Multilayer Pipe Coils
The Firmopress Pert-al-Pert multi-layer pipe consists of 5 layers. One polyethylene layer is applied to the inside and one to the outside of the welded aluminium pipe. Both PE layers are permanently bonded to the aluminium pipe by means of an adhesive layer. The polyethylene used is a non-cross-linked polyethylene of raised temperature (PE-RT – polyethylene of raised temperature resistance).
The pipe has WRAS approval so pipe quality and integrity can be assured, with the approved press fit system this also means that any off cuts from the underfloor heating system can be used for potable drinking water installations. The aluminum core is 100% oxygen diffusion tight, therefore preventing the ingress of any oxygen. The pipe compensates and reduces snap-back forces and heat expansion with changes of temperature and the system is designed for easy, safe and fast pipe installation.