NIRON CLIMA ALL-PRO UV resistant system diameter 6"x10" has been successfully installed for the hydronic system of the University of Illinois. NIRON CLIMA ALL-PRO It is the innovative preinsulated PP-RCT pipe and fitting system that is ideally suitable for applications in areas where the heat loss reduction is essential. This product range was specifically designed for networks for the distribution or adduction of hot fluids. The reliability, ease of installation and relevant physical-mechanical properties of the materials used allow installers to avoid many problems when installing heat distribution and conditioning systems. The possibility of burying pipes directly eliminates high masonry costs. In tunnels or manholes the full tightness ensures durability. Moreover, ease of installation allows substantial time savings.