Which pressure level is considered high for residential gas applications?

In residential gas applications, a pressure level exceeding 0.5 psi is generally regarded as high. This designation is important because gas appliances commonly operate at lower pressures, ensuring safety and efficiency. Typical residential natural gas systems fill pipes, regulators, and appliances at pressures around 0.2 psi or 0.25 psi, which are considered low pressure.

When pressures rise above 0.5 psi, the system design and safety measures must be substantially more robust to manage the increased risk of leaks, potential damage to appliances, or dangers related to gas buildup. Therefore, recognizing any pressure level above 0.5 psi as high underscores the need for special attention to materials used in pipelines, fittings, and the need for more stringent inspections and regulations to maintain safety and operational integrity within residential settings.