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Tool Talk Discussion Forum

Oxy Acetylene set up

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Super 55

08-20-2007 21:25:20




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I am thinking of investing in a gas set up. I was doing a search and it seems a Victor 100 body and it's accessories would be a good home set up, but what size cylinders to use? I haven't used this kind of set up for about 17 years when I was working in a fab shop. I was not in the welding department, but I did use the equipment from time to time. I can mig, tig and gas weld, (or use to) but I am not familiar with the tank sizes for the gases. We just had the very large cylinders of course, but I couldn't tell you their volume. What would be a good size to have at home? Also, here in BC, you can own cylinders or lease. However, whoever you buy from usually fills them.

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GeneMO

08-22-2007 12:23:55




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 Re: Oxy Acetylene set up in reply to Super 55, 08-20-2007 21:25:20  
You may not be interested, but I have used propane instead of acetylene. Used it for about 40 years, my uncles were doing that back in the late 50's. May not get as hot of a flame, not sure. I just do handy man stuff with mine, like you say, minor cutting, heating, etc. I can braze with it fine. I have a little 40 lb bottle we found some where. A big 100lb would last forever!

Oh you do need a propane ti for the cutting torch.

Gene

Gene

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Super 55

08-22-2007 16:39:10




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 Re: Oxy Acetylene set up in reply to GeneMO, 08-22-2007 12:23:55  
My neighbor uses propane. The set up is a little different, not sure if it was the tips or the body. He says it's not as hot and it uses more oxygen then acetylene.



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MarkB_MI

08-21-2007 19:32:53




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 Re: Oxy Acetylene set up in reply to Super 55, 08-20-2007 21:25:20  
Something no one has mentioned is the the draw-down limitation on acetylene. You're not supposed to draw more than one-seventh of the tank's capacity per hour. Even a small rosebud will exceed this for the smaller tanks. If you go with the biggest tanks you can buy outright, you should be fine. Torch manufacturers usually publish the CFH requirements for their torches, you can calculate the size of tank you need from this information.

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Super 55

08-21-2007 23:55:53




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 Re: Oxy Acetylene set up in reply to MarkB_MI, 08-21-2007 19:32:53  
MarkB, The dealer I went to mentioned that tank capacity problem, saying that I would be sucking up acetone into the body and messing up the valves if I exceeded the 1/7 rule. Good point. I don't think I really need a rosebud. For what I need to head, like the odd rusted bolt, etc. I could heat with the cutting torch.



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MarkB_MI

08-22-2007 18:54:27




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 Re: Oxy Acetylene set up in reply to Super 55, 08-21-2007 23:55:53  
Supe,

Even a cutting torch can draw too much gas for a small tank. According the chart in the link below, a Victor size "0" cutting tip needs 8-10 cubic feet of acetylene per hour. Which means a tank capacity of around 60 cubic feet.

Check out the braxing tip chart too. The larger brazing tips also need a lot of gas.

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IH2444

08-22-2007 09:25:10




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 Re: Oxy Acetylene set up in reply to Super 55, 08-21-2007 23:55:53  
And sucking up the acetone is bad for a few reasons. Not the least of which is that the acetone is a stabilizing agent for the acetone.
KAAABOOM



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IH2444

08-22-2007 09:26:05




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 Re: Oxy Acetylene set up in reply to IH2444, 08-22-2007 09:25:10  
also never operate the torch unless the acetone bottle has been sitting upright for about 1 hour before using....same reason.



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IH2444

08-22-2007 09:26:51




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 Re: Oxy Acetylene set up in reply to IH2444, 08-22-2007 09:26:05  
OOPs Acetylene bottle, not acetone bottle :(



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Super 55

08-22-2007 09:32:22




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 Re: Oxy Acetylene set up in reply to IH2444, 08-22-2007 09:26:51  
I got the idea for sure. I had always been taught never to lay the bottles down because it's dangerous, but I never really thought why. I seem to remember it had to do something about a liquid, but I didn't know that liquid was acetone. Thanks for the info.



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Stan in Oly, WA

08-21-2007 18:22:14




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 Re: Oxy Acetylene set up in reply to Super 55, 08-20-2007 21:25:20  
Hi Super 55,

I leased oxygen and acetylene tanks for a few years and now view it at about the middle of my mental list of Stupid Things I Have Done. It should be fairly easy to divide the purchase price by the monthly lease amount and see how long you can lease the equipment before you will have paid for it. I can't remember why I didn't do that.

There may be some advantages to leasing equipment that I haven't thought of, but it mostly seems that you'd only do it that way if you couldn't spring for the whole purchase at once, or if you had some reason to think would wouldn't need the equipment any more in the near future.

All the best, Stan

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Chester

08-21-2007 15:06:09




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 Re: Oxy Acetylene set up in reply to Super 55, 08-20-2007 21:25:20  
Have had a Victor "Super Range" outfit since 1981. Purchased tanks are 80 cu.ft. Ox. and "B" (40 cu.ft.) acetylene. With no cutting, they are empty at about the same time. Here in Ontario these are the largest that a home owner could purchase. You can see the set up here:



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IH2444

08-21-2007 07:18:43




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 Re: Oxy Acetylene set up in reply to Super 55, 08-20-2007 21:25:20  
Umm the small Victor torches are china made now. I have had a set for 5 years and have been satisfied with them.



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Vern-MI

08-21-2007 06:30:36




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 Re: Oxy Acetylene set up in reply to Super 55, 08-20-2007 21:25:20  
I have the 40 Cu.Ft. bottles and they have to be in a cart because of their weight. I have a set of used Harris regulators, 40 Ft. of hose, several different tips, a cutting and a rosebud head and several goggles for the helpers. The only thing I would change is to buy a 60 Cu.Ft. bottle for Oxygen rather than the 40 Cu.Ft.that I now have as it seems That I use that much more Oxygen than Acetylene. The cost of refilling is going up dramatically. I guess they need to make a good living too.

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JD9295

08-21-2007 05:02:41




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 Re: Oxy Acetylene set up in reply to Super 55, 08-20-2007 21:25:20  
get the vicotr or smith
also go with the (Q) size bottle. I think its 14 cubic ft.
You buy the tanks and they are yours, then you can take them to anyplace that has them and swap for $20 each, at least here thats the price.
I switched both of ours out to this size, easier to handle and if your not a fab shop will do all you need.
Dont take up near as much room on the field truck either

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Ken Crisman

08-20-2007 23:31:57




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 Re: Oxy Acetylene set up in reply to Super 55, 08-20-2007 21:25:20  
I have had a Craftsman set with a rosebud for about 35 yrs . Not the best , but they've done all I want . But if I'd ever buy another set it would be a victor or smith set. My tanks stand about 3 ft high . Not sure of size . I have a back up set of tanks so I don't run out at a bad time . Good luck & God bless, Ken



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chvet73

08-20-2007 22:23:25




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 Re: Oxy Acetylene set up in reply to Super 55, 08-20-2007 21:25:20  
I have 2 sets with the smallest tanks and the next to smallest. Both are fine except if you want to use a large rosebud. The small tanks don"t have a sufficient amount of "umph". I"ve had Victor, Smith and Harris torches. The Victor 100 is the best all around torch. Also has the best parts availability.



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