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Fittings: Compression vs Plug n'Cool

M

Momo

Gawd
Joined
Mar 3, 2005
Messages
869
Hello people! quick poll here....

Do you prefer Compression fittings, or Plug n'Cool style quick connect/disconnects?

I want reliable fittings, that are _easy_ to connect and disconnect.

After reading the [H]ard review of the Exos2 on the front page, I'm leaning away from using compression fittings. Sounds like you had a bitch of a time with 'em Kyle :eek:
I'd like to avoid that fun :p

... As an afterthought, would you say that a Plug n'Cool fitting is as reliable in terms of leak resistance as a compression fitting?

Have a good day people!

EDIT:
I'm a little confused...
if the tygon tubing i bought is 3/8"ID x 1/2"OD, it should work with one of these Plug n' Cool fittings right? The only problem is, I'm pretty darn sure that the walls of the tubing I have at home are more than 1/16" thick. I'd say they are 1/8" thick. That would make it 3/8"ID x 5/8"OD ... is that size of Tygon available ?
 
go with pushin fittings, iam looking at the legris fitting which are the best.

Compression fitting are as good but very fiddly as they require an olive and also need to be tightened with a spanner. I saw somewhare that the tubing needs a slight taper aswell, too much hassle if you ask me.

As for tubing go with what legris recommends as these fittings have very strict tubing requirements (size, wall thickness, material and how rigid it is). Ive sent an email to legris regarding the use of tygon tubbing as iam all most certain you will have to use ferrules (to prevent the tubing from callapsing and to make the seal have good contact with the tube).

Iam probably gona go for the LF3600 (NICKEL-PLATED BRASS) fittings for G threads and LF3800 (STAINLESS STEEL) for NPT threads.
 
Thanks for your reply man.

Still wondering if there's a Plug N' Cool fitting that will work with my tubing.

Also, can you please post the info you get from legris here, re: use of Tygon with their fittings?

Thanks again.

EDIT: Added thoughts below.

I think it might be easier for me to simply switch this setup to 8mm(1/4")ID tubing instead of 10mm(3/8")ID.

my only questions for Top Nurse, the one who suggested that in another thread is... will 8mm ID tubing work fine with the components listed below?

BlackIce Extreme III Rad
AquagraFX 6800 rev 2
Laing D4 pump (or Hydor L25.But i'd prefer the D4, as it's 12v already)
Cuplex-XT
and a 5 1/4" bay-Res ...

I totally don't want to buy new tubing, but like i said above. it looks like that's going to be the simplest solution, as Sharkacomputers will have the plug N' Cool fittings that would be required, for sure. (now, or soon)

Thanks for letting me pick your brains! ;)
 
Well I think push fit fittings are probably better than compression fittings in ease of use. But the compression fittings are smaller and typically look better IMHO and of course less things to go wrong. With compression fittings you do not have to put a taper on the tube nor do you have to use a wrench to tighten them. That is why they come with a knurled surface...so you can tighten them with your fingers.

However, a common saying from the 70's comes to mind. Hardware without software might as well be a boat anchor. ;) So you just go with the connectors and tubing that you need to fit your hardware :D
 
What you said brings to mind something i heard from Wes at sharka...

we're dealing with relatively low PSI in these setups ... he said that the compression fittings etc. need only be finger tight, as you said just now. Anything more is way overkill.

so ... what was with Kyle's comments about pliers being needed to remove a fitting on that Exos-2, and them being a total pain? Wouldnt it just be a matter of un-screwing the compression fitting, and pulling the tubing off/out? *shrugs* to be honest, I've never used one, so i'm asking.

Thanks again, you two.
 
I will let you know when I actually see an EXOS II, but since it's pricing was what got me interested in A-C gear I don't think that will happen anytime soon. :rolleyes:

I have never had to use a wrench on a compression fitting as they just work fine. The push-fits also work fine. I think a push-fit is good up to about 200-300 PSI (depending on manufacturer and material) which you will never get to in a H20 cooled system.
 
I hear ya TN. Those things are way too expensive :rolleyes:

I'm gonna look into my tubing situation. I'm about 95% sure i've got 3/8"ID x 5/8"OD Tygon... not 1/2"OD. It's got 1/8" thick walls.

I'll measure when I get home, and go from there.

Keeping in mind the whole 'easy does it' with compression fittings, I think I have a more clear idea of which way to go, now. Thanks :)

Now, to get a list together, for ALL the correct fittings required, for all them different German, Asian, and North American parts to work together :)
 
Yup, my tubing is 3/8" ID x 5/8" OD ... oh joy. This should be fun, finding compression fittings that will work :(

Would these fittings work with my tubing? 1/16" sure isnt very much... Anyone happen to know for sure?
 
Momo said:
Hello people! quick poll here....
Do you prefer Compression fittings, or Plug n'Cool style quick connect/disconnects?
I want reliable fittings, that are _easy_ to connect and disconnect.
Click to expand...

Since I work in the painting-shop of a carplant,( and have a sh*t-load of fitting material at my disposal)
I used push-in fitting for my WC-setup.
Easy to install,adjust,replace, 100% leakproof up to 8 bars. They are the BEST fittings.

I would recommend it to everybody who wants to build a safe rig.

and since my rig is running 24/7 ;)

Grtz
 
Hrm, Would these fittings work with my tubing? 1/16" sure isnt very much... Anyone happen to know for sure?

I've yet to see a push-in fitting that would accept my tubing with the right thread(s)... i need some that are 1/4" and two that are 1/8" (for the AquagraFX 6800rev2)
 
Momo said:
Hrm, Would these fittings work with my tubing? 1/16" sure isnt very much... Anyone happen to know for sure?

I've yet to see a push-in fitting that would accept my tubing with the right thread(s)... i need some that are 1/4" and two that are 1/8" (for the AquagraFX 6800rev2)
Click to expand...
These fittings are the ones I use, they're the BEST. :D

Now you'll have an idea what to look for.
Trust me on this.The paint on a mercedes does look nice,no! Well it passes through those fittings. :cool:

Grtz
 
BTW, Sharka has a bunch of those Legris fittings coming in a few days. The easy way to handle this is to just e-mail Wes at Sharka and tell him what you want to do with what hardware and let him come up with what you need to do what you want. Make these guys work for you!
 
Lite_User said:
These fittings are the ones I use, they're the BEST. :D

Now you'll have an idea what to look for.
Trust me on this.The paint on a mercedes does look nice,no! Well it passes through those fittings. :cool:

Grtz
Click to expand...

Would any of these work with 1/2'' ID tubing? I want to find some disconnects so I dont need to buy the expensive things from colder...
 
I got my mcmaster order in, the 8mm od/6mm id fittings were the EXACT same things as the P&C metal fittings, even say 'Legris' on them. I also got some 12mm/10mm fittings and tubing to go from the res to the pump. The larger tubing does have a bigger bend radius but since I am going in a straight line for that section it is ok.

DarkenReaper57
You can get P&C fittings for 1/2 inch line but the bigger you go the more expensive they are. Also be aware that the bigger the hose you go the larger the bend radius is, P&C fittings do not like soft-wall tubing.

Some part #'s of the stuff I purchased:
Mcmaster # 5225K508 1/4" BSPP - 10mm/8mm Same as P&C Metal Straight ($3.53)
Mcmaster # 5225K507 1/8" BSPP - 10mm/8mm Same as P&C Metal Straight ($3.53)
Mcmaster # 5225K95 8mm Stopper Same as P&C BUT plastic&Red(0.98)
Mcmaster # 8156K32 1/4"BSPP Valve Need to put a fitting on each end (4.97)

Page 138/139 has the Legris fittings in NPT/BSPP/BSPT sizes along with metric and Inch hose sizes. I tried some of the Nylon11 tubing (50405K44 - 0.49/ft) and it seems a little more rigid then the P&C tubing but still workable. Only bad thing is only comes in black and white. Since I am doing all of my tubing in black this isnt a problem. Page 138 also lists what tubing types they have that are compatible with the fittings.
 
According to the legris parts the compression fittings require as I said before a taper end and an olive, ok but they can be tightened by hand.
 
kleox64 said:
According to the legris parts the compression fittings require as I said before a taper end and an olive, ok but they can be tightened by hand.
Click to expand...

Tapered end for what purpose? What is an "olive" ? Are you saying an O-ring?

Are you saying that the fitting itself has a tapered end? That is correct otherwise you would never be able to get the tube on. But the tube does not need to be tapered unless you are talking about stainless steel tubing?
 
Top Nurse, I sent Wes @ Sharka an email to the effect of "forget all the previous emails I've sent, here's what i've got: XYZ and here's what I want to get from you: ABC. Can we make this work?"
straight forward and to the point :) Hopefully, he can help me out.
 
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