Why do Hydrogen Systems Require Different Components than Oil and Gas?
Hydrogen applications present unique fluid system challenges, including leak-tight containment of small-molecule gases, high operating pressures, and material compatibility considerations. In this video, you'll learn about the key components commonly used in hydrogen systems and the important role each plays in supporting safe, reliable operation. From fittings and valves to regulators, tubing, and other fluid system components, proper product selection helps maintain system integrity while addressing the demanding conditions associated with hydrogen production, distribution, storage, and refueling. Swagelok offers a broad portfolio of hydrogen-compatible fluid system solutions backed by materials science expertise and engineering support for hydrogen applications. For a deeper understanding of hydrogen system design and component selection, explore the resources below.
Video Transcript
CRAIG GIFFORD:
Welcome to Ask Swagelok. I'm Craig Gifford, here again with Chuck Hayes, who is Swagelok’s global technical lead for clean energy. We've been discussing the differences in designing fluid systems for hydrogen applications versus oil and gas applications. So, Chuck, let's talk today about components. Why do hydrogen fluid systems require different components than oil and gas systems?
CHUCK HAYES:
Well, to start with, Craig, it's really simple. If you look at a big oil and gas rig, everything on that rig is usually made out of pipe—very large diameters, big flange ends bolted together. That’s how the whole system is constructed.
In hydrogen applications, we’re typically using smaller components to move that small‑molecule gas around, and we use tubing. Tubing is radically different, and we need to use different types of fittings. Typically, we use tube fittings, and the Swagelok tube fitting is a great option for holding in that small‑molecule gas.
But what ends up happening is that you often have medium‑pressure conditions. If you get above 10,000 psi, or 700 bar, you typically move to what's called a cone‑and‑thread fitting. It's made from a piece of tubing that requires a lot of manipulation.
In the end, though, that fitting can leak when you're dealing with a small‑molecule gas. It’s very susceptible to vibration or movement due to thermal changes, so it's not the best choice.
So, we believe the Swagelok tube fitting is a much better solution. We have many discussions comparing cone‑and‑thread technology with Swagelok technology, and there are resources available on the Swagelok website for anyone choosing components. It’s a great place to learn more.
CRAIG GIFFORD:
Perfect. Well, thank you, Chuck. And thank you for joining us at Ask Swagelok.
