Power and the difference between the effective power of the shaft, is the loss of the pump power 150ZJ-I-A70 slurry pump, the size of the pump efficiency is calculated 200ZJ-I-A58 slurry pump, pump efficiency is effective power and shaft power than 150ZJ-I-A63 slurry pump, namely η = Ne / NZ (1-8) by the formula (1-7) (1-8) of the pump shaft power can be obtained as: Ne = QH Sm / 102η KW (1 -9) In general, the sample pump Hs [given] value (pump suction on the vacuum height) or (NPSH) r value, is at standard atmospheric pressure Pa (Pa = 1.033kg / cm2 = 10.33mH2O) and water temperature is 20 ℃ (when Pv = 0.024kg / cm2 = 0.24mH2O) of the case, the pump of the test result, it is (NPSH) r and [Hs] can be converted by the following formula: (NPSH) r = 10.09- [Hs] + Vs2 / 2g m (1-11) where: Vs- pump suction velocity m / s; 150ZJ-I-A65 Slurry Pump | Slurry | Shijiazhuang Pump Co., Ltd. by the Shijiazhuang-school provided. Shijiazhuang-school Pump Co., Ltd. (www.shipaipump.com) strong, credible, and other industries in other Shijiazhuang, Hebei accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Shijiazhuang-faction pump into the brilliant and you work for a better future!