Widely used in various industrial processes, sewage treatment, power stations, thermal power plants, pipe network pressurization, crude oil or refined oil transmission, natural gas transmission, hydraulic irrigation, water supply and water treatment, marine pumps, desalination and other occasions; In typical working conditions, it is used for lean liquid pump, rich liquid pump and hydraulic turbine in large-scale synthetic ammonia plant, as well as pipeline main pump in crude oil or refined oil transportation project.