Used for building natural gas networks, as well as drinking water supply installations, made of 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. Manufactured by injection molding in PE100 molds, with the electrofusion fitting resistance embedded in the 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 movement. Integrated pipe clamping system. Welding must be carried out by authorized welders using suitable equipment and in compliance with the welding procedure.