Intumescent Letterbox
Liner Systems
Trade Name:
ASTRO ECO TELESCOPIC LETTER BOX FX 
Introduction
The purpose of this document is to give guidance to approved contractors and suppliers who are engaged in the fire stopping of service penetrations in walls and doors using the Astro Eco Telescopic Letter Box System FX. All service holes through floors and compartment walls must be fire stopped to prevent the passage of fire, smoke and hot gases. The key points for intumescent passive fire protection products are :-
- Prevent the spread of fire, smoke and hot gases through a building by containing it in the compartment of origin.
- Maintain the integrity of escape routes from a building.
- Reduce loss or damage to property from the effect of fire and smoke.
- Maintain pressure differential between compartments and ventilation channels.
The Astro Eco Telescopic Letterbox FX
The Astroflame telescopic letter box system range is specially designed to increase the safety and security of occupants against fire.
The range includes models which are fire & smoke rated for 30 minutes. Where relevant, particularly for multiple occupancy residential buildings, letterboxes have been fire tested to BS 476 PART 22 & 31.1 for 30 minutes fire & smoke rating.
Please note that the maximum tested height from the floor to the letterbox is 1050mm to stay within the tested criteria.
The letterboxes are adjustable to suit door thickness of 40mm - 65mm for 30 minute rated doors only. Fixing screws supplied
To install
1 Cut either a 235mm x 50mm aperture or 274mm x 57mm for the commercial range at your selected position on the door or solid wall
2 Insert letter plate sections through each side of the door or aperture, ensuring that they correctly engage together.
3 Secure letterbox to door or aperture using screws supplied.
4 To maintain integrity, ensure gaps between letterbox and door or aperture are sealed using intumescent sealant.
Compliance
Astro Eco Telescopic Letter Box FX is manufactured in the EU, meeting the highest quality standard in compliance with ISO EN 9001:2000 . For fire test certification contact Astroflame Fireseals technical department.
Fire Test or Assessment Reports
Tested to BS 476 PART 22 for 30 minutes fire rating
Storage and disposal
Astro Eco Telescopic Letter Box FX should be stored indoors. No shelf life is given as this product will not deteriorate in storage.For additional testing, certification or technical information please contact
ASTROFLAME FIRESEALS LTD.Issue 04/08
As part of our policy of ongoing improvements, we reserve the right to modify, alter or change product specifications without giving notice. Product illustrations are representations only. All information contained in this document is provided for guidance only, and as ASTROFLAME FIRESEALS LTD has no control over the installation methods of the products, or of the prevailing site conditions, no warranties expressed or implied are intended to be given as to the actual performance of the products mentioned or referred to, and no liability whatsoever will be accepted for any loss, damage or injury arising from the use of the information given of products mentioned or referred to herein.
The above information
to the best of our knowledge is true and accurate and based upon current
test data and is supplied for your guidance only. Customers should
satisfy themselves
to the suitability of the product in its intended use and no guarantee
is given or implied since the conditions of actual use are beyond
our control. ASTROflame (Fireseals) Ltd, disclaim any liability for
loss, damage or other expense arising from the use of information,
data or products mentioned or referred to and reserve the right to
change any details or specifications without notice.
Astroflame (Fire Seals) Ltd. Intumescent
House Unit 8, The IO Centre, Stephenson Road, Segensworth FAREHAM, ENGLAND PO15 5RU |
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tel 0800 023 2482 (01329 844500) |
fax 0800 023 2483 (01329 844600) |
intl tel +44 1329 844500 |
fax +44 1329 844600 |
email sales@astroflame.com |
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