Hydrogen is increasingly seen as a key technology for energy transition and the decarbonization of varoius sectors. Its versatility as both an energy carrier and a raw material makes it an essential element in future energy and industrial policies. Butterfly valves are used in a wide range of applications, from hydrogen production and transport to storage and utilization in fuel cells. Particularly in the emerging field of hydrogen mobility and industrial processes, where hydrogen serves as an energy carrier or raw material, reliable and safe butterfly valves are essential. Hydrogen technology imposes specific requirements on butterfly valves. H2 has unique physical and chemical properties that require special consideration.