This part of EN 12259 specifies requirements, test methods, evaluation of conformity and marking of deluge alarm valves with a nominal size range DN40 to DN250 intended to be used for fire safety.

This document is applicable to clapper type and diaphragm type valves; it is not applicable to elastomeric sleeve type valves and does not include rules for design, installation and maintenance of fire protection water spray systems.

Auxiliary components and attachments to deluge alarm valves are not covered by this part of EN 12259 with the exception of automatic drain valves.