Used for natural gas networks, as well as drinking water supply installations, made from high-density polyethylene pipes with wall thicknesses corresponding to SDR 11 in accordance with EN 12201-3:2011+A1:2012 and EN 1555-3:2010+A1:2012. Manufacturing method by injection molding in PE100 molds, with electrofusion fitting resistance embedded in material with dimensions corresponding to SDR 11 (ISO S8), in accordance with EN 12201-3:2011+A1:2012 and EN 1555-3:2010+A1:2012. Welding voltage 40 V 4 mm connectors Welding indicators with limited displacement Integrated pipe fixing system Welding must be performed by authorized welders with appropriate equipment and in compliance with the welding procedure.