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Horizontal centrifugal pump is based on the principle of centrifugal force design, high-speed rotation of the impeller blades to rotate the water, the water thrown, so as to achieve the purpose of delivery. There are many types of centrifugal pumps, from the use can be divided into civilian and industrial pumps; from the transmission medium can be divided into clear water pumps, impurity pumps, corrosion pumps and so on. The advantages of horizontal centrifugal pump: 1, smooth operation: the absolute concentricity of the pump shaft and the impeller balance of static and dynamic, to ensure smooth operation, no vibration. 2, drip leakage: Carbide seals of different materials to ensure that there is no leakage of different media delivery. 3, low noise: two low noise bearing under the pump, smooth operation, except for motor weak sound, the basic noise-free. 4, the failure rate is low: the structure is simple and reasonable, the key part of the world-class quality support, machine trouble-free working time greatly improved. 5, easy maintenance: replacement of seals, bearings, easy and convenient. 6, covers an area of ​​more provincial: exit to the left, right, up three directions, the pipeline layout and installation, saving space. 7, simple structure, easy maintenance, cheap price; 8, horizontal centrifugal pump for air conditioning, heating, sanitary water, water cooling refrigeration system, liquid circulation and water supply, pressurization and irrigation in areas such as non-corrosive cold water and heat Water delivery. Disadvantages of horizontal centrifugal pump: 1, horizontal centrifugal pump suction height due to restrictions, the pump installed in a very low position, easy to damp, submerged, affecting safe operation.