... protection, sewage treatment, overpasses, water supply companies,paper, etc DescriptionWQ series submersible sewage pump is a new energy-saving product in ... , water supply companies, power plants, mining, paper, printing and dyeing, fish ponds, construction, mining and agricultural irrigation industries. At the same ... ): 50-600Capacity (m3/h): 50-5660Head (m): 7-52 WQ series sewage pumps