Are systems using LPG cylinders designed to admit liquefied gas into other parts of the system allowed?

The correct answer highlights the critical safety protocols in the use of Liquefied Petroleum Gas (LPG) systems. LPG systems are specifically designed to contain and manage the gas in ways that ensure safety, prevent leaks, and control pressure. Allowing liquefied gas to enter other parts of the system raises significant safety risks, including leaks, pressure buildup, and potential explosion hazards.

One of the core principles of LPG system design is that the fuel should remain in a controlled state until it reaches the appliance designed to utilize it. This ensures that any modifications or adaptations to the system do not compromise the integrity or safety of the entire setup. Admitting liquefied gas into other system components is against established safety standards and best practices in LPG installations.

Recognizing that the other choices might suggest situations that can compromise safety emphasizes the importance of strictly adhering to guidelines established by organizations such as the American Boat and Yacht Council (ABYC). Systems specifically designed for LPG should maintain a configuration that avoids any possibility of inadvertently introducing liquefied gas into areas not intended for it. Hence, the absolute answer to this question is that such practices are not allowed.