Liquid Flow Restriction

I use a Swiftech MCP50X pump with a FrozenQ 400mL cylindrical reservoir. The pump is powered by a direct SATA connection to an EVGA 1300G2 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 1/2" x 3/4" tubing, compression fittings, and two T-fittings.


If you have read through the previous page, these results won't surprise you. Sure, the dual row of tubing helps mitigate pressure drop across the Leviathan XF 360 radiator compared to a single-row radiator, such as the Leviathan SF 360, but overall, the thinner tubing hurts when compared to other brands. Even compared to the Black Ice Nemesis GTX, which this is closest to (since I have no Nemesis LX here), the two fewer tubes per row as a result of the narrower dimensions for increased case compatibility make this slightly more restrictive to coolant flow. Overall, I would term the Bitspower Leviathan XF 360 as a medium-high restriction radiator, but also note that it is still nowhere as restrictive as a CPU or GPU water block.