Guages

The thing to remember is that you don't actually get a dip in or a spike of pressure from CO2 in the marker until the bottle starts running out. Otherwise, you're getting a constant of 850psi (operating pressure for a tippmann) all the way to the valve. The way a pressure spike in the valve with CO2 works is that liquid CO2 under 850psi of pressure enters the valve chamber. When the valve is opened to fire the round, an excessive amount of CO2 expands giving you more propellant behind the ball, similar to say, a magnum round in a real fire-arm having more powder in it. Otherwise, until you start running out of air in the tank, you wouldn't actually see any difference in pressure other than a little bit of a recharge rate where the CO2 moves through the system.

I think he just wants a gauge to measure what the constant pressure in his system is. I.E. whether pressure is spiking or dropping in his system. The problem is, the CO2 will be at a constant pressure until the valve opens. Then you'll see a bit of a spike or a dip from the co2 moving through the system and expanding to fill the void in the valve if you have some liquid in the system, but it will be so fast, you won't be able to properly measure it without forcing the system.

and I've got no problem with week-old posts. It's just the 4 month and year-old ones that are senseless.

Edited by tallen702 - 18 October 2007 at 9:30pm