Technical guide Tecalemit Flexibles®

The range

The range of TECALEMIT FLEXIBLES® technical tubes are divided into 8 families. First the monocomponent tubes :

- MANURIL® polyamide tubes
- MANULAN® polyurethane tubes
- PTFE TECAFLON® PTFE tubes
- PVDF MANULEF® PVDF tubes
- MANULENE® low-density polyethylene tubes
The range is enriched by the following tubes of composite structure :
- MANUCLAIR® PVC tubes (pvc tube/textile braid/pvc cover)
- MANUFLEX® tubes (nitrile rubber tube/galvanised steel braid/pvc cover) - MALUFORM® (aluminium tube/polyethylene
cover) Production of tubes :
Mono-component tubes are produced by extrusion, whose parameters vary according to material and diameters, but which practically all have the following stages, wiith the exception of ptfe which is produced by vertical ram extrusion.
First the granules of these thermoplastic materials are brought to their melting temperature, homogenised and compressed by the
helical screw of the extruder.
Passing through the extrusion head, the liquid plastic material is projected towards a cooled calibrated die, under vacuum,
accompanied by a film of water. The tube is then cooled, and its wall thickness controlled by ultra-sound and its outer diameter
controlled by infra-red.
These control figures are used to fine-tune the parameters of the extruder with regards to outer diameter and wall thickness. The
surface of the tube is then passed through a flame before being ink marked by thermo-diffusion, befor arriving at the final traction devices for winding on reels.

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