filling tanks

mr. kill · 10-16-2006, 04:54 PM

first off what is hydrotested and how do you fill these up?
this might sound dumb but i have never done it before and i would like to know!
also is there such a thing called airsmith if so how do you become one?

WeltCollector · 10-16-2006, 05:02 PM

Hydrostatic testing is done by placing the tank in water and filling the tank to 5/3 of its working pressure. The amount of displaced water shows how much the tank deforms under the pressure. After the pressure is released the water displacement is again measured to see if the tank returns to it's previous volume or at least within 10% (I think). This is a measure of the tanks elasticity and shows if a tank is more likely to fail due to metal fatigue. If the tank passes then any paintball or dive shop setup to fill the tank can do so. Ask you local paintball store about how to get it hydrostatically tested.