Roben Manufacturing designs, fabricates, and code-stamps pressure vessels to ASME Boiler and Pressure Vessel Code Section VIII, Division 1, and to the European Pressure Equipment Directive (PED 2014/68/EU). From the first design calculation through final hydrostatic test, every vessel is engineered to satisfy the governing code, the customer's process conditions, and the documentation requirements of the Authorized Inspector.
Whether you need a single ASME U-stamped vessel for a domestic plant or a CE-marked, PED-compliant unit for export, our engineering group prepares the design package, runs the required calculations, and carries the project through National Board registration. The result is a vessel you can install with confidence and defend during any future inspection or audit.
Code-Compliant Pressure Vessel Design and Fabrication
ASME Section VIII, Division 1 establishes the rules for design, materials, fabrication, inspection, and testing of pressure vessels operating above 15 psig. Our engineers size shells, heads, nozzles, flanges, and reinforcement pads using the Division 1 rules, then verify the design against the actual operating temperature, design pressure, corrosion allowance, and applicable load cases. Maximum Allowable Working Pressure (MAWP) is established and stamped on the nameplate so the vessel's rating is unambiguous in the field.
For equipment destined for the European market, we apply the Pressure Equipment Directive, selecting the correct conformity assessment module based on the vessel category and coordinating with a Notified Body where required. PED design draws on harmonized standards while preserving the same disciplined approach to materials traceability and weld qualification that governs our ASME work.
Because Roben holds the ASME U Certificate of Authorization and is registered with the National Board of Boiler and Pressure Vessel Inspectors, design and fabrication happen under one roof and one quality system. That continuity eliminates the hand-off risk that occurs when design is split from the shop, and it keeps your project on a single, accountable schedule.
Each design is supported by a complete data package: design calculations, material test reports, weld maps, NDE records, the U-1 Manufacturer's Data Report, and the National Board registration. This documentation is what allows your facility to commission the vessel quickly and to satisfy jurisdictional and insurance requirements without delay.
Why Choose Roben Manufacturing
- Holder of the ASME U Certificate of Authorization. Roben designs and stamps Section VIII, Division 1 vessels in-house, so your project never leaves the controlled quality system that produced it.
- PED and CE marking expertise. We engineer to PED 2014/68/EU and coordinate Notified Body involvement so vessels can be lawfully placed on the European market.
- National Board registration. Completed vessels are registered with the National Board, giving you a permanent, verifiable record of the equipment.
- Integrated design and shop. Engineering and fabrication share one facility, one schedule, and one accountable team, reducing risk and lead time.
- Complete code documentation. Every project ships with calculations, MTRs, NDE records, and the Manufacturer's Data Report assembled for your files.
Key Features & Capabilities
- Design to ASME Section VIII, Division 1 rules for shells, heads, nozzles, and flanges
- PED 2014/68/EU conformity assessment and CE marking coordination
- Establishment of MAWP, MDMT, and corrosion allowance for stamped ratings
- Nozzle reinforcement and area-replacement calculations
- Flange design and rating verification to ASME B16.5 and Appendix 2
- Material selection with full mill test report traceability
- Welding procedures qualified to ASME Section IX
- Hydrostatic and pneumatic testing per code with Authorized Inspector sign-off
- U-1 Manufacturer's Data Report preparation and National Board registration
- Nameplate and stamping in accordance with code requirements
Applications & Industries Served
- Reactors and jacketed process vessels for the chemical industry
- Storage and process vessels for petrochemical and refining service
- cGMP-compliant equipment for pharmaceutical manufacturing
- Sanitary vessels for food and beverage processing
- Hazardous-service vessels requiring rigorous documentation
- Export equipment requiring PED compliance and CE marking
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; National Board of Boiler and Pressure Vessel Inspectors.
Frequently Asked Questions
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