crossfire 47ci....seeping? leaking?

[drx975]

Ok well today I played with my crossfire and got around 750 out of a 47ci, yay. But I was just wondering, are they supposed to leak real slow or something? Because my tank was at 3100 psi, then after 30 minutes it was at 3000, then after 5 hours it was at 2900, where it pretty much stayed. Do the tanks kinda leak out the excess air because they just cant hold that amount of pressure? I was just wondering if this was normal, and NO it was not left on-gun over this period of time.

[BlackVCG]

It's not leaking. It's just the bottle cooling down from getting filled. When the tank gets filled fast, you'll notice it get real warm. This temperature increase causes the pressure in the tank to increase. When it cools off to the outside temp, the pressure drops. This is why you see it drop about 200psi and then hold steady.

[Magyster]

Your tank is not made to be filled to 3100psi! It's a 3000psi tank! That is why it is leaking!

[drx975]

Thanx that makes sense about the cooling down part, I didnt think of that at first.

[MikeCouves]

Not necessarily. The burst disk on my steel tank is set at 5000 psi so, that's alot more than 3000. You are recommended to have a certified air tech only fill a tank to more than it's required pressure. But, they may have designed it to blow off when it goes over 3000.