动态曲线平顺,不易出现超功率现象,汽蚀性能却不如一般闭式叶轮,尤其适合进口高压泵。螺旋离心式叶轮的叶片为螺旋叶片,从其吸盘入口的轴向方向延伸。该型叶轮的泵兼有容积泵和离心泵两种作用,悬浮颗粒通过叶片时,不会撞击泵内部任何部位,因而具有较好
的无损性。
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