What is the knowledge about sewage pump?

The most common type of pressurized water chamber used in sewage pumps is the volute. Radial vanes or runner vanes are often used in internal submersible pumps. The volute has three types: spiral type, ring type and intermediate type. The spiral volute is basically not used in the sewage pump. The annular pressure water chamber is more convenient to use on a small sewage pump because of its simple structure. However, due to the appearance of the intermediate type (semi-spiral) pressurized water chamber, the application range of the annular pressurized water chamber is gradually reduced. The intermediate type pressurized water chamber has both the high efficiency of the spiral and the high permeability of the annular pressurized water chamber. It has received increasing attention from manufacturers.

In summary, any series of sewage pumps are only a combination of different types of impellers and different types of pressurized water chambers according to the requirements of conveying medium and installation, as long as the impeller and the pressurized water chamber can be optimally configured. The various properties of the pump are guaranteed. (Of course, we cannot ignore the design and manufacture of other parts and structures )