Spray-Type Deaerator

Spray-Type Deaerator

Integrating advanced deaerating concepts in state-of-the-art power plant engineering is a challenge. The Spray-type Deaerator is a single-vessel patented design with a worldwide installed base of more than 5.000 deaerators.

Combining the spray type technology patented by Stork Termeq and our great experience in manufacturing of pressure vessels, COMES S.A. is capable of producing and supplying high quality Deaerators.


  • Compact design with just a single vessel;
  • Operating the Spray type Deaerator which provides threefold functionality (deaeration, pre-heating, storage);
  • Cooperation with our partner as full service provider in deaerating technology;
  • Applicable in a wide range of power plants: conventional, CCPP, CHP, CSP, nuclear and FPSO’s;
  • Financial: reduced capital investment and the lowest TCoO;
  • Operational: longlife design, reliability and availability;
  • Convenience: single point of contact for your project.


  • Customer oriented deaerator design;
  • Customer support during FEED;
  • Software tool for Deaerator Designer tool;
  • Continuous R&D-program, e.g. focusing on steam accumulators;
  • Manufacturing;
  • Commissioning;
  • Retrofits (of existing dome / tray type deaerators).

Type Deaerator Application and specifications:

Horizontal Application:
Standard for power generation, process industry and marine/ Water flow capacity: 10 t/h to unlimited
Vertical Application:
Where a small footprint is required / Water flow capacity: 10 to 650 t/h
Nuclear Application:
Ideal for nuclear power plants/ Water flow capacity: unlimited
Full vacuum as well as over pressure design, operating pressure down to 0.2 bar (a)/ Water flow capacity: 10 to 2.000 t/h
Inside condenser:
Applicable, if demi-water deaeration inside of condensers is necessary, operating pressure 0.1 to 0.2 bar (a)/ Operation with or without external steam source