What pressure indicates that Low Pressure Gas is operationally empty?

In aviation, particularly in the context of gas systems, operational readiness and safety are paramount. Low Pressure Gas systems often utilize pressure gauges to reflect the status of the gas supply. When assessing these gauges, it's important to know the threshold that indicates when a tank is effectively empty and no longer operational.

A reading of 100 psi is commonly recognized as the point where Low Pressure Gas systems are operationally considered empty. This is due to the fact that at this pressure, there's typically insufficient gas remaining to sustain normal operation or efficiency.

Understanding this threshold helps ensure that pilots and crew members can make informed decisions about refueling and system readiness. Levels below 100 psi often indicate that not only is the gas supply depleted, but operational safety could be compromised if continued use is attempted. It is essential for crew members to familiarize themselves with these pressure limits to avoid unintentional operational issues.