for gas or water supply networks, installed underground. -Material: PE100, SDR 11 (ISO S5). -10 bar gas / 16 bar water (calculated for a temperature of 20 °C) -according to EN 1555-1:2011. ISO 4427-3. ISO 4437-3 -dimensions according to EN 12201-3:2011+A1:2012, EN 1555-3:2010+A1:2012 -manufacturing method: injection molding -the electrofusion fitting’s resistance is embedded in the material -the internal surfaces of the fittings are smooth, without striations -welding temperature between -10 °C and +45 °C -welding voltage 40 V -4 mm connectors -limited displacement welding indicators Welding must be performed by authorized welders using appropriate equipment and adhering to the welding procedure.