Most gas piping systems are rated for what maximum service pressure?

Most gas piping systems are commonly rated for a maximum service pressure of 1050 kPa (150 psi). This standard is established to ensure safety and efficiency within gas distribution systems, allowing for reliable operation while minimizing the risk of leaks or ruptures that can occur at higher pressures.

Gas systems, particularly those used in residential and commercial applications, typically operate at this pressure to accommodate the demands of gas appliances while adhering to regulatory safety standards. The rating of 1050 kPa strikes a balance between being adequate for operational needs and maintaining a high safety margin to prevent hazards associated with over-pressurization.

Lower pressure ratings, such as 700 kPa (100 psi) or 350 kPa (50 psi), are also used for specific applications or systems, but generally, the 1050 kPa (150 psi) rating is more widely accepted as the maximum for typical gas service installations, making it the correct choice in this context.