What is the operating pressure limit for natural gas piping systems regulated by the IFCG?

The operating pressure limit for natural gas piping systems regulated by the IFCG (International Fuel Gas Code) is set at 125 PSIG. This limit is established to ensure safety and reliability in the distribution of natural gas within these systems. A maximum pressure of 125 PSIG allows for adequate margin in the system operation while minimizing the risk of over-pressurization, which could lead to leaks, equipment failure, or even catastrophic events.

The specified limit is also important for ensuring compatibility with residential and commercial appliances, which are designed to operate effectively within these pressure constraints. Operating above this limit could potentially compromise the integrity of the piping materials and fittings used, which are tested and rated for lower maximum pressures. Additionally, maintaining the pressure below 125 PSIG helps to align with typical codes and standards adopted across various jurisdictions, thus promoting uniform safety practices in the gas fitting profession.

Understanding this maximum pressure is crucial for gas fitters to ensure compliance with safety regulations and provide safe installations for users.