RNG Pipeline Tie-In Welding in Arizona

As more renewable natural gas (RNG) projects come online in Arizona, the critical connection point is the tie-in. Earthquake Welding provides certified RNG pipeline tie-in welding, delivering pressure-rated, code-compliant welds that link RNG production to utility infrastructure.

These connections demand API 1104 and ASME B31.8 certified welds, built to handle the pressure, flow, and inspection requirements of utility mains and transmission lines. Whether it’s a biogas facility in Pinal County or a future RNG feed near Maricopa, we’re equipped to handle the tie-in scope—valves, reducers, flanges, and steel-to-poly transitions.

When RNG is ready to flow, our welds are ready to connect it to the grid—built to spec and built to last.

Certified welds. RNG connected. Utility ready.

Capabilities

High-pressure pipeline welding
API 1104 certified welding
Boiler room pipe welding
Pipe welding for utility rooms
ASME B31.3 and B31.8 welding
Piping system upgrades and retrofits
Stainless steel pipe welding
Metal Fabrication
Carbon steel pipe welding
Utility gas line tie-ins
Alloy pipe welding
Live gas line welding
On-site pipe welding service
Regulator station piping
Pipe spool fabrication
Utility Gas
Pipe welding for shutdowns/outages
Cathodic protection welds (anode connection)
Corrosion repair welding
Gas pipe rerouting and upgrades
Pipe section replacements
Ethanol and biofuel line welding
Pipe welding for compressor stations
Certified RNG distribution pipeline welding
RNG facility piping and pressure testing
Commercial HDPE gas line welding
RNG-ready utility tie-in welds
Polyurethane gas line installation
RNG pipeline tie-in welding
Poly gas line welding/fusing for RNG facilities
Mobile pipe welding and repair
Petroleum pipeline welding
RNG utility gas upgrades and service connections
Meter and regulator assemblies for RNG systems
RNG gas line installation and fusion welding
Fuel terminal pipe welding
Natural gas line installation
Loading rack piping and welding
Natural gas line repair
Aviation fuel system welding
Emergency pipe welding
Pipe welding for gas lines
Tank farm piping systems
HVAC chiller line welding
Diesel line welding and repair
Mechanical room pipe welding
Welding for chiller piping systems