ASME BPVC Section III, Division 1, Subsection NF: Rules for Supports, 2023

ASME BPVC Section III, Division 1, Subsection NF – 2023 provides construction requirements for component supports used in nuclear power plant systems governed by ASME Section III. These supports maintain the structural stability and functional alignment of Class 1, 2, and 3 piping and equipment under normal, transient, and postulated accident conditions.

Subsection NF defines design, material, fabrication, testing, and documentation standards for both standard and special supports. It ensures integrity, safety, and compliance for load-bearing structures subjected to mechanical, thermal, and seismic forces.

Highlights:

• Rules for the design and analysis of component supports including restraint, flexibility, and loading criteria
• Material specifications, qualification requirements, and traceability for metallic and nonmetallic components
• Welding, forming, and joining standards for fabrication and assembly
• Inspection and testing protocols including dimensional checks, load verification, and NDE
• Documentation requirements for design reports, material records, and ASME certification
• Supports integration with Class 1, 2, and 3 systems across piping, valves, and equipment

Who It’s For:
A must-have for structural engineers, nuclear designers, QA/QC personnel, and code compliance teams responsible for the qualification, construction, and certification of nuclear component supports.

BPVC.III.1.NF-2023