summary:
The DF type pump is designed for conveying temperatures ranging from -20 to 105 ℃, and does not contain solid particles or corrosive liquids. The inlet pressure of the pump is less than 0.6MPa. DF type pump is a horizontal, single suction, multi-stage segmented centrifugal pump. The outlet and inlet of the pump are vertically upward, and the suction section, middle section, and discharge section of the pump are connected together by tightening bolts. The pump rotor is composed of impeller, balance plate, and other parts mounted on the shaft. The two ends of the rotor are supported by rolling bearings or sliding bearings, and the rolling bearings are lubricated with grease. The axial force of the rotor is balanced by a balance plate.
The shaft seal adopts mechanical seal or packing seal. There are sealing chambers at both ends of the shaft, which are equipped with mechanical seals or soft packing. Water under certain pressure is introduced into the sealing chamber to provide water sealing and cooling effect. A replaceable shaft sleeve is installed at the shaft seal to protect the pump shaft. The pump is directly driven by the original motor through an elastic coupling, and when viewed from the original motor, the pump rotates clockwise.