ASME U is an American construction standard, used in various parts of the world in the pressure vessel industry to certify that products, services and quality system comply with the ASME Boiler and Pressure Vessel Code.

We help our customers with design, calculations and manufacturing, in order to get their products approved according to ASME U.

A lot of the products manufactured at Liedholms are used in the Middle East, Russia and Asia. We are certified according to ASME U and are validated every third year in order to maintain our certifications. Every product manufactured according to ASME U are listed at the National Board, and we are approved by following:

  • ASME, The American Society of Mechanical Engineers
    Manufacture of Welded Pressure Vessel, class U (Rules for Construction of Pressure Vessels)
  • NB, The National Board of Boiler & Pressure Vessel Inspections (for ASME U)


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