... : 2~336m3/s,Head: 84~666m 2,mine water pump 3,underground mine water pump Type D,DG,MD,DF,DY Multi-stage Centrifugal ... Pump:The serial pump is multi-stage sectional centrifugal pump with the ... screw up by poles to become a working house. The suction direction of type D pump is horizontal, its discharge direction is ...