What is the minimum test pressure required for newly installed gas piping?

The minimum test pressure required for newly installed gas piping is established to ensure the integrity and safety of the system. A test pressure of 3 psig is sufficient to detect leaks and ensure that the piping can handle the pressures it will encounter during normal operation. This standard is crucial because it allows for a safety margin above typical operating pressures, ensuring that the system is leak-free before it is put into service.

Piping systems are tested to confirm that there are no leaks within the newly installed segments, and a test pressure that meets or exceeds 3 psig helps ensure that any potential issues can be identified before the system is operational. Using a pressure above the established minimum helps in the detection of smaller leaks that may not be noticeable at lower pressures.