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order to obtain effective Fire Prevention it is necessary to consider the actual
penetrations through fire compartment walls and floors. Synthetic pipes should
be especially considered as they are a transporter of fire and smoke from one
compartment to another. |
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Fix
using 6mm metal expanding bolts or 50mm long tapcons.
Can be used in plasterboard walls.
Ask our technical department for fixing instructions. |
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PVC
and PE starts to soften at about 115°C, consequently in a short period of
time an opening will develop in a fire compartment wall or floor allowing flames
and smoke to breach it.
The Firestem™ Intumescent Collar counteracts this and at around 140°C
the Firestem™ Flex starts to react under the influence of heat, expanding
to seal off the pipe thereby stopping the spread of smoke and fire. |
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Technical
Information
Firestem™ Flex is a unique chemical formula based on expanded graphite
(non-toxic) and is maintenance free. Impervious to moisture, acids and chemicals.
Working temperatures 30°C to +80°C without damage. Not sensitive to UV
light. |
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Performance
Tested to BS476 Part 20. Should be fitted to the fire risk side, generally both
sides of a wall or underside of a floor. |
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Certification
Like all other Firestem™ products the Firestem™ Intumescent
Collars are tested by Warrington Fire Research Consultants to BS 476 part 20 and
prEN 1366/3:1993. |
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The Firestem™ Pipe Collar
consists of a one part system, 1.5mm thick and closed by use of a toggle clip.
The shells are lined with a new generation intumescent impervious to water.
One side of the collar has 4 mounting lugs with four holes of 7mm diameter for
fixing by means of metal expanding (or through) bolts 6mm diameter.
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Advantages
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Fire tested up to 4 hours |
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Easy
to install |
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Lightweight |
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Water
resistant |
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Economical |
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Sizes
range from 50mm up to 250mm diameter |
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