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The Sigma Hydrogen
Explosion Relief Valve

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Sigma Valve for Flameless Hydrogen Explosion Relief

As the world moves away from fossil fuels, it is crucial to continuously innovate and develop new technologies that can harness the power of sustainable energy sources. Hydrogen, with its potential as a CO2-free fuel and its ability to be stored, plays a vital role in this energy transition.

The Sigma Valve for Hydrogen offers exceptional performance. It is specifically tested for use in hydrogen applications, including but not limited to reciprocating compressors and combustion engines.

Our flameless pressure relief valve goes beyond expectations by resealing itself after an explosion, thanks to a spring-loaded mechanism. The mechanism blocks oxygen from re-entering after an explosion, providing an additional layer of safety, helping to mitigate the risks of re-ignition, and further damage.

Hydrogen 2


Key Fuel Facts

Hydrogen internal combustion engines are expected to play a large part in decarbonizing the maritime shipping industry. Our patented technology is designed to withstand the demands of hydrogen service.
  • Hydrogen flame fits through smaller gaps than methane, making it challenging to provide flame arresting.
  • The explosion potential for hydrogen is high. Concentrations in the air can ignite between 4% and 75%.
  • Currently, hydrogen’s main uses are petroleum refining, ammonia production, methanol production, and steel production.

Learn More About the Hydrogen Revolution

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