MD type mining wear-resistant multi-stage centrifugal pump is used for conveying neutral mineral water with solid particle content not more than 1.5% (particle size less than 0.5 mm) and other similar sewage. The temperature of the medium to be conveyed is not more than 80 ℃. , mine drainage, sewage transportation and other occasions, the MD type mining wear-resistant multi-stage centrifugal pump rolling bearing is lubricated with greasy oil, the sliding bearing is lubricated with thin oil, and the oil ring is used for self-lubrication and circulating water cooling. There are two types of shaft seals: mechanical seal and packing seal. When the pump is sealed with packing, the position of the packing ring should be correct, the tightness of the packing must be appropriate, and it is advisable that the liquid can seep drop by drop. Various sealing elements of the pump are installed in the sealing cavity, and a certain pressure of water should be introduced into the cavity to play the role of water sealing, water cooling or water lubrication. A replaceable bushing is installed at the shaft seal to protect the pump shaft. Viewed from the direction of the original motor, the pump rotates clockwise.

Capacity	25--500m3/h
Head	60--1798m
Medium temperature	-20℃--80℃
Maximum pressure	≤200bar