What is the maximum operating pressure of piping systems covered under NFPA 54?

The maximum operating pressure for piping systems covered under NFPA 54, which is known as the National Fuel Gas Code, is indeed set at 125 psig. This standard outlines the design, installation, and maintenance of natural gas and propane systems in order to ensure safety and reliability.

The designation of 125 psig reflects the typical working pressure for various gas appliances and systems used in residential and commercial applications. It is essential for operators and installers to adhere to this limit to prevent unsafe conditions such as leaks or failures in the gas piping system. Understanding this value ensures compliance with safety regulations and the effective functioning of gas-operated appliances.

By setting this maximum pressure, NFPA 54 helps to protect both the infrastructure and end-users from the risks associated with over-pressurization, including potential hazards like explosions or fires. Thus, the focus on maintaining a maximum of 125 psig is integral to promoting safe practices in the use of gas systems.