What must all gas piping be tested with?

In the context of gas piping testing, it is essential to use air pressure to ensure the integrity and safety of the installation. Testing gas piping with air pressure allows for the detection of leaks by applying a controlled pressure that can reveal any weaknesses or failures in the piping system. If there are any leaks, they will manifest as a drop in pressure, which can be measured and evaluated.

Using air pressure is a standard practice in the industry because it is non-combustible, making it safer than testing with natural gas or other flammable substances. Furthermore, this method complies with many building codes and industry standards, ensuring that the installation meets safety regulations before being put into service. Water pressure is not typically used for gas piping tests, as it does not accurately represent the conditions under which the piping will operate, and vacuum pressure is not suitable for testing the structural integrity of gas lines.

In summary, testing gas piping with air pressure is a critical safety measure to confirm the system’s reliability and prevent potential hazards associated with gas leaks.