1. SST-600 Industrial Steam Turbines
Up to 100 MW
Whether you need power generation for independent power production or for any
industrial application, the SST-600 offers you the flexibility, reliability and economy
of operation you demand.
The SST-600 range: proven design for a
wide range of applications
The SST-600 is a single-casing steam turbine,
designed for operation with speed ranging
from 3,000 to 15,000 rpm for generator or
mechanical drive up to 100 MW. It covers
industrial applications such as:
Compressor drive
Generator drive
Boiler feed water pump drive
for chemical and petrochemical industry,
pulp and paper mills, steel works, mines,
or in power plants, seawater desalination
plants, solar thermal power plants, and
waste-to-energy, e.g. waste incinerators.
Industrial Steam Turbines
Answers for energy.

2. Design features
The SST-600 single-casing steam turbine is used for both condensing and back-pressure applications, either
geared or directly coupled. Turbine design is in accordance with DIN or API standards. The turbine is built up
from pre-designed modules combined to a single unit for optimum matching of the required parameters.
The SST-600 turbine can be equipped with impulse
control stage and reaction blading fixed in blade carriers.
Steam is led into the turbine by one or two emergency
stop valves, which, together with the control valve chest,
form an integral part of the turbine casing.
The intermediate section of the turbine can be equipped
with one or two internally controlled extractions and
number of bleeds as required. The exhaust section is
prepared for axial, downward or upward connection for
condensing, while for back-pressure application upward
or downward connection is provided.
The casing is supported by a front bearing pedestal to
absorb axial movements and a fixed rear bearing pedes-
tal. Bearing pedestals are fixed on the base frame or
directly anchored to a concrete foundation. Turbine
auxiliary systems are also pre-designed into modules
covering the complete range of turbine sizes.
Operational flexibility
The turbine concept together with its modular configu-
ration ensures high stress absorption during turbine
operation whilst maintaining high flexibility in design.
The design with outer casing or the combination of the
inner and outer casing substantially reduces thermal
and pressure stress. Together with the unique bearing
pedestal design and its arrangement, this improves the
operational stability and reliability of the turbine.
Modular layout and compact design
1 2 3
Typical dimensions for
a 35-MW steam turbine
L Length 15 m / 49 ft H
W Width 6.5 m / 21 ft W
H Height 4.5 m / 15 ft
4 5
1 Steam turbine
5
2 Speed reduction gear L
3 Generator
4 Base frame with integral oil unit
5 Condenser
6 Condensate and vacuum pump
package 6
Typical layout for turboset with a SST-600 condensing steam turbine

3. Flexible design for individual customer needs
Variable inlet control valve configuration and high flexibility for arrangement of controlled extractions
and bleeds guarantee an optimum performance for almost all requirements in regard to plant configuration
and operational conditions.
Technical data
Power output up to 100 MW
Speed from 3,000 to 15,000 rpm
Live steam conditions
Pressure up to 140 bar / 2,000 psi
Temperature up to 540 °C / 1004 °F
Bleed up to 5 at various pressure levels
Controlled extraction (single or double)
Pressure up to 65 bar / 945 psi
Exhaust steam conditions
Pressure up to 55 bar / 800 psi
(All data are approximate and project-related.)
Design features Benefits
Proven High reliability/availability
Customized steam path High efficiency
Single casing High quality standard
Axial or radial exhaust Variable layout
Flexible Remote control
Modular Wide application range
Optimum performance Layout concepts
Resonance-proof blades configured into groups mount- The versatile design of the turbine and its auxiliaries pro-
ed into separate blade carriers support the optimization vides for a wide range of layout concepts and solutions,
of the complete steam path, which, together with the where the most typical are standardized.
advanced design of the blades themselves, underpins For direct-coupled turbines or mechanical drives, the
the turbine‘s extremely high efficiency. Standardization core turbine is mounted on a separate base frame. For
of the blading ensures operational reliability. The drum geared turbines, the turbine is placed on a common base
rotor is designed to ensure that it is not sensitive to together with the gearbox. For small condensing sizes,
shaft vibration, reinforcing the reliability of the turbine. even the condenser can be integrated in the base frame.
Modular arrangement For the conventional arrangement with downward
exhaust for back-pressure, condensing applications
The turbine consists of three main modules: inlet, inter- and large direct-coupled generator drives, the
mediate and exhaust sections, which are available in turbine stands on a pedestal-type support.
various sizes and configurations.
For ground-level installations,
The complex inlet section consists of emergency stop the turbine is equipped with
valve, control valve chest, internal casing with blading axial or upward exhaust,
and external casing. yielding substantial savings
The intermediate section can be designed for straight in foundation and building
flow, or equipped with bleeds and/or controlled extrac- cost. For the axial exhaust
tions as required for the specific application. alternative, the embedded
A wide range of exhaust sizes and types is available for bearing is supported by
back-pressure and condensing applications. the exhaust casing itself.
Where space is restrictive,
an arrangement with down-
ward exhaust and underslung
condenser can be selected.

4. Easy installation and maintenance
Mounting the turbine on a separate base frame or on the common frame with gearbox enables easy transportation
and installation of the turbine at site.
The core turbine arrives ready assembled together with the
electrical installation, which substantially shortens the time
needed for fitting on the foundations as well as connection of
the turbine’s I&C systems into the plant circuit. Features such
as a horizontal casing split, independently accessible bearings
etc. ensure easy and rapid maintenance. Additionally, the guide
blade carriers enable easy maintainability or further modifica-
tions of the steam path.
SST-600: Steam turbine generating set in a power plant in Austria
Reference examples
SST-600 has been sold for a rich variety of applications around the world. The following references are typical examples
of this versatility of application.
Power plant in Gävle, Sweden: 24-MW condensing steam turbine Port Dickson, Malaysia: 44-MW steam turbine package for an oil refinery
for district heating with turboset and air blower
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