Impulse steam turbine, reaction steam turbine, combined reaction steam turbine, condensing steam turbine, back pressure steam turbine, adjusted extraction steam turbine, intermediate reheat steam turbine, low pressure steam turbine (main steam pressure less than 1.5MPa), medium pressure steam turbine (main steam pressure is about 3.4MPa), high-pressure steam turbine (main steam pressure is about 9.0MPa), ultra-high-pressure steam turbine (main steam pressure is 12.0-14.0MPa), subcritical steam turbine (main steam pressure is 16.0-22.1MPa), Super/supercritical steam turbine (main steam pressure is greater than 24.0MPa).
Axial flow steam turbines, power station steam turbines, industrial steam turbines are used to drive fans, water pumps and other rotating machinery; marine steam turbines are used to drive propellers for ships.
