Astroflame Passive Fire Protection Products

Trade Name: Astro FT Sleeve

Intumescent Fire Trunking Sleeve

Fire Trunking Sleeve with a 2 Hour fire rating to BS 476.

Suitable for use through a wide range of fire partition walls and floors.

Offers excellent acoustic insulation.

Maintains the thermal insulation of the trunking through the penetration.

Cost effective solution.

Fitting only requires access from one side.

Must protrude by a minimum of 10mm from the wall.


Astro FT Sleeve at Astroflame

View a range of styles

>> See more : Additional product images

>> Call us to order: 01329 844 500

>> Email us to order:


The Astroflame range of Astro FT Fire Trunking Sleeves are intended for use where plastic trunking passes through a fire rated wall. The sleeve reinstates the fire rating of the wall which would otherwise be lost.

In the event of a fire, the Astro FT Trunk Sleeve expands with the heat, crushing the trunking and closing off the hole to the fire for at least 2 hours.

The FT Trunk Sleeves are available to fit common sizes of plastic trunking and are suitable for retro fitting with access only required from one side. They are suitable for use with plastic trunking. 25mm thick wall.

Product Availability

Astro DS Low Profile Duct sleeves are available in the following dimensions (nominal sizes). Packed - Individually.

Product Code

Product Description

Trunking Size

Sleeve Length


Astro FT Sleeve 50




Astro FT Sleeve 100



To Order & Specify

Please contact us and quote the following - Quantity / Product Code / Product Description / Size
Typical example:- 10 / AFFTS100 / Astro FT Sleeve 100 / 50x50x150mm

>> Tel: 01329 844 500 or >> Email:

Test and Assessment Reports

Astroflame Fire Trunking Sleeves have undergone and passed testing in line with BS476 Part 22:1987 at Chiltern International Fire


For further information on installation requirements please contact the technical team on: tel 01329 844 500
or email

Health and Safety

The product does not present any known health hazards during or after installation. Normal good industrial and personal hygiene practices should be observed. For further information on health and safety requirements please contact the technical team on: tel 01329 844 500 or email

Web Page


Astroflame (Fire Seals) Ltd. Intumescent House
Unit 8, The IO Centre, Stephenson Road, Segensworth
tel 0800 023 2482
(01329 844500)
fax 0800 023 2483
(01329 844600)
tel +44 1329 844500
fax +44 1329 844600