In the deep geothermal project in Traunreut, one of the most demanding of its kind, extreme conditions and the highest requirements are paramount. Solutions from Hartmann Valves ensure reliable and virtually maintenance-free plant availability throughout all project phases.


Equipped with 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 apply to sealing technology, the materials used, and the valve design: requirements that Hartmann products consistently meet.
TrGt1 4600m (TVD) TrGt2 5000m (TVD)
165 liters/second
up to 12 MW
5 MW el
“The deepest and most productive well in Germany – gec-co GmbH took on this challenge together with Hartmann Valves. As technical planner of the geothermal plant, we were particularly impressed by the extensive geothermal expertise and the dedicated commitment of the Hartmann team.”
We support you in all project phases: from planning and design to manufacturing, installation, and regular inspection.