This pipe is made up of five layers distributed as follows:1st PE-RT type II layer 2nd Adhesive layer3rd Overlapping aluminium welded by ultrasounds or aluminium butt welded by laser4th Adhesive layer 5th PE-RT type II layerPE-RT type II (temperature-resistant polyethylene) is a polyethylene resin with a unique molecular structure consisting of a main ethylene chain and controlled ramifications that provide excellent long-term hydrostatic strength.Â
Through overlapping aluminium welding, a wider connection is created, which increases the safety index. Ultrasound welding does not require significant thickness of the aluminium to form a blade.Â
Therefore, the thickness of the aluminium does not makethe pipe harder, making post-production handling very easy.MULTILAYER PE-RT / AL / PE-RT pipes are produced with an optimised aluminium blade thickness, so that stability is maintained when bending. In this way, the assembly of the pipe is easier as it does not require a lot of strength to bend and can be done manually.The aluminium blade gives the pipe a very important property: the ability to resist to expansion.Â
As the polyethylene and aluminium pipes are fixed, pipe expansion is reduced as the aluminium expansion factor is low. The performance of the HELIKLIMA pipe is similar that of a metal pipe.Given that the inner and outer layers of the pipe are made of PE-RT, we obtain a temperature-resistant pipe with reduced roughness, ensuring that no sediments build up and, thus, preventing the formation of limescale.