... of liquids can not exceed 80°C. Type DF pump is used for delivering corrosive liquids without ... feed pump MD—Multi-stage wearable centrifugal pump, DF—Multi-stage anti-corrosive centrifugal pump DY—Multi- ... is 3 stageConstruction feature :Type D (DG,MD,DF,DY) pump consists of stator, rotator, bearing and ... is upward; the discharge direction of type MD,DF,DY pumps are upward, the suction direction is ...