Fluorine-lined centrifugal pump is designed and manufactured according to international standards and combined with non-metal pump. It is suitable for long-term transportation of any concentration of strong acid, alkali, salt, strong oxidant and other corrosive media. Its shell is covered with metal casing. Fluoroethylene propylene (FEP) and over-current components are all made of plastic alloy (PTFE, FEP), which combines the advantages of various plastic pumps. It has strong corrosion resistance, good wear resistance, high mechanical strength, no aging, no toxins. Decomposition characteristics. In the structural design, the shaft diameter is increased, the cantilever ratio is shortened, the disadvantages of the chemical pump are eliminated, the operational stability is improved, the maintenance cost and the running cost are reduced, and the pump inlet and outlet are both reinforced with cast steel to enhance The pressure resistance of the pump. The pump has the advantages of corrosion resistance, wear resistance, high temperature resistance, no oxidation, high mechanical strength, stable operation, advanced and reasonable structure, strict and reliable sealing performance, convenient disassembly and maintenance, and long service life.