CO2 bottle angle

[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?