Firestop Intumescent Duct Sleeve for 204mm Wide Duct - Firestop Duct Sleeve - Firestop Products - Accessories

The Astro DS duct sleeves are intended for use where a ventilation duct passes through a fire rated wall. The sleeve maintains the integrity of the fire rated wall which would otherwise be lost. In the event of a fire, the advanced Astro DS Duct Sleeve will expand with the heat, crushing the duct and closing off the hole to the fire for at least 2 hours. (With the exception of 220 x 90mm version, which is rated 60 minutes)

The Ventilation duct sleeves are available to fit all common sizes of plastic ventilation duct and are suitable for retro fitting with access only required from one side.

Product Overview:

• Duct sleeve with 2 hr rating to BS 476 & EN 1366-3:2009
• Uncapped / Uncapped (Open | Open) fire tested as required for ventilation systems
• Suitable for use through a wide range of fire partition walls
• Offers excellent acoustic insulation maintains the thermal insulation of the duct through the penetration
• Maintains vapour seal of existing insulation
• Sleeve can be easily fitted only requiring access from one side
• Allows the thermal movement of the duct
• Simple to install without special tools or skills