Blansol PEX/AL/PEX multilayer (‘alupex’) pipes have superior performance with regard to connection viability. Multilayer pipes based on cross-linked polyethylene (PEX/AL/PEX), ensure that the compression force at the union is maintained even at high temperatures (over 95°C). Other polyethylenes which are not cross-linked, melt at these high temperatures, so the wall-thickness of the pipe becomes thinner, reducing the compression force of the union with an increased risk of leakage.
Blansol Multipex pipes have their aluminium layer butt-welded. This improves their resistance to both internal pressure and to the stress generated when the pipes are bent during installation. In the butt-welded multilayer pipes, the welding line of the aluminium layer is the strongest point of the layer.
[inspic=266,right,fullscreen,350]We would like to bring to your attention the fact that there are other multilayer pipes on the market in which the aluminium layer is overlapped and welded by an ultrasonic system. It is our opinion that in this kind of multilayer pipe, the welding line is the weakest point of the aluminium layer, leading to inferior performance in terms of resistance to internal pressure and to the stress generated when the pipes are bent during installation.