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newbie oxy acetylene cutting question

I'm an ocassional welder, done some stick and some wire feed. Just picked up a victor oxy acetylene welding/cutting setup ( i think it's the journeyman) and bottles. I really want to cut some 2 7/8" OD 1/8" pipe. I turn on the acetylene 3/4 turn and oxygen all the way and one turn back, then on the cutting attachment, I turn on just the acetylene and light it up. It lights up, but when I let in some oxygen the flame dies out. Any suggestions on using this setup will be appreciated, i.e. the regulator pressures I should be cutting the pipe at.

Thanks,

Sam

Reply to
Rancher Sam
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For cutting 1/8" wall pipe you should be using an 000 tip, or at most a 00 tip. Your regulator settings are likely the culprit.

Here is a Victor tip chart which will show you the recommended regulator settings:

Victor Acetylene Cutting Tip Chart

- Cutting Tip Series 1-101, 3-101, 5-101

METAL TIP OXYGEN FUEL SPEED KERF THICK. SIZE PSIG PSIG I.P.M. WIDTH 1/8 000 20-25 3-5 28-30 .04" 1/4 00 20-25 3-5 27-30 .05" 3/8 0 25-30 3-5 24-28 .06" 1/2 0 30-35 3-5 20-24 .06" 3/4 1 30-35 3-5 17-21 .07" 1 2 35-40 3-6 15-19 .09" 2 3 40-45 4-8 12-15 .11" 3 4 40-50 5-10 9-12 .12" 4 5 45-55 5-10 8-11 .15"

Grant Erwin

Reply to
Grant Erwin

My bet is that you forgot to open the oxygen valve at the handle all the way and control the oxy at the torch valve. You don't need much more than 20 psi oxy since the material is so thin. I like to go small on the tip size.... Zero or yes... even double zero. Randy

Thanks,

Sam

Reply to
R. Zimmerman

sound like you need to run some oxygen through the line to clear the air out before you light the acetylene.Just push the cut lever for 10 seconds or so (depending upon length of hose) to clear the line,then light the torch.

Reply to
digitalmaster

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