#Industry News
Manifold Design in Liquid Cooling: Flow Balancing, Structure and Supply Chain
Deviation Under 10%, Orifice Drop at 30-to-50% of Total and 0.1-mm Internal Channels: Why Precision Manifolds, Not CDUs, Are the Schedule Bottleneck
A manifold distributes coolant from the CDU to each cold plate and collects heated liquid back, and the core problem is flow balancing not water splitting, since header pressure changes cause maldistribution, throttling one server and starving another. Standards hold branch flow deviation within 10 percent and imbalance under 15 percent. Three structures: straight-through to eight branches, U-shaped for sixteen and above, chamber for best uniformity. Branch orifice drop set at 30 to 50 percent of total system drop dominates header variation, and internal channels machined to 0.1 millimeter tolerance make precision manifolds the schedule bottleneck. EXTRCOOL provides one-stop liquid cooling solutions.
