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Thread: Torch

  1. #1
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    Torch



    Could you guys compare acetylen x LPG torch: temperatures, advantages and disadvantages.
    Also about these portable MAPP gas torch and their limitations.

    Moises



  2. #2
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    Re: Torch

    Hi Acrisoft
    I have tried them all (nearly). But swear by the recent availability of Oxy & Mapp gas welding set - It weighs about less than 4 kGs and I have welded 1 3/8" pipe with it. For sweating 1 1/8" pipe I use the Oxy & Mapp set with an additional Mapp torch. The others are simply too heavy. They are all hot enough to weld copper with. The size is also a bonus. The kit costs less than AUD$400. I would only use the normal Oxy Acetylene on a big install with lots of welding. One advantage for the big heavy set is for welding a valve (4way, TEV, ball etc) where you need fast preheating so as not to damage the internals and a quick weld. There is more info on this new kit in this forum somewhere.

  3. #3
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    Re: Torch

    i heard that the oxy runs out very quick. Is this true?

  4. #4
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    Re: Torch

    if there is plenty of space the mapps are fine we carry the twin and single flue version but if you have a confined space or a bad bit ofcopper or anything larger than 13/8 stick to oxy you get a more lacal heat with oxy and you dont have to get the area so hot over such a wide area

  5. #5
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    Re: Torch

    Yes Savoc it uses two oxy to one mapp gas.
    Last edited by Tesla; 23-11-2011 at 09:53 PM. Reason: Typo

  6. #6
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    Re: Torch

    oxy/mapp gas for me,i have used them all the mapp on its own is too widespread with its heat on a big install its different space limitations etc,some people use propane/oxy [everytime i use it outside a force nine gale comes from nowhere and lighting up is a little difficult.

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