DG series of submersible pumps is a patent product developed by the researchers in Shanghai Liancheng. It belongs to the second generation of the submerged pump, which can be applied in the toughest conditions to the drainage of wastewater full of sludge and slurry. They come into being on the basis of the first generation of the pump and a good combination of the best hydraulic model of the WQ series of submerged pumps with the current advanced technology at home and abroad. Apart from all the characteristics of the WQ pumps, the WY type of pump has clear advantages over the old ones. So conveniently can they be erected that the application has be enlarged dramatically in all the different draining conditions. YW Submersible Pumps has many Advantages. It has been designed as a pump with easy application. It can operate durably and work with high reliability and free of maintenance.