Custom Pressure Vessels – Design & Fabrication

Custom Pressure Vessels – Design & Fabrication
Project Experience
We are experts in the design and manufacture of reboilers and other shell and tube heat exchangers.
  • Distillation Columns
  • Electro-polished Tanks
  • Polished Tanks
  • Process Skids
  • Quick Opening Hatches 
  • High Pressure and Heavy Walled Vessels
  • Towers
Pressure Vessel Code Compliance
Riggins Company is an ASME Code fabrication shop and we hold Section VIII “U” and “U2” stamps as well as National Board’s “R” stamp. All of our welders are qualified to perform ASME code fabrication work; our quality control program applies this stringent set of fabrication standards to every job; even those jobs that don’t require it.
Design and Fabrication Services
Our in-house engineering team’s expertise in heat and thermal transfer equipment enables us to provide our customers a broad range of solutions including:
  • Pressure vessel engineering and fabrication of custom pressure vessels for new facilities and pilot plants
  • Design solutions requiring finite element analysis, mechanical or thermal design capabilities
  • Build-to-print replacement pressure vessels for existing facilities
  • Use wide array of materials including stainless steel, Duplex stainless steel, copper alloys, copper nickel, Monel, Inconel, and Haynes Alloys
  • On-site installation, piping, rigging, and ASME repair
Industry Experience
Riggins specializes in the design, fabrication, installation, and repair of mechanical equipment and process equipment for the following industries:
  • Chemical and specialty chemical
  • Energy and power plants including coal gasification plants, nuclear power plants, and power generation facilities
  • Military, defense, and shipbuilding
  • Petrochemical
  • Pulp and paper
  • Waste water treatment plants (WWTP) and water treatment plants (WTP)


Hydrostatic Test Systems for Navy and Subsea Applications

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Custom To The Core

Riggins brings best practices and expertise from over 35 years of experience that enables clients to see things differently and with greater clarity.

See how we have re-engineered our process.

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