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The processed zone is to be protected against dirt, soap, grease, subsequently
flowing water and unfavourable effects of weather (e.g. moisture, frost formation).
Do not touch the fusion zone again after scraping.
WARNING!
FRIALEN
®
Safety Fittings with integrated heating coils guarantee optimal
heat transfer through their exposed heating coils and may thus not be
scraped at the inside of the fitting.
4.3
External and internal
chamfering of the cutting
edge (See Figure 5)
For this purpose, the manual scraper
is a suitable tool. A good chamfer on
the outside diameter of the face of
the pipe will make it easier to fit the
coupler.
Remove swarves from
within the pipe.
4.4
Restoration of irregular /
oval pipes
Pipes, in particular bundled coils and
drums, may loose their roundness
during storage. If the pipe out-of-
roundness in the fusion zone area
exceeds 1.5% of d (outer diameter)
or is > 3.0 mm, these pipes must
be rounded in the fusion zone
area. Please use rounding clamps
for this purpose which are installed
at the end of the fusion zone (See
Figure 6).
WARNING!
For the installation of of fittings from d 710 rounding clamps for the
pipes need to be applied in all circumstances.
With UB couplers d 280 to d 450 the pipe may be adjusted to the coupler
following evaluation of the annular gap (> 1 mm) by using the pre-heating
barcode.
Figure 5
Figure 6
FL_2104_8_GB_II_08.p65
25.03.2008, 9:48 Uhr
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Summary of Contents for FRIALEN
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