Description

Main Usage: WQ Series Submersible Sewage Pump is mainly used for municipal works, industrial buildings, hotels, hospitals, civil air defence, mines and other fields. It can drain off the sewage, waste water, rainwater and living water in cities containing solid grains and various long fabrics. Structure description: Bearing: Imported SKF or NTN bearing are used to extend the duration of the pump. Cooling: The built-in cooling system can ensure the pump work normally whether the motor is on or under the liquid surface. Motor: F class of insulation, IPX8 grade of protection Mechanical seal: Bogman mechanical seal is ***** ways of the seal are in series with each other and work individually to separate the motor from the pump seal to provide the motor with a dual protection. Oil chamber: Oil can lubricate and cool the mechanical seal and realize the attachet function of safty by preventing liquid from penetrating into the motor. The air of a certain amount left inside of the chamber can lower the pressure accumulatively raised. Impeller: With the optimized design, the impeller will not be blocked up when to transport liquid with its optimum flow and rate and the maximum efficiency. There are suitable impellers at choice for every point of working condition. There are single-geat, dual-geat and three-blade impellers available at choice. Pump casing: CAD/CAM are used to make the maximum efficiency and minimum wearability. Shaft: The pump is coxial with the motor and the sealing device on the end of the shaft prevents against cotacting with the medium to protectection from corrosion. The rotating shaft is desinged as short as possible to reduce deflection and vibration. It is also useful to extend the duaration of mechanical seal and bearing and lower the noise at runnig. Monitor system: There are three inlaid series heat-control switches inside of the stator, which are in the state of “*****” at the normal temperature and opended