COMES is also active with design, engineering and manufacture of deaerators, acc. to STORK Thermeq B.V. technology.  Sprayer and Process Engineering are in our licensor scope.

The Stork Spray-type deaerator is a single-vessel patented design with a world wide installed base of more than 5.000 deaerators. Applying the Stork-deaerator in power plant design caters to three basic customer needs: reducing capital investment, providing the lowest Total Cost of Ownership (TCoO), delivering excellent performance combined with high reliability.




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



Horizontal: standard for power generation, process industry and marine/ Water flow capacity: 10 t/h to unlimited

Vertical: where a small footprint is required / water flow capacity: 10 to 650 t/h

Nuclear: ideal for nuclear power plants/ Water flow capacity: unlimited

Vacuum: 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


Diameter: max. Ø 6,000 mm.

Length: 45,000 mm./section

Shell Thickness: max. 100 mm.

Temperature min./max.: -40°  / 600°C

Pressure: max. 450 bar

Weight: max. 200 tons



Carbon Steel, Carbon Steel Alloy, Stainless Steel, Clad Steel (Monel), Duplex, Super Duplex, Cu-Ni Alloy, Cladded materials etc.