What happens if liquid LP-Gas pressure develops between shutoff valves?

When liquid LP-Gas pressure develops between shutoff valves, the correct outcome is that it is released to the atmosphere. In systems where liquid propane is present, maintaining proper pressure is crucial for safe operation. If an abnormal pressure condition arises between the shutoff valves and there’s no means of controlling it, the system must vent the excess pressure to prevent damage or failure of the components. This release helps safeguard the integrity of the system and prevents potential hazards associated with high pressure, such as ruptures or system breaches.

The focus on safety in propane systems emphasizes the necessity for venting configurations that direct excess pressure safely to the atmosphere, underlining the importance of adhering to established safety protocols. While other options may cite various concerns related to liquid propane systems, the fundamental reason for releasing LP-Gas to the atmosphere hinges on preventing pressure-related incidents and ensuring safe conditions within the piping system.