As AI and HPC continue to reshape the digital landscape, rack densities are rising rapidly, driving data center infrastructure into uncharted thermal territory.

As a result, pumped two-phase cooling is evolving from a promising lab concept into a practical technology being deployed at scale. As these systems move into production environments, the focus is shifting from the principle of liquid cooling itself to the actual journey of the refrigerant through the system.

Every stage of this migration must be carefully controlled. Unlike single-phase cooling, where the fluid remains in one state throughout the loop, two-phase systems rely on the precise management of pressure, temperature, and phase change to deliver consistent thermal performance.

In this DCD>Broadcast episode, experts from Parker, a global leader in motion and control technologies, examine the often-overlooked parts of that journey – the tubing and hose assemblies that transport refrigerant between manifolds and cold plates. While these components may appear straightforward, they are critical to maintaining refrigerant charge stability, flow distribution, uptime, and serviceability – all without requiring a complete redesign of rack architecture.