Willman Posted October 28, 2009 Share Posted October 28, 2009 I know this sounds dangerous and maybe even a little stupid, but I Quote Link to comment Share on other sites More sharing options...
imagedude Posted October 28, 2009 Share Posted October 28, 2009 Propane needs a different type of nozzle and mixer than acetylene as it is much denser and hence harder to mix with the oxygen. Propane may also dissolve acetylene seals and hoses. Quote Link to comment Share on other sites More sharing options...
ThomasPowers Posted October 28, 2009 Share Posted October 28, 2009 Oxy-Propane is *preferred* for cutting! As mentione you have to have propane rated seals in the regulator and propane rated hoses and special tips; but it's cheaper than O-A in use and makes a great cut. However Propane-compressed air won't work for cutting as it's the O2 that does the cutting---had our shop teacher demonstrate by doing a cut and turning off the Acetylene after it was started and finishing the foot long cut with only O2. Quote Link to comment Share on other sites More sharing options...
jimmy seale Posted October 28, 2009 Share Posted October 28, 2009 compressed air-i am thinking with a air compressor, won't work, not enough O2,compressed oxygen had been filtered to remove the nitrogen,etc. from it so it is almost all O2.hope this helps you understand,jimmy. but i think you only need to change the tip to use oxy/prop. Quote Link to comment Share on other sites More sharing options...
Willman Posted October 28, 2009 Author Share Posted October 28, 2009 ok, thanks. that makes sense Quote Link to comment Share on other sites More sharing options...
arftist Posted October 28, 2009 Share Posted October 28, 2009 You do not need to change your regulator, the seals are fine for propane, but you must change your hose and tip. If you do, be sure to get 2 piece tips only. The hose is known as "type T". It is possible to cut with compressed air, but not as it comes from the air compressor. It must be enriched first, and the equipment is expensive. Look into an owner size oxy tank, then you will have no lease. Quote Link to comment Share on other sites More sharing options...
ThomasPowers Posted October 28, 2009 Share Posted October 28, 2009 SOME REGULATORS ARE NOT OK FOR PROPANE! They need to be marked "for all fuel gasses" and if you don't know it's ok get them checked before taking advice on the internet gets you killed or your house burned down! Since I don't know how old or what brand regulators the original poster has err on the side of safety! Note that if your regulators are not ok for propane and you do use them for it and there is a problem your insurance is not required to pay! Quote Link to comment Share on other sites More sharing options...
Willman Posted October 28, 2009 Author Share Posted October 28, 2009 One of my regulators is a harris and says “FUEL REGULATOR,” the second is a no-name-brand and says “Acetylene Regulator.” the first one’s set of hoses says “Acetylene only” and the others hoses say “grade T fuel use.” so I guess I can mix and match. Quote Link to comment Share on other sites More sharing options...
ThomasPowers Posted October 28, 2009 Share Posted October 28, 2009 Sounds like a way to go! Quote Link to comment Share on other sites More sharing options...
RainsFire Posted October 31, 2009 Share Posted October 31, 2009 so to be clear, I could use my cutting torch with propane, and oxygen? I constantly run out of acetelyne.. and this would be excellent Quote Link to comment Share on other sites More sharing options...
Fe-Wood Posted October 31, 2009 Share Posted October 31, 2009 Personally, I would check with my fuel supplier about regs and hoses I intended to use. Not fun to end your day witha bang! I was always told you need different regulators, tips and hoses for propane. Quote Link to comment Share on other sites More sharing options...
arftist Posted October 31, 2009 Share Posted October 31, 2009 (edited) Welding: Adjusting a heating torch, oxy/propanehttp://en.allexperts.com/q/Welding-3487/2009/5/Adjusting-heating-torch-1.htmhttp://www.iforgeiron.com/forum/f7/can-you-use-acetylene-regulator-propane-cylinder-7718/ Edited October 31, 2009 by arftist Quote Link to comment Share on other sites More sharing options...
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