FY series submersible pump is a new type pump, which is based on the traditional corrosion-resistant submersible pump, combined with the advanced technology of Swiss Sulzer Company and improved the design. The pump cancels the mechanical seal commonly used in other submersible pumps and selects impellers with unique structure, which makes the pump highly efficient, energy saving, leak-free, and has a long service life. Therefore, it is widely used in petroleum, chemical, pharmaceutical, papermaking, metallurgy, sewage treatment and other industries.