Xtralis ICAM
Xtralis ICAM ILS-1 Product Guide
4 Pipe
Installation
A simple guide to pipe installation follows with examples of standard configurations.
Note:
Xtralis ASPIRE2 may be downloaded from
and should be used to calculate
transport times, dilution effects etc. for all installations beyond the scope of this guide.
Use 25 mm (or ¾”) Red ABS pipe with sampling point holes drilled along its length. The pipe run is
terminated with an end cap that has a hole drilled in its center.
The position of each individual sampling point should adhere to guidelines for positioning point
detectors. It is important to note that the smoke concentration from an individual sample point will be
diluted by the clean air from the other sample points and the end cap hole.
4.1 Pipe Specification
For EN54-20 compliance, the pipe should be Red ABS to EN 50086-1 (Crush 1, Impact 1, Temp 31)
with a nominal outer diameter of 25 mm (or ¾”). The sampling pipe is normally supplied in 3 m lengths
and is cut as required and joined by solvent welded sockets (permanent), or socket unions (removable).
Note:
The ILS-1 inlet port is tapered to allow a push fit of the sampling pipe. The pipe should be cut
squarely to ensure a good, airtight seal. Solvent adhesive should not be used for this joint.
4.2 Fixings
The normal fixing methods are pipe clips, saddle clamps or even tie wraps. Fixing centers are typically
1.5 m apart.
4.3 Bends
Figure 4-1: 45° bend and 90° swept bend
Bends are either 45° or 90°. For 90° bends it is very important that swept bends are used and not sharp
elbows, as sharp elbows introduce unacceptable pressure losses and significantly increase the
response times from holes beyond the bend.
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