RNG-ready utility tie-in welds

Bringing renewable natural gas (RNG) to the grid requires more than just processing—it takes certified welds and piping to connect it to Arizona’s utility infrastructure. Earthquake Welding provides RNG-ready utility tie-in welding services, built to meet the strict codes that utilities demand for gas transmission and distribution.

These tie-ins call for API 1104 and ASME B31.8 certified welds, designed for pressure, integrity, and compliance with DOT and utility standards. Whether the project connects upgraded biogas into a distribution main outside Pinal County or a transmission line feeding the Valley, we weld with the traceability and documentation required for inspection and approval.

We’re set up to handle the tie-in scope—valves, flanges, reducers, and steel-to-poly transitions—so when it’s time to make the connection, gas is ready to flow and the welds are ready to hold.