According to the NFPA 54 National Fuel Gas Code, what is the maximum operating pressure for regulated gas piping systems?

The maximum operating pressure for regulated gas piping systems, as specified in NFPA 54 National Fuel Gas Code, is 125 psig. This pressure limit is established to ensure safety and reliability in gas distribution systems while minimizing the risk of leaks, failures, or other hazardous conditions that could arise from operating at higher pressures.

Maintaining a maximum operating pressure of 125 psig allows for consistent performance in typical residential and commercial applications, while also adhering to the code's safety standards. This standard is critical in ensuring that the design and installation of gas piping systems are done correctly and that they can handle the pressures they are subjected to without the risk of compromising their integrity or the safety of those around them.