What is the minimum length of the unthreaded portion of a gas piping outlet extending beyond a patio surface?

The minimum length of the unthreaded portion of a gas piping outlet extending beyond a patio surface must be at least 2 inches. This requirement is established to ensure safety and prevent potential issues with gas leaks or exposure. The unthreaded section is critical because it provides a smooth and reliable interface for connections and helps to reduce the likelihood of damage or corrosion at the threaded part, which could compromise the integrity of the gas system.

A length of 2 inches is practical, as it allows for a safe distance between the end of the piping and the surface, minimizing risks associated with potential drippage or gas buildup close to areas where people frequent, like patios. Maintaining this standard not only helps in adhering to local codes but also promotes safe practices in the installation and maintenance of gas piping systems.