This document specifies requirements for single stage and multi-stage centrifugal pumps with mechanical seal or soft packing for use in automatic sprinkler systems and is for use with EN 12845 and EN 17451 .
This document is applicable for the following pumps, independent of installed orientation (vertical, horizontal or sloped according to the manufacturer indications):

- end suction pumps (close coupled or long coupled) of the back pull-out type pump;

- axial horizontal split case pumps;

- ring section pumps including multistage single or multi outlet;

- single or multistage inline pumps (pump with inlet and outlet in line);

- submersible motor borehole pumps.
This document is also applicable to vertical turbine pumps.