During the construction of the storage facility in Jemgum, EWE Gasspeicher GmbH relied on proven solutions for maximum operational safety. The “Hartmann concept” featuring metal-seated ball valves from Hartmann Valves ensures permanently gas-tight and virtually maintenance free performance, even with large nominal diameters.



Equipped with gas-tight, metal-seated ball valves, they withstand high temperatures and pressures. Special designs offer additional safety and economic advantages.
Our low-maintenance and durable valves ensure maximum service life in high-load systems.
Depending on the medium, the highest requirements are placed on the sealing technology, the material used, and the valve design: requirements that Hartmann products consistently meet.
approx. 350 million m³
200,000 m³/h
250,000 m³/h
3 market areas, 4 transmission system operators
“To ensure maximum availability and technical flexibility at the Jemgum natural gas storage facility, we relied on high-performance technology and a trust-based cooperation with our supplier. Hartmann Valves impressed in the project with reliability, adherence to schedules, and technical quality.”
We support you in all project phases: from planning and design to manufacturing, installation, and regular inspection.