Quick Disconnects (QDCs) are nifty little connectors that let you quickly remove an item from your loop without having to drain the loop. This is very useful for example when you want to either perform maintenance or swap out a component. I love QDCs and use them everywhere. I use them for bench testing when I swap out a cpu block. I use them in builds in order to remove a motherboard tray easily. I use them on radiators in order to remove a radiator easily for dust removal.
For a long time Koolance dominated the QDC industry. They had a 3 different sizes – the small VL2, the larger VL3 and the huge VL4. Koolance refined the design and improved it by increasing the flow and relaunched the same lineup with an N suffix and this version ruled the roost for a while. Recently Koolance launched an updated QDC – now called the QD series. Other manufactuers also wanted to compete. Swiftech brought in their “Lok-Seal” design. Bitspower also somewhat stealthily launched their QDCs. Phobya also had some offerings. It seemed time to round these up and see who was king of the hill.
Koolance QD Series Quick Disconnects
Swiftech “Lok-Seal” Quick Disconnects
From top to bottom: Koolance VL4N Pair, Phobya Push Type Pair, Phobya Push Type Pair, Koolance VL3N Pair, Koolance QDC4 Pair, Phobya Twist Type Pair, Swiftech Lok-Seal Pair
