Koolance QDC's... Flow rate

Five.Stars · 26 May 2014 at 20:15

Hi there, I currently have a couple QDC's in my loop which allows me to disconnect the large external radiator for any maintenance etc. Anyway, having bought a couple of new gpu's I am going to have to strip everything down. Having re-designed my loop for easier maintenance in future, I am looking at adding another few QDC's in to the equation... My question, how much do these effect the rate of flow?

I am using a D5 built in to a bay reservoir, currently just have the pump set to setting 1 and everything seems to perform well, but wondering if the QDC's are restrictive to the point I would need to run the pump at higher revs to compensate for adding another couple. My plan is to be able to split the loop up in to 3 seperate parts for easy maintenance. Plan on having QDC's on/ near the inlet and outlet from the reservoir so that I can remove that from the case, a QDC on the inlet and outlet from my GPU's so that I can remove/ replace the GPU's as and when I see fit and also my current QDC's going through case from external rad.

Thoughts?

EDIT: Actually thinking about it, that would allow me to split the loop in to 4 seperate pieces. 1) the reservoir 2) the cpu block and 240 internal rad 3) the gpu's 4) the external rad

Sin_Chase · 28 May 2014 at 22:39

I have 2 sets of QDCs in my loop on 2 GPUs, CPU and 2 480 Rads. D5 running on setting 3 and all is fine.

Jokester · 28 May 2014 at 22:49

Which model of QDC?

deFiniLoGy · 29 May 2014 at 13:24

Try to go for the QD3 series, they are much more less restrictive.

If you want to go an older generation, the VL series, don't use anything smaller than VL4N, VL2N is as restrictive as a waterblock if my memory serve me right.

The QD3 is just as restrictive as a fitting whereas QD4 is a very good performer - just a bit too bulky

ubersonic · 29 May 2014 at 13:36

As a rule if QDC's can impede flow enough to cause an issue then it was already borderline, they shouldn't make a difference on a decent loop.

Five.Stars · 29 May 2014 at 19:57

The current QDC's I am using connecting the rest of loop to my external rad are:

VL3N-F13B

and

VL3N-M13B

the female and male part numbers. They seem absolutely fine just now, but I will be adding another 2 of each, so 4 in total.