How deep should underground gas piping be buried to ensure compliance?

The requirement for burying underground gas piping at least 12 inches deep is based on safety standards established by various codes, including the National Fuel Gas Code. This depth helps protect the piping from accidental damage, such as from traffic or other disturbances on the surface. Additionally, installing gas piping at this depth minimizes the risk of exposure to physical stressors and environmental factors that could lead to leaks or failures in the piping system.

Choosing a depth of at least 12 inches is also significant for proper drainage, reducing the potential for water accumulation around the piping which could contribute to corrosion over time. It is essential that gas piping is installed following the prescribed guidelines to ensure a safe and reliable gas delivery system.

Options that suggest depths like 6 inches or deeper are insufficient under typical safety regulations, as they do not provide adequate protection against the above-mentioned risks. Until the depth reaches at least 18 inches, while that is above the minimum requirement, it is more than typically necessary unless specified by local amendments or unusual conditions.