Used for natural gas networks, as well as drinking water supply installations, made from high-density polyethylene pipes with thicknesses corresponding to SDR 11 SDR17 according to EN 12201-3:2011+A1:2012 and EN 1555-3:2010+A1:2012. Manufacturing method by injection molding in PE100, with electrofusion fitting resistance embedded in material with dimensions corresponding to SDR 11 (ISO S8), according to EN 12201-3:2011+A1:2012 and EN 1555-3:2010+A1:2012. Welding voltage 40 V 4 mm connectors Limited displacement welding indicators With active clamping system Welding must be performed by authorized welders with appropriate equipment and in compliance with the welding procedure.