BS EN 17450-3:2025

This standard BS EN 17450-3:2025 Fixed firefighting systems. Components for water mist systems is classified in these ICS categories:

• 13.220.20 Fire protection

This document specifies the requirements and describes the test methods for check valves for water mist firefighting systems. Check valves allow the passage in the direction of flow and they prevent flow in the reverse direction. This document is applicable to check valves installed in the pipework of water mist firefighting systems.