At HL Cryogenics, we build advanced cryogenic transfer systems that help you move liquid oxygen and other gases with top-notch thermal efficiency. Our core product is the Vacuum Jacketed Pipe—a double-walled stainless steel system with a vacuum between the walls. That vacuum practically wipes out convective and conductive heat transfer, which keeps your liquid oxygen cold and stops it from boiling off too quickly.

Pair the Vacuum Jacketed Pipe with our Vacuum Insulated Flexible Hose, and you get the same insulation but with the flexibility to handle tight spaces or shifting equipment. This setup works especially well for labs and biopharma, where you just can’t afford to be boxed in by rigid pipes.

We don’t cut corners on quality. Every pipe and hose we make is built tough to keep the vacuum seal strong over long runs. To back that up, we add our Dynamic Vacuum Pump System. This system actively monitors and maintains the vacuum, keeping it right where it should be—between $10^{-1}$ and $10^{-3}$ Pa—so your lines stay reliable for years. Unlike static systems that slowly lose vacuum, ours keeps things running smoothly, extending the life of every pipe and hose.

Need precise flow control? Our Vacuum Insulated Valve has an extended bonnet, so the stem seal stays at room temperature. That way, you avoid ice buildup and everything works easily, even at $-183°C$. These valves fit right into your insulated network—no weak spots, no thermal bridges.

For high-demand gear like semiconductor or aerospace setups, we use the Vacuum Insulated Phase Separator. It strips out flash gas so only pure, single-phase liquid makes it through to your equipment. That keeps your system steady and cuts down on pressure swings—pretty important when you’re handling liquid oxygen or nitrogen.