The centrifugal pump is one combined structure of pump cover and integral volute and has one cast polyurethane elastomer lining in the fluid passing part.
其特征将离心泵分解成由泵盖及整体蜗壳组合结构，并在过流部位衬里一层浇注型聚氨酯弹性体。
2
This pump is two-stage structure: with the pump cover with centrifugal work between clapboard wheel - the first level;
该泵为两级结构：泵盖与外隔板间装有离心工作轮——第一级；
3
Its outline looks like a centrifugal fan. Besides the element parts of a fan, it specially has a cone filtering net, a dust collecting cover and a dust collecting bag.