90 degree barbs

[Th3 F4ll3n P1mp]

Good or bad? I want to put them on my radiator so I can chop off a crapload of tubing. Some guy from xs has the same case and same radiator in same position with the 90 degree barbs and they fit through the pre-drilled holes in the case. What do you guys think? Im tempted to buy them.

[WarriorII]

You gotta do, what you gotta do to make it work FOR YOU.

90 turns restrict flow.

Any chance on using 2 45s? :eek:

[Th3 F4ll3n P1mp]

I think that would be possible. Thanks for the help.

[saxile]

90's don't restrict as much as people think, maybe .01 drop in flow rate, use em I say, I run 4 elbows plus the highest restriction nozzle on the fuzion and a fuzion gpu block

[voigts]

90's don't restrict as much as people think, maybe .01 drop in flow rate, use em I say, I run 4 elbows plus the highest restriction nozzle on the fuzion and a fuzion gpu block

It all depends on what kind of elbows you are talking about. The plastic elbows with hard 90 degrees are very restrictive. Copper elbows are not very restrictive at all as they have a smooth curve. If you need to use elbows, use copper elbows as in the kind you get in the plumbing section at any hardware store.

I use copper long sweep elbows from mcmaster which have hardly any difference at all from a tight vinyl tubing bend. Using them in certain key place however makes for much neater, tighter bends without torquing blocks and such like tight bends in vinyl tubing does.

For instance, coming in and out of my GPU using copper long sweep elbows allows for a tighter turn with very only minimal addition in restriction over vinyl and much less pressure on the block and card.

http://i5.photobucket.com/albums/y167/voigts/CustomWoodCaseIII/16apr08/RawTubing2.jpg

[saxile]

I use plastic ones myself, two on video and on the intakes of both heads of my pump

[voigts]

I use plastic ones myself, two on video and on the intakes of both heads of my pump

Elbows on the pump intake cause a serious flow hit. Do some searching around here and on XS and you'll see what I mean. The numbers speak for themselves.

[Th3 F4ll3n P1mp]

Heres the elbows I want to get. http://www.petrastechshop.com/3np1odthhoba1.html
Are there any elbows made out of metal that I can get from petra's?

[saxile]

It does affect it big time, but not really worried about it, I run a dual headed iwaki 220v pump still have over 2.5gpm flow rate, although before angles on intakes it was around 3.5

[Th3 F4ll3n P1mp]

Are there any good metal ones that dont restrict as much flow?

[4GHZ_or_bust]

AFAIK only copper and brass exists in that size range. If you were looking at 4" diameter plumbing there are steel elbows that can work but it's kinda big for any WC project.

Copper, brass, and plastic only in >1 inch range. ASnd all the brass fittings I've seen were about the same as plastic, none with nice curved elbows.

[Th3 F4ll3n P1mp]

Argh...Oh well, I am getting 90 degree plastics then.

[saxile]

they'll be fine, go look over at the water-cool 2008 guide at xs, stated right in it to use many elbows as you want that it doesn't restrict enough to be hugely noticible, only reason mine is, is beause they lead right into my pump intakes.

[Th3 F4ll3n P1mp]

Mine also lead to my pump intake, but theres still a decent length of tubing and a tline between it. Is that ok?

[saxile]

you would be better off pump to rad to blocks than rad to pump, you gotta remember the pump is also cooled by the water, granted you won't get that much heat from it, but still better imo to have the water at it's coolest point

[Th3 F4ll3n P1mp]

I have rad to tline to pump to block to rad. Not all that bad.

[saxile]

Yeah, you won't notice heat unless you're running a beast of a pump, but for what you're cooling, you won't even notice the 90's are on there

[Th3 F4ll3n P1mp]

Sweet, thanks man.

[Th3 F4ll3n P1mp]

Which do I need?

http://www.performance-pcs.com/catalog/index.php?main_page=product_info&cPath=59_346_343&products_id=21262
or
http://www.performance-pcs.com/catalog/index.php?main_page=product_info&cPath=59_346_343&products_id=20727

[Kilyin]

Are those 1/2" OD? Been debating ordering those and some tee fittings from mcmaster, what do you think is the max OD for 1/2 ID tubing?

It all depends on what kind of elbows you are talking about. The plastic elbows with hard 90 degrees are very restrictive. Copper elbows are not very restrictive at all as they have a smooth curve. If you need to use elbows, use copper elbows as in the kind you get in the plumbing section at any hardware store.

I use copper long sweep elbows from mcmaster which have hardly any difference at all from a tight vinyl tubing bend. Using them in certain key place however makes for much neater, tighter bends without torquing blocks and such like tight bends in vinyl tubing does.

For instance, coming in and out of my GPU using copper long sweep elbows allows for a tighter turn with very only minimal addition in restriction over vinyl and much less pressure on the block and card.

[4GHZ_or_bust]

I've seen 1/2 ID tube with 5/8 OD but that is fairly thin (1/8 in wall) and kinks very easily especially when warmed up. If you're getting tube that thin, you'd need to have springs installed to keep the tube from kinking.

[Fx-53]

what about these (http://www.dangerden.com/store/product.php?productid=259&cat=95&page=1)

[Th3 F4ll3n P1mp]

Nty, thats a little too expensive. My question was if I needed BPST or NPT threads.

[saxile]

NPT I believe is the correct one, but if I remember correctly both work fine, but someone correct me if I'm wrong please

[Th3 F4ll3n P1mp]

Whats the difference between the two?

[Kilyin]

BPST and NPT are very similar, but they differ in two ways, the angle the threads are cut in are off by 5 degrees, also BPST has rounded thread peaks, while NPT has flat peaks. The O.D. and thread pitch are the same tho.

[Th3 F4ll3n P1mp]

Which should I use on the radiator that comes with a swiftech water kit?

[Kilyin]

Which should I use on the radiator that comes with a swiftech water kit?

1/4" NPSM Threaded hubs are compatible with 1/4" BSPP and G1/4 fittings.

[Th3 F4ll3n P1mp]

Oh, ok, thanks.

[Th3 F4ll3n P1mp]

Just to be 100% sure before I buy, these will work with my radiator, right?
I have an mcr-220 radiator.
http://www.moddersmart.com/index.php?target=products&product_id=30369
Or is it these?
http://www.moddersmart.com/index.php?target=products&product_id=427

[saxile]

Just to be 100% sure before I buy, these will work with my radiator, right?
I have an mcr-220 radiator.
http://www.moddersmart.com/index.php?target=products&product_id=30369
Or is it these?
http://www.moddersmart.com/index.php?target=products&product_id=427

use either or, both fit.

[Th3 F4ll3n P1mp]

Cool, just checking to be sure lol. Thanks sax.