Steam conditioning stations

In the processes of power stations, the steam is usually produced as superheated steam to avoid its unnecessary condensation in the transfer line and to maintain it as steam. The heat transfer capability of the superheated steam is, however, modest compared to the heat transfer capability of the saturated steam, and therefore it should be cooled to the temperature that corresponds to the pressure of saturated steam. This can be performed in a steam conditioning station.

Precision determines the cooling method to be selected

The superheated steam is usually cooled so that cooling water is fed into the steam in a controlled way. For this purpose, the cooling water is either sprayed directly into the valve seat or immediately after the valve. The operation is relatively simple and reliable, but it is insufficient if the process requires that the cooled steam should be precisely at the temperature that corresponds to the pressure of the saturated steam.

In this case, the steam conditioning station will be provided with a special extension positioned immediately after the valve. This enables the expansion of steam at the dropping pressure that, in turn, contributes to the cooling and further also to the reduction of superheating.

Depending on the required precision of the cooling, the cooling water will be fed into the extension part using different techniques. It can be atomised among the steam as water vapour or the steam can be lead through a water film. If necessary, perforated plates / absorbers can be added to the extension parts to drop the flow rate in a controllable way and to reduce the noise level.


  • DN 40-250, vesiyhde DN 15-40
  • PN 16-100
  • Laipoin
  • GS-C 25, GS-17CrMO55
  • Eri keilavaihtoehdot kohteen mukaan
  • Tuloyhde DN 25-400
  • PN 40-600
  • Laipoin, hitsauspu00e4in
  • GS-C 25, GS-17CRMO55, 13CrMo44, 10CrMo910
  • Eri keilavaihtoehdot kohteen mukaan
  • Ju00e4u00e4hdytyssuutin saatavana hu00f6yryhajoitteisena

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