CO2 Flow

[5656]

I have to regulate a CO2 tank/bottle to achieve a flow of 500ml/minute. I am looking for a manufacture that can produce a basic preset pressure reducer, that will get the pressure down to a manageable level and would mount to a standard CO2 bottle. On the other end of the line, I would need an orifice that will achieve the desired 500ml/minute. I need to find the simplest, most cost effective way of doing this. I was hoping to be able to use 1/8” hose on the outlet side of the orifice.