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Thread: What is the best way to run air compressor lines

  1. #76
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    Re: What is the best way to run air compressor lines

    Quote Originally Posted by ronsii View Post
    Yeah, the ring piping really didn't make sense without some way to drain it.
    ANY wet piping needs a way to drain it.
    however i have found if its running through hot parts of the building we get no build up in the pipes.
    until it gets to the air conditioned workplace. then it cools down and builds up in the pipes.

    the other issue is when you have air pipes out side, eg an outdoor compressor shed, and the outdoor temps are below freezing. you can get ice build up in the pipe.

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  3. #77
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    Re: What is the best way to run air compressor lines

    Quote Originally Posted by tackit View Post
    My shop is only 24' wide, the welding table is centered in the middle of the shop, my small compressor is only 12' away from the welding table so I just use a rubber hose off a drainable water trap/filer mounted to the compressor, if I went to the wall to hook a to a quick disconnect, the hose would have to be over 12' long anyway.

    I have a 1/2 hose on the compressor and a 3/8 hose that goes through the roof trusses and drops down over the welding table.

    More important than airlines, have you recently hydro-tested your old compressor's air-receiver tank?
    one of the issues with the water trap/filter being close to or on the compressor is the air doesn't cool down enough to remove a lot of moisture.
    especially so with portable air compressors.

    the hydro tester look interesting.
    not something i've seen over here. talking to works air compressor service crowd, the re guard it as a non issue. the tanks pin hole and leak before they let go.
    i certainly have not heard of any failing over here.

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  5. #78
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    Re: What is the best way to run air compressor lines

    Quote Originally Posted by tackit View Post
    I haven't had a water problem so far, If my compressor was used everyday all day long I'm sure I would have a different situaton.

    For added protection, I put small filters I get from USAWeld on my Harbor Freight sand blasting cabinet and my plasma machine.
    how much water comes down to climate. we average something like 80% humidity here so we tend to get heaps in the water trap, especially on the high humidity days.
    one thing you really have to avoid is moisture condensing in the lines. it builds up and then floods the filters. had that happen a few times on the old setup.

    the desiccant filters are great. i have one but i find it doesn't last long. really hard to find the big ones here and i suspect if i could get one its would be horribly priced.

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  7. #79
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    Re: What is the best way to run air compressor lines

    Quote Originally Posted by tweake View Post
    their diagram is poor imho. no cooler, tho the lines to the drier can act as a cooler if long enough. main filters (including oil coalescing) are in the wrong place. you want them before the refrigerator drier.
    they are there to protect the drier. the drain legs after the drier are somewhat redundant. the ring main is ok.

    Attachment 1709847
    You may be misreading it. They have a coalescing filter before the refrig. And one after it. They just also plumbed in a bypass loop to skip the dryer if need be. One benefit of the ring is that you get air from both directions at each drop which can help minimize supply restrictions some for higher volumes.
    -Dave
    XMT304 with: 22A Feeder, or HF251 Hi Freq DC TIG air cooled

  8. #80
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    Re: What is the best way to run air compressor lines

    Quote Originally Posted by tackit View Post
    Stay safe and healthy my Kiwi friend, best wishes from America.
    i hope you guys are staying safe.
    from what we see on the news its looking pretty fubar over there.
    at least we are not getting bombed like our grandparents did !

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  10. #81
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    Re: What is the best way to run air compressor lines

    Anyone use copper coils for air lines? (The kind for A/C refrigerant?)

  11. #82
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    Re: What is the best way to run air compressor lines

    Quote Originally Posted by mbarasing View Post
    Anyone use copper coils for air lines? (The kind for A/C refrigerant?)
    I’ve run them before with straight lengths of HVAC copper. Works great. This was a standard alternative to black pipe 30 years ago.
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  12. #83
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    Re: What is the best way to run air compressor lines

    Quote Originally Posted by mbarasing View Post
    Anyone use copper coils for air lines? (The kind for A/C refrigerant?)
    a little. just for short sections of small diameter.
    trouble is once you get up to any decent size the cost goes through the roof.

  13. #84
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    Re: What is the best way to run air compressor lines

    The use of PVC pipe is common but NOT RECOMMENDED for use with compressed air. ... However, as with many plastics, PVC gets brittle over time and can crack, break, or even shatter. The presence of air compressor oils in the line and heat from the compressed air accelerates the degradation of PVC.

  14. #85
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    Re: What is the best way to run air compressor lines

    My current experiment is four 1/2" hoses from compressor to garage, 95ft. Same cross sectional area, and thus volume, as a single 1" ID tube/pipe. $40 each hose at Harbor Freight. Will be two years in June of this summer. I created my own manifold to split the compressor outlet and to recombine them into the regulator/filter/water separator end in side the garage. Let's see how long it will last.
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  16. #86
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    Re: What is the best way to run air compressor lines

    Quote Originally Posted by Oscar View Post
    My current experiment is four 1/2" hoses from compressor to garage, 95ft. Same cross sectional area, and thus volume, as a single 1" ID tube/pipe. $40 each hose at Harbor Freight. Will be two years in June of this summer. I created my own manifold to split the compressor outlet and to recombine them into the regulator/filter/water separator end in side the garage. Let's see how long it will last.
    Just a bit more surface friction and thus heat transfer ability

  17. #87
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    Re: What is the best way to run air compressor lines

    I have an intercooler in between compressor stages and an aluminum chevy driveshaft capped off as an aftercooler, then thru a refigerated air dryer, 1" pex to a propane tank for storage, 2" manifold along entire length of work bench.
    Works good and cheap other than the air dryer

    Really impressed with the pex as air line

  18. #88
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    Re: What is the best way to run air compressor lines

    My old shop had copper. I priced out the kits from northern and amazon and I can do it for less with 3/4" copper. I saved all the blueline push on couplers for the old shop.

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  20. #89
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    Re: What is the best way to run air compressor lines

    I found using old SPAM cans and tigging them together worked ok.... but the air always smelled like pork???

  21. #90
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    Re: What is the best way to run air compressor lines

    Quote Originally Posted by ronsii View Post
    I found using old SPAM cans and tigging them together worked ok.... but the air always smelled like pork???
    The lines are too long to eat that much spam!

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  23. #91
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    Re: What is the best way to run air compressor lines

    Quote Originally Posted by arcflash View Post
    The lines are too long to eat that much spam!
    Get hold of 12V71... he's got a mountain of them things saved up

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  25. #92
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    Re: What is the best way to run air compressor lines

    To think they have a spam museum in Minnesota!

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  27. #93
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    Re: What is the best way to run air compressor lines

    Quote Originally Posted by arcflash View Post
    To think they have a spam museum in Minnesota!
    Yep world famous!!! They even have a shop there where you buy all kinds of stuff

  28. #94
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    Re: What is the best way to run air compressor lines

    Quote Originally Posted by ronsii View Post
    Yep world famous!!! They even have a shop there where you buy all kinds of stuff
    If anyone visits their gift shop please help me get one of these for 12V


    Sent from my iPhone using Tapatalk
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  30. #95
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    Re: What is the best way to run air compressor lines

    Quote Originally Posted by Lis2323 View Post
    If anyone visits their gift shop please help me get one of these for 12V


    Sent from my iPhone using Tapatalk
    You must mean the 'CANJO' perfect gift for anyone who loves great music and food!!!

    https://store.spam.com/all-products/canjo-instrument
    Name:  spam-canjo1.jpg
Views: 66
Size:  21.2 KB

  31. #96
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    Re: What is the best way to run air compressor lines

    Quote Originally Posted by ronsii View Post
    You must mean the 'CANJO' perfect gift for anyone who loves great music and food!!!

    https://store.spam.com/all-products/canjo-instrument
    Name:  spam-canjo1.jpg
Views: 66
Size:  21.2 KB
    Sorry that's more than I planned to spend. You've known him longer. You buy it.


    Sent from my iPhone using Tapatalk
    :

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  33. #97
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    Re: What is the best way to run air compressor lines

    Well.... they do have this fridge magnet for 50 cents....

    https://store.spam.com/all-products/spam-classic-magnet
    Name:  spam-mag1.jpg
Views: 103
Size:  39.4 KB

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  35. #98
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    Re: What is the best way to run air compressor lines

    Quote Originally Posted by ronsii View Post
    Well.... they do have this fridge magnet for 50 cents....

    ]
    Canadian?


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  37. #99
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    Re: What is the best way to run air compressor lines

    Quote Originally Posted by Lis2323 View Post
    Canadian?


    Sent from my iPhone using Tapatalk
    No, that would be $12.95 CND each plus $782.00 USD shipping and handling(each additional item ships for only $5.00 each per magnet) and there may be additional charges at delivery for HST and the "Customs Coffee Fund" and it has to be multi-lingual which may be an additional charge. Minimum order is 12 dozen but Canada did away with Imperial measure so you can NOW order in Multiples of 10,so minimum order is 15 boxes of 10, with a bonus 2 extra magnets in each box. They are going fast so place your order now!
    ---Meltedmetal

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  39. #100
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    Re: What is the best way to run air compressor lines

    Quote Originally Posted by Meltedmetal View Post
    No, that would be $12.95 CND each plus $782.00 USD shipping and handling(each additional item ships for only $5.00 each per magnet) and there may be additional charges at delivery for HST and the "Customs Coffee Fund" and it has to be multi-lingual which may be an additional charge. Minimum order is 12 dozen but Canada did away with Imperial measure so you can NOW order in Multiples of 10,so minimum order is 15 boxes of 10, with a bonus 2 extra magnets in each box. They are going fast so place your order now!
    LOL. You had me at "going fast"!

    Sign me up


    Sent from my iPhone using Tapatalk
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