In steam generation, Quadax® butterfly valves are successfully applied at temperatures from +250°C to +300°C and pressures from 40 – 100 bar. To ensure that industrial production capacity is better adjusted to the fluctuating demand of hydrogen, energy storage systems are necessary. The gaseous hydrogen is cooled down to -253° C, compressed and thus liquefied in liquid gas storage tank. Both for the transport in gaseous as well as in the liquid state, the Quadax® butterfly valves prove their full functionality.