preset output pressure question

[marc]

i know what output pressure is I know the emag uses 600-800 psi and i know the difference between preset and adjustable tanks my question is what is the preset output pressure for a pure engergy tank? what is the average perset output pressure?

[markhauguel]

they are supposed to be around 800 but I have one that is kinda low around 675. I have looked into it and there appears to be a spring that sets the pressure and the consistancy of the spring drives the pressure. you can only change the spring by pulling the reg off the tank. please check around and make sure about this. I didn't pull the reg off my tank to check I just put up with it and I also got a big tank to use also.

[xmetal2001]

most presets tanks are 800 to 850
crossfire is making some new tanks that are preset at 450