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A centrifugal pump operates by using the rotation of an impeller to cause water to move in a centrifugal direction. Before starting the water pump, it is necessary to fill the pump casing and the suction pipe with water. Then the motor is started, causing the pump shaft to drive the impeller and the water to rotate at high speed; as a result of centrifugal force, the water is thrown toward the outer edge of the impeller and flows through the channels in the volute-shaped pump casing into the pressure pipeline of the water pump. The basic structure of a centrifugal pump consists of an impeller, pump casing, pump cover, water seal ring, pump shaft, bearings, sealing ring, stuffing box, and an axial force balancing device. 1. The impeller is the core component of a centrifugal pump; it features high rotational speed and high output power. 2. The pump body, also known as the pump casing, is the main component of a water pump. It serves a supporting and fixing function, and is connected to the bracket that holds the bearing. 3. The function of the pump shaft is to connect to the motor via a coupling, thereby transmitting the torque from the motor to the impeller; it is therefore the main component for transferring mechanical energy. 4. The sealing ring is also known as a leak-reduction ring. 5. The packing box mainly consists of packing, which prevents the water flow inside the pump from escaping outside and stops outside air from entering the pump. Maintain a vacuum inside the water pump at all times! When heat is generated due to friction between the pump shaft and the packing, water must be injected into the water seal ring through the water seal tube to cool the packing! 6. Axial force balance device: During the operation of a centrifugal pump, since the liquid enters the impeller at low pressure and exits at high pressure, the pressures on either side of the impeller are not equal, which generates an axial thrust directed toward the inlet. This can cause the rotor to shift axially, leading to wear and vibration. Therefore, axial thrust bearings should be installed to balance the axial forces. That’s my analysis of this basic structure. There are many application examples for the Fengqiu Kree centrifugal pumps; if you’re interested, feel free to leave me a message! If there are any mistakes, please feel free to correct them!