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  1. 7th Sep 2010, 10:25 PM #1
    the fabricator
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    Default oxy lpg conversion

    hey guys, i've been told my acetylene set can be used on lpg by just changing hoses and tips but can use the same regulator. i tried to insert the acetylene regulator into a standard 9kg barbeque gas bottle, as i was told you could do, and it only went in a couple fof threads before the reg got super hard to turn and would start to strip the threeads. are they different threads? is there an adaptor for this?
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  2. 7th Sep 2010, 11:01 PM #2
    China
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    acetylene regulators have a left hand thread, you need a lpg regulator.
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  3. 7th Sep 2010, 11:03 PM #3
    old_fella
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    I think lpg may also be left hand but there a different thread and wont fit
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  4. 7th Sep 2010, 11:41 PM #4
    DJ’s Timber's Avatar
    DJ’s Timber
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    Quote Originally Posted by the fabricator View Post
    hey guys, i've been told my acetylene set can be used on lpg by just changing hoses and tips but can use the same regulator. i tried to insert the acetylene regulator into a standard 9kg barbeque gas bottle, as i was told you could do, and it only went in a couple fof threads before the reg got super hard to turn and would start to strip the threeads. are they different threads? is there an adaptor for this?
    You might want to do a bit more research into this, mixing oxy/acet regulators with LPG using OXY/Acetylene equipment can be quite explosive as it isn't the same. You need to use regulators specified for OXY/LPG otherwise you'll get very explosive results.
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    DJ

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  5. 8th Sep 2010, 11:09 AM #5
    Mathuranatha
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    It was a decade or so I changed over , but I just used the threaded part from an old 9kg LPG bottle regulator to replace the threaded part of my aceteleen gauge.Easy as that .Same gauge , same settings, just swap the threaded collar for one with the LPG thread..

    The same brazing/heating tips can be used with a slight cup drilled in the end . Same hose can be used but u will need a special cutting tip for your cutter.

    ---mat --
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  6. 8th Sep 2010, 05:03 PM #6
    .RC.
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    Quote Originally Posted by DJ's Timber View Post
    You might want to do a bit more research into this, mixing oxy/acet regulators with LPG using OXY/Acetylene equipment can be quite explosive as it isn't the same.
    I think that might be an urban myth..They run at similar pressures but the threads are slightly different in some way that I have not researched...

    I ran into the same problem, the acetlyene regulator partly screwing into an LPG bottle..

    I picked up a Harris regulator for $115 from my local welding shop...It was cheaper then ebay or online....
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  7. 17th Sep 2010, 07:50 PM #7
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    weisyboy
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    we ran lpg on out accetaline regs and nozels for a year or so. didnt have any trouble. teh hoses perished from old age so we replaced with a lpg set.

    www.carlweiss.com.au
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    8" & 10" Lucas Mills, bobcat, 4wd tractor, 12 ton dozer, stihl saws.
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  8. 19th Sep 2010, 07:55 AM #8
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    jatt
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    Can I assume that there wouldnt be any issues wrt to the flashback arresters. Got and old CIG Comet Oxy/A
    Frisky wife, happy life. ​Then I woke up. Oh well it was fun while it lasted.
    From an early age my father taught me to wear welding gloves . "Its not to protect your hands son, its to put out the fire when u set yourself alight".
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