New NIRON ELECTROLET high volume branch fitting with valve and PP-RCT pipe for drilling tool. The NIRON system, particularly suitable for use in large buildings and industrial installations, has special characteristics of the raw material that guarantees high mechanical strength and durability, even at high temperatures and pressures. NIRON boasts various installations in large collective buildings such as schools, universities, hospitals, retirement homes, condominiums and industrial plants where savings in terms of costs and energy and safety are of primary importance.