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Thread: Centrifugal Purge Solution

  1. #1
    Join Date
    Dec 2014
    Location
    Bend, OR
    Posts
    88

    Centrifugal Purge Solution

    Hello all. What are some easy and effective options to purge air from centrifugal pumps? Is there a standard in the industry?
    I'm currently just loosening the output TC a bit and letting the air bleed, it's somewhat sketch at times and i'm looking for a safer solution.
    Just an instrument Tee with a ball valve?

    thnks

    mtn

  2. #2
    Join Date
    May 2012
    Location
    Livermore, CA
    Posts
    596
    Put a tee on the outlet, with a valve on one side. Open the valve until the pump is primed.

  3. #3
    Join Date
    Feb 2016
    Location
    San Francisco, CA
    Posts
    81
    Could just throw a valve on the pump outlet. Pro, a little less bulky than the T; con, you still have to open up what may be a sanitized loop when you wanna flush that air. Having the ability to open/close the output at will comes in handy all sorts of other times, too, to the point where we've just got a valve that lives on our mobile pump.

  4. #4
    Join Date
    Dec 2014
    Location
    Bend, OR
    Posts
    88
    Thanks all, a tee with a valve it is.

    mtn

  5. #5
    Join Date
    Oct 2002
    Location
    Chesterfield, UK
    Posts
    1,748
    It's not just the pump you should be purging, but the whole line from source to destination vessel - so the purge liquor supply should be on a Tee at the source vessel, and the bleed at the destination vessel
    dick

  6. #6
    Join Date
    May 2012
    Location
    Livermore, CA
    Posts
    596
    I think he meant to prime the pump, not to purge everything of oxygen.

  7. #7
    Join Date
    Aug 2010
    Location
    Enterprise, Oregon
    Posts
    1,794
    In addition to above suggestions, be sure the outlet port of the pump is located on top of the volute. I've seen several assembled with the outlet port below the top--impossible to purge fully.
    Timm Turrentine

    Brewerywright,
    Terminal Gravity Brewing,
    Enterprise. Oregon.

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