3/8 or 1/2 fittings for DD-Maze2 waterblock? And why?

[Michael_Myers]

I am going to order the DD-Maze2 waterblock for my Duron 800 and was wondering what size fittings to get. And why? What's the difference?

Some specs to help you determine:
KT7a MOBO......
Mid tower case. (ATX of course)

Also.....Could someone point me to a radiator that is small enough to fit a mid tower case, but good enough to do the job? Thanks.

 

[Badger]

If your using 3/8" tube get 3/8" fittings, if your using 1/2" tube get 1/2" fittings.
The advantage of the larger tube and fittings is it gives less pressure drop so you get higher flow rates but there is no advantage in using 1/2" fittings if all your tube is only 3/8".

 

[AMDGuy]

I'd get 3/8" as most pumps are 3/8" fittings. You'll have to do a lot of fabricating OR try to find a pump that has 1/2" fittings.

I used 3/8" and it works great.

 

[William]

most watercooling stuff is built on 3/8" tubing so i would get that.

 

[Flash]

It's definitely possible to do 1/2" accross the board, but there's no point in getting 1/2" if you have 3/8" fittings *anywhere* in your system--you won't see any improvement.

BTW, Danner pumps use 1/2 fittings (which must be added). I don't recommend them because they leak.

 

[Badger]

AMDGuy (Jul 25, 2001 03:24 p.m.):
I'd get 3/8" as most pumps are 3/8" fittings. You'll have to do a lot of fabricating OR try to find a pump that has 1/2" fittings.

I used 3/8" and it works great.

Actually pumps with 1/2" outlets are not hard to come by, the Ehiem 1250 has a 1/2" outlet and a 5/8" inlet.
I'm using 1/2" tubing and fittings on the pump discharge and 5/8" tube from the rad to the pump suction. Swaging down on pump inlet and outlet sizes (especially the inlet) has a big impact on flow rate and can cause pump cavitation.

 

[JaY_III]

400 GPh pump and 1/2 fittings the only way to go love my pump....
seriously though, get the pump first and find out what fits.
that will be your best option

 

[ap0calyps]

400GPH eh??? Pretty useless when your limited by the 1/4" water way in the Danger Den Maze 2 blocks. Or if your lucky and get a new one you will be limited by the 3/8" path in the new block.

I would go with 1/2" then there is more pressure at the block to force water through. I have 3/8" at the moment but am planning an upgrade to 1/2".