Quick Disconnects: Koolance VL3 Series

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03-16-2009, 01:02 PM
Hondacity

Quick Disconnects: Koolance VL3 Series

They just arrived fresh from their washington office.

http://i24.photobucket.com/albums/c5...ity25/qdc4.jpg

Without QDC
http://i24.photobucket.com/albums/c5...ity25/qdc0.jpg

With one set of QDC(male+female)
http://i24.photobucket.com/albums/c5...ity25/qdc1.jpg

With two sets of QDC(male+female)
http://i24.photobucket.com/albums/c5...ity25/qdc2.jpg

enjoy :D
03-16-2009, 01:04 PM
Big Myke

I love my CPC 1/2'' quick disconnects. have you got any of those laying around to test?
03-16-2009, 01:08 PM
Hondacity

sadly nope...wish i had some...to test..and if they're really good.i'll keep em:up:
03-16-2009, 01:13 PM
Eddie3dfx

I'm going to be solely using these as a drain-fillport.
03-16-2009, 01:33 PM
Sadasius

Glad I kept those out of my loop. Was planning on using them at first but once I looked at it closely I put them in a box and kept them there. Could be useful as drain and fill ports but too much of a flow killer for anything else.
03-16-2009, 01:58 PM
MrToad

Please excuse my ignorance but... What's the unit of measure?
03-16-2009, 01:59 PM
Vapor

GPM on the left, l/min on the right.

Nice quick test there :) Mirrors my findings too, which makes me feel good :p:
03-16-2009, 02:03 PM
Nickel020

Should be GPM.

I have the Koolance VL3, the CPC for 3/8" ID (APC series?) and the 1/2" CPC NS6 series lying here. The Koolance are noticeably better than the 3/8" CPCs, but the 1/2" CPCs have a completely different construction, and I haven't tested those yet.

I'm gonna publish results flow for all of them once I get my proper rotameter, I currently have a Digmesa FHKUC but I noticed that the absolute value is not correct, and I'm not sure whether the relative values are correct either.
03-16-2009, 02:09 PM
Hondacity

Quote:

Originally Posted by Vapor

GPM on the left, l/min on the right.

Nice quick test there :) Mirrors my findings too, which makes me feel good :p:

gooood to know:up:...it works ok with two pumps;)
03-16-2009, 02:15 PM
HESmelaugh

Thanks for testing!
I hope you get a chance to compare them to some CPC QDs, I'd love to see a comparison.

Let's see how's first, you or Nickel020. :D
03-16-2009, 02:22 PM
MrToad

Quote:

Originally Posted by Vapor

GPM on the left, l/min on the right.

Nice quick test there :) Mirrors my findings too, which makes me feel good :p:

Thanks :)

Got my wires crossed and though it was pressure, not flow LOL. No wonder I couldn't make sense of it...

0.25 GPM per pair it's a hell of a drop though... blimey!
03-16-2009, 02:23 PM
Hondacity

Quote:

Originally Posted by HESmelaugh

Thanks for testing!
I hope you get a chance to compare them to some CPC QDs, I'd love to see a comparison.

Let's see how's first, you or Nickel020. :D

i don't drive fast nor race, i cruise:D
03-16-2009, 02:45 PM
ecidious

If anyone is going to do a full comparison they should toss the VL4's into the running too :yepp:
03-16-2009, 02:54 PM
Nickel020

Quote:

Originally Posted by Hondacity

i don't drive fast nor race, i cruise:D

So do I, and I won't be rushed :p:

I can tell you tha using the FHKUC I measured 250 l/h for the Koolance and and 200 l/h for the CPC 3/8". I use the Koolance with a female-to-female G1/4 adapter so I can use any barb.
I don't trust the FHKUC fully though, I did some manual testing with a stopwatch and I found that while it showed a flowrate of about 178l/h I actually was getting more than 200 l/h (different pump and loop setup for this test). That's why I ordered a rotameter (swiss made :) ) and when I get that and find some time I'll do a 1/2" tubing comparison with thebig NS6 CPCs.
03-16-2009, 02:54 PM
Froggy

Those are the 3/8" ID right?
03-16-2009, 03:00 PM
Nickel020

Yes, they're a little more restrictive than 3/8" tubing though of course due to the shutoff mechanism.

Also, nothing beats the CPC NS6 1/2" shutoff mechanism, no water coming out at all when you open them :)
03-16-2009, 03:04 PM
hotdun

Quote:

Originally Posted by Hondacity

sadly nope...wish i had some...to test..and if they're really good.i'll keep em:up:

I have a ton and you could borrow whatever you needed for testing.
03-16-2009, 03:46 PM
NaeKuh

Quote:

Originally Posted by Nickel020

The Koolance are noticeably better than the 3/8" CPCs, but the 1/2" CPCs have a completely different construction, and I haven't tested those yet.

CPC's also come in 3/4 :rofl:

There big and ugly tho.

I have 6 unused right here.
03-16-2009, 03:58 PM
DeanB

1 Attachment(s)

Also keep in mind... if you'rel ooking for ultimate flowrate then these are the "mid-range"

Here's a list of all our shut-off valves and their flow-through ID
03-16-2009, 04:00 PM
NaeKuh

Dean i really wish you guys would make the VL4 with G1/4 threads so i can retire my VL3's.
03-16-2009, 04:17 PM
faster3200

Quote:

Originally Posted by NaeKuh

Dean i really wish you guys would make the VL4 with G1/4 threads so i can retire my VL3's.

QFT :up:. I think I remember hearing that they were being made, but I guess you would know better than I do.
03-16-2009, 04:19 PM
Nickel020

I don't understand that either. Why make them with different compression fittings and barbs attached to them, but not with a female G1/4 thread. That's the single biggest complain about the CPCs (not being able to use any barb you want) and it would be so easy to fix it for Koolance :(
03-16-2009, 05:18 PM
SAE

I vote for G1/4 female-threaded QDs (VL4) as well. :cool:
03-16-2009, 06:19 PM
DarthBeavis

VL4s in 3/8 ID 5/8 OD would be nice as well ;)
03-16-2009, 06:37 PM
migueld

Quote:

Originally Posted by DarthBeavis

VL4s in 3/8 ID 5/8 OD would be nice as well ;)

++ :)
03-16-2009, 06:43 PM
Hondacity

crap there's vl4s...:shakes:
03-16-2009, 07:31 PM
NaeKuh

Quote:

Originally Posted by Hondacity

crap there's vl4s...:shakes:

:rofl:
03-16-2009, 07:42 PM
hotdun

Good article on Colder NS6 flow rates. LINK
03-16-2009, 07:59 PM
NaeKuh

Quote:

Originally Posted by hotdun

Good article on Colder NS6 flow rates. LINK

Mine dont look like the NS6's.

As i said you can get a very large inner chamber version, only problems is its not threaded, and as i said it looks uber ugly:

http://i125.photobucket.com/albums/p...a/IMG_1321.jpg

http://i125.photobucket.com/albums/p...a/IMG_1322.jpg

http://i125.photobucket.com/albums/p...a/IMG_1323.jpg
03-16-2009, 08:07 PM
headala

so who has got VL4's??
03-16-2009, 10:58 PM
MpG

1 Attachment(s)

I've got one set of VL4's. Would have two sets, if P-PC's didn't screw my order up and send me two more females. :shakes: They're freakin' beasts. Like a big roll of nickels, and almost the same weight. Here's a side-by-side with a BP 1/2" fitting. :D

Edit: About 8.5cm long, when coupled like that. Although you need a couple extra cm to make room for them to be pulled apart.
Attachment 96469
03-16-2009, 11:08 PM
Froggy

That is BIG! What is the overall length of that Q/D?
03-17-2009, 05:42 AM
hotdun

Quote:

Originally Posted by NaeKuh

Mine dont look like the NS6's.

As i said you can get a very large inner chamber version, only problems is its not threaded, and as i said it looks uber ugly:

Those are the HFC12 series that have slightly better flow than the NS6 but are not as "non-spill" when de-coupled. I think they look OK panel mounted....
03-17-2009, 07:06 AM
DeanB

We didn't release VL4s with g1/4 treading initially because the largest ID g1/4 can handle is ~3/8 so it seemed a bit contradictory to put g1/4 thread on a 5/8 shutoff valve.

Would you prefer g3/8 threading on the shutoff valve if we made g3/8 to g1/4 adapter available, or just g1/4 on the nozzles even though it would reduce the performance?
03-17-2009, 07:22 AM
ecidious

Just about everyone here uses G1/4 and 1/2" to 3/8" ID tubing so g3/8 adapters would just add extra cost for users.
03-17-2009, 07:25 AM
DarthBeavis

Quote:

Originally Posted by [Koolance] Dean

We didn't release VL4s with g1/4 treading initially because the largest ID g1/4 can handle is ~3/8 so it seemed a bit contradictory to put g1/4 thread on a 5/8 shutoff valve.

Would you prefer g3/8 threading on the shutoff valve if we made g3/8 to g1/4 adapter available, or just g1/4 on the nozzles even though it would reduce the performance?

Dean do you have VL4s with 3/8,5/8 compression fittings (have not found them) as that solution would work for me . . . .and I will be needing it in a next couple months. If not then I need a threaded solution be it G 3/8 or G 1/4. Will you guys be able to help me in that time frame?
03-17-2009, 07:36 AM
DeanB

Quote:

Originally Posted by ecidious

Just about everyone here uses G1/4 and 1/2" to 3/8" ID tubing so g3/8 adapters would just add extra cost for users.

I understand... but its like putting 1" exhaust on a 5.0. :confused: We can do it and we may, but it kind of confuses me personally.

Quote:

Originally Posted by DarthBeavis

Dean do you have VL4s with 3/8,5/8 compression fittings (have not found them) as that solution would work for me . . . .and I will be needing it in a next couple months. If not then I need a threaded solution be it G 3/8 or G 1/4. Will you guys be able to help me in that time frame?

I don't think 3/8ID VL4s will be available. If you're using 3/8 then you should see little to no restriction with the VL3s. I would bet that we will have some kind of threaded option available within the next couple months. :)
03-17-2009, 07:38 AM
DarthBeavis

Quote:

Originally Posted by [Koolance] Dean

I understand... but its like putting 1" exhaust on a 5.0. :confused: We can do it and we may, but it kind of confuses me personally.

I don't think 3/8ID VL4s will be available. If you're using 3/8 then you should see little to no restriction with the VL3s. I would bet that we will have some kind of threaded option available within the next couple months. :)

please send me some samples to beta test ;)
03-17-2009, 08:19 AM
Capt Proton

Quote:

Originally Posted by [Koolance] Dean

I don't think 3/8ID VL4s will be available. If you're using 3/8 then you should see little to no restriction with the VL3s.

If this is true, how do you explain the results Hondacity posted in the first post of this thread? .5 GPM for a pair, which is what the vast majority of people would be using, is not "little to no restriction"
03-17-2009, 08:47 AM
SNiiPE_DoGG

Quote:

Originally Posted by DarthBeavis

VL4s in 3/8 ID 5/8 OD would be nice as well ;)

+2 I only use 3/8 - 5/8" tubing nowadays.

EDIT- yeah I want threaded either way so threaded VL3's would be nice I guess
03-17-2009, 08:56 AM
NaeKuh

Quote:

Originally Posted by [Koolance] Dean

We didn't release VL4s with g1/4 treading initially because the largest ID g1/4 can handle is ~3/8 so it seemed a bit contradictory to put g1/4 thread on a 5/8 shutoff valve.

Would you prefer g3/8 threading on the shutoff valve if we made g3/8 to g1/4 adapter available, or just g1/4 on the nozzles even though it would reduce the performance?

we can use bitspower couplers to make G3/8 -> G1/4 :D
03-17-2009, 08:59 AM
DeanB

Quote:

Originally Posted by Capt Proton

If this is true, how do you explain the results Hondacity posted in the first post of this thread? .5 GPM for a pair, which is what the vast majority of people would be using, is not "little to no restriction"

The test was most likely done with 1/2" tubing and fittings, and the VL3s are rated at a 3/8" flow through, so there would be a flowrate drop. But on a 3/8" loop the drop should be minimal.
03-17-2009, 09:02 AM
Capt Proton

Quote:

Originally Posted by [Koolance] Dean

The test was most likely done with 1/2" tubing and fittings, and the VL3s are rated at a 3/8" flow through, so there would be a flowrate drop. But on a 3/8" loop the drop should be minimal.

Hondacity? Did you use 1/2" tubing? Hope so. I have a set of these VL3s on the way to replace my VL2s. Sure would be nice if they prove to be substantially better.
03-17-2009, 09:46 AM
Nickel020

Quote:

Originally Posted by [Koolance] Dean

I understand... but its like putting 1" exhaust on a 5.0. :confused: We can do it and we may, but it kind of confuses me personally.

By offering them with the compression fittings attached alread aren't you doing the same thing? Don't the compression fitting get narrower than 1/2" ID themselves?

Also, it's not the smallest diameter that defines flow rate by temselves, but for how long water has to flow through small diameters which defines how much pressure drop there is.
So even if the fitting has a lower diameter than the QD, the larger ID on the QD will still help flow, especially since the QD does have more restriction than a comparable piece of tubing with the same diameter (due to the QD having a shutoff mechanism which hinders flow). So even though the ID of the VL4 is 1/2" it's still not the same as havin a comparable piece of tubing in there, it will cause about the same pressure drop as putting a piece of 3/8"-7/16" tubing inside a loop that otherwise uses 1/2" tubing. So the ID of the QD would have to be even larger than the tubing for it to not cause a pressure drop (compared to a piece of tubing ofequal length).

PS: I like the VL3s very much and if you decide to make VL4s with female G1/4 threading you can be sure that I'm gonna buy them, and I bet a lot of other people will too. In fact, I'm pretty sure that those will sell better than any other of your quick disconnects. People have always been complaining that there are no good QDs with female G1/4 threading, and if the best QDs (pressure drop wise) out there would be available with G1/4 threading no one would buy NS6 CPCs anymore.
03-17-2009, 10:15 AM
DeanB

Quote:

Originally Posted by Nickel020

By offering them with the compression fittings attached alread aren't you doing the same thing? Don't the compression fitting get narrower than 1/2" ID themselves?

Also, it's not the smallest diameter that defines flow rate by temselves, but for how long water has to flow through small diameters which defines how much pressure drop there is.
So even if the fitting has a lower diameter than the QD, the larger ID on the QD will still help flow, especially since the QD does have more restriction than a comparable piece of tubing with the same diameter (due to the QD having a shutoff mechanism which hinders flow). So even though the ID of the VL4 is 1/2" it's still not the same as havin a comparable piece of tubing in there, it will cause about the same pressure drop as putting a piece of 3/8"-7/16" tubing inside a loop that otherwise uses 1/2" tubing. So the ID of the QD would have to be even larger than the tubing for it to not cause a pressure drop (compared to a piece of tubing ofequal length).

PS: I like the VL3s very much and if you decide to make VL4s with female G1/4 threading you can be sure that I'm gonna buy them, and I bet a lot of other people will too. In fact, I'm pretty sure that those will sell better than any other of your quick disconnects. People have always been complaining that there are no good QDs with female G1/4 threading, and if the best QDs (pressure drop wise) out there would be available with G1/4 threading no one would buy NS6 CPCs anymore.

No, in the case of the 1/2" VL4s, the 1/2" nozzle is the smallest portion. Yes the QDC mechanism would cause a drop in flow rate, but the actual ID is no smaller than 1/2".

I'll see what kind of information I can get for the VL4s for you.
03-17-2009, 10:21 AM
NaeKuh

wahahaha... look at the Quick Discconect fever i caused on this forum.
04-28-2009, 06:57 AM
veedubfreak

I'll be putting a pair of vl4s on each of my loops over the weekend when i switch back to my evga board. The only issue i have noticed is that even though i can get the tubing over the 1/2" barb, the tube is too thin walled for the compression cap to actually work, so i'll end up having to use clamps. I'm using 7/16ID/5/8OD masterklear tubing.