/diy/ - Do It Yourself

I want to end with 10 to 20 liters per minute of an inert gas (argon, nitrogen, etc.) flowing out of a hose and work backwards from there to specify the equipment I will need.

As far as I know, the chain of items goes:
*A tank full of my target gas (with a CGA 580 connector for argon, nitrogen, etc.)
* Pressure regulator (dual-stage?) to step down the very high tank pressure to something more reasonable
* Inlet connection (CGA 580)
*Outlet connection (???)
* Hose of some kind
* Flow control valve
* Flow meter or flow gauge (which?) to measure what my flow is

I know there's no direct correlation between liters per minute and psig, but this leaves me wondering precisely HOW to select the equipment I need to get the final flow I want.

I've only taken a couple of welding classes and I thought that welding will be a good place to start with my little backyard experiment.

If this isn't the right forum or I am using the wrong terminology, please correct me. I am happy to order books about the topic and read if there are appropriate ones.