For piping systems located inside a building, what is the maximum operating pressure allowed?

The maximum operating pressure allowed for piping systems located inside a building is 5 psi for systems that are specifically categorized under certain conditions, particularly for low-pressure gas piping systems. This limit is set to ensure safety and prevent leaks, which can pose risks such as potential explosions or gas inhalation hazards. Additionally, the standards emphasized in plumbing codes prioritize the safeguarding of residents within the building and the structural integrity of both the piping system and the building itself.

The maximum pressure specification helps ensure that materials used for piping will not fail under normal operational conditions, thus further enhancing safety and operational reliability. Understanding these regulations fully is crucial for any plumbing professional, as they guide the installation and maintenance of compliant and secure systems.