scope:

This part of EN 12259 specifies requirements, test methods, evaluation of conformity and marking of single stage and multi stage pumps with mechanical seal or soft packing intended to be used in automatic sprinkler and water spray systems according to EN 12845 and CEN/TS 14816. This European Standard is applicable for pumps made of the following materials: - Body: cast iron, cast steel, stainless steel, bronze or aluminium bronze. - Pump shafts: stainless steel. - Protective sleeves for shafts, metal parts of mechanical seals, impellers, impeller fastenings (impeller nuts, locking plates or washers and adjusting springs) and wear rings, including their counterparts: bronze or stainless steel. This European Standard is applicable for: - end suction pumps; - axial horizontal split case pumps; - ring section pumps; - inline pumps (Vertical shaft pump with inlet and outlet in line); - vertical turbine pumps; - submersible motor pumps.