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  •  » New air compressor drain

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    3/24/2026 7:59 PM  #1

    MS
    Forum Originator

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    From: Canyon Lake, Texas
    Registered: 1/24/2013
    Posts: 12,737

    New air compressor drain

    Anybody read Chinese?  Best translation I could come up with says it needs a liquid line that feeds back to the compressor pipe to keep it from getting an air bubble in the bowl.  Anybody have one like this?   I used to design compressed air systems but have not had to do this and am not sure what to plumb where to accomplish it.




    Money you enjoy wasting is NOT wasted money... unless your wife finds out.
     

    3/25/2026 4:55 AM  #2

    TKOPerformance
    Hyper FYIFORD ADDICT

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    From: Newark, DE
    Registered: 12/15/2014
    Posts: 7,939

    Re: New air compressor drain

    Pretty sure it says: next time buy American round eye.  

     

    3/25/2026 6:39 AM  #3

    John Ha
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    From: Mitchell, SD
    Registered: 4/02/2013
    Posts: 1,038

    Re: New air compressor drain

    From Google Translate

    Founding Member of the Perpetually Bewildered Society
     

    3/25/2026 6:42 AM  #4

    BobE
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    From: White Plains, NY
    Registered: 4/04/2013
    Posts: 2,963

    Re: New air compressor drain

    I can’t read Chinese but my experience in steam and compressed systems would say this is a float valve.  In the compressed air systems that I’m familiar with, the input piping would be from the bottom of the air tank, the discharge piping would discharge to a floor drain.  The Y-strainer mounted in the input line is there to filter out any debris that may be in the system that could impact the float valve’s operation.   
    Hope this is helpful.

    65 Fastback, 351W, 5-speed, 4 wheel discs, 9" rear,  R&C Front End.
     

    3/25/2026 9:29 AM  #5

    DC
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    From: Marshall, MI
    Registered: 4/01/2013
    Posts: 1,253

    Re: New air compressor drain

    30 years ago I put one of those in the trash because it did just the opposite of what it was supposed to, make things easier. Since then the little drain petcock has been open a tiny amount. It lets out a tiny amount of air along with the water but the compressor tank stays dry! I spend whole days out in the shop and the compressor hardly ever runs. Compressor is an 80 gallon 7HP 3 cylinder.

     

    3/25/2026 1:24 PM  #6

    MS
    Forum Originator

    Online!

    From: Canyon Lake, Texas
    Registered: 1/24/2013
    Posts: 12,737

    Re: New air compressor drain

    BobE wrote:

    I can’t read Chinese but my experience in steam and compressed systems would say this is a float valve.  In the compressed air systems that I’m familiar with, the input piping would be from the bottom of the air tank, the discharge piping would discharge to a floor drain.  The Y-strainer mounted in the input line is there to filter out any debris that may be in the system that could impact the float valve’s operation.   
    Hope this is helpful.

    That is also my understanding.  We have 80% humidity here, so I might experience more water inclusion that dryer areas.

    Money you enjoy wasting is NOT wasted money... unless your wife finds out.
       •Thread Starter
     

    3/25/2026 9:06 PM  #7

    Nos681
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    From: Atlantic Mine, Michigan
    Registered: 7/14/2016
    Posts: 3,539

    Re: New air compressor drain

    This was the translation from my phone…😁


     

     

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