Celle, December 2025. With the ramp-up of Carbon Capture and Storage (CCS) and Carbon Capture and Utilization (CCU), the first CO₂ pipeline networks, compressor stations, storage facilities and industrial process chains are emerging across Europe, bringing entirely new requirements for materials, tightness and the design of metal-to-metal sealing valves. Hartmann Valves demonstrates how, based on more than 75 years of experience, technical expertise and proven solutions from high-pressure and energy technology applications, CO₂ projects can be implemented safely, efficiently and sustainably. The product portfolio is being selectively expanded to include welded High Integrity Shut Off valves and optimized wellheads for CO₂ transport, CO₂ storage and CO₂ processing.
In CCS, CO₂ is captured, compressed, transported and permanently stored underground. The integrity of the entire system from capture to high-pressure pipelines through to the wellhead and into the reservoir is crucial. Hartmann Valves offers project-specific wellheads and metal-to-metal sealing valves that are designed for demanding pressure and temperature conditions and ensure reliable shut-off.
“Safety and tightness are our top priorities. Our metal-to-metal sealing valves are designed for applications under extreme conditions and ensure secure shut-off, even with supercritical CO₂,” explains Werner Hartmann, Managing Director of Hartmann Valves. “We purposefully transfer our decades of development and manufacturing experience in high-pressure and special valves for hydrocarbons to CO₂ storage technologies.”
Corrosion-resistant materials such as nickel-based alloys and high-strength steels prevent leakage and material degradation. Combined with precise monitoring, risks and operating costs can be significantly reduced.
In addition to safe storage, the use of CO₂ as a valuable resource is becoming increasingly important. In processes such as methanol or e-fuel synthesis, urea production, concrete curing or as a refrigerant (R744) in large heat pumps, CO₂ is part of closed process chains with high requirements for pressure retention and tightness. Here, Hartmann Valves technical expertise from high-pressure, gas and chemical applications comes into play.
Hard-coated sealing surfaces made of tungsten or chromium carbide, precisely manufactured ball-seat pairs and robust actuator systems ensure permanently reproducible tightness, even with frequent switching cycles and fluctuating operating conditions, such as extreme pressure changes. “We consistently apply our expertise developed over many years in metal-to-metal sealing valves and high-pressure systems to the requirements of future CO₂ infrastructures. This enables us to create reliable solutions for safe and efficient CO₂ transport and storage systems,” emphasizes Christian Hartmann, Managing Director responsible for Research and Development at Hartmann Valves.
The company’s experience in handling CO₂ in the oil and gas sector, refineries, the chemical industry and geothermal applications, where CO₂ is used for example as a scaling inhibitor, also supports this work.
With comprehensive experience in metal-to-metal sealing valves, wellhead technology and high-pressure systems, Hartmann Valves makes an important contribution to the advancement of CO₂ technologies. Whether in the storage or utilization of CO₂, the company stands for technical safety, long-term stability and sustainability.
Hartmann Valves is a leading manufacturer of metal-to-metal sealing ball valves, special valves and wellheads. Founded in 1946, the company has decades of experience as a system provider in high-pressure, natural gas and geothermal applications and develops customized solutions for demanding energy and industrial projects worldwide.