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Quick Disconnects

I

ickywu

[H]ard|Gawd
Joined
Jun 11, 2004
Messages
1,205
All's right in my WC world except 1 thing: when I need to change mb's or something serious it's a pain to take my expernal loop down. I bought some valves from performance pc's but they restricted my 1/2 inch system. What I need is some kind of quick and easy way to disconnect in and out so as to loose little fluid and make the restart low ag.

Gotta be better solutions than I've found. Got any suggestions?
 
I have always wanted to use something like these. But when you disconnect it is there any fluid leaking? Even a small amount, one would think there would be.
 
tylerdustin2008 said:
I have always wanted to use something like these. But when you disconnect it is there any fluid leaking? Even a small amount, one would think there would be.
Click to expand...

About 1-2 drops may still stick to the male side due to the high surface tension of water. I love these things, and use them on my external setup.
 
JC634 said:
http://www.usplastic.com/catalog/pr...=USPlastic&category_name=6917&product_id=7413

I use the bulkhead versions. Work's fine for me.
Click to expand...

Thanks for the link and looks interesting. Let me ask you a couple questions. On the pic linked, the right hand (female) connector has a large round button. Is that some kind of release? Also, is there a valve integrated with these to prevent flow when decoupled? Is there something explicit to do to turn off flow, or is it automatic when decoupled?

Thanks
 
It's all automatic. When they get disconnected the flow is interrupted, nothing special you have to do.
 
The link shows the automatic one, ones that do not shut off are also available. I too use them but mainly for my fill line in my old school WCed machine. The automatic ones have a potential to reduce flow rates quite a bit due to the reduction in effective tubing diameter and placement (right in the middle of the flow) of the valve but some studies show flow rate is not all that important anymore with the newer components out and sometimes something works so well at solving a problem you want solved (and nothing else around will do the job as easily) you just do it. Mine is over 5 years old, gets used about 3 times a year to top off my fluild level and shows no sign of wearing out or leaking, the O rings are pristine. It will probally last longer than I will.
 
ickywu said:
Thanks for the link and looks interesting. Let me ask you a couple questions. On the pic linked, the right hand (female) connector has a large round button. Is that some kind of release? Also, is there a valve integrated with these to prevent flow when decoupled? Is there something explicit to do to turn off flow, or is it automatic when decoupled?

Thanks
Click to expand...

^^^Answered above.:)
 
BillParrish said:
The automatic ones have a potential to reduce flow rates quite a bit due to the reduction in effective tubing diameter and placement (right in the middle of the flow) of the valve
Click to expand...

QFT

If you look at the engineering drawings available from Colder (automatic flow stop units) you will see that you take a big hit in flow despite the fact that they are called high flow couplings.
 
My previous setup included a single Swiftech 220 rad. It had no quick connects and was contained completely within the computer case. Flow = 5 L/M.

I added an external water box with a 2nd 220 rad, the Colder quick connects and significantly longer amount of 7/16 dia hose. Flow = 3.8 L/M.

Singificant? Perhaps, but the reduced flow rates did not increase temps in my CPU/GPU. Also, how much the flow rate changed due to the qc's is debatable.

In the end, what is the point of a qc without shutoffs? No shutoffs = lots of water all over the place.:p
 
There's not near a 24% drop in flow, I tested the flow restriction several years ago and it came out to be a loss of something like a few gallons per hour, nothing that's going to effect the systems overall performance..............:rolleyes: At the time I had 4 sets on my loop and with 2 blocks in the loop there wasn't a full degree difference in temps (load or idle) between having the QD installed or not..............:eek:.
 
JC634 said:
My previous setup included a single Swiftech 220 rad. It had no quick connects and was contained completely within the computer case. Flow = 5 L/M.

I added an external water box with a 2nd 220 rad, the Colder quick connects and significantly longer amount of 7/16 dia hose. Flow = 3.8 L/M.

Singificant? Perhaps, but the reduced flow rates did not increase temps in my CPU/GPU. Also, how much the flow rate changed due to the qc's is debatable.

In the end, what is the point of a qc without shutoffs? No shutoffs = lots of water all over the place.:p
Click to expand...

I agree with Biohazard. The drop in flow is mostly attributed to the extra radiator. If you have free time, why not see the difference in flow with and without the quick disconnects, keeping everything else constant? :p
 
As far as decreasing flow rates are concerned, the effect of QDs varies. If you already have a very restrictive loop, QDs will not have a large effect. If you have a high flow loop, their effects will be much more substantial. XS seems to be down ATM, but MartinM210's flow rate estimator is a very helpful tool.

Here are the Colder QDs that I used in my last build. So far it's already saved quite a bit of time because the loop never needs drawing, and in the unlikely event that the entire loop has to be drained, it'll be that much easier.
 
What we need is a nice miniature ball valve with barbed connection on one end and a quick disconnect with no (well, as little as possbile) flow restriction on the other
 
DarkenReaper57 said:
I agree with Biohazard. The drop in flow is mostly attributed to the extra radiator. If you have free time, why not see the difference in flow with and without the quick disconnects, keeping everything else constant? :p
Click to expand...

LOL. Free time = not! It would be a nice test, but the QC's are pretty integral to the WC setup and would be a REAL pain to replace with hose or trade them out with double hose barbs (which introduce their own restrictions).

But never fear. Since I started WC's about 1-1/2 years ago, I have completely redone my setup at least 3 times! I'm pretty happy with it right now, but we'll see...;)
 
BillParrish said:
What we need is a nice miniature ball valve with barbed connection on one end and a quick disconnect with no (well, as little as possbile) flow restriction on the other
Click to expand...

Double ball valve would work. Actually, I have used such an item in filter setup for one of my older fish tanks. Tank and filter are now gone, and I *think* the valves would be slightly on the small side for a 7/16"-1/2" system.

hmmm... Link? http://www.marineland.com/products/consumer/con_magacc.asp Actually says for 1/2" hose. Who wants to try them out? Here is link to a vendor I use frequently: http://www.drsfostersmith.com/Produ...allpartial&Ntk=All&N=2004&Ntt=marineland&Np=1.

$15 + shipping! Cheap!
 
Biohazard is right... the flow restriction is minor at best, it will not effect the cooling of your loop, the radiator is a hell of a lot more restrictive than the QC's...

I love them, and they made emptying my ext. loop so easy...

You get 1 or 2 drops of water, thats it.

They work great

http://www.hardforum.com/showthread.php?t=946726
 
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