Stainless steel self-balancing multi-stage pump Economic Benefit Analysis: In the case of flow, lift the same, the energy saving effect of the pump is as follows: The same operating parameters, the selected product model and shaft power, with power comparison: flow Q = 155m3 / h Head H = 240m; Model: Multi-stage pump D150-30 * 8, Product efficiency 77, Shaft power 117.6, Equipped with power 132; Self balancing multi-stage pump ZPD150-30 * 8, Product efficiency 82, Shaft power 104.6 , Equipped with power 110. ZPD high-pressure self-balancing multi-stage centrifugal pump, the design is based on the practical operation of the entire pump operation safety, economy, trouble-free operation and low maintenance costs. Self-balancing multi-stage pump design features are summarized as follows: ①self-balancing multi-stage pump is the use of advanced modular design, extensive use of long-term operation of the local components tested, parts have a high degree of interchangeability. ② high-strength, high-quality materials and a variety of choice of inlet and outlet flanges and take over design to improve the self-balancing multi-stage pump high allowable take-over load, high strength, high-quality pump housing structure material structure so self-balancing Multistage pump life is 5 times the ordinary castings, overcurrent parts impeller, guide vane using precision casting, smooth and smooth than the average casting efficiency increased by 2% or more. At any time to meet the user's special circumstances, the system's specific requirements. ③ rapid assembly and disassembly design, allowing water self-balancing multi-stage pump without removing the pump and inlet and outlet pipelines to replace the seal, bearing parts, to ensure less overhaul and inspection time. ④ self-balancing multi-stage pump is a combination of high efficiency, high reliability and low cost. Through the best combination of impeller and guide vane, as well as the reasonable fit clearance and wide axial throttling design, the ZPD high-pressure multistage centrifugal pump can still maintain its high stability and high running after long-term operation effectiveness. ⑤ good cavitation performance. The use of excellent impeller hydraulic model or a special double-suction impeller structure, users do not need to configure the front pump or increase the inlet tank height. ⑥ symmetrical arrangement of the impeller rotor parts, rotor parts on both ends of the impeller points high and low pressure, axial force offset each other and balance the instantaneous axial force pump operating conditions and due to machining errors and spiral seal residual axial The force is borne by the thrust bearing mechanism of the bearing components. The self-balancing multi-stage pump cancels the balance force mechanism such as the balance disc or the balance drum completely avoiding the instantaneous failure of the balance disc or the balance drum due to the change of the pump working condition Rotor lock, parts damaged, broken shaft, and even the occurrence of electrical accidents burned. Safe pump seal design, depending on the pressure and structure, the pump body with metal face of the hard seal or O-ring seal. According to user requirements, self-balancing multi-stage pump can increase the center tap and the minimum flow system. Self-balancing multi-stage pumps can be replaced without the import and export of the bearing replacement, sealing.