The valve specialist GEMÜ has successfully had several butterfly valves certified in accordance with DIN EN 13774 and DVGW-CERT ZP4110. The test by the German Technical and Scientific Association for Gas and Water (DVGW) confirms the complete suitability of the valves for use with hydrogen in gaseous form.

The GEMÜ R480, R481, R487, R488 Victoria and GEMÜ R470, R471, R477 and R478 Tugela butterfly valves are suitable for operation with hydrogen. The certification applies to all body types and pressure ratings.

This makes GEMÜ butterfly valves suitable for a wide range of industrial applications in the hydrogen sector. They are used in electrolysis, PSA and fuel cell systems as well as in distribution networks for shutting off and regulating gas and liquid flows. They are also used in secondary processes such as cooling water, gas and water treatment systems. In power-to-liquid systems, they enable the precise control of hydrogen,CO₂ and synthesis gas flows in reactor and supply circuits.

The certified series meet all technical requirements for hydrogen applications, including compact design, short switching times and suitability for a wide range of media.

With the completed certification, the GEMÜ butterfly valves are now available for all applications in which hydrogen is used in gaseous form. They therefore offer customers tested solutions for the safe, reliable and efficient operation of hydrogen-based systems.