Small Kaplan Hydro Turbine 630kW 375rpm Vertical Shaft Adjustable Blade Runner This 630kW small Kaplan hydro turbine uses a vertical shaft and adjustable blade runner for heads from 5 m to 20 m. Double regulation of blades and guide vanes maintains 90% efficiency over a wide flow range. Key Features Double regulated Kaplan runner Water head range 5-20 m 630kW output at 375rpm Adjustable stainless steel blades Vertical shaft with oil head assembly 6300V generator for grid