Francis Impulse Turbines
The Francis turbine is one of three options in the Gilkes range.
Gilkes Francis turbines are available as either horizontal or vertical units. The water enters the spiral, or scroll case, and is directed by a series of moveable guide vanes, or wicket gates, to the turbine runner.
As the water passes through the runner it rotates and the water pressure drops. Water is then discharged through a draft tube into the tailrace. Flow control is affected by opening or closing the guide vanes, which is carried out by an actuator, which, is self controlled by either a speed governor, for stand-alone duty, or, PLC control for parallel.
Design for purpose...
Gilkes Francis model range includes 8 different specific speed designs.
The Hydro team at Gilkes can advise on the best solution for your project. Contact us for further details.