Piping is the circulatory system of a process plant, connecting reactors, exchangers, tanks, and pumps into a working whole. Roben Manufacturing designs and fabricates process piping to the applicable ASME B31 standards and integrates it with the vessels and equipment we build, delivering connected systems rather than disconnected components.
When piping is fabricated by the same shop that builds the vessels it connects, the interfaces line up and the system goes together cleanly. We bring piping into our complete-system projects so that what arrives on site is ready to install and commission.
Piping Engineered to Connect the System
Process piping is designed to the appropriate ASME B31 code for the service — pressure, temperature, fluid, and category all factor into the design. We size the piping, select the materials and components, and design the routing so that the system handles its flow with acceptable pressure drop and accommodates thermal expansion without overstressing the connected equipment.
Material selection follows the service, just as with our vessels: carbon steel for general duty, stainless and duplex grades for corrosion resistance, and nickel alloys for aggressive media. Fabricating piping in the same materials and to the same welding standards as the connected vessels ensures compatibility throughout the system.
Thermal expansion and equipment loads are central to good piping design. Piping that is too stiff transmits damaging loads to the nozzles of the equipment it connects, while well-designed piping accommodates movement and limits the loads on vessels and exchangers. We coordinate the piping with the equipment so nozzle loads stay within allowable limits.
Fabricated piping spools are produced in our shop, where welding and inspection are controlled, and integrated with the vessels and skids in the same project. The system arrives with coordinated documentation and interfaces that fit, reducing field welding and speeding installation.
Why Choose Roben Manufacturing
- ASME B31 design. Piping is designed to the applicable B31 code for the pressure, temperature, fluid, and service category.
- Materials matched to the system. Piping is fabricated in the same materials and welding standards as the connected vessels for full compatibility.
- Nozzle-load coordination. Piping is designed to accommodate thermal movement and keep equipment nozzle loads within allowable limits.
- Shop-fabricated spools. Spools are welded and inspected in our controlled shop, reducing field welding.
- Integrated, ready to install. Piping is integrated with vessels and skids so the system fits and installs cleanly.
Key Features & Capabilities
- Process piping design to ASME B31 standards
- Pipe sizing for flow and acceptable pressure drop
- Material selection from carbon steel to nickel alloys
- Thermal-expansion and flexibility design
- Equipment nozzle-load coordination
- Shop-fabricated, inspected piping spools
- Welding to qualified procedures with NDE
- Integration with vessels, exchangers, and skids
- Reduced field welding through shop fabrication
- Coordinated system documentation
Applications & Industries Served
- Interconnecting piping for reactor and vessel systems
- Skid- and module-mounted process piping
- Corrosive-service piping in matching alloys
- Steam, hot-oil, and utility piping for jackets and coils
- Plant expansions and tie-ins
- Complete process systems requiring fitted piping
Codes, Standards & Quality Assurance
Roben Manufacturing fabricates under a controlled quality system and holds the ASME U Certificate of Authorization, with registration through the National Board of Boiler and Pressure Vessel Inspectors. Every applicable project is supported by material test reports, qualified welding procedures, nondestructive examination records, and complete documentation.
Relevant standards and resources include: ASME Boiler and Pressure Vessel Certification; ASTM International.
Frequently Asked Questions
Request a Quote on This Project
Contact Roben Mfg., Inc. to discuss your project specifications, timeline, and material requirements.
Request a Quote