What is the minimum test pressure for gas piping in residential homes?

The minimum test pressure for gas piping in residential homes is established to ensure the safety and integrity of the system before it is put into service. A test pressure of 3 psi is typically required for residential gas piping systems. This pressure is sufficient to identify any leaks or weaknesses in the piping and fittings, allowing for necessary repairs or adjustments to be made.

Conducting the pressure test at this level provides a balance between safety and practicality. Testing below this pressure may not be adequate to ensure that all connections and joints are sealed properly, potentially leading to dangerous situations if undetected leaks exist.

While options representing 1 psi, 2 psi, and 4 psi may be relevant in different contexts or different types of gas tests, the established requirement for residential gas piping specifically points to 3 psi as the standard benchmark for testing.