Utility gas line tie-ins
As Arizona grows, so does the web of natural gas infrastructure running beneath it—and connecting new lines to that system takes certified welds and precise tie-ins. Earthquake Welding is equipped to perform utility gas line tie-ins across Phoenix, Tucson, and statewide, delivering welds that meet the strict standards utilities require.
We handle tie-ins for high-pressure steel mains, poly distribution lines, and commercial gas services, following API 1104, ASME B31.8, and utility-specific specs. Whether it’s tying into a transmission main in Gila Bend, or connecting a new commercial service line in Gilbert, we’ve got the procedures, certifications, and field experience to get it done right.
Every tie-in is prepped, welded, tested, and documented—because when it comes to gas, nothing less is acceptable.
Certified tie-ins. Built to spec. Ready for Arizona’s gas infrastructure.
Types of Utility Gas Line Tie-Ins
High-pressure steel main tie-ins
Poly to steel transitions
Poly distribution line tie-ins (HDPE fusion)
Live system welding for in-service connections
Valve set and regulator station connections
Transmission distribution, and service gas system upgrades
Pressure-tested and utility-certified welds and fusions
