? on O/A torch regulator

[chris madden]

I have a radnor torch kit and in the manual it all go's by cubic feet per hour and on the reg it go's by kpa and psi is kpa the same as cubic feet per hour?

[Donald Branscom]

Nice shop ! Very nice.

About your question.
PSI,KPI (metric) and cubic feet are all used, but different.
The regulator usually shows two scales.
as far as the torch setting for actyelene Obvioously NEVER exceed 20lbs pressure.
Thats why the actylene shows a red zone on the guage.

The torch settings for the size of tip or cutting torch should be listed in your owners manual but if not, any welding store has a small pocket guide that you can get as a reference.
Also when adjusting the flame on the cutting torch, fine tune the shape of the pointed flame with the cutting lever depressed.

Never get any petroleum product near your oxy rig.
Not being condescending, just covering the bases.

[Sandy]

I have a radnor torch kit and in the manual it all go's by cubic feet per hour and on the reg it go's by kpa and psi is kpa the same as cubic feet per hour?

Kilopascal(s), kpa, is a pressure scale also. Some of the Aussies here can probably give you a good run down of kpa and settings.

[William McCormick Jr]

Originally Posted by chris madden

I have a radnor torch kit and in the manual it all go's by cubic feet per hour and on the reg it go's by kpa and psi is kpa the same as cubic feet per hour?

According to Wikipedia 1 kpa equals 0.14504 psi.

It has nothing to do with cubic volume in itself. But if you know your pressure and your orifice and what you are putting through the orifice, you can conclude the cubic feet an hour in conjunction with the pressure.

Sincerely,


William McCormick

[chris madden]

so I sould go off of psi ?

[Sandy]

so I sould go off of psi ?

Most of the tip charts I've seen are referenced in psi. PSI is the US standard (still) . All of the talk you hear will be in psi.

[chris madden]

Originally Posted by Sandy

Most of the tip charts I've seen are referenced in psi. PSI is the US standard (still) . All of the talk you hear will be in psi.

ok thanks

[William McCormick Jr]

Originally Posted by chris madden

ok thanks

I was taught this by my father.

You start at seven psi of acetylene at the regulator. You start at 40 psi at the regulator for oxygen. For cutting this works well. And you can also use a welding torch tip as well at these pressures.

I was taught to light a torch by my shop teacher actually. He said you turn up or down the acetylene till the flame just does not leave the torch.

Add oxygen until you get neat needle blue flames. But no harsh sounding or vibrating blue needle flames.

Shut off the acetylene first when you are done.


Sincerely,


William McCormick

[clark-kentski]

Cris that 10 mfa is a pretty good size rosebud.What size acetylene tank do you have? there is a saftey rule that says do not use more than 1 seventh of your tanks capacity per hour! if no one else post first ill look up the settings for that tip for ya in the morning,be safe

[clark-kentski]

Good morning, from the Victor manual type mfa heating nozzles tip size 10 acetylene12-15 psig oxygen 30-40 psig acetylene cubic feet per hour is 30min. 100max. as you can see it would be easy to break the 1/7 rule. personally i use a #6 tip,be safe