fittings loose overtime?

[wildgg]

so about 2 months ago i build my full watercooling build cpu+gpu and today i checked my fittings and they weren't tied anymore like on the day i build the loop is this normal? because the system heats up and cools down?

some of the fittings i could give half a turn..

 

now i'm not to worried about it because it took me allot of forse to even get the tube on the fittings but i was just wondering if this was normal.

 

fittings used:  EK-ACF Fitting 10/16mm   

tube used:     PrimoChill PrimoFlex Advanced LRT 3/8 ID - 5/8 OD - Crystal Clear - PFLEXA-58   

 

thx in advance,

 

 

 

[zMeul]

the temp deltas aren't great enough for such a difference, I'd look at the o-rings

[wildgg]

Just now, zMeul said:

the temp deltas aren't great enough for such a difference, I'd look at the o-rings

sorry i didnt mention it, but i meant the ring that compreses the tube, not the fitting into a block if that makes sense..

[airdeano]

yes, due to the expansion of the metals during the heating up phases.

eventually, you'll find that the cycling will subside once everything has stabilized.

[wildgg]

Just now, airdeano said:

yes, due to the expansion of the metals during the heating up phases.

eventually, you'll find that the cycling will subside once everything has stabilized.

so this is a one time thing?

 

i don't mind checking every other month orso i just don't want it to leak

[zMeul]

5 minutes ago, wildthing said:

sorry i didnt mention it, but i meant the ring that compreses the tube, not the fitting into a block if that makes sense..

yes, the o-rings are rubber and they will "settle" over time - eventually rubber degrades (at least 15y)

[airdeano]

it should be a routine thing at first, then as time goes on, they'll eventually reach a point they'll not need periodic checking.

[wildgg]

2 minutes ago, zMeul said:

yes, the o-rings are rubber and they will "settle" over time - eventually rubber degrades (at least 15y)

i'm not talking about the o-rings, i was talking about these: http://imgur.com/a/3FhpC

 

[zMeul]

43 minutes ago, wildthing said:

i'm not talking about the o-rings, i was talking about these: http://imgur.com/a/3FhpC

 

those fittings won't loose because the temp deltas aren't that great - it will need 10deg C delta for brass to expand 1-2mm

instead the hose (PrimoChill PrimoFlex Advanced) and o-rings will

 

 

[THFourteen]

I'm glad i read this thread, will open up my case and re-check all the fittings!