... Type D,DG,MD,DF,DY Multi-stage Centrifugal Pump:The serial pump is multi-stage sectional centrifugal pump with the ... —Multi-stage horizontal centrifugal pump, DG—Multi-stage boiler feed pump MD—Multi-stage wearable centrifugal pump, DF—Multi-stage anti-corrosive centrifugal pump DY—Multi-stage ... of pump is 100mm. D—Multi-stage horizontal centrifugal pump 16—The single stage head is 16m at design point ...