This is the most referenced section of the NORSOK L002 PDF. Unlike generic valve standards, NORSOK L002 provides specific "Valve Codes" (e.g., V07, V51, V62) that predetermine the valve’s trim, seat material, soft goods, and painting requirements.

Example: Using Code V51 signifies a floating ball valve with RTFE seat, suitable for moderate hydrocarbon service. By simply quoting this code, an engineer replaces 10 pages of technical specifications.

The standard provides requirements for:

It applies to design, materials, installation, inspection, testing, and maintenance.

The NORSOK L-002 PDF is extensive, covering the entire lifecycle of piping design. The standard is generally divided into three critical pillars: