This European standard specifies the dimensional requirements for the installation of machine tool electrical motor driven coolant pump units of the sump and suction type. This standard is applicable to coolant pump units having nominal capacities in the range 20 l/min to 250 l/min.
DS/EN 12157:1999 history
1999DS/EN 12157:1999 Rotodynamic pumps - Coolant pumps units for machine tools - Nominal flow rate, dimensions