Originally Posted by die.another.day
If you put 6000 psi in a tank thats rated for 3 or 4 then yes it will blow up like a grenade
You're assuming the pressurization is instantaneous. If your input source is running at 6000psi, that doesn't mean that your tank is instantly going to 6000psi when you fill it. The air entering the tank at 6000psi drops to a significantly lower pressure as it expands to fill the empty space in the cylinder. As this space is filled, the pressure rises. That's why your gauge climbs from empty to full instead of just snapping to full when you fill your tank. The burst disk will blow, although the question becomes, will it vent faster than the fill station can supply air?