How do pressure regulators deliver stable hydrogen pressure and flow for fuel cells, refueling, and electrolysis—safely and efficiently?
In this episode of Hyfindr Tech Talks, Jack Samways (Pressure Tech) joins Steven Oji from the factory floor to unpack pressure regulator fundamentals and real-world hydrogen applications. Jack explains spring-loaded (manual) vs air-loaded (PLC-controlled) regulators, the decaying inlet effect, balanced main valves, and two-stage designs used for high-pressure systems. You’ll also hear where regulators fit across the hydrogen ecosystem—from electrolyzers and refueling stations to trucks, buses, and fuel cell stacks.
You’ll learn about:
Regulator basics: reducing 350–700 bar down to precise set pressures for fuel cells
Flow vs. pressure requirements: orifice/Cv sizing for accurate delivery
Stability & accuracy: decaying inlet effect, balanced main valve, and two-stage approaches
Control strategies: manual set-and-forget vs air-loaded regulators with PLC control (ramp rates, temperature/pressure corridors)
Where they’re used: electrolyzers (back-pressure regulation), H₂ refueling, and vehicle fuel cell systems
Safety & standards (overview): responsiveness to J2601 fueling profiles, robust design practices aligned with hydrogen high-pressure expectations
Perfect for system engineers, safety leads, and fuel cell integrators who need reliable pressure control across hydrogen applications.
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