Pumps of the series SPP/SPV are single-stage mixedflow pumps, adopted open impeller and back pull-out design. They are available in both horizontal and vertical design.
SPV系列泵是单级混流泵，采用开式叶轮，后拉出式设计，可以提供卧式（SPP）和立式（SPV）两种型式。
The flow analysis in the tip between front board and impeller was emphasized, which reflected the advantage of semi-open impeller when it transported the 2-phase medium.
并着重对前盖板与叶轮间隙内的流动进行了分析，揭示了半开式叶轮输送两相流介质的优点所在。
This calculation result provides design basis for the establishment of stock pump with semi-open and fewer blades impeller.
该计算结果为建立少叶片半开式叶轮纸浆泵的设计方法提供了理论依据。
Impeller are open, and closed three-Banbi, as shown in Figure 2-2.
叶轮有开式、半闭式和闭式三种，如图2 - 2所示。
Impeller are open, and closed three-Banbi, as shown in Figure 2-2.
叶轮有开式、半闭式和闭式三种，如图2 - 2所示。
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