POLIETILENETUBI pipes diameters 355 mm made of PE100 RC have been installed for an irrigation consortium in Lugo di Ravenna. POLIETILENETUBI is the piping range made of high density polyethylene for the distribution of pressure fluids and fuel gas and includes NADIR PE 100 and NUPIGAS pipes. NADIR PLUS new generation PE 100-RC high density polyethylene pipes for the distribution of fluids under pressure and fuel gas. A big step forward in the resistance to slow crack growth was made possible by the latest generation of high density PE100, developed specifically to allow the use of faster and cheaper technical installations such as installations without trenches or without sand bed (with or without reuse of debris) and relining installations (renewal and/or replacement of old distribution networks). These new techniques require the use of materials that are more and more resistant: NADIR PLUS Fluidi and NADIR PLUS Gas is the answer!