A piping system must be sized and installed to meet what demand?

The proper sizing and installation of a piping system for liquefied petroleum gas (LPG) need to accommodate the maximum expected demand. This is crucial because the maximum demand reflects the highest flow requirement that the system may experience under peak operational conditions. If a piping system is only sized for average or minimum demand, it may become insufficient during periods of high use, which could lead to inadequate gas supply for appliances and systems, potentially causing safety hazards or operational failures.

By designing the piping system to handle maximum demand, you ensure that it can adequately supply the gas flow required during peak usage times, which helps maintain consistent pressure and performance throughout the system. This adherence to maximum demand sizing is a fundamental principle in the NFPA 58 code, which emphasizes the importance of safe and reliable infrastructure for gas distribution.