Steam back pressure turbines

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STG I and STG II steam back pressure turbines and TG axial multistage tubes

Our product range includes modern single-stage (STG I) and two-stage (STG II) steam turbines and multi-stage axial back-pressure turbines (TG). These rotating machines are used to reduce steam pressure and are used in power units of heating plants, incineration plants, in industry and other areas. A backpressure turbine can drive an electric generator, but it can also be used for mechanical drives - compressors, pumps, fans.

Back pressure steam turbines STG I

The turbines are only equipped with one turbine stage located on the shaft overhang and equipped with only one seal. The turbine stage is in two basic modifications - a radial stage and an axial stage. Alternatively, partial admission of the impeller is used. They are characterized by their high efficiency in comparison with competing turbines of the same design thanks to a wide range of specially designed turbine stages.

Back pressure steam turbines STG II

These are double-shaft turbines with a high-pressure and low-pressure STG I module, which are connected in series and suitable for double-pressure steam boilers, as they allow steam to be supplied to the turbine at two pressure levels. They are equipped with one turbine stage on each shaft. The stages are in two basic modifications - radial and axial. They are characterized by their high efficiency in comparison with competing turbines of the same design as well as multi-stage axial turbines in terms of parameters and price, thanks to a wide range of specially designed turbine stages.

Back pressure steam turbines TG

These are standard multi-stage axial turbines used in power generation units and mechanical drives. Depending on the requirements, they can be equipped with one regulated and one unregulated exhaust. They can also operate in suppressed condensation mode (used in the heating industry).

Parameters

Technické parametry	Back pressure steam turbines STG I	Back pressure steam turbines STG II	Back pressure steam turbines TG
Inlet steam	pressure up to 6.5 MPa., max. temperature 485 °C, flow rate up to approx. 60 t/h	pressure up to 6.5 MPa., max. temperature 485 °C, flow rate up to approx. 60 t/h	pressure up to 6,5 MPa, max temperature 485 °C, flow rate up to approx. 100 t/h
Outlet steam	pressure up to 2.5 MPa	pressure up to 2.5 MPa	pressure up to2,5 MPa
Steam exhaustion		One regulated or unregulated from the transfer pipeline between the high-pressure and low-pressure module	1 regulator, 1 unregulator
Governing	nozzle or throttle governing, or governing with rotary distribution blades	nozzle or throttle governing, or governing with rotary distribution blades	nozzle
Clutch power	up to 6 MW	from 1 up to 10 MW	up to 12 MW
Use	They are delivered on a common frame with a gearbox, or also with a powered machine for smaller outputs.	Electric generator, compressor, pump, fan drives supplied on a common frame with the gearbox or even with the driven machine. In special versions used for direct drive of high speed turbo-compressors (without gearbox).	Electric generator, compressor, pump drive. In special versions for direct drive of high speed turbo-compressors (without gearbox).

Steam Turbine DEZA

Delivery of a 10.8 MWe steam turbine consisting of two STG I type back pressure turbines in a tandem arrangement to drive a common generator. The tandem arrangement enabled the customer's requirements for operating modes to be fully met.

Steam back pressure turbine STG II Sokolov

Delivery of steam back pressure turbine STG II consisting of two turbine modules mounted on a common gearbox used to drive a synchronous generator with an output of 2.7 MWe. The first turbine stage is equipped with nozzle control to ensure a wide operating range while maintaining high efficiency.

High efficiency

PBS backpressure turbines are reliable and are especially known for their high declared efficiency and versatility.

Custom turbine design

The modular turbine design with a high-speed gearbox enables the design and manufacture of devices for a particular application.

Service, spare parts and overhauls of power engineering equipment

We offer our customers a comprehensive range of turbine set.

We provide all repairs in the framework of revisions, as well as outside of this framework in the case of sudden failures or breakdowns. The turbine repairs can range from medium repairs of individual components to overhauls of machinery including auxiliary equipment.

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