circular duct sizes: 110mm, 125mm, 150mm, and 160mm, with lengths from 110mm to 220mm.
Mastic Inclusion: In accordance with the product’s efficacy insurance warranty, each purchase includes Firesure Fire & Acoustic Rated Mastic at a rate of 1 tube per 12 sleeves. This is factored into the pricing for both single sleeves and packs of 12.
Key Features
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Up to 2+ hours fire protection – BS EN 1366-3:2009 tested
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Designed for circular ducting – uncapped (U/U) tested
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Duct sizes supported: 110mm, 125mm, 150mm, 160mm
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For use in plasterboard stud and masonry wall penetrations
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Graphite-based intumescent inside galvanised steel sleeve
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No mechanical fixings – fast, clean installation
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Retrofit-compatible for upgrades or remedial work
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Available in sleeve lengths from 110mm to 220mm
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Supplied with mastic to meet insurance compliance requirements
Ideal Applications
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Ventilation ducting in commercial or residential builds
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Passive fire protection upgrades in existing structures
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Wall penetrations in new-build partition systems