Look what I scored...

[TLunn]

FOR FREE !

Victor torch, hoses, gas tank, oxy tank, gauges, off brand MAP/oxy torch / hoses, tank holder.

Tanks are from local PRAXAIR dealer and full. I doubt I'l have to fill them soon...but whats involved in taking posession of some one elses tanks?

These were given to me by a neighbor, they were his sons-who he had a falling out with.

The tanks were in his garage for ~2 years and the son said he didnt care what the father did with them. So knowing I recently got into welding he offered them to me.

what do I need to do to "take ownership" of these tanks, or is it no problem?

TIA, Tom












Now, I install the gauges, open tanks fully....then how far open for the torch valves for the gas/oxy? to heat and for cutting?
Its been 25 years since i used a torch and i need a primer

[vicegrip]

I have some praxair tanks , They will likely fill (without question) they are more conserned with just filling their tanks only....I also have airgass ....same B.S. inthis area.....

I have freinds and cohorts in other regions , and it's no biggy , (tank origin)

Praxair fill price around here is tied for highest

In the next town the other guy will fill them for me , ssshhhhhh!

[vicegrip]

FOR FREE !

Victor torch, hoses, gas tank, oxy tank, gauges, off brand MAP/oxy torch / hoses, tank holder.

Tanks are from local PRAXAIR dealer and full. I doubt I'l have to fill them soon...but whats involved in taking posession of some one elses tanks?

These were given to me by a neighbor, they were his sons-who he had a falling out with.

The tanks were in his garage for ~2 years and the son said he didnt care what the father did with them. So knowing I recently got into welding he offered them to me.

what do I need to do to "take ownership" of these tanks, or is it no problem?

TIA, Tom












Now, I install the gauges, open tanks fully....then how far open for the torch valves for the gas/oxy? to heat and for cutting?
Its been 25 years since i used a torch and i need a primer

only open the acetaline tank 1/2 to 3/4 turn , just a general safety practice so one crank of your wrist can shut it down pronto!

By the way to all , the Airgas guy said last time, there will be no more buying (owning) a 300 c.f. argon tank any more....????? ....and that further this will be industry wide...

true or not...I don't know

[Zrexxer]

Now, I install the gauges, open tanks fully....then how far open for the torch valves for the gas/oxy? to heat and for cutting?
Its been 25 years since i used a torch and i need a primer

Open your oxygen cylinder completely, as it's a backseating valve and will leak around the stem if partially open. However, do not open your acetylene valve more than 1/2 turn or so. You need to be able to cut the fuel off with one twist if something goes awry.

[tigman]

Tom, your tanks are probably on a rental contract and not owned. You might find when you go in to have them filled if they are leased that you will either have to sign a rental sgreement for the tanks or they will keep them and you will be without tanks.

Scott

[MAC702]

Does it say Praxair around the valve collar or just on the label? I bought a set of tanks in Phoenix that were Praxair on the label. When I exchanged them at Airgas, the dock lackey goes, "Oh, I dunno, these are Praxair..." So it took the label off right in front of him, and said, "Now, they're Airgas; change em."

Oxygen and all high-pressure cylinders need to be opened fully to seat, as mentioned. C2H2 needs to be able to close in a hurry and is not at nearly the same pressure, so one twist is plenty.

[TLunn]

Thanks to all for the info,

Mac, it says-stammped into the Oxy cylinder on the collar" UC Corp-LINDE", and has a few PRAXAIR stickers on it.

The acetylene has no stamping, just prax stickers.

What would this setup cost new?

How do you adjust the torch for heating & cutting? wide open air and just enough ace.?

Thanks, Tom

[MAC702]

Mac, it says-stammped into the Oxy cylinder on the collar" UC Corp-LINDE", and has a few PRAXAIR stickers on it.

The acetylene has no stamping, just prax stickers.

What would this setup cost new?

How do you adjust the torch for heating & cutting? wide open air and just enough ace.?

You should be able to exchange them; old defuct company stampings are generally customer-owned cylinders anymore. I have a Union Carbide and a Silver State Supply (Nevada co. bought out by Airgas) in my arsenal.

Those look about $3-400 in cylinders alone to buy.

[ctardi]

Thanks to all for the info,

How do you adjust the torch for heating & cutting? wide open air and just enough ace.?

Thanks, Tom

No, I'm sure there are a few ways to do it, but I open acetaline enough to give me a 6-8" flame, then add oxy until I get the approprate flame for what i'm doing. Some of the other guys can give you better instuction than I can...

[hankj]

Tom,

Somewhere on the barrel of that torch handle will be a model #. It looks like an older Journeyman - a 315C handle. If so, it uses series 1 cutting tips.

Assembly: crack the O2 valve then close it. That cleans out any crud from the valve assemble. Mount the regulator, and tighten it well. Spin the adjusting screw all the way out (counterclockwise) until the tension is off the spring. open the cylinder vale slightly, then close it. Note the high pressure gauge reading. Leave it for ten minutes, and recheck it. If it hasn't dropped, then you are leak free! Do the same with the C²H² tank and regulator.

Next, wipe down the hoses with a damp rag and visually inspect them for damage. Hook them up to the regulators and the torch; close the torch handle valves. Open the O² tank all the way. Open the acetylene tank valve 1/2 - 3/4 of a turn. Turn in the regulator adjusters (clockwise) until the low pressure gauges read 10 lbs. Noe unscrew the adjusters until there is no spring pressure. Leave it like this for ten minutes and check the readings. If they have dropped, you have a leak on the low pressure side at one of the hose connections. if any reading goes up, the regulater needs repair.

When it all checks out, you're ready to fire it up. Look at this tip chart, and set the pressure according to the tip size on your cutting attachment. This chart shows 5-PSI for acetylene for 000 - 0 size tips; I never go over 3-PSI for those sizes. It's all you need. Open the oxygen torch valve and set the regulator pressure; close the valve. Do the same for the acetylene. Now the hoses are purged and the pressure is set.

Open the acetylene valve on the torch handle 1/8 turn and light the torch with a spark lighter. Increase the acetylene flow until the smoke clears and the flame just "jumps" away from the tip; back off the pressure 'till the flame just returns to the tip. Add oxygen until the flame is "neutral" - a nice, clean, inner-cone that is nearly white in color.
Hit the cutting oxygen lever and make sure the pre-heat flames don't change. Hold the pre-heats 1/8" from the steel you are going to cut. When the steels turns bright red, slowly press the cutting oxygen lever all the way down and move along the cut line. Travel speed is something you'll figure out for yourself pretty quick. If you keep loosing the cut, slow down. If the cut keeps closing behind you, speed up.

Shut donw in the reverse - oxygen off first, then acetylene.

Acetylene (C2H2) as packaged for welding is safe if handled correctly and used as intended. Acetylene becomes very shock-sensitive when compressed to pressures greater than 25 PSIG. To allow storage at higher pressures, welding acetylene tanks are filled with a porous “sponge” which is saturated with liquid acetone. Acetone will absorb acetylene gas at a rate of 1/7 of its volume per hour. The solution of acetylene in acetone is stable at higher pressures. It takes 7 hours to fill an acetylene tank.

By the same token, the gas can only be withdrawn from the tank at the same rate as it was filled. Attempting to withdraw greater than 1/7 of the tank volume for more than a few minutes will result in liquid acetone being withdrawn from the tank. Liquid acetone will quickly eat away the diaphragm of the acetylene regulator, allowing liquid acetone at full tank pressure to enter the hoses and torch.

Acetylene discharged into air (or an oxygen/acetylene torch) at pressures greater than 15 PSIG may cause the gas molecules to disassociate, resulting in free hydrogen gas, which is highly explosive. That’s why the “red line” on acetylene gauges is 15 PSI!

When transporting acetylene tanks, they should remain upright. If they are laid down for any reason, they should be allowed to remain upright for at least 30 minute before use.

When deciding what tips or multi-flame (rosebud) heating nozzles to use, be sure that the hourly consumption rate in cubic feet does not exceed 1/7 of your tank volume. Large (#8 and larger) usually require a manifold array of acetylene tanks to provide the required volume.

Hope all this helps.

Hank

[TLunn]

thanks ctardi,

and Hankj, just what I was looking for, muy gracias!