What size airline for tires?

Discussion in 'Ask An Owner Operator' started by Dino soar, May 18, 2020.

  1. Dino soar

    Dino soar Road Train Member

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    I have a glad hand that I can use to run airline to fill tires.

    I'm wondering if I use a line that is 1/2 inch if that would be better than using a 3/8.

    The half inch line will definitely give better flow but if it's going down to a quarter inch air Chuck I'm not sure if that's better.

    What do you guys think and what do you use?
     
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  3. buddyd157

    buddyd157 Road Train Member

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    sheesh, i gotta read slower, when i'm munching on corn chips.

    i thought your title read, "what size airline tires"...(didn't see the "for")

    i'm thinking like, "dude, stick to trucks, will ya"?

    and just an airline. i cannot recall what i had, musta been a 1/2 though, or it could have been a 3/8, what ever i bought at the Pilot back then.
     
    Last edited: May 18, 2020
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  4. Zues

    Zues Bobtail Member

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    Lol I use a 3/8 I decided because of size space not flow jmo
     
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  5. SmallPackage

    SmallPackage Road Train Member

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    If the compressor can handle it the 1/2 will give you more volume of air and will help air up tires faster and run 3/4” or 1” impacts if needed. Psi stays the same but gives you more air movement at the pressure over a 3/8. Also the longer the hose the bigger the diameter is better.
     
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  6. Rubber duck kw

    Rubber duck kw Road Train Member

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    Are you thinking something to store on the truck, I would go 3/8, takes up a lot less space and is much more flexible. If you're keeping it at a shop, 1/2 inch gets the job done faster, not necessary though.
     
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  7. Dino soar

    Dino soar Road Train Member

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    Well I'm looking for something to carry on the truck and your right 3/8 is definitely more portable.

    But I have heard people complain that it takes a long time to pump the tire up and since I'm buying a hose either way I'm wondering if I should just get the half inch and forget it.

    If the diameter of the hose really is going to help over 50', maybe the half inch is better?
     
  8. Dino soar

    Dino soar Road Train Member

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    Can the compressor handle it? It's a regular freightliner tractor trailer that runs at about 120 PSI.

    I can't do it immediately but I was wondering if I could find a good sized air tank if it would help to mount a large tank on the trailer for volume.

    I would put an on off valve just so that it's isolated from the rest of the system until I need more of a volume for whatever work I'm doing with air.

    More volume I would think would help. Does that make sense?
     
  9. Rubber duck kw

    Rubber duck kw Road Train Member

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    I'd hate to try to find some place to hide 50 foot of 1/2 inch air hose on my truck. I've put tires on the wheels with 3/8 line, that's running a 3/4 impact, and 110 psi in the tires, with a compressor that makes 130 psi max. That's actually what takes so long to air up tires, your comprsseor has to be running constantly to get you enough pressure to fully air up your tires.
     
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  10. SmallPackage

    SmallPackage Road Train Member

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    What I meant by if the compressor can handle it is what is it’s cfm capability. If it is the bare minimum to just keep the rig aired up and running you may be waiting a long time to get air into a tire. They are all capable of building pressure to 140 psi but it’s the amount of time and work it takes the compressor to do it. Also figure the more the compressor has to run to do it the hotter the air you are putting into the tires or air tools is going to be.
     
  11. SmallPackage

    SmallPackage Road Train Member

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    You may have to idle the truck up a little if it takes a long time for the compressor to build at low idle. It’s all doable. Just get what works for you.
     
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