New NIRON spigot ball valves for industrial cooling system. NIRON is a complete polypropylene pipe and fitting system for the distribution of hot and cold water in plumbing, cooling and air conditioning systems. 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. The properties and other features of the various components make the NIRON system a great alternative to traditional material used in plumbing installations.