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Why composites ?


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With steel boiler making, the manufacturer receives ready-to-use raw materials and then proceeds to manufacture the product. This is not the case for CITP: our first task consists in preparing our raw material.

To begin with, as soon as our glasses and resins enter, we take samples to check their characteristics.

In a further variation from steel boiler making, it is essential that temperature and hydrometry variations in the workshop remain within a very small range all year long. This is important to make sure that the raw material is prepared with excellent mechanical characteristics, making your devices, piping and ducting long-lasting and reliable.

Our production sites are fitted out with cutting-edge technology to enable us to adjust our catalytic systems with a high degree of accuracy.

* In the case of polyester, the preparation work consists essentially in filament winding techniques, to create the shells of our devices.
Projection techniques are used to manufacture tank domes, bottoms, reservoir covers, as well as rectangular ducting or any other non-cylindrical forms.
Contact molding is used to manufacture small parts and equipment in accordance with the UIC book, and any assemblies requiring a high degree of attention.

In the case of machines involving shell windings, an operator will always be present for debubblizing operations.
These debubblizing operations are necessary to guarantee the quality of our anti-corrosion as well as our mechanical structures.

The constant tension of the glass bundles put down on the mandrel rotating at a regular speed (to create the shell) means that we are in a position to guarantee a constant glass content in accordance with our method sheets.

In the case of thermoplastic devices, the device liner (corrosion resistance) is put into place on the mandrel to be welded. All these welds are covered with a carbon braid enabling dielectric comb checks to be done.

Thermoplastics enable us to considerably increase the resistance of our devices to chemical aggressions or abrasion: hooping is used to ensure mechanical resistance. Hooping consists in preparing the polyester to give the device the required mechanical characteristics. [Link to the above paragraph located between the two stars].

This product range is reliable and efficient, and has a long record of customer satisfaction, with some using this type of equipment for over 20 years now.

CITP has trained specialist knowledge in such devices, already installed for well-known customers such as Arkema, Rhodia and the EDF.

Indeed, we are proud to say that CITP has been developing specialist skills in this manufacturing process in our own workshops since 1975.

The CITP Chaponnay plant (near Lyons) has a special thermoplastics forming workshop (Pehd, PPh, PVC, PVC-C, PVDF, ECTFE, FEP) and a joinery workshop to design tools for special parts.

Naturally, our specialist knowledge in solid thermoplastics and dual-laminate thermoplastics also applies to our piping and ducting, clearly defined in our standards.

A compatibility study is prepared for each project to determine whether you would be better off using thermoplastics or polyester to achieve best results against abrasion and chemical aggressions.

This study is essential; it makes sure that you get the product you really need.

The mechanical structure is obtained by the calculation; this will define factors such as the type of resin, thicknesses, deformation, glass content, resin content, and so on.
This is another essential step in obtaining a perfect product.

FRP polyester (aka GRE polyester).

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