At Diaval – Comeval, we offer “H₂ Ready” valves, exhaustively tested for direct contact with hydrogen, for different applications suited to the demands of the new energy economy. From production and storage through to transport and use, every stage of the hydrogen value chain requires reliable, safe and durable equipment.

Hydrogen, being light and volatile by nature, demands materials and technologies specially designed to guarantee maximum safety and tightness. The valves used must therefore meet the most rigorous standards and deliver stable performance even under extreme conditions.

Guaranteed strength and durability

Valves for hydrogen applications are made from austenitic stainless steels specially designed to resist hydrogen embrittlement. Además, they incorporate metal bellows and sealing systems certified to international standards, ensuring leak-free operation both internally and externally.

Different types of valve are used according to the function they perform:

• Isolation valves, such as bellows sealed or packed valves, which ensure shut-off in every medium.
• Safety valves, to protect systems against overpressure.
• Control valves, essential for controlling flow and pressure.

Among the most notable solutions are the ZETRIX triple eccentric butterfly valves. This innovative design allows friction-free closing, greater durability and complete tightness, features that are essential for processes such as water electrolysis, where green hydrogen is generated from renewable energy.

Safety and efficiency for hydrogen production and control

In hydrogen production plants, válvulas play an essential role; they control the flow of water, oxygen and hydrogen, regulate pressure and protect the system against possible overpressure. Thanks to their versatility, ARI-Armaturen valves adapt to different media and working conditions, guaranteeing maximum safety and operating efficiency.

Committed to innovation and sustainability in valves for different hydrogen applications

At Comeval, we are committed to innovation and sustainability as the drivers of industrial progress. Our technical team supports every customer in selecting the right valves for their needs, offering specialist advice and tailored solutions.

With ARI-Armaturen valves for hydrogen applications, we are moving towards a sustainable, safe and efficient energy future.