一般可分为单吸式叶轮与双吸式叶轮两种。
Generally can be divided into single suction impeller with double suction impeller two.
双吸式叶轮是两边吸水，叶轮盖板呈对称状，一般大流量离心泵多数采用双吸式叶轮。
Double suction impeller is on both sides of the water, the impeller cover plate is symmetrical, the general flow of centrifugal pump double suction impeller.
其中封闭式叶轮应用很广泛，前述的单吸叶轮双吸叶轮均属于这种形式。
Which closed impeller very broad application, the aforementioned single-suction aspiration impeller double impeller belong to this form.
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