This part of the EN 12259 series 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 only applicable for the following pumps, independent of installed orientation (vertical, horizontal or sloped): end suction pumps (close coupled or long coupled) of the back pull-out type pump; axial horizontal split case pumps; ring section pumps; inline pumps (vertical line shaft pump with inlet and outlet in line); vertical turbine pumps; multistage inline pumps; multi stage-multi outlet pumps; submersible motor borehole pumps.