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Weldless fitting leaking Weldless fitting leaking
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Old 04-19-2008, 03:24 AM   #1
SomedumbJerk
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Default Weldless fitting leaking
i just got a Keggle from conpewter (thanks!) and i'm installing a weldless ball valve from morebeer.com, and i can't get the thing to not leak. if i overtighten it, the oring squishes out to the side of the washer. i put a bunch of teflon tape over the threads.. i'm running out of ideas... should i flatten the side of the keg so it sits flush?
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Old 04-19-2008, 03:55 AM   #2
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Is the hole in the keg a lot larger than the 1/2 inch NPT? Does the brass nut that came with your bulkhead have a cut away section shown in this thread.
Machined Keggle conv locknut here

This cut away section forces the o-ring to compress instead of distorting. Some lock nuts are flat on both sides and the o-ring is squeezed out of position.

I have two keggles that do not leak and only have one o-ring on the outside section of the keggle. Have you tried this approach?
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Old 04-19-2008, 04:15 AM   #3
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flattening may help, but try going reaaalllyyy slow when tightening and keep that oring straight in..
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Old 04-19-2008, 05:57 AM   #4
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so i have the oring on the inside... no nut... am i retarded? oh and i love the sifl and olli picture.
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Old 04-19-2008, 11:18 AM   #5
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Quote:
Originally Posted by SomedumbJerk
so i have the oring on the inside... no nut... am i retarded? oh and i love the sifl and olli picture.

Isn't that Chester?
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Old 04-19-2008, 03:25 PM   #6
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Did you get it to quit leaking?
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Old 04-19-2008, 04:23 PM   #7
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just did this morning. put like ten layers of teflon tape on, which made it feel like it was cross threading, so i took it apart to check, which made me need to tape it again. it held water for 45mins. without a leak. i's going to go get some propane today and boil some water to see if it holds up. the problem i foresee is the kettle getting hot and the water thats leaking evaporating before i can notice. we'll see!
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Old 04-19-2008, 10:21 PM   #8
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Isn't the O-Ring supposed to go on the outside where the nut is???
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Old 04-20-2008, 02:13 AM   #9
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My friend had the same problems after using a hole saw to cut up his kegs.
I ended up machining washers 1/4" thick by 2" OD with an internal step to hold in the "O" ring with one inside and outside each keg. After machining the washers they went thru a press matching the kegs radius for a solid leakproof seal. A flat nut even with a machined "O" ring slot against a kegs radius is like sealing a boat leak from the inside.

To avoid any leaking problems I would not consider a weldless fitting on any brewing system, JMO's.
Last edited by BrewBeemer; 04-20-2008 at 02:23 AM.
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Old 04-20-2008, 04:02 AM   #10
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The fatal flaw in weldless systems is having an Oring try sealing at the threaded portion of a pipe nipple. Think like wort....you'll find the way out.
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