Removing water - drop out

  1. Wildefalcon Member

    Messages:
    304
    Location:
    Gloucestershire, England
    I've found a rountoit, and am fitting my compressors to the workshop.

    I've an Ingersoll Rand type 30 compressor and a small Clarke twin piston compressor, both 3 HP, that will be fitted to a ring main.

    I want to spray with this set up, air feed mask, and do some blasting, so would like to remove all water from the system.


    I was going to go with a copper pipe set up, with an auto drain, as suggested in the guide here, but then I found out about drop out filters.

    Are they a good alternative to the copper pipe array idea? Cost and time wise there's very little in it.

    https://www.ebay.co.uk/itm/DROP-OUT...rain-UP-TO-32CFM-FILTER-DRYER-M-/274461550102

    Something like this?
     
  2. premmington

    premmington Member

    Messages:
    2,023
    Location:
    Norfolk
    Yeah Dropout filters work - I got one!

    DSC04554.jpg
     
    Morrisman likes this.
  3. Wildefalcon Member

    Messages:
    304
    Location:
    Gloucestershire, England
    That's what inspired me. How do they work? Plumb them inline?
     
  4. premmington

    premmington Member

    Messages:
    2,023
    Location:
    Norfolk

    Yes... Plumb it in before you regulate the air pressure down - I run our ring main at 100Psi - then at every outlet I reduce to 90Psi.

    These membrane filters need high (ish) pressure to get the water thru them - the tiny micron holes - they work sort of like GoreTex.

    I used to use a refrig' air dryer and now use these Dropout filters and never have any problem with them - but I don't spray paint!


    Only thing I could not find out when I speced them up is: Service life - how may hours at a defined CFM they last for?
     
    James1979 likes this.
  5. Wildefalcon Member

    Messages:
    304
    Location:
    Gloucestershire, England
    Cool. Thanks.
     
  6. bricol Member

    Messages:
    1,518
    N.Yorks, UK
  7. premmington

    premmington Member

    Messages:
    2,023
    Location:
    Norfolk

    How do they filter to 1 micron if they don't have a filter screen?
     
  8. bricol Member

    Messages:
    1,518
    N.Yorks, UK
    Simple physics . . . Although I think the spec claims "down to . .."

    But you're asking the wrong person - ask them. I only use the product with no complaints.
     
  9. Submariner1 Member

    Messages:
    96
    Location:
    Berkshire
    How much was the cheapest ... the ones I saw seemed pretty pricey?
     
  10. Wildefalcon Member

    Messages:
    304
    Location:
    Gloucestershire, England
    I contacted the seller of the eBay listing, they've not responded, so that's out. I think I'll go back to the copper organ pipes plan, not much in the cost and time, but it's simpler.
     
  11. bricol Member

    Messages:
    1,518
    N.Yorks, UK
    I can't remember what I paid - several years ago - paid , it arrived, I fitted it . . . and only remember it when it is mentioned - it sits there and works - so I reckon it was worth it.

    A quick google reveals sellers of the plastic 300l/m version from £120 to £130 ish.
     
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