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Compression fittings and tubing troubles?

post #1 of 6
Thread Starter 
So I've been testing out the compatibility between some of my water cooling parts before actually assembling them and i can't seem to get my 3/8 id 5/8 od compression fittings onto the tube of the same size without a ton of wrestling, and once it's on, I can barely get the cap onto the compression fitting. Am I using the wrong size tubing for this fitting or am I doing something wrong?
post #2 of 6
What type of fittings and tubing are you using? I know my monsoon fittings with primochill tubing was a little difficult to get the compression started on the threads of the barb. Something that helps a lot is heat to get the tubing soft and pliable. Warm up the tubing with even just the friction of your fingers rubbing it will be enough to help a lot, warm water is a good option. Your tubing should slide onto your compression barb fairly easily though, you should not have to fight that.
Edited by Namkab - 6/19/13 at 10:47pm
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300R
(16 items)
 
Phenom M
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MonitorKeyboardPowerCase
19" Dell CM Quickfire Rapid Blue Keys Kingwin STR-500 300R 
MouseMouse PadAudioAudio
Mionix Naos 3200 Func Industries 1030 Z-5500 Sennheiser HD 280 Pro 
CPUMotherboardGraphicsRAM
4670K Z87M Extreme 4 290 PNY 8 GB 
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post #3 of 6
Thread Starter 
Im using swiftech compression 3/8 id 5/8 od and I'm using primochill tubing as well. It just seems like in all the video that I've watched about water cooling setup, they have no trouble getting the tubing on and getting the cap on. But since my tubing and compression fittings are both 3/8 id and 5/8 od, I didn't choose the wrong size for one of them right?
post #4 of 6
If you have a 3/8 barb and 3/8ID tubing your in good shape. You should have no trouble sliding the barb into the tubing. Sometimes starting the threads can be a little difficult tough, but thats okay. Just to be clear you should not have to force stretching the tubing to get the barb in.
EDIT: Forget to mention the matching of 5/8OD compression to 5/8OD tubing is important.
Edited by Namkab - 6/19/13 at 10:55pm
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MouseMouse PadAudioAudio
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300R
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Phenom M
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CPUMotherboardGraphicsRAM
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Hard DriveCoolingOSMonitor
Agility 3 Watercooled Windows 7 QNIX 1440p 
MonitorKeyboardPowerCase
19" Dell CM Quickfire Rapid Blue Keys Kingwin STR-500 300R 
MouseMouse PadAudioAudio
Mionix Naos 3200 Func Industries 1030 Z-5500 Sennheiser HD 280 Pro 
CPUMotherboardGraphicsRAM
4670K Z87M Extreme 4 290 PNY 8 GB 
Hard DriveCoolingOSMonitor
OCZ Agility 3 240GB SSD Corsair AIO Win 7 Qnix 1440p 
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post #5 of 6
It's supposed to be hard to fit in, otherwise it won't be secure. Try taking a hairdryer and warming up the tube, then inserting it into the compression fitting. Counter-twist a bit before you put it in, and twist it slightly as you apply force. That way the tubes end up straight.
post #6 of 6
Thread Starter 
Alright I'll try that. Thanks guys!
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