|From:||Peter Arundel <pureteenlard-at-hotmail.com>|
|Subject:||RE: psi [TANKS]|
|Date:||Mon, 1 Oct 2007 22:01:57 +0100|
Yes, but CO2 and compressed air are very different animals. CO2 when compressed turns to liquid and retains a fairly constant gas pressure above the liquid level. As you use gas, the pressure falls and as the pressure falls the liquid CO2 converts to gas and restors the pressure. The action of going from liquid state to gaseous requires energy in the form of heat so the bottle 'chills down' as you fire. Fire quickly enough and your bottle becomes coated with condensation and, if you keep on wit the rapid firing, with frost. Once all the liquid has evaporated you're left with, roughly, 800psi in the tank.
For the next shot.
Subsequent shots will lower the pressure each time until, quite quickly, there isn't enough gas to cycle the guns action even if there is enough to actually fire a ball.
With just 250psi in your tank I would guess that you could maybe fire two or three shots at most.
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