What is the required test duration for a new welded piping system with a supply pressure of 5 PSIG?

The required test duration for a new welded piping system is essential for ensuring the integrity and safety of the installation. For a supply pressure of 5 PSIG, the recognized standard test duration is indeed 24 hours. This timeframe is mandated to allow for adequate monitoring of the system, ensuring that any potential issues such as leaks are identified and addressed before the system goes into operation.

The 24-hour duration provides a thorough assessment, as it allows for any pressure changes that might occur over time to be detected. This duration is specifically outlined in regulatory guidelines and industry standards to help maintain safety in gas installations.

Other durations, such as 1 hour, 12 hours, or 48 hours, do not align with the standard requirements for a system at this pressure level. A shorter test duration may not adequately enough detect small leaks, while excessively long durations are impractical and typically not required. This emphasizes the importance of adhering strictly to established testing protocols to ensure the safety and functionality of gas piping systems.