泵的吸入能力取决于泵的汽蚀余量和最大自吸高度。
The suction capability of the pump depends on the cavitation margin and the maximum self-suction height of the pump.
它的最大特点是对介质的适应性强、流量平稳、压力脉动动小、自吸能力高，这是其它任何泵种所不能替代的。
It is characterized by a strong adaptability to the media, smooth flow, pressure pulsation, small, high self absorption capacity, which is not a substitute for any other pump.
立式三螺杆泵内部结构简单紧凑，效率高、具有很强的自吸能力、节能效果好；
Vertical three-screw pump internal simple and compact structure, high efficiency, strong self-priming capacity, energy saving effect is good;
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