Schemc
The D, MD, DG, and DF pump are multi-stage centrifugal pumps designed for various applications. The shaft is mounted with a replaceable bearing to protect it, and the bearing part mainly consists of bearing body, bearing, bearing gland, and so on. The bearings are supported by the bearing body and lubricated with grease or thin oil.
The shaft's back end is equipped with a soft packing, which mainly consists of packing, packing gland, and packing ring. The packing part prevents air from entering the pump and excessive water from passing out. The sealing water from the high-pressure area of the pump flows into the seal cavity for water cooling, lubrication, and sealing. The pump is driven by a motor through a flexible coupling. The rotation direction of the pump is clockwise when viewed from the motor end.
The pump is suitable for transporting clear water with temperatures ranging from -20°C to 105°C, and the PH between 2-14, which is applicable for mines. The DG pump is used to transport corrosive liquids without solid particles, with temperatures ranging from -20°C to 150°C. Clear water is defined as water containing no solid particles or suspended matter, and corrosive liquids are defined as liquids that can corrode metals or other materials.
The performance range of the design point of four pump types, D, MD, DG, and DF, is:
