The operation of steam generating units with a high heating surface load requires boiler feedwater that is treated in accordance with TRD 611, EN 12952 Part 12 or EN 12953 Part 10. The boiler feedwater must be free from hardness-producing chemicals, in order to avoid the build-up of scale on the heating surfaces of the steam generating unit. The aggressive properties of dissolved oxygen and carbon dioxide provokes severe corrosion damage on metal materials. Aggressive gases are reliably removed in the GESTRA feedwater deaerating system.

The feedwater deaerating system for boiler feedwater consists of the SW feedwater tank and the NDR deaerator dome. This system removes dissolved gases like oxygen, carbon dioxide and other gaseous substances from the condensate and softened water. We tailor the size and thermodynamic characteristics of our feedwater deaerating system to customer specifications.