What is the maximum design operating pressure for a gas piping system in a residence?

The maximum design operating pressure for a gas piping system in a residence is appropriately set at 5 psi. In residential settings, such pressure levels ensure that the system remains safe while still providing adequate delivery of gas to appliances.

Piping systems designed for lower pressures, such as options citing 2, 3, or 4 psi, are primarily for specific applications and may not meet the performance requirements of all residential appliances. A design operating pressure of 5 psi supports the necessary flow rates and provides a balance between safety and performance. This pressure is typically consistent with building codes and standards, which mandate specific pressure limits for residential gas systems to ensure efficient and safe operation.