Henco Gas multilayer pipes are permitted for use in gas pipework in countries where the Henco gas inspection label and certificates are available. In addition, the pipes and their conduit must have yellow marking or be coloured yellow. The Henco multilayer pipe offers all the advantages of metal and plastic:Aluminium inner core, seamlessly welded longitudinally100 % oxygen-tightMinimal linear expansion coefficient comparable to metalFully corrosion-resistant, including against chemical and electrochemical impactsDampens noise, as typical of a plastic pipeInner and outer pipe made of electron-beam cross-linked polyethyleneHigh resistance to pressure and temperatureSmooth surface: low pressure lossAs light as a plastic pipeFlexible, easy to bendThe pipe retains its curved shape even in low temperatures