QDs that don't suck

[faster3200]

As the thread title implies I am wondering if anyone has any idea of some quick disconnect fittings that are usable in a loop with a proc block.

What I am looking for:
- Not too restrictive
- Not ridiculously expensive for a loop (around compression fitting prices)
- Look decent (Not as important)

I really love the idea of QDs but I have yet too find any that meet my requirements. If you know of any QDs that meet at least my first two requirements please recommend them. So far I have only seen the Colder plastic fittings and the Koolance ones mentioned for use in WCing.

Any thoughts?

[NaeKuh]

there called colder..

there ugly as hell, but have the biggest coupler diameter..

that is what you need to look for when finding low restriction QD.





The BEST QD's but even more ugly, is what they use on fish tank canister filters.
There basically 2 ball valves connected in the middle.

http://www.drsfostersmith.com/produc...=0117826000000



Im still looking for the perfect QD tho, here are excellent options.

If you want bling, dont care about loss of flow, koolance is by far the sexiest tho.

[silverphoenix]

yep yep I personally have 2 pairs of these

[faster3200]

Thanks, for the responses. I may have some more fairly stupid follow up questions to ask you.

[rambler358]

Did I see a response some where indicating that Koolance would be coming out with new VL4 QDs? The last forum maintenance seems to have lost quite a few posts.

[faster3200]

Did I see a response some where indicating that Koolance would be coming out with new VL4 QDs? The last forum maintenance seems to have lost quite a few posts.

VL4s have been out for a while. There are new ones coming out that are G1/4" though.

[skinnee]

Yes, Koolance has their new VL4's out. I'll be testing pressure drop and flow restriction on the Colder and Koolance QD's. I'm hoping to fit this in while CPU blocks are crunching through Prime.

[LOUISSSSS]

Yes, Koolance has their new VL4's out. I'll be testing pressure drop and flow restriction on the Colder and Koolance QD's. I'm hoping to fit this in while CPU blocks are crunching through Prime.

where can we purchase the latest VL4's, the ones with the g1/4 threads..?

[NaeKuh]

where can we purchase the latest VL4's, the ones with the g1/4 threads..?

wont do it.

dean said its pointless because the G1/4 thread is a lot smaller then the bore daimeter of the coupler.

The VL4 has a 5/8 flow though chamber so it would be pointless restricting them down to g1/4 hole.

Only way to hope is if koolance offers it in a G3/8 thread so then we can use coupler transfers and bring it down to G1/4.

[ILikeCosmosS]

I am waiting for the QDs to get some type of threading i might use them at the end of loop or just use as a drain

[DeanB]

wont do it.

dean said its pointless because the G1/4 thread is a lot smaller then the bore daimeter of the coupler.

The VL4 has a 5/8 flow though chamber so it would be pointless restricting them down to g1/4 hole.

Only way to hope is if koolance offers it in a G3/8 thread so then we can use coupler transfers and bring it down to G1/4.

This is what we'll most likely do, and we will have G1/4 - G3/8 threading adapter available

[rambler358]

The VL4 has a 5/8 flow though chamber so it would be pointless restricting them down to g1/4 hole.

Only way to hope is if koolance offers it in a G3/8 thread so then we can use coupler transfers and bring it down to G1/4.

Using a coupler transfer to bring it down to G1/4 would have the same effect, wouldn't it?

[veedubfreak]

I just picked up a whole mess of the new V4 couplers. When i get my evga x58 back from RMA i'll be adding them into the loop. Having TRI-SLI makes it a pain in the ass to get the board out of the case without quick disconnects.

[NaeKuh]

Using a coupler transfer to bring it down to G1/4 would have the same effect, wouldn't it?

yeah but we will get laughed at for doing something like that.

And not koolance. :P

PS. Skinnee should be recieveing 2 colder QD's to compare against a VL4 today.

Also he's getting 3 san aces from me to put on his bench. Lets get some real fans on it!

[brinox]

i just want some QD's that allow me to remove my vid card if needed, since my full cover block seems to not like any of the 4870's i put on it. i have a limited length/bend radius to work with so i may jump on 2 pairs of the VL4's. havent decided yet

[orangekiwii]

wait naekuh

if you want the threaded quick disconnects... if you used VL-3 threading.... it wouldn't impede flow? so if you have a vl4 QD in the tubing vs a VL3 QD threaded to a block... theres basically no difference in restriction?

[Ozzfest05]

Where Do You Buy The Colder Quick Disconnects From???

[rambler358]

if you want the threaded quick disconnects... if you used VL-3 threading.... it wouldn't impede flow? so if you have a vl4 QD in the tubing vs a VL3 QD threaded to a block... theres basically no difference in restriction?

That would be correct.

[RubberDuck]

Where Do You Buy The Colder Quick Disconnects From???

Here --> http://www.colder.com/ & Here http://www.colder.com/Products/Plast...3/Default.aspx

[Ozzfest05]

ok cool I got confused because the layout of the site is weird it should just have the parts and you should just have to hit add to cart and pick the fitting size im going to end up paying someone on this forum to put through the order lol

any model recommendations I need 1/2 inch barbs using this for A chiller system I will be building maybe a dual stage chiller.

[NaeKuh]

wait naekuh

if you want the threaded quick disconnects... if you used VL-3 threading.... it wouldn't impede flow? so if you have a vl4 QD in the tubing vs a VL3 QD threaded to a block... theres basically no difference in restriction?

that is basically the sum of koolance's arguement. So thats why i said if you do use the reduced coupler, its people laughing at you, and not koolance.

Where Do You Buy The Colder Quick Disconnects From???

http://www.mcmaster.com/

Look for Quick Disconnects.

My package to skinnee should be waiting for him at his door now.

[ecidious]

The only way koolance's argument holds up here is if they've made the VL4's just as restrictive as the VL3's even with the increase in pass through diameter, otherwise it's got lower resistance and the G3/8 threads are just a money grab.
Besides thermochill radiators it'll be the only G3/8 product for this market I can think of without hurting the brain.

[skinnee]

My package to skinnee should be waiting for him at his door now.

Got it...thank you much! I have two XSPC DDC tops to test, then I'll be on to the QD's.