What is the blow out plug pressure for an aluminum dive tank?

The blow out plug is a safety feature found in aluminum dive tanks specifically designed to prevent excessive pressure buildup that could lead to tank failure or explosion. For aluminum dive tanks, the blow out plug typically activates at a pressure of 5000 psig, which means it is calibrated to release gas when the internal pressure reaches this critical threshold, thereby ensuring that the tank does not exceed its maximum safe operating limits.

This pressure ensures that if there is a failure in the tank or a rapid increase in temperature, the blow out plug will safely vent the gas rather than allowing the tank to become a projectile or rupture dangerously. Understanding the function and correct pressure rating of these safety features is vital for all divers and dive supervisors to ensure safety during diving operations.

The other pressures listed (3000, 4000, and 6000 psig) do not accurately represent the standard for blow out plugs in aluminum tanks, which is specifically set at the 5000 psig threshold to maximize diver safety and minimize the risk of catastrophic failures.