Self-priming centrifugal Pump has the advantages of simple structure, convenient operation and maintenance, stable operation, large displacement, high efficiency, easy adjustment, strong self-priming capability and wide application range. Self-priming centrifugal pump purposes: used to transport gasoline, kerosene, diesel, aviation kerosene and other petroleum products; medium temperature -20 ℃ ~ +80 ℃, is an excellent marine loading and unloading pumps, can also double as sweeping the pump. And for land oil depots, tankers and other storage devices for oil transportation, can also be used to transport seawater, fresh water and so on. 1, evacuated, cavitation or a longer time holding pressure, leading to seal damage; 2, the actual output of the pump is small, a large number of medium pump cycle, heat accumulation, causing gasification medium, leading to seal failure; 3, Large, resulting in suction side of the tube side of the container (tower, kettle, Tank, pool) at the bottom of sediment thrown, damaged seal; 4, for a long time outage, restart without manual turning, friction due to adhesion and tear seal Surface; 5, medium corrosive, polymeric, colloidal substances increased; 6, rapid changes in ambient temperature; 7, frequent changes in conditions or adjustments; 8, a sudden power failure or downtime and so on. Centrifugal pump in normal operation, a sudden leak, if not found in time, often lead to a larger accident or loss, we must pay attention to and take effective measures.
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