Francis turbine
Noun
Meaning
a type of hydroelectric turbine
Source: WordNetHypernyms
Examples
From left to right: Pelton wheel, two types of Francis turbine and Kaplan turbine.
Reversible turbine-generator assemblies act as both a pump and turbine (usually a Francis turbine design).
The shut off butterfly valve for a Francis turbine at Gordon Power Station, Tasmania Ball valve A closed soft seated valve is much less liable to leak when shut while hard seated valves are more durable.
This type of turbine is usually a Deriaz or Francis turbine in design.