F-type centrifugal pumps are used to transport corrosive liquids that do not contain solid particles. The temperature of the medium to be conveyed is -20°C~1 60°C, and the inlet pressure of the pump cannot be greater than 6 MPa. The flow range of this series of pumps is 2m3/h to 400m3/h. The lift range is 15m to 105m. The lower limit of the lift can be up to 3m after deceleration.