Liquid Flow Restriction

I use a CORSAIR Hydro XD5 pump/reservoir combo unit with the pump powered by a direct SATA connection to a CORSAIR HX750 PSU and controlled by an Aquacomputer Aquaero 6 XT. There is a previously calibrated in-line flow meter and Dwyer 490 Series 1 wet-wet manometer to measure the pressure drop of the component being tested—in this case that of each radiator. Every component is connected to the manometer by the way of 13/16 mm tubing, compression fittings, and two T-fittings.


Color me impressed! I suppose I did expect the EK-Quantum Surface S360 to do well here given the increased number of tubes, all of which are also thicker than average, which I thought would put it up as among the least restrictive of the thinner radiators, but it does even better in besting some thicker dual-row radiators that have much thinner tubes! I would classify this as a low restriction radiator thus, although practically most entrants here should not worry you much compared to a typical CPU or GPU block.