R Stamp Welding Services for
Tank Trailers & Pressure Equipment
BEP provides R stamp welding services for pressure vessel and tank trailer repair. R Stamp certification is issued under the National Board Inspection Code and allows qualified facilities to perform repair and alteration work on pressure retaining equipment, including cargo tanks, pressure vessels, and associated piping systems.
This type of welding work is required whenever the pressure boundary of a tank or vessel is affected. That includes crack repair, corrosion restoration, nozzle or fitting replacement, and structural welding repair. These are not standard welding services. All work must follow approved procedures and be completed under proper inspection to meet regulatory compliance and safety requirements.
R Stamp welding applies directly to tank trailers used in fuel, crude, chemical, and propane transport. These units operate under strict pressure vessel code and DOT requirements. If repair work is not completed under R Stamp procedures, the equipment may not pass inspection or meet compliance standards for continued operation.
At BEP, we perform pressure vessel repair and cargo tank welding services with a focus on restoring structural integrity and maintaining compliance. Our team works with pressure-retaining equipment in real operating conditions, helping ensure each repair supports safe and reliable use.
R Stamp Welding Process, Inspection & Compliance
R Stamp welding follows a controlled process from start to finish. It begins with a detailed inspection to identify damage and define the scope of repair. Once the scope is established, a code-compliant procedure is developed, including a welding procedure specification that outlines how the repair will be completed.
The work is performed by qualified welders using approved materials such as carbon steel or stainless steel when required. This is controlled welding performed under documented procedures aligned with the ASME code and National Board requirements.
Pressure vessel inspectors and authorized inspectors play a key role in the process. Their involvement ensures the work meets code requirements and is properly reviewed before, during, and after repair. This oversight is required for certification and helps ensure the work is accepted during inspection.
Testing and verification are also part of the process. Depending on the repair, this may include pressure testing, leakage testing, or other inspection methods used to confirm the integrity of the tank. These steps help ensure the equipment meets safety and compliance standards before returning to service.
Documentation is required for every R Stamp repair. This includes welding procedures, material traceability, inspection reports, and final certification records. Without proper documentation, equipment may fail inspection or be removed from service. Maintaining complete records is critical for regulatory compliance and long-term equipment tracking.
At BEP, we manage the full process from evaluation through final documentation. This allows us to complete R Stamp repair work efficiently while maintaining the level of control required for pressure vessel repair and certification.
R Stamp Welding for Tank Trailers in North Dakota
BEP provides R Stamp welding in North Dakota for tank trailers and pressure retaining equipment used in fuel, crude, chemical, and bulk transport. We work with transportation companies, oil and gas operations, agricultural businesses, and industrial operators that rely on compliant equipment.
We handle both welding and repair in one shop. This includes structural welding, pressure vessel repair, and mechanical service for tank trailers. Keeping this work in-house allows us to reduce downtime, improve turnaround, and maintain control over quality and cost. Learn more about our tank trailer repair services.
We also support ongoing compliance through cargo tank inspections, helping ensure equipment meets DOT and inspection requirements before returning to service. Identifying issues early helps prevent failed inspections and repeat repair work.
As a full-service provider of welding and fabrication services, BEP completes drafting, cutting, bending, and welding in-house. This includes fabrication work for pressure-related components and structural repairs that support long-term performance.
Work involving pressure-retaining equipment must be done correctly the first time. BEP focuses on practical evaluation, proper repair planning, and compliant execution so your equipment can return to service without unnecessary delays. If you need R Stamp welding, pressure vessel repair, or tank trailer service, contact us to schedule an evaluation or request a quote.
Test & Inspection Requirements
V – External Visual Inspection – Annual Test
K – Leakage Test – Annual Inspection
I – Internal Visual Inspection – Five Year Test
P – Pressure Test – Five Year Test
T – Thickness Test – Two Year Test
UC – Upper Coupler Inspection – Five Year Test