As a leading wellhead supplier in German deep geothermal energy, Hartmann Valves supports Stadtwerke München (SWM) in implementing its district heating vision.
To implement its district heating vision, Stadtwerke München relies on strong partners and innovative geothermal projects. Hartmann Valves solutions support the modernization of existing facilities as well as the expansion of key projects for a sustainable heat supply.



The gas-tight, metal-to-metal sealing ball valves, they withstand high temperatures and pressures. Special designs offer additional safety and economic advantages.
Our low-maintenance and durable valves ensure maximum uptime in highly stressed systems.
Depending on the medium, the highest requirements are placed on sealing technology, the material used and the valve design: requirements that Hartmann products meet reliably over the long term.
3,720 m
135 °C
130 l/s
5.5 MW el
“We are pleased to have found a partner in Hartmann for wellhead components, with whom we can jointly develop innovative solutions as part of the engineering process and implement projects efficiently based on established standards.”
We support you in all project phases: from planning and design through manufacturing to installation and regular inspection.