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Fitting Size Question

post #1 of 10
Thread Starter 
If I get a tubing with 3/8" ID and 1/2" OD do I want to get a compression fitting with 3/8" ID and 1/2" OD?

Because when I put tube in and screw it on it is hard to get it all the way closed Like I cant thread it all the way the ring
Edited by JMatzelle303 - 3/19/13 at 9:56am
post #2 of 10
ID stands for Inner Diameter. OD stands for Outer Diameter. You want to match the ID of the tube with the OD of the fitting as far as i am aware.
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post #3 of 10
Thread Starter 
Well I did that but the actuall part you screw on the fitting wont go all they way down. Is it suppose to be only hand tight
post #4 of 10
I have no idea. Try to leak test the loop with the fittings screwed on as tight as you can get them, and go from there i guess.
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post #5 of 10
Quote:
Originally Posted by JMatzelle303 View Post

Well I did that but the actuall part you screw on the fitting wont go all they way down. Is it suppose to be only hand tight
Yes, hand tight is all that is needed. There will be a gap between the ring and the bottom of the fitting about the same size as the wall thickness of the tubing.
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post #6 of 10
MAke sure the block is the same size as the fitting your screwing in Block must be 1/4 and the compression fitting outside could be what ever size you want. It shoud not screw all the down just enough until the washer ring is secured the hole and hand tight so that you dont rip the washer. There should only be about 3-4 threads on a 1/4 fitting so the turning in might be quick.
post #7 of 10
Thread Starter 
carb, I was talking about the part where the tubing goes on the guy above you answered that
post #8 of 10
I have a question building off that, I have 7/16" ID 5/8" OD tubing, and I am looking at compression fittings. Which size fitting should I get? ones with 1/2" x 3/4"? or ones with 3/8" x 5/8"? The 1/2 ones seem like they might not be tight enough, and the 3/8 one might be too tight.. which size would be a safe size to go with?
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post #9 of 10
Neither. There are compression fittings that match that tubing size. I would provide you with links, but I'm on my phone. I know for a fact bitspower makes them, since that's exactly what I have. Monsoon makes them as well. Not sure about EK and XSPC though.
Edit: here you go http://www.performance-pcs.com/catalog/index.php?main_page=advanced_search_result&keyword=7%2F16&categories_id=346&inc_subcat=1&manufacturers_id=&pfrom=&pto=&dfrom=&dto=&x=57&y=10
Edited by morencyam - 3/20/13 at 4:41pm
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post #10 of 10
From looking at the Stock of fittings that my Local Micro Center has, I might just return my tubing and get a 1/2" x 3/4" set of tubing, as it looks like they have the largest selection of compression fittings for that size.
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