Hydrogen Pressure Regulator - Reflux 819 H

  • Suitable for 100% hydrogen applications
  • Designed for high-pressure transmission systems
  • Used in power plants and medium pressure gas distribution networks

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The Reflux 819 H is a pilot-operated gas pressure regulator designed and manufactured by Pietro Fiorentini, specifically for 100% hydrogen applications. It is suitable for high-pressure transmission systems, power plants, and medium pressure gas distribution networks. Classified as Fail Close according to the European Standard EN 334, it ensures safe operation in critical applications. The regulator offers high accuracy, a high turn-down ratio, and is built with a compact and simple design. It is suitable for use in various applications including H₂ storage, heavy industries, gas reverse-flow, H₂ liquefaction plants, regasification plants, blending units, and electrolyzer plants. It is certified according to European Directive 2014/68/EU (PED) and has a bubble tight leakage class, better than VIII according to ANSI/FCI 70-3. The Reflux 819 H is designed for reliable performance across a wide range of pressures and temperatures, making it ideal for demanding industrial environments.

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

  • high accuracy
  • high turn-down ratio
  • Fail Close 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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