Compressed Air in a Co2 Tank

[Tao]

WHOA!

The rating on the tank is 1800 psi so that it can safely deal with all but the most extreme pressures from high temperatures. Yes the CO2 may only have 850'ish normally but the tanks were tested at 5/3's of 1800 and certified for 1800 based on that testing. And the tanks don't specify what sort of liquid or gas makes that pressure. So technically and legally you'd be fine to swap out the basic pin valve for a regulator and run the pressure up to a max of 1800 and the reg would hold it down to the 850 normal standard.

But you're right that it would not be safe over the long haul to fill them to 2K.

But with Wevo (and I'm sure a few other outlets) selling 13 and 22 ci 3000 psi tanks why would you bother with all this? You'll need a reg to take the higher pressures regardless and the cost of the tank by itself isn't that much higher than a CO2 tank.

Well wafling across the topic won't prevent doing something dumb. Being very clear even if it appears excessive should hammer the message home.

What scares me is I have seen alot of CO2 tanks with 3k burst disks when I know that these tanks are rated for way less than that (I don't know the exact number). Anyway if he has a 3k burst disk he would fill it to 2k over and over and once he thinks everything is fine, the tank will finally rupture.