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Problem with Oxygen / Acetylene Cutting Torch >> Acetylene line clogged

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  1. 10-22-2014, 10:07 PM #1
    JohnC4X4
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    Problem with Oxygen / Acetylene Cutting Torch >> Acetylene line clogged

    Title pretty much covers it

    I have an Oxygen / Acetylene Cutting Torch that I only use occasionally for vehicle dismantling
    Self taught user >> Same set up for at least 25 years
    Last couple months unit has been popping off when the head got close to what I was trying to cut
    Tanks were recently filled and had plenty of pressure >> Installed a new tip
    Problem continued until I could not even light the tip
    No Acetylene not coming out of the tip
    I shut the tank valve and slowly disconnected the hose from the torch
    Bunch of black dust blew out
    Torch side was completely clogged to the point I had to use a small screwdriver to clean it out, then opened the torch valve and then I used my air compressor to blow thru it




    Is this normal?
    Should be doing this on a regular schedule?
    Any thing else I should be doing or suggestions?
    Thanks
    Last edited by JohnC4X4; 10-22-2014 at 10:18 PM.
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  3. 10-22-2014, 10:07 PM

  4. 10-22-2014, 10:50 PM #2
    eesakiwi
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    If its got built in flashback arrestors, they could be blocked with dust.
    I dunno if the stuff that's in the acetylene tank can get right up into the torch, its a lint like material.

    Honestly, the gas companys are pretty loose reguarding their practises.
    I heard one idiot say "we get free acetone by, when we have emptyed the acetylene bottle, we turn it upside down and drain out a few litres of acetone......". Duh! The guy worked at a paint and panel car fixers.

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  6. 10-23-2014, 09:08 AM #3
    Patriot76
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    It sounds like the you do not have flash back arrestors on your torch or tanks and probably suffered a flash back. Do you ever hear load pops while cutting? Adding flash back arrestors might cure the problem.
  7. 10-23-2014, 09:18 AM #4
    taterjuice
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    Keep your torch valves shut and it should never happen
    Alvord iron and salvage
    3rd generation scrapper and dam proud of it

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  9. 10-23-2014, 09:22 AM #5
    taterjuice
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    Just curious, are you hoses rated for acetylene ? I've heard propane lines and acc don't mix well. Not a problem I've ever ran across.
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