New NIRON header diameter 355 with 10 outputs diameter 125 or with 4 outputs diameter 200 directly from NUPI production plant! NIRON is a complete polypropylene pipe and fitting system for the distribution of hot and cold water in plumbing and air conditioning systems, for the conveyance of drinking water and alimentary fluids, for installations in industrial plants and for the transport of compressed air and chemical substances. The pipes and fittings that compose the NIRON range are produced using random copolymer polypropylene PP-RCT, a plastic material with a special molecular structure ensuring high mechanical resistance and duration, even at high temperatures and pressures.