The impact of tubing sizes

thanks for taking the time

i will certainly not change my 3/8" fittings to 1/2" after seeing this thread

i have a similar setup with DDC-2 and also a GPU block (MCW60) in the loop :)

3/8" tubing is easier to maneuver around that's for sure

STICKY!!!!, amazing information, great read and teaches you a lot about system flow rates :D

STICKY STICKY STICKY!!!

it's good to see some real numbers attached to things like this. thanks for the informative post :)

Great post and great timing for me - keep the information coming.

I couldn't agree more 1Day.

Now I can see more and more why Cathar's name is attatched to EVERYTHING that I've learned in the last 2 month's of endless hours of research into WC. Simply awesome work. Thanks for the time you've put into it.

Sticky +1

Thanks Cathar, even I can understand it all now :clap: :up:


All I need now is to work out how I'm going to change from 1/2" to 3/8" with my Silverprop Fusion Cyclone HL GPU block that comes with 1/2" std

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Originally Posted by ColonelCain

Great guide cathar. This outta settle anyone who comes asking "What size tubing should I get?".

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Yes now we can simply point to this and say use whatever tube size you might want to use considering the pluses and minuses of your choice in tube size. If 1/2 degree C is important, now you can make an informed choice in the matter. :)

lol... too bad theres no way to put a 3/8 fitting on my RD-30.

The quick drop fittigns would make looping one hell of an easy task.

I think my next quadcore will be on 3/8ID after reading this thread. 3/8 is seriously a lot easier to work with.

Great work as always Cathar! Guess now I'd better go revamp some kit specs :D

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g 1/4 and g 3/8 push style fittings - hmmmm.

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G3/8" - scrolly down - http://www.thermochill.com/acatalog/...cessories.html

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Originally Posted by alpha0ne

Thanks Cathar, even I can understand it all now :clap: :up:


All I need now is to work out how I'm going to change from 1/2" to 3/8" with my Silverprop Fusion Cyclone HL GPU block that comes with 1/2" std

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1/2" to 3/8" converter

Stew i posted the info at OCAU

i hope you don't mind

http://forums.overclockers.com.au/sh...=1#post7409651

i rehosted the images on imageshack though

Thanks Cathar, your the mf'n man!!!

Good work, thanks! :clap:

Wouldn't the thin walls of 3/8" ID and 1/2" OD -> 1/8" thickness ? cause the tubing to collapse like there's no tomorrow?

I appreciate the fervour, but this reminds me of the faithful in a Masdarah in Islamabad (yes, I have been to Pakistan, and that's probably why I'm so militant), after the Grand Imam/Mullah/Sahib/Ayatollah has spoken.

Reference St. Gobain:

Tygon R-3603 3/8" ID 9/16" OD has a minimum bend radius of 1-3/8"

http://tygon.com/media/documents/S00...3/tygr3603.pdf

Tygon R-3603 3/8" ID 1/2" OD has a wall thickness of 1/16" and has a minimum bend radius of 1-1/2"

Where's this magical tubing that has a 1 inch bend radius ?

{Edit} I see.. 5/6" ID 1/2" OD has a 1 inch bend radius.. so the rage now is to use 5/16" ID (close to 1/4" ID) tubing ?

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Originally Posted by IanY

Where's this magical tubing that has a 1 inch bend radius ?

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What about quartzglass from here for example :D IIRC it's only few thousands per kilo plus hours :p:

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Originally Posted by IanY

Where's this magical tubing that has a 1 inch bend radius ?

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Originally Posted by Cathar

Caveat: Where very tight radii are needed, can use 5/16" ID tubing instead for those short sections. 5/16"ID|1/2"OD tubing has a 1" bend radius.

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(sigh)

If you're looking to make an arse of yourself, at least try to pull your head out far enough to allow yourself to read. Look at item AA00023. Is that, perchance, the "magical" tubing that I exactly described, and has the "magical" properties you so sarcastically suggested did not exist?

Run along now troll. Yes, that is the echoes of laughter following you. No, don't worry. You'll get over it one day.

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Originally Posted by Cathar

(sigh)

If you're looking to make an arse of yourself, at least try to pull your head out far enough to allow yourself to read. Look at item AA00023. Is that, perchance, the "magical" tubing that I exactly described, and has the "magical" properties you so sarcastically suggested did not exist?

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Hey.. so the rage now is to use ultra small diameter tubing.

Listen, I did not call you names, and there is no need for you to call me names. I am not about to engage in your little boy antics.. which are incidently against forum rules as well.

I asked a question, and you provided an answer. I have no idea how 5/16" ID tubing fits into the equation, but oh well.

If you say so, then it is gospel I suppose.

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Originally Posted by IanY

Listen, I did not call you names, and there is no need for you to call me names. I am not about to engage in your little boy antics.. which are incidently against forum rules as well.

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Face it. You're just cranky 'cos after 2000+ posts of getting up everyone's noses, you never once posted anything really informational. Just hot air and chest beating attitude. Someone comes along and shows you how it's done, and now you're all bitter. Once again you have cast the first stone in name-calling by offensively implying that everyone is just a pack of religious followers, yet you then try to hold your hands up and claim that you don't engage in little boy antics.

I say to you quite truly: "Grow up!"

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Originally Posted by Cathar

You push the tubing into a hole. There is a collet lock that surrounds and grips the tubing so you can't pull the tubing out unless you release the collet lock, and an O-ring that squishes between the inside of the hole and the outside of the tubing, creating a seal.

What makes push-fit fittings so good is that there's nothing blocking the entrance/exit of the tubing. It's not like tubing squished over a barb where the liquid has to squish through the smaller barb orifice. With push-fit/quick-fit fittings there's nothing obstructing the flow at all.

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Cathar, the push-fit or Plug&Cool aren't to my knowledge all round on the interior.
For example the Legris LF3000 (used in Europe), are hexagonal on the inside, and still cause a restriction.
The g1/4 BSPP for 10/8 tubing push-fit is 7mm at the end, and as you move to bigger tubing, say 3/8 or 1/2, the difference between tubing diameter and the push-fit is bigger, because it still is 7mm at the end.
The only way to make them equal to the tubing inner diameter is to ream (porting) them.
Being the case, the only tubing diameter that makes sense and can truly match the diameters of the tubing with the diameter of the push-fit is the 5/16 or 8mm ID.
Then as you have to use rigid tubing, you can't use the softer Tygon, due to the differences in the wall thickness.
You can still use Tygon and Push-fit with a barbed connector, but in this case if you use the barbed connector below, as Swiftech you still have a restriction, because it's just a barb with all the inconveniences it has.
http://www.legris.com/legris_com/ima...itBM/P3122.jpg
Finally if you use the tube inserts, there's also a restriction.

Edit: You might have a look upon the Jonh Guest parts , altough I don't know if they have the same characteristics as the Legris parts.

Absolutely superb information Cathar- Your methodology is second to none. I think that everyone needs to have a look at this information.

The difference between 7/16 and 1/2 was interesting, considering it was so small. Then again, there is a 1/16" difference between ID's. I think that the differences might be a bit more noticeable if you were to add, say, a MCW30 chipset block and any GPU block, be it full-cover or otherwise. What say you?

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Originally Posted by Cathar

Face it. You're just cranky 'cos after 2000+ posts of getting up everyone's noses, you never once posted anything really informational. Just hot air and chest beating attitude. Someone comes along and shows you how it's done, and now you're all bitter. Once again you have cast the first stone in name-calling by offensively implying that everyone is just a pack of religious followers, yet you then try to hold your hands up and claim that you don't engage in little boy antics.

I say to you quite truly: "Grow up!"

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Hallelujah! Thank God I don't derive my self esteem from knowledge about water cooling on some internet forum ! Me cranky about not posting information? You are right. I have no information to share, because I have no such knowledge. Thank God.

You seem to take much joy in throwing stones.. I hope you don't live in a glass house.

Nice one Stew.

So just pure simpely in your own words which size is the best to have these days?

Hope your doing okay still after your crash too

Pete

IanY there are just some things you learn after you spend 5 minutes on this forum. For example, you don't disagree with Hipro5, OPB, Bigtoe, or Eva2000 when it comes to RAM. You don't disagree with Chilly1, PC Ice, or jinu when it comes to phase change. You don't disagree with k|ngp|n, Kinc, Sampsa, Lardarse, or OPPAINTER when it comes to 3D benching. And you sure as hell don't disagree with Cathar when it comes to water cooling. (or Maxxx or Marci for that matter)