Yeah!! My National 8M showed up today!

turtledove53 · #1 2010-02-01, 7:22pm

I finally got my torch today so I can get off of the cutting torch !

But the only problem is...I don't know what my propane / oxy psi settings should be for the S7 tip. The chart that came with it does not show that tip. Anybody here know what the PSI settings should be? I don't want to ruin a brand new torch.

AutEvDesigns · #2 2010-02-01, 7:33pm

I'm on a National with the S7 tip. I'm not sure what you're using for Oxygen, but I almost always have my Propane set at 3 - 4psi, which would mean 6 - 8psi for the Oxygen. You could always turn it up if you can and need to. I would say that would be a safe starting point and you won't have any problems melting glass.

You know the P-O-O-P rule for turning the gas on and off, and when to light the torch, right?

Dale M. · #3 2010-02-01, 7:56pm

The pressure is not finite, the final adjustment to frame characteristic is the knobs on torch...

Dale

turtledove53 · #4 2010-02-01, 8:03pm

Quote:

Originally Posted by AutEvDesigns

I'm on a National with the S7 tip. I'm not sure what you're using for Oxygen, but I almost always have my Propane set at 3 - 4psi, which would mean 6 - 8psi for the Oxygen. You could always turn it up if you can and need to. I would say that would be a safe starting point and you won't have any problems melting glass.

You know the P-O-O-P rule for turning the gas on and off, and when to light the torch, right?

I am using tanked oxygen. Yeppers, got the P-O-O-P rule. Thanks!

turtledove53 · #5 2010-02-01, 8:06pm

Quote:

Originally Posted by Dale M.

The pressure is not finite, the final adjustment to frame characteristic is the knobs on torch...

Dale

Thanks Dale...I had been using 5 propane and 10 oxy on the cutting torch. I was just worried since they had a chart in the box (that didn't include any of the S# tips) that I could cause some damage if I had either or both settings to high.