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PEX-b/AL/PEX-b metal multilayer pipe with thermal insulation. Internal layer of PEX-b (cross-linked polyethylene), intermediate layer of aluminum longitudinally welded (butt-to-toe) with laser/TIG technology, external layer of PEX-b (cross-linked polyethylene). The intermediate layers of adhesive uniformly join the aluminum layer to the PEX layers. The presence of the aluminum layer guarantees a safe barrier against oxygen and other gases, as well as giving the product excellent resistance to crushing. The insulating layer is protected by a characteristic red colored outer coating film for the heating pipe. Application classes (EN ISO 21003-1) 1, 2, 4, 5 (suitable for transporting drinking water). Minimum operating temperature: -60 °C (in any case above the freezing temperature of the fluid being transported. Maximum operating temperature (EN ISO 21003-1): 95÷100 °C. Maximum operating pressure (EN ISO 21003-1 ): 10 bar Thermal conductivity: 0,04 W/m K. Behavior in fire (EN 13501-1): bare pipe (EN 13501-1):C-s2,d0; insulation (EN 13501-1 LNE P126686) : CL-s1,d0 Available in rolls.
