Hydrogen Pressure Regulator - Reflux 819/FO H

  • Suitable for 100% hydrogen applications
  • Fail Open classification according to EN 334

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The Reflux 819/FO H is a pilot-operated gas pressure regulator designed and manufactured by Pietro Fiorentini, specifically tailored for 100% hydrogen applications. It is classified as Fail Open according to the European Standard EN 334, ensuring safe operation in critical systems. This regulator is suitable for high-pressure transmission systems, power plants, and medium pressure gas distribution networks. It offers high accuracy, a compact and simple design, easy maintenance, and built-in accessories. The device is certified under European Directive 2014/68/EU (PED) and DVGW, and it is a true Fail Open plug and seat regulator, making it ideal for hydrogen applications with reliable performance and safety.

Use Cases

  • high-pressure transmission systems
  • power plants
  • medium pressure gas distribution networks
  • H₂ storage
  • H₂ liquefaction plants
  • Regasification plants
  • Blending units
  • Electrolyzer plants

Capabilities

  • Fail Open
  • high accuracy
  • easy maintenance
  • high turn-down ratio
  • built-in accessories
  • true Fail Open plug and seat regulator
  • suitable for 100% Hydrogen
  • built-in pilot filter
  • balanced type
Pietro Fiorentini S.p.A. Pietro Fiorentini specializes in hydrogen technology, offering products and solutions for hydrogen use, leveraging its extensive experience in natural gas. The company focuses on renewable energy projects and sustainable technologies. Established in 2018, it has developed innovative solutions for hydrogen applications.

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