swiftech GTZ/feser 1/2"id 3/4"od o ring question

[freshy]

Hi all,

just a quick question, just doing my i7 build, and i have just gotten my gtz, mount and i also got 2 Feser Compression Fitting G1/4 Thread - 1/2in ID - 3/4in OD

i read somewhere that martin said we should put an extra o ring on each compression fitting, so 2 o rings on each fitting,

is that right or is 1 o ring as they come ok ?

thanks all, sorry for the stupid question

[rootz0r]

I replaced them with the O-rings that came with the GTZ, worked fine for me.

[freshy]

i did notice that the o rings on the barbs that came with the gtz are thicker than the ones that come with the feser compression fittings ,

if no one else suggests anything else il just do that then

[shazza]

I believe the recommendations for the extra O-ring was for the Bitspower compression fittings ... not sure if the Feser fittings are the same. I'd definitely change the O-ring to the thicker one ... try that and leak test it, if it works, then good to go.

[BlueAqua]

If the thicker O-ring will seal well than that would be preferred, however I just doubled up my O-rings and I thought that was pretty good. I don't know why they have a recessed lip but it makes it more challenging for fitting a variety of barbs. With a single O-ring I noticed that the fitting was making it's seal with the plastic, and not through the O-ring.

[Cralle!]

I acctually used the swiftech O-rings and the feser Orings on my GTZ!

A little hard to get 2 of em on but it´s supersealed

[TedShred]

Wow, I'd never heard that.

I tried searching but couldn't find anything. So one runs the risk of leaks unless they replace the stock o-ring that comes with bitspower compression fittings?

Me, rather unpleasantly, surprised here. But, I still have to get most of my fittings so that's good info to know.

- is this just with the GTZ? (Got one being shipped to me atm)

edit: sorry for the derail from feser to a bitspower question. I get easily shocked before my morning coffee fill.

[cdnbum88]

I used my Feser compression fittings without issue and did not use the any additional rings.

[alejo]

Another solution might be to use BP's g 1/4 extender. The o-ring looks fatter than the recessed o-rings on their comp. fittings. I ordered some, but don't have a GTZ. I did have a Cu GTX though and that had the same problem that the GTZ seems to have with respect to compression fittings. I solved that with BPs NPSM/BSPP adapter. I still have my Storm and back in the day you had double up on o-rings if you wanted to use EK barbs. I'll try the extenders on that.

[MpG]

I acctually used the swiftech O-rings and the feser Orings on my GTZ!

A little hard to get 2 of em on but it´s supersealed

Urgh. Double o-rings make me nervous. Very easy for them to slip inside or outside of each other, ruining the seal.

[TedShred]

ok, found Martin's test thread

http://www.xtremesystems.org/forums/...&highlight=gtz

I'm breathing a little easier that he didn't think there were any worries doubling up on the o-rings. (post #85)

[silverphoenix]

I had to double up on my GTX when I used koolance compression fittings, it's due to swiftech's fittings not having an O-ring trap so it's built into the block instead, which is great, but when both the block and barb have it the o-ring doesn't get good compression with small O-rings.

The expensive solution is this

http://www.sidewindercomputers.com/bi14nptog14s.html

it doesn't enclose the O-ring letting it really get pushed into the little space in the block.

the cheap is of course to double up on O-rings so they squash each other

[Waterlogged]

I had to double up on my GTX when I used koolance compression fittings, it's due to swiftech's fittings not having an O-ring trap so it's built into the block instead, which is great, but when both the block and barb have it the o-ring doesn't get good compression with small O-rings.

+1

The expensive solution is this

http://www.sidewindercomputers.com/bi14nptog14s.html

it doesn't enclose the O-ring letting it really get pushed into the little space in the block.

the cheap is of course to double up on O-rings so they squash each other

The problem with that is...Swiftech doesn't use 1/4" NPSM threads on the GTZ, they are G1/4" now. If you don't feel comfortable doubling up on the O-Ring or replacing it with the Swiftech one, there is this.

[silverphoenix]

+1



The problem with that is...Swiftech doesn't use 1/4" NPSM threads on the GTZ, they are G1/4" now. If you don't feel comfortable doubling up on the O-Ring or replacing it with the Swiftech one, there is this.

I'm sure the NPSM would still work, people have been using the older swiftech's with NPSM and G1/4 interchangeably. Also that 2nd one you linked uses a captive O-ring.

[Jazzman]

I'm sure the NPSM would still work, people have been using the older swiftech's with NPSM and G1/4 interchangeably. Also that 2nd one you linked uses a captive O-ring.

I use the NPSM extender and it works like a charm. Please note that the Swiftech logo plate is simply glued on with contact cement. It is easily removed with a razor blade, and the cement residue can be removed with "goof-off" cement remover. You then can tighen the NPSM appropriately. (NOTE: I did not use double O-rings since the larger O-ring on the extender will suffice with the logo removed.)

Also, many folks recommend to lightly lubricate the O-ring with vasiline to prevent binding. I also did this and everything is very snug.

[Aberration]

Cant you just go to home depot or lowes, or whatever is the equivalent in Aus, and find fatter o-rings?

[Nemon]

ok, found Martin's test thread

http://www.xtremesystems.org/forums/...&highlight=gtz

I'm breathing a little easier that he didn't think there were any worries doubling up on the o-rings. (post #85)

I just finished my Wc install, for the GTZ I used 2 O-rings and past an 18 hour leak test. posting off my first liquid cooled PC. 4ghz stable i7 920 40C

BTW i dint see that little black piece in my GTZ, or is that for demonstration only? now in worried.

[freshy]

think im gonna go with
feser compression fitting>feser O ring>swiftech O ring>gtz block,

sound ok ?

and what hand tightness and a extra 1/4 of a turn with pliers and a rag ?

[Nemon]

think im gonna go with
feser compression fitting>feser O ring>swiftech O ring>gtz block,

sound ok ?

and what hand tightness and a extra 1/4 of a turn with pliers and a rag ?

They look good and all but who really looks inside unless its a show of piece, and they cost $$.

Compression fittings SUCKED for me. hard to install and I broke one installing on my Rad.
You put allot of stress on your parts! Then again i may have tightened them to much.

I have a couple barb fittings on my Vid card, wish i went all barb fittings, faster and easier to work with!