Type GZpump is the updating & upgrading product integrating pump and motor with the motor being placed in the inner shell which is submersible for a long time. The pump has beautiful and neat appearance and a series of advantages that traditional unit is incomparable. The pump is a kind of large flow and low lift pump which can be used for farmland irrigation and drainage, mining and docks, city construction, water supply and drainage of power plants, especially suitable for flood control project, sewage project and drainage projects.