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  • Keg washer air compressor oil and water separators

    Can anybody fill me in on models they have used or recommend for the oil and water separator in between the air compressor and keg washer/filler?
    Thanks, all!

  • #2
    We use two liquid/oil separators in line right after our compressors.

    For water, a separator is not enough. We tried that and had to replace and repair a lot of pneumatic valves and seals. You really need a correctly-sized refrigerated air dryer. We installed one and our water problems are gone.

    Our filters and air dryer are Ingersol Rand. Model will depend on the size of your system.
    Timm Turrentine

    Brewerywright,
    Terminal Gravity Brewing,
    Enterprise. Oregon.

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    • #3
      Originally posted by TGTimm View Post
      We use two liquid/oil separators in line right after our compressors.

      For water, a separator is not enough. We tried that and had to replace and repair a lot of pneumatic valves and seals. You really need a correctly-sized refrigerated air dryer. We installed one and our water problems are gone.

      Our filters and air dryer are Ingersol Rand. Model will depend on the size of your system.
      Thanks so much for the info! So should I expect to pay $800+ for an air drier for my $1,600 80 gallon air compressor?

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      • #4
        I don't recall what we spent on ours, but it was in that ballpark. The air dryer is sized for air demand in CFM, not the size of the comp. We sized ours for the max. output of our two compressors, with a little headroom if we upgrade.

        The dryer is expensive, but it will save you endless hours of maintenance and many $$ in replacement parts. Some of our equipment suppliers will void a warranty (not that they are worth the paper they're written on) if we didn't use a dryer. It's money well spent.
        Timm Turrentine

        Brewerywright,
        Terminal Gravity Brewing,
        Enterprise. Oregon.

        Comment


        • #5
          Originally posted by TGTimm View Post
          I don't recall what we spent on ours, but it was in that ballpark. The air dryer is sized for air demand in CFM, not the size of the comp. We sized ours for the max. output of our two compressors, with a little headroom if we upgrade.

          The dryer is expensive, but it will save you endless hours of maintenance and many $$ in replacement parts. Some of our equipment suppliers will void a warranty (not that they are worth the paper they're written on) if we didn't use a dryer. It's money well spent.
          I’m having a hard time finding how to calculate my needs. Why wouldn’t something like this be effective? I seems as though there is one mounted on my keg filler/washer, already.

          PneumaticPlus SAU4030M-N04DG-MEP Three Stage Air Drying System - Air Particulate Filter, 0.3 Micron Coalescing Filter & Air Pressure Regulator Modular Combo 1/2" NPT - Auto Drain, Metal Bowl https://www.amazon.com/dp/B0149L0SAC..._5OZ8Bb6B6D9RH

          Comment


          • #6
            Correct Pneumatic System Setup

            Originally posted by Homesteader82 View Post
            I’m having a hard time finding how to calculate my needs. Why wouldn’t something like this be effective? I seems as though there is one mounted on my keg filler/washer, already.

            PneumaticPlus SAU4030M-N04DG-MEP Three Stage Air Drying System - Air Particulate Filter, 0.3 Micron Coalescing Filter & Air Pressure Regulator Modular Combo 1/2" NPT - Auto Drain, Metal Bowl https://www.amazon.com/dp/B0149L0SAC..._5OZ8Bb6B6D9RH
            What you have posted is not a drier, its a separator and is under rated for Commercial-Industrial Level air compressors which typically cycle at 180 PSIG.
            If you are in a temperate zone, you definitely need a refrigerated air drier, before your air enters the plant distribution system. Typical component arrangement diagrams are available from outfits like Ingersol Rand. Your plant load is calculated on all your connected devices in SCFM. A small Brewery can typically get by with 1/2" piping. Its common to run a PRE and a POST filter coming in and out of the drier, and they will have slightly different specs. You need to pipe everything with isolation valves and bypass for the drier complete with gauges in key locations. Air driers cannot be in " unconditioned " space as you are removing water. The air that leaves your drier should be DRY.
            Warren Turner
            Industrial Engineering Technician
            HVACR-Electrical Systems Specialist
            Moab Brewery
            The Thought Police are Attempting to Suppress Free Speech and Sugar coat everything. This is both Cowardice and Treason given to their own kind.

            Comment


            • #7
              What sort of keg washer is it?

              IF you have a manual keg washer where the air is only used as motive force to empty a keg, AND you have no other pneumatic devices, then you don't need an air dryer. HOWEVER if you do have air-operated keg valves, bottling or canning equipment, fermenter valves, or any other air-operated equipment, then you will need an air dryer. Refrigerated is best for smaller compressors.
              Phillip Kelm--Palau Brewing Company Manager--

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