TPT July 2007

P lastic & C omposite T ube: P roducts & M anufacture

CPE belling machines for PP and HDPE thermoforming technology

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. › Double wall pipes are available with a corrugated external wall

fi The CPE belling machine from Sica

Sica SpA – Italy Fax : +39 0544 81340

Email : smusacchi@sica-italy.it Website : www.sica-italy.com

Fibreglass: the new generation of pipeline construction

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 : info@fiberpipe.de Website : www.fiberpipe.de › Fiberpipe products are lightweight, easy to shape and to cut to size, keeping transport and installation costs low

fi Fiberpipe supplies pipes made from fibreglass

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J uly /A ugust 2007