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Home Brew Forums > Home Brewing Beer > DIY Projects > Kettles, Mash Tuns, & Hot Liquor Tanks > Aluminum Bulkheads
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Old 12-26-2011, 01:14 AM   #1
aaronhrab
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Default Aluminum Bulkheads

So I am in the process if making the jump into all grain, and I only have one more keggle to outfit and while I was working today I said to myself "self why can't I use aluminum bulkheads?" When I went to answer myself I could not think of a good counter argument I could not come up with one. So a little research later and I found a aluminum coupling on McMaster Carr part number 44705K52 http://www.mcmaster.com/#=fittid my question is there any danger in using this other than the fact that if will likely wear out in 10 years unlike stainless which should last through my grandkids?

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Old 12-26-2011, 02:42 AM   #2
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  1. Heavy oxidation in a threaded area
  2. expansion and contraction at a very different rate than Stainless Steel
  3. is the price difference worth the cons?

find somewhere else in your system to cut corners
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Old 12-26-2011, 02:44 AM   #3
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Depending on the type of alloy if may not be food safe, NSF certified. But stainless 304/316 is...

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Old 12-26-2011, 01:51 PM   #4
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Both great points, I figured it would be a bad idea, and with the difference between bulkhead costs being only 4 bucks at the most and me only needing one more bulkhead it really would not be worth it.

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Old 12-26-2011, 02:33 PM   #5
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yeah I had a great company that could supply me with aluminum couplers, nice npt treaded, standard sizing. But they said it was not potable water safe.

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