Now that I have several of forklift propane tanks, I would like to start cutting stuff with oxy-propane instead of O/A. I think that I need an adaptor for propane tank to acetylene regulator, or something of the sort. Does anybody know what that stuff is and what it is called. Thanks
Fork lift tanks have a float valve that only allows propane to go out the valve when the tank is laying down in a certain orientation. And then only liquid propane comes out. The regulator system in the forklift warms and vaporizes the propane just before it reaches the carburetor.
You want to get a regular commercial propane tank that sets upright and has the regulator connection on the top.
Some forklift tanks have a vapor connection, and a liquid connection. It is better to run from a large normal propane tank.
5 gallon (20 lb.) BBQ tanks have flow limiters that choke the flow after a while if you have a high draw.
I love Propane for cutting and nothing beats it for large rosebud tips.
You should use T-grade hoses for propane, but acetylene (R-grade) hoses will work, they just won't last as long.
The torch and regulators are fine as long as you can get a POL adapter for the forklift bottle. The POL connection is standard for all propane and acetylene bottles.
You will need propane tips for the cutting torch.
The reason most people don't like propane for cutting is that they set the flame wrong. If you set it so it looks like an acetylene flame it will not work. You need to run your propane at 5 psi, and keep turning the flame up until your fuel is maxed out on the torch. You need to increase the oxygen until the flame is very loud and very pale.
Also you need to float the tip higher off the metal than with an acetylene tip.