Gas line check valve

Discussion in 'Homebrewing' started by inchrisin, Jan 29, 2015.

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  1. inchrisin

    inchrisin Pooh-Bah (2,013) Sep 25, 2008 Indiana
    Pooh-Bah

    I've had issues with the check valves on a few of my gas lines. I'll carb a beer in my basement and then hook up my gas line to the keg. Beer races down the gas line, I cuss a lot, and I have to break down the line and clean it.

    Anyone else failing here?
     
  2. JohnSnowNW

    JohnSnowNW Initiate (0) Feb 6, 2013 Minnesota

    I've only had an issue once...when I was in a hurry and attempted to force the gas line on the out post of my keg. Still, only a few droplets got in.

    Are you positive you have a check valve? I ask because I only know I have one as it was advertised on the Co2 distributors I bought.
     
  3. FATC1TY

    FATC1TY Pooh-Bah (2,564) Feb 12, 2012 Georgia
    Pooh-Bah

    Never had that problem.. I have them on all my gas lines that go into my distributor..

    Do you think they are sticking open somehow?
     
  4. inchrisin

    inchrisin Pooh-Bah (2,013) Sep 25, 2008 Indiana
    Pooh-Bah

    Is there a way to check? :slight_smile:
     
  5. FATC1TY

    FATC1TY Pooh-Bah (2,564) Feb 12, 2012 Georgia
    Pooh-Bah

    Yeah. Remove them. Blow one way and it should go through. Turn it over and repeat. Shouldn't allow air/liquid through.
     
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  6. Naugled

    Naugled Pooh-Bah (1,944) Sep 25, 2007 New York
    Pooh-Bah

    Are you using cornies? The beer shouldn't be able to get into the gas line from the keg. It can happen, though.
    What I've done is cut all of my longer gas dip tubes to a very short length, and I ensure I don't over fill the keg.

    That said, the check valves should work too.
     
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  7. jbakajust1

    jbakajust1 Pooh-Bah (2,552) Aug 25, 2009 Oregon
    Pooh-Bah

    What @Naugled said. I would cut the gas dip tubes a little short and watch how high you fill the keg. I haven't ever had that issue, but I always have a couple inches of head space after filling a keg.
     
  8. mikehartigan

    mikehartigan Maven (1,421) Apr 9, 2007 Illinois

    I once had an had issue with overcarbed cornie and no check valve. When I connected the gas line, CO2 immediately started venting at the regulator. The sudden release in pressure caused the beer to foam, which quickly sprayed from the regulator. That's one of those mistakes you swear you'll only make once.
     
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  9. inchrisin

    inchrisin Pooh-Bah (2,013) Sep 25, 2008 Indiana
    Pooh-Bah

    What would a shorter gas line do. I've always been told that gas pressure is constant and that line length doesn't really matter.
     
  10. jbakajust1

    jbakajust1 Pooh-Bah (2,552) Aug 25, 2009 Oregon
    Pooh-Bah

    @inchrisin I'm not sure what a shorter gas line would do. I (& @Naugled ) were saying to shorten the dip tube on the keg inside the post so it doesn't reach down as far into the keg so as to pickup the liquid and send it out of the keg.
     
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  11. inchrisin

    inchrisin Pooh-Bah (2,013) Sep 25, 2008 Indiana
    Pooh-Bah

    Gotcha. I'll be getting the Dremel out a lot this year
     
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  12. utahbeerdude

    utahbeerdude Maven (1,374) May 2, 2006 Utah

    I've had it happen, even on a manifold that supposedly has check valves built in. I am now careful to not be too greedy; I make sure I fill the kegs to below the bottom of the dip tube. I ,too, should probably cut the longer dip tubes.
     
  13. VikeMan

    VikeMan Grand Pooh-Bah (3,067) Jul 12, 2009 Pennsylvania
    Pooh-Bah

    Like some other folks, I have cut all of my gas dip tubes. They really only have to be long enough to hold the O-Ring. Make sure you have a way to hold the dip tube tightly while cutting with a dremel. I once spent about an hour finding one that had flown across the basement.

    ETA: I don't have check valves on my regulators, and have never had an issue.
     
  14. Bwhamon

    Bwhamon Initiate (0) Aug 29, 2014 Kentucky

    I tried a dremel tool and butchered the crap out of a dip tube. I bought a small pipe cutter from lowes for about $10 which works great.
     
  15. Naugled

    Naugled Pooh-Bah (1,944) Sep 25, 2007 New York
    Pooh-Bah

    What cutter did you use on the dremel? I used to use a pipe cutter but it deforms the tube. I've found that a dremel with an abrasive cut off wheel does a much cleaner job of it.
     
  16. Bwhamon

    Bwhamon Initiate (0) Aug 29, 2014 Kentucky

    That is the one I used. But...I have a generic brand from Harbor Freight. So maybe mine sucks. As far as the pipe cutter, you have to add pressure very slowly and keep turning over and over again or it can deform the tube.
     
    #16 Bwhamon, Jan 30, 2015
    Last edited: Jan 30, 2015
  17. inchrisin

    inchrisin Pooh-Bah (2,013) Sep 25, 2008 Indiana
    Pooh-Bah

    I may try to find something to sneak inside of the dip tube to help keep the shape while I cut it. Thanks for making me smarter. :slight_smile:

    I may try to snug it down into a drill and use it as a drill bit. I'll clamp a hack saw blade to the vice clamp and see what damage I can do.
     
    #17 inchrisin, Jan 31, 2015
    Last edited: Jan 31, 2015
  18. icepick

    icepick Initiate (0) Feb 17, 2008 California

    Angle grinder and a vice worked for me cut that shit clean
     
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