UNI Flanges

Flanges according to the UNI standard (prior to European and international standardization) were widely used in Italy before the adoption of EN and standard. The UNI standard (Italian National Unification Body) related to flanges have gradually been replaced by international standards such as: EN 1092-1 for steel flanges and ANSI B16.5 for flanges according to American standards (ASME/ANSI). However, the old UNI standards are still required for the maintenance or replacement of existing systems.