Quick disconnects - too restrictive?

GoogalyMoogaly · 19 May 2011 at 21:25

Hi,

(Another) Quick question...

Is it ok to use Quick disconnect fitting in water-cooling loops or are they too restrictive? How many can you use before they make the loop too restrictive?

What about right angle connectors? The ones I have seem to be quite narrow.

If it makes any difference the rest of the kit I'm using is:
Swiftech MCP35X pump
HeatKiller 3.0 CU CPU block
EK 5870 Copper + Plexi GPU block
240mm EK Coolstream Rad
XSPC RS240 Rad

Thanks.

twist3d0n3 · 19 May 2011 at 21:38

wouldn't of thought quick disconnects would be very restrictive at all, but that's just guess work.

as for 90deg connectors, they rape flow

khemist · 20 May 2011 at 08:36

Read here http://skinneelabs.com/quick-disconnect-roundup/ i had the VL3N's for my last build but ended up selling them on before i had used them, i would have no problems using them in my next build for sure.

GoogalyMoogaly · 20 May 2011 at 19:29

Thanks for that.

Annoyingly one of my QDC is also a right angle connector

Unfortunately I didn't think about the restriction side of things when I bought them...

mraerosmith1981 · 20 May 2011 at 21:47

QDC's do have an impact on your flow, but if you have a decent pump, its not a big issue, or to look at it another way its much more convenient to have the QDC's than not if u ever need to make any real changes to your rig

mike gunnz · 20 May 2011 at 22:28

Have a combination of Bitspower compressions and 3 Koolance QDCs in my single loop and my flow rate seems fine. Havent done any Skinee type scientific tests or what not, its just a matter of looking at the turbulence in my res to see that the QDCs barely affect my flow rates at all.

dazzerd · 21 May 2011 at 00:04

don;t know about qdc but I have 4 90's in my loop and I have not really noticed any issues whatsoever so don't worry.

momo56 · 21 May 2011 at 03:13

Im using 2 VL3N QDC's in my loop and saw no temperature difference. I consider my loop to be extremely restrictive before I even used the QDC's having 2 gpu blocks, 2 mosfet, 1 NB/SB, ram block and 1 cpu block.

GoogalyMoogaly · 21 May 2011 at 13:09

Well i reworked my loop to remove the 90 degree fittings, just in case. It doesn't look as tidy now, but I prefer the peace of mind.
I couldn't find any Koolance VL3Ns in stock when I bought mine, so they're cheaper ones (Phobya I think). I took out the 90 degree one and left the other on in. Not massively useful by itself, but hoping it will aid in draining the loop when I come to do that.

Think I might try to get hold of some Koolance ones for next time I redo my loop (if there is a next time, depending on the results I might go back to air next time).

They are expensive though ain't they?

How long should you leak test for? I'm getting impatient

Anyone interested in some pics when I'm done? (gonna wait until it's up and running though)

mike gunnz · 21 May 2011 at 20:20

Expensive but they pay for themselves in terms of the convenience they offer.

I would have left the 90 degree fittings in as I don't believe they restrict flow much if at all.

I don't bother leak testing anymore. If it hasnt leaked in the first couple hours you'll prob be fine.

Pics are always good.