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Fincantieri has designed and manufactured impulse type steam turbines for about 100 years, on modular construction systems to optimise the efficiency for specific project requirements. The Fincantieri steam turbines reliability and the design flexibility have allowed their application not only in industrial purposes such as power generation or mechanical drive for electric power plants, oil refineries, petrolchemical plants, waste treatment plants, sugar mills, paper mills, but also in the marine field such as ship propulsion and turbogenerators.
High efficiency, reliability and quality are considered of prime importance in design and production, appling the results of the extensive continuous research activity. The Fincantieri steam turbine production range includes multi-stage/single and multi-valve backpressure or condensing types with or without controlled/uncontrolled steam extractions. Machines are available for power output up to 35.000 KW with steam inlet conditions of up to 120 bar/520 °c and rotational speeds from 3.000 rpm to 13.000 rpm. 



Controlled - extraction type
For all industrial applications - requiring the supply of part of steam flow to the process with constant pressure - Fincantieri provides turbines with controlled extraction.the intermediate sections of the casing are replaced by extraction modules equipped with valves and actuators for extraction pressure control. 



Backpressure - turbines
Backpressure steam turbines are installed in all the industrial plants that use the entire exhaust steam flow for the process.
Fincantieri backpressure steam turbines are of impulse type with a horizontally split casing. The construction is of diaphragm and disk type. The rotor disks are solid with the shaft in order to maximize strength and reliability. The casings are in alloyed steel and the exhaust can be either upward or downward. The rotor supporting system is “centreline”, assuring a good alignment with the different temperature distributions corresponding to the various loads. Fincantieri also provides backpressure steam turbines with controlled extraction. 



MAX PERFORMANCES OF THE DIFFERENT SIZES IN THE STANDARD CONFIGURATION (BACK PRESSURE) 

TYPE MS-VS 36 B 45 B 50 B 56 B 70 B 80 B
Max. output (kW) 4000 8000 8000 18000 25000  29000 35000
Max. inlet Pressure (bar)* 50 110 70 70 120 120 70 
Max. inlet temperature (°C) 475 510 510 475 510 510 500
Max. outlet pressure (bar) 15 15 35 15 16 16 7
Max. rotational speed (rpm) 12000 13000 11000 11000 9000 7500 5200
       
Condensing - turbines
Condensing steam turbines are used when the production of energy is the main purpose. Condensing turbines steam path is diaphragms and disks type (impulse type steam turbine).
The rotor disks are solid with the shaft in order to maximise strength and reliability.
The casings are in alloyed cast steel, horizontally spitted. The exhaust side can be cast steel or fabricated steel, either upward or downward oriented. The rotor supporting system
Is “centreline”, assuring a good alignment with the different temperature distributions corresponding to the various loads.
Fincantieri also provides condensing steam turbines with controlled extraction. 



MAX PERFORMANCES OF THE DIFFERENT SIZES IN THE STANDARD CONFIGURATION (CONDENSING) 
TYPE MS-VS 36 C 50 C 60 C 70 C 80 C 100 C
Inlet pressure (bar)* 60 110 95 140 140 80 100
Max. inlet temperature (°C) 475 500 475 500 500 500 510
Typical exhaust flow (t/h) 17÷30 17÷30 21÷41 30÷55 30÷63 50÷80 80÷130 
Typical exhaust pressure (bar)  0,1÷0,2 0,1÷0,2 0,08÷0,15 0,08÷0,15 0,06÷0,13 0,08÷0,13 0,05÷0,08
Output (kW) 4000 8000 14000 18000 24000 30000 35000 
Typical rotational speed (rpm) 11000 10000 8200 7200 6300 5200 3000

* Combined pressure/temperature conditions, higher than those indicated, are possibile.
The other conditions can vary from case to case.