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Airco Torches

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John Hallis

03-07-2001 10:50:45




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Hello,
My step-father recently gave me a torch set and I want to learn more about it. The set includes; Airco cutting torch, style 4890; Airco torch handle, style 819 0800; Jet Mixer rose bud, style 757 no. 17 labeled (not for acetylene); NTT tips #'s 1&5, style 261; Smith Oxygen regulator #H1710A-540; Smith fuel regulator #H1521A-510; 50 feet of hose; and two Airco single gage regulators (one fuel, one Oxygen) that are marked for a maximum inlet pressure of 300 psi. I don't know how old it is, but everything appears to be in good condition.
Now for the questions. Is Airco a good brand? What is their history? I've been unable to find them on the web. Would you consider this torch combination to be light, medium, or heavy duty and what does that mean? Can anyone recommend a good reference booklet for matching gas pressures with torch tips (& rose bud) for both acetylene and propane. The National Torch Tip website lists my tips for use with propane. Can my Smith fuel regulator be used for either acetylene or propane? I don't know what the two single gage Airco regulators are for, however, I assume they are intended for use on a manifold system where the oxygen & fuel pressures have already been stepped down below 300 psi? I don't plan on using them.
Since my torch appears to be set-up for using propane, I'm planning to go this route. Most likely I would only use it for heating and cutting. On the other hand, changing over to acetylene seams to be as easy as changing tips and would allow more flexibility for welding and brazing, which is mighty tempting. I've heard you can't weld with propane because it doesn't burn clean enough. Is there anything else I should consider before choosing fuels?
McMaster Carr lists two grades of welding hose, R for aceytlene only and T for all fuel gases. What happens if you use propane in a grade R hose?
Sorry for such a long post, I hope you guys can shed some light. Thanks,
John

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n.y.

07-29-2005 14:31:02




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 Re: Airco Torches in reply to John Hallis, 03-07-2001 10:50:45  
regarding the question of the airco eq., its not a top brand, and some things are available through aftermarket and import items, the company was split up awhile back, concoa has part of it, and most items, can also be crossed over through uniweld, not a top brand either, in my book. ,... your better brands would be , smith , victor , oxweld , purox , harris. and yes the right hose is important for the right gas, propane will penatrate the cheaper hose, so you must match up your gas and hoses, the grade r is the cheaper hose, cant go wrong with a grade t , you need to visit a trained welding supply for the real answers, too dangerous to guess n this stuff, and all your tips do not interchange either, you need to see them, to make sure your set up is correct, if not call me !!!

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Keith Rat

03-08-2001 17:29:39




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 Re: Airco Torches in reply to John Hallis, 03-07-2001 10:50:45  

Hi John, Some of those part numbers sound familiar. I have had a Victor setup for years. Recently I bought a lot of regulators and torches on ebay. Out of the box of parts I put together a set consisting of and airco torch, a smith regulator and an airco regulator. I have always considered Victor to be among the best. The airco pieces seem to be excellent quality. The torch is well built and works great. I really like the design of the airco regulators. I also got with the lot other airco torch heads, purox torches and some others. All of these brands seem to be good torches. If you are setup for propane, you might want to use that for a while and see if that works for you. It is easier to get and might be cheaper. I prefer acetylene. It sounds like you have a good setup. Most of these things never wear out and can be rebuilt. Just check everything for leaks and you might want to make sure that your regulators have the flash back check safety valves. You might also want to get a little instruction from a welder if you are not familiar with using a cutting torch. good luck,
Keith

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Carlton

11-20-2001 14:30:32




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 Re: Re: Airco Torches in reply to Keith Rat, 03-08-2001 17:29:39  
I need a regulator for propane or mapp gas. The number on the regulator # 806 7014. I saw where you had bought up a bunch. This is an Airco regulator. I think you will know what I need and I hope you can supply. Advise availabliey and price plus shipping.



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John Hallis

03-10-2001 06:19:12




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 Re: Re: Airco Torches in reply to Keith Rat, 03-08-2001 17:29:39  
Thanks for the information guys. I found some additional info that you might also be interested in. Airco is now CONCOA, Controls Corporation of America. Their website doesn't have any torch equip, so I called them. The friendly customer service rep. said they still carry a full line of cutting/welding stuff and is available through welding distributers nationwide. A pleasant surprise, when I listed my part #'s to him, he said they still make it. It's nice to know my rig isn't too old or obsolete. Thanks again.
John

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Bus Driver

03-08-2001 16:11:35




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 Re: Airco Torches in reply to John Hallis, 03-07-2001 10:50:45  
Airco was a respected brand back in the 50's and perhaps earlier. My old Airco outfit specified gas pressure to match the number on the tip, #2 tip, use 2# pressure for each regulator. I cannot say that this is correct for your equipment. Cutting was 5# acetylene, 15-25# for oxygen. Airco made a smaller torch called an aviation torch, if I remember correctly. It was prized for doing delicate silver brazing and the like. I still have one of those. Sorry that I can't help you more.

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