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expansion tank

hr Member Posts: 6,106
that sideways mounted expansion tanks have a shorter life expectancy then nipple up position. Does anyone else?

Mounted on their side, I have seen them last 20 years and more. Not bad for a tin can ;)

I'm more concerned about tanks mounted without adequate support. Like hanging from the nipple. Ever have a waterlogged one fall on your foot?

Connect them to a non barriered tube, high temperature hydronic system if you want to witness a short life span :)

hot rod

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  • Larry (from OSHA)
    Larry (from OSHA) Member Posts: 717
    up, down, or sideways

    I've seen them mounted in every possible position, but does it really matter?

    The Amtrol instructions seem to say mount with the inlet up. I can see that might be the best practice, but is there a down side to mounting an expansion tank sideways? Strapped sideways under a stand would be space saving.

    So, what's the consensus?

  • Bruce Stevens
    Bruce Stevens Member Posts: 133
    The only real concern by the manufactuerers

    is that if mounted where air can get trapped in the inlet then the bladder can dry and become porous
  • Josh_10
    Josh_10 Member Posts: 787

    That's my understanding too. The only other thing I would add that the manufacturer looks down upon is mounting overhead in a joist bay..
  • Bruce Stevens
    Bruce Stevens Member Posts: 133
    I with ya HR on that one

    I had a #60 Extrol come down and catch my fingers on a piece of angle iron didn't break anything but I was quite a while getting all my fingers to move normal again.
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