WQ Series Submersible Sewage Pump CNP

PURPOSE WQ series submersible sewage pump is mainly used for municipal works, industrial buildings, hotels, hospitals, civil air defense, mines etc. Applied to drain off the sewage, waste water, rainwater and living water in cities containing solid grains and various long fabric CONDITIONS OF USE 1.The medium temperatureshould not be over 40 derajat celcius, the density should be less than 1200kg/ m3, and the PH value is within 5-9 2.During running, the pump must not be lower than the lowest liquid level, see " lowest liquid level" in the drawing of installation dimension means lowest liquid level without automatic cooling system 3.Rated voltage 380V, rated frequency 50Hz. The motor can run successfully only under the condition the deviations of both rated voltage and frequency are not over kurang lebih 5% 4.The Maximum diameter of the solid grain going throught the pump should not be larger then 50% of that of the pump outlet STRUCTURES DESCRIPTION Motor : Insulation class: F, the max, working temperature is 155 derajat celcius. It is effected sealed. The protection level is IPX8 Mechanical seal : Use famous mechanical seal, two sets of mechanical seal work separately in series. It takes apart motor and pump with seal, double protect motor The material of pump side is WC/ SiC Oil Chamber : Oil can lubricate and cool mechanical seal, it can also resit liquid soak into motor. The left some amount air can deduce the pressure increment in oil chamber Impeller : After optimized design, it can pump liquid with best flow and speed and efficient without block. Every duty point matches a impeller for choosing. According to the pumped medium, single flow channel, double flow channel, triple impeller can be chosen Casing : Use CAD/ CAM technology, make pump casing the best efficiency and least wearing Shaft : The pump is coaxial with the motor and the sealing device on the end of the shaft prevents shaft from contacting with the medium to protec it from corrosion The rotator extention is designed as short as possible, to reduce the deflection and vibration. Prolong the life of the mechanical seal and bearing and reduce running noise Float Switch : The float switch will give a warning signal ( the indicator lights) , when leakage occurs on the mechanical seal on the motor side, the liquid goes into the switch chamber and reaches a certain height, to stop the pump. Seerviceman should check the mechanical seal and replace it if necessary. The function to check if the motor lack of phase is available with the electric control cabinet so as to prevent it from burning due any lack of phase

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