Can I JB weld a coupling to my keggle for a bulkhead? - Home Brew Forums
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Old 10-11-2009, 02:49 PM   #1
Erik53
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I'm going to be building my first keggle next week and I am trying to figure out if it would make sense to JB weld the stainless coupling to the keggle instead of doing the weldless fitting. My though is that it might save a few bucks and be a simpler setup. But i'm concerned because I haven't seen any pics of anybody else doing this. Will it work? Is there any reason I shouldn't try this? Please help! Thanks.

 
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Old 10-11-2009, 02:52 PM   #2
Yuri_Rage
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JB weld is brittle. It might work for a while, but the joint will likely crack over time. It really doesn't cost that much for a bulkhead fitting. Try www.bargainfittings.com.
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Old 10-11-2009, 03:06 PM   #3
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wont hold up. If you don't tig weld a ss coupling into the keg, you are better off using a 1/2" nipple, and tap the threads into a 3/4 inch hole. "Skotrats po mans keg conversion" or you can use Zymies weldless bulkhead fittings that are sold on all the homebrew supply sites.

http://www.skotrat.com/go/default/br...onversion-101/

 
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Old 10-11-2009, 07:04 PM   #4
Erik53
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Thanks yuri, I most likely will just end up ordering the parts from that site, but i would sure like something welded.

Oldbrew, if I find a welder to do a stainless weld, any idea how much dinero do you think they would want per fitting?

 
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Old 10-11-2009, 07:42 PM   #5
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Prices for welding vary widely, anywhere from around $100 an hour shop time to a free six pack, sorry for the vague answer, but its true.

FYI, you can always use the keggle w/out a bulkhead valve, just chill and syphon out of the keg, some actually prefer this method???

I would not trust JB Weld, imagine losing the valve mid boil...oh my!


 
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Old 10-11-2009, 09:02 PM   #6
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I do not know the going rate in Lubbock Tx. but most of the time spent will be in the prep of meassuring drilling/fitting the coupling.

If you are handy, buy and fit the coupling into the keg. I'd say no more then $20. to weld it in if fitted. 15 minutes at most.

You want a welder that does dairy tank welding, or sanitary SS welding. They know how to back flood the area that they are welding with gas.

 
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Old 10-24-2009, 02:46 AM   #7
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What happens to a weld if it isn't back-flooded with gas or isn't 'sanitary'? i've read that 'sanitary' is more for the clean, polished look. i mean, we just need the weld to hold the pieces together, right? it all gets cleaned and sanitized before each use, so is sanitary welding necessary?
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Old 10-24-2009, 02:55 AM   #8
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Quote:
Originally Posted by nbspindel View Post
.... so is sanitary welding necessary?
No for a Mash tun, and not really for a boil kettle. A fermenter is a different game and should have sanitary welds.

 
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Old 10-24-2009, 03:03 AM   #9
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yeah, my bk certainly isnt sanitary when I sparge into it! Filled with lacto!

 
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Old 10-24-2009, 04:38 AM   #10
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Quote:
Originally Posted by nbspindel View Post
What happens to a weld if it isn't back-flooded with gas or isn't 'sanitary'? i've read that 'sanitary' is more for the clean, polished look. i mean, we just need the weld to hold the pieces together, right? it all gets cleaned and sanitized before each use, so is sanitary welding necessary?
For hot side equipment, any leak-proof weld will likely be fine. However, in the case of fermenters, chillers, and the like, the porosity of a non-back-purged weld will provide a place for unfriendly organisms to hide. A simple soak with a wet sanitizer will not be effective in that case.

Sanitary welding has nothing to do with aesthetics and everything to do with function.
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