ZW and P series self-priming non-clogging sewage pump is a new structure product which is developed on the base of reaping study of domestic and foreign similar technology. This kind of pump combines self-priming  and non-clogging, adopting axial circumfluence outer-mix type. And through the particular design of case and impeller channel, it not only needn’t to be fixed with base valve and poured in water like normal self-priming, but also can suck and discharge liquid containing big grain and long fibrin substance. So it is widely used in municipal sewage project, river and pond breeding light industry, papermaking, weaving, foodstuff, chemical industry, power industry, fibrin, slurry and mixed suspension etc. chemical medium.

Pump of this kind has features of simple structure, good self-priming performance and high sewage capability, high efficiency and energy saving, convenient usage and maintenance compared with domestic similar product. And it belongs to the first creation in the country at sewage pump series. All technology and performance indexes are on top of the nation, reaching the international advanced level. So it has wide application market and developing future.