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Hydrogen Back Pressure Regulators

Manual/Automatic Control Hydrogen Back Pressure Regulators - Scribner

Scribner, LLC

  • All stainless steel construction including regulators, condensate collection tanks, tubing, and fittings
  • Dual channel with isolated flow paths
  • Independent control or balancing of anode and cathode pressure
  • Designed for use with gas with dew point up to 120 °C at 10 SLM
  • Flexible pressure control through FuelCell

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Description Vendor

The Back Pressure System is designed for accurate, independent control and measurement of anode and cathode pressure. It is constructed entirely of stainless steel, including regulators, condensate collection tanks, tubing, and fittings. The system features a dual channel with isolated flow paths and is suitable for use with gas having a dew point up to 120°C at 10 SLM. It offers precise pressure control with an accuracy of ±3.5 kPa or 0.5 psi, ensuring stability across a flow rate range of 0.1 to 12 SLM. The system supports flexible pressure control through FuelCell® and includes options for High Temperature, Standard, and Automatic Back Pressure systems. It also provides maximum back pressure set points, alarm triggers, and the ability to program pressure profiles using Change Pressure Experiment or Arbitrary Control Experiment. The system ensures accurate pressure control and stability, making it ideal for applications requiring precise and independent pressure management.

Use Cases

  • Typically used in hydrogen and related industrial applications.

Capabilities

  • Accurate pressure control ±3.5 kPa (±0.5 psi) across flow rates 0.1–10 SLM.
  • Precision pressure transducers integrated for measurement.
  • Control excess gas flow during pressure increases.
  • Configurable maximum back pressure and differential pressure setpoints with alarms.
  • Programmable pressure profiles using Change Pressure Experiment or Arbitrary Control Experiment.
Scribner, LLC Scribner, LLC is a U.S. electrochemical instrumentation company based in North Carolina and known for test systems, measurement electronics and analysis software used by academic, government and industrial research laboratories. The company developed from electrochemical research expertise and has built a portfolio around fuel cells, electrolyzers, batteries, redox-flow cells, membrane testing, impedance spectroscopy and corrosion research. Hydrogen is central to several of its product families: Scribner manufactures fuel-cell test stations for PEM and related cell chemistries and electrolyzer test systems for detailed characterization of single cells and small stacks. Its equipment can integrate power supplies, electronic loads, potentiostats, impedance analysis, gas and water management, product-flow measurement and crossover monitoring, allowing developers to study efficiency, degradation and operating limits under controlled conditions. Within the hydrogen value chain, Scribner is therefore an R&D and validation equipment supplier supporting membrane, catalyst, MEA, stack and electrolyzer developers that require precise electrochemical testing rather than a producer of commercial hydrogen systems.
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