NUPI Industrie Italiane offers a complete system of PE100 pipes and fittings for the transport of drinking water and a complete system of HDPE pipes and PE100 fittings for the transport of pressurized gas. Today, NADIR piping system and ELOFIT fitting range add to the already well-established guarantee of a high-quality product and technology also the guarantee of a prestigious KIWA system certification according to the requirements of UNI EN 12201 Standard part 5 on the transport of drinking water and UNI EN 1555 Standard part 5 on the distribution of combustible gases valid in all member countries belonging to CEN - European Committee for Standardization. UNI EN 12201 Standard and UNI EN 1555 Standard cover the requirements to which raw material, pipes and fittings must respond. Part 5 of both Standards is dedicated to checking the conformity of the pipe and fitting system, thus ensuring the performance of the whole system. This aspect is of major importance when making choices that must be durable and reliable.