ThermaltakePacific DIY LCS Black G1/4 PETG 16mm (5/8") OD Tube 90 Degree Compression Fitting Cooling CL-W097-CA00BL-A

Too many enthusiasts are inadvertently pressurizing their liquid cooling systems. If you seal the loop shut and then heat the coolant, the fluid will expand, but to where? It will drive up your PSI, cause leaking at the joints, and even push hardlines out of their sockets. Unaware of their error, they then blame the fittings manufacturer. While safely sealing a loop is possible, it requires attention and care. You have to let it run under heated conditions and then use a manual relief valve to normalize the pressure. Of course, if your systems runs particularly hot you will then have a vacuum situation upon cool down. That's less likely to matter, but depending on your setup it still can. IMO, the best solution is to *NOT* seal your loop completely shut. That's what this fitting is for! No, not as part of your plumbing, but as part of your exhaust, such as at the top of your reservoir with a small air gap in-between. It will gradually and automatically equalize the pressure. Yes, if you overfill or the tower tips over, it will drip coolant, so don't do that. It's really not that hard. And if you can, port it to the outside of your case and then if it does drip you'll have a carpet stain instead of an electrical short. Presumably, this will also increase evaporation from the loop, but that's why this fitting uses teflon, which is naturally hydrophobic. That means while its micro pores pass air relatively well, it tends to repel moister, thus limiting evaporation.

Really did help out the whole look of my build. It made assembling the rig much easier since it didn't have to be one long tube that was bent multiple times. Highly recommend but I think it was a bit expensive.

I was looking for a one-way pressure relief valve, and I suppose that is what this is. What I expected was something that would let pressure escape the loop when above a certain PSI rating. This seems to accomplish the intended function without that however.This is essentially a sheet of pliable teflon tape pressed between a BSP G1/4" fitting and a ring, which will stretch/expand to allow for pressure equalization. For example, the one on my GPU loop looks like it's blowing a bubble when I'm playing something demanding, but returns to a taught sheet when I'm idling within Windows. As it expands it lessens the pressure fighting to bypass my fitting o-rings or my waterblock seals.At the one month mark I'm pretty happy with them. Four stars for now, because I'm not convinced the elasticity in the teflon will continue to work long-term. I'll return in 5-6 months and tell you if they've failed by then.

I didn't have problems in the past with pressure (due to temp changes), as the res/rad combo had a vent in its screw on cap, but im now using a "plastic" res and didn't want to risk anything, so i put some tubing over the vent port and inserted the tip of an old eye drop bottle, so it can vent but no dust gets in the loop.The only problem: if i lay the case flat (when cleaning/working on it) there are sometime a few drops of coolant coming out, so i wanted an actual pressure valve, as they tend to have needle sized holes that wont "leak" one drop, so i got this.It works, but its a joke to have a water cooling part that is supposed to prevent water leaving the loop, yet Tt says it can leak if loop is tilted so that water reaches it.Will order a different one and keep this for backup, different loop.

Add 90 degrees simply

these fittings are high quality and have a nice finish, with a gold colored logo on the bend. I used a few of these in my loop in spots where i couldn't fit the tube into the case with several bend angles, such as around a radiator through a tight space. such as the front of the thermaltake AH T650 or whatever its called. but i put a duel radiator on the front of the quad radiator in the extra space in the bottom and i had to make some bends around the radiator and through the front then back around to the gpu. there was no way i could fit it in there unless i took everything out and put it all back in, so i purchased this to link 2 tough bends together and it worked great.

Works like supposed to meet a good quality in the Finish is durable definitely recommend if you're looking for this type of product

When I first started my custom water loop I though it would be easy to just bend the tube myself and I wouldn't need any extra fittings...well guess who was wrong! This guy... Trying to get perfect bends in hard tubing is not an easy task, especially when you are using a hair dryer as a makeshift heat gun and have on oven mits after you burnt your fingers a few too many times because you decided to hold the spot you were trying to heat as well as give it the perfect amout of bounce for those luscious natural looking curls that will make it stand out in a crowd. Don't even get me started on measuring the pipe either... Measure twice cut once my A**! I measured 6 times and still ended up with a useless pile of junk with amazing hair (yes my hair dryer grows hair on inanimate objects, but thats not important) after learning that heated plastic stretches when being bent... So after a full day of surgery on 1 piece of tubing and language the kids next door probably shouldn't know yet, I decided to buy a bunch of these handy little fittings and after 1 hour my water loop was done and I was ready to explain to my neighbors that the fighting they heard was between myself, a hair dryer and plastic tubing...

I have a case that has lots of places where air gets caught up, so I installed 3 in various places on positive side of pump (delivery) and it worked for while then……pop!! Failed miserably. Not sure if these are good under pressure as it doesn’t say that in the 3 lines on the instructions? So these are just words intended as advice.

Replaced another brand's pressure valve that was leaking water out the top of my reservoir. This one has given me no problems so far, I even bought a second to put in another spot in my loop.So far after a few weeks of using this, I have had no issues. I would not build a hardline build without at least one pressure valve. Time will tell if this will last over the long term, but so far so good. It looks decent and seems to help so far...

No leaks, feels like a quality part and a very easy way to get a mid line perfect 90 great for those tubes that have multiple bends in them

It makes my system evaporate fluid faster but my reservoir has been holding up for a year now and I believe that this is why.

The media could not be loaded.  Nose como funciona pero le pique con una aguja para que pasara el aire y listo la presión de aire sale bien así evito la espuma y fugas por presión