This Stuff really useful as claimed?

[Royteane]

http://www.alphacool.com/product_inf...ter---Set.html

To enable using higher flow G3/8 fitting on G1/4 slot, but I think it is a G1/4 fitting itself.

[Tackleberry]

I would check on that with Mr. Bernoulli to gain all aspects of products's physics.

[Utnorris]

Not sure how it can increase the flow if the port you are adapting is still a G 1/4" port. Also, even if by some magic it was able to increase the width of the opening, I doubt it would increase flow by much, at least not enough to make a difference.

[Conumdrum]

Can I just say the marketer who wrote that needs a raise. Hopefully not pegged to the increased sale rate of the fitting.

Amazing writing, into the cloud!

Lets just call it a reducer.

Thats a great post OP, thanks, too funny.

[Kurz]

Flow no... Velocity I can see it increasing though you would only want one on a Block.

[SNiiPE_DoGG]

This is not going to raise flow at all, waste of money.

[eXa]

I think the point is to be able to use bigger fittings and then bigger tubing.
Since the difference in flow from 7/16" tubing to 1/2" tubing is very small, much less than from 3/8 to 7/16, going even bigger than 1/2 tubing wouldnt gain you much.
Only scenario i might see this useful is if you run some external rad/res far away from the computer itself and want to use bigger than 1/2" tubing for that. Still i might solve the reduction from bigger than 1/2" external tubing to 7/16" internal tubing another way. (but more options is always welcome)

[jcrouse]

Since the difference in flow from 7/16" tubing to 1/2" tubing is very small, much less than from 3/8 to 7/16

Me thinks somebody needs a basic math class.



John

[defect9]

It's also not like that's the area of the loop with the worst restriction. (this goes without saying, but...) Choosing the right blocks and radiator will likely make a larger impact on flow.

[eXa]

Me thinks somebody needs a basic math class.



John

huh? Where did i fail? English is not my naitive language, maybe i expressed myself wrong?

[PiLsY]

@ defect9 : Wrong - tubing is the greatest cause of restriction in your loop.


However this POS will do sweet f*ck all for your loop .

[theseeker]

Snake-oil.........

[eXa]

Wrong - tubing is the greatest cause of restriction in your loop. However this POS will do sweet f*ck all for your flow .

I never said that the tubing is the greatest cause of restriction, far from it. But everything in your loop have SOME restriction. Smaller tubing have more restriction than bigger tubing.

This item would allow you to use even bigger than 1/2" tubing (if i havent misunderstood the product completely).
Problem is that 1/2 tubing already have so little resistance that going even bigger wont net you any noticable improvment.

The ONLY way i see this MIGHT beeing useful is if you run something external and need to use really long tubing (30 feet+), but i dont know. Its just a guess.

[jcrouse]

huh? Where did i fail? English is not my naitive language, maybe i expressed myself wrong?

Nah, I would never pick on a foreigner for attempting to speak English. My wife speaks Spanish (from Mexico) and I have taken classes in a foreign language. It is freakin difficult.

Anyways, it was your math. The difference between bot sets of numbers 1/2 and 7/16 and 7/16 and 3/8 is equal to 1/16. Hence, based on the formula to calculate the area of a circle, R*R*3.14159, the larger set of numbers MUST have a greater difference, hence less restriction.

Hope that makes sense. If no, fire up excel. you'll figure it out.

Class is over,
John

[eXa]

My "math" isnt based on math at all(!)
Its based on some previous testing on the impact of flow, done with 3/8 tubing, 7/16 tubing and 1/2 tubing. 7/16 was closer to 1/2 than to 3/8.
http://www.xtremesystems.org/forums/...d.php?t=147767

[BeepBeep2]

eXa you originally said 7/16 to 1/2 difference was smaller than the difference from 3/8 to 7/16...each is 1/16th inch
I think you meant 7/16th to 1/2 difference is smaller than 3/8th to 1/2 Even though I do believe there is a curve involved

[eXa]

No, i mean what i said. I think i just need to specify what i meant. The increase in flow rate in a typical loop in a wc system is smaller going from 7/16 to 1/2, than it is going from 3/8 to 7/16. Diminishing returns....

[Sparky]

Nah, I would never pick on a foreigner for attempting to speak English. My wife speaks Spanish (from Mexico) and I have taken classes in a foreign language. It is freakin difficult.

Anyways, it was your math. The difference between bot sets of numbers 1/2 and 7/16 and 7/16 and 3/8 is equal to 1/16. Hence, based on the formula to calculate the area of a circle, R*R*3.14159, the larger set of numbers MUST have a greater difference, hence less restriction.

Hope that makes sense. If no, fire up excel. you'll figure it out.

Class is over,
John

He's not talking about the physical size of tubing, but rather the difference in flow. You gain more flow from 3/8" to 7/16" than you gain from 7/16" to 1/2". So it stands to reason that you'd gain even less moving up from 1/2".

[eXa]

Yeah, what Sparky said.

[PiLsY]

Sorry eXa my post was pointed at Defect9, not you . Edited it...

[jcrouse]

He's not talking about the physical size of tubing, but rather the difference in flow. You gain more flow from 3/8" to 7/16" than you gain from 7/16" to 1/2". So it stands to reason that you'd gain even less moving up from 1/2".

Could you prove that? To me, flow means volume per a specific time and volume means are, of course given pressure is equal.

John

[relttem]

flow = Q = velocity*cross-sectional Area = V*A, so if you change the cross-sectional area, A, your V will change..that is if the flow rate stays the same.

[jcrouse]

flow = Q = velocity*cross-sectional Area = V*A, so if you change the cross-sectional area, A, your V will change..that is if the flow rate stays the same.

Well then, as i stated, a key component is area. There is simply a larger area in the difference between 7/16 dia. and 1/2 dia. than there is between 3/8 dia. and 7/16 dia., period.

[relttem]

yup, that is why 'fluid dynamics' rocks..

I think what they are trying to claim is that by changing to their fitting thing your pressure drop will change, which will allow for a higher flow rate..how much higher is the question.

[Sparky]

Could you prove that? To me, flow means volume per a specific time and volume means are, of course given pressure is equal.

John

But pressure isn't equal. You reduce pressure in the tubing that has a larger diameter. Plus the pump hasn't changed, so you are working within its capabilities as well. So nothing is really a constant to rely on for any comparisons.

Hey, I'm not a fluid scientist, I just know what the tests show