TPT July 2007

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Plastic & C omposite Tube: Products & Manufacture
94 July /August 2007
In recent years, plastic pipes for sewage
operations have undergone significant
developments in materials, geometric
configuration of the pipe wall, and joining
systems. In terms of material, polypropylene
ensures optimal chemical and mechanical
performance.
A noteworthy development in the pipe wall’s
geometrical configuration, double wall pipes
are available with a corrugated external
wall. Many joining systems are available,
including collars, socket with ring seal seat,
and smooth socket with seal positioned in a
pipe wall groove.
Sica have developed its range of CPE
belling machines to incorporate the best
thermoforming technology for PP and
HDPE. The new model processes pipes
with an external diameter of up to 800mm,
and can achieve structured wall pipes
with a nominal internal diameter of up to
600mm.
The machine forms the socket directly on
the corrugated wall, with both technical
and economic advantages. The socket is
as rigid as the pipe wall, while socketed
pipes of different lengths can be produced
simultaneously.
The production process is simpler and
faster because the pipe has no wall
discontinuities – thereby eliminating phases
of deceleration and thickening in the
extrusion process and wall formation. Using
the machine, pipe cutting does not generate
scrap or chips, with the additional benefit of
material savings as the socket forming zone
does not require thickening.
The belling machine processes pipes
with lengths from 1-6m and on request,
up to 12m. It works in an extrusion line or
offline to produce pipes of different lengths
socketed at both ends.
The incorporated automation facilitates the
machine configuration on pipe diameter
change, while an electric hoist can also be
installed to assist with installation of belling
tools.
Sica SpA – Italy
Fax : +39 0544 81340
Email:
Website:
Fiberpipe GmbH, Germany, is the manufacturer of fibreglass pipes
that are flexible to install and easy to handle. They are constructed
from robust material and meet specifications for resistance to
chemicals, even at high pressure.
Fiberpipe pipes and fittings are ISO-dimensioned for compatibility
with all pipe systems, with made-to-measure special components.
The company not only supplies all materials, but also carries out
installation and provides full engineering and technical support.
Fiberpipe was established in 2003, and found rapid success as an
increasing number of businesses have discovered the long-term
advantages of fibreglass. In the last 12 months the company’s
turnover has increased by 40 per cent. Fiberpipe products are
manufactured and supplied from locations including USA and
Turkey.
Fiberpipe GFK Vertriebsgesellschaft mbH – Germany
Fax: +49 2402 865989
Email:
Website:
fi The CPE belling machine from Sica
› Double wall pipes are available with a corrugated
external wall
CPE belling machines for PP and HDPE
thermoforming technology
Fibreglass: the new generation of pipeline construction
fi Fiberpipe supplies pipes made from fibreglass
› Fiberpipe products are lightweight, easy to shape and to cut to size, keeping
transport and installation costs low