NBN EN 16668:2025

This document is applicable to metallic valves as pressure accessories for industrial applications with a maximum allowable pressure PS greater than 0,5 bar in accordance with the European legislation for pressure equipment and specifies requirements applicable to design, manufacture, testing, materials and documentation.
All essential safety requirements of the European legislation for pressure equipment applicable to valves have been taken into consideration and are addressed in this document.
This document does not apply to:
- safety valve and bursting disc (safety accessories),
- sight glass with its frames (component of a pressure equipment), and
- measurement chambers.
For other exclusions, refer to the European legislation for pressure equipment [60].