Francis Turbine Runner for Hydropower Plant Replacement This Francis runner is manufactured for hydropower stations undergoing runner replacement or capacity upgrading. Each runner is cast in stainless steel ZG06Cr13Ni4Mo, machined on 5 axis CNC centres and dynamically balanced before delivery, so the unit can be installed with minimal on site fitting work. Product Parameters Item Specification Runner type Francis (mixed flow) runner Nominal runner diameter 1000 mm