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  • Hose Designation

    Hi all. I want to switch over to propane. Is there a number or letter designation for the correct hose I should be using? Thanks in advance. Uncrichie.

  • #2
    I believe you need the "T" grade, as opposed to R or RM.

    http://www.parker.com/ead/cm2.asp?cmid=3346
    --- RJL ----------------------------------------------

    Ordinarily I'm insane, but I have lucid moments when I'm merely stupid.
    -------------------------

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    • #3
      Thanks POP that looks like it. Nice to know that the T grade can be used with just about all fuels. Uncrichie.

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      • #4
        Yeah, it's "T" grade, but before I knew that, I ran propane through an "R" rated hose, and I didn't have any problems. I'm thinkin' it would take pretty constant (like, daily) exposure of the "R" innards to alternate fuels before there is any discernible deterioration.

        Still, the right way is the right way....

        Hank
        ...from the Gadget Garage
        MM 210 w/3035, BWE
        HH 210 w/DP 3035
        TA185TSW
        Victor O/A "J" series, SuperRange
        Avatar courtesy of Bob Sigmon...

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        • #5
          I should have posted a link (forgot it) , but I found something that mentioned two factors - chemical degradation and permeability. Since Acetylene is used at such low pressure, apparently permeability of the hose isn't a problem. It may have to do with the size of the gas molecules as well. Long-term use and constant exposure to higher pressures could result in leakage.
          --- RJL ----------------------------------------------

          Ordinarily I'm insane, but I have lucid moments when I'm merely stupid.
          -------------------------

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          • #6
            I'm definitely going with the "T" grade, thanks fellas. Uncrichie.

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            • #7
              I have been runing LP through my cheap "R" hoses for over a year. They need to be replaced, because of wear and tear anyway, no degridation.
              "Weld It And You Won't Be Screwed"
              Rescued from the boneyard SA-250 on a fully equipt trailer (My Wife's Explorer cries every time I hitch up)
              Trailblazer 301G (can't touch the SA-200 for stick)
              Arcair K-4000 A.K.A "The Hissing Cobra"
              HF- 251 TIG box for the TB with a Weldcrap torch, Yes I weld aluminum
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