ČSN EN 12259-12

(38 9210) 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.