Posted May 29, 2011 - 10:50 AM
I have several torch sets a the shop. We use them for everything from fusing and gas welding (brazing), to cutting, and heating to free up frozen parts. I also do shaft repairs with a torch using it a spray weld to build up bad shafts. I have made repairs in the field with a torch and baling wire or coat hangers. You can use the same regulator/gage set for both Propane or Acetylene, but you have to use the proper tip for each gas. MAP gas is another fuel used with torches, I have never used it, but have seen it used in shops that have been around for several years. We use a Rose-Bud heating tip for a lot of different jobs, mainly if you want or need to put a bunch of heat on something quick, or it is a large area you are trying to heat up. I use a rose-bud to preheat Cast Iron before and during the Brazing process.
BTW, If you watch around, you can pick up a torch set in a pawn shop for pennines on the dollar, I have bought several this way and take them to my welding shop to have them gone through before putting them in service.
Hope this helps.