- Quality, Test & Measurement
Founded in Vicenza in 1996, Diel Srl designs and manufactures temperature-control and ventilation units for resin-insulated transformers. From the very beginning it has partnered with leading national transformer companies and, thanks to the high quality of its products and services, has rapidly expanded into international markets. To ensure top-tier performance, Diel continuously integrates new accessories and technologies and meticulously oversees every phase—from design and layout through assembly to laboratory and field testing—achieving a defect rate below 1,07 ‰. All components and materials are strictly “Made in Italy” to guarantee the highest quality standards. Today, Diel boasts a widespread presence in the majority of countries around the world.
