CO2 bottle angle

[maddox10]

That is all low pressure. At best suitable for 10 bar.

7 kg of CO2 is 3500 liters of gas.
A double acting 100*200 ram @10bar uses 30 liters per double action. (this is Killerhurtz/Terrorhurtz powerlevel)
Unless you have the rare Norgren Hi Pressure series that can handle 16 bar. Then it is 50 liters.

The biggest Rotary Actuator I have seen in 24 years of work in that branch is close to that. And that was at least 30 kg heavy to close the 12" Hastaloy ball valve.

[Yatcatcher]

Freezing valves seems to be an ongoing issue with CO2, mainly on high flow systems. We tried CO2 fire extinguishers with and without the plastic 'straw' that is screwed into the bottom of the valve. Upside down and right way up and it seemed to make little difference at the low flow levels through a standard 1/4" extinguisher valve orifice. When we started using buffer tanks and higher flow rates then we froze everything up. Make of that what you will Grin!


The hijacking is to do with the rules on heating the CO2 supply. If we used (say) a glow plug in a block of aluminium attached to our valves to stop it from freezing, would that break the rules? Or attaching the valve to an overworked ESC perhaps?