PURE WATER TREATMENT Thermal deaerator G15C-42A-Ukver3 Thermal deaerator - standard modules up to 40 m3/hour Reliable and efficient deaerator which is suitable for steam boilers, supplied complte with armature, and which can be supplied with insulation. Application A thermal deaerator is used for treatment of feed water for steam boilers. The feed water should not contain oxygen due to the fact that as long as oxygen is present in the water, corrosion will appear. If there is no oxygen present in the water, there will be no corrosion. The oxygen is supplied with the make-up water normally containing 8 - 10 mg/l. After treatment in a thermal deaerator, the oxygen content is reduced to less than 0.05 mg/l practically insoluble. Whether the heating takes place under vacuum or under pressure is in principle a secondary matter. Since an unproblematic operation with steam boilers demands a high and constant temperature, the thermal deaerator works at an excess pressure of 0.2 bar, which corresponds to a boiling point of 104 °C. Hereby, the discharge of the dissolved gases is increased, as the viscosity of the water is decreased at an increasing temperature. the top of the deaerator. A spray nozzle sprays the water in such a way that the gases can escape the layer surrounding every single water molecule. Steam is led to the bottom of the deaerator through a pressure-reducing valve, and steam injectors create the necessary turbulence in the water for an efficient deaeration. The escaped gases are led into the air through a gas vent with a restriction. For more information Please contact your local EUROWATER sales office. In general When the water is heated, the dissolved gases are liberated. If the temperature is raised sufficiently, the gases are Theory of operation The condensate and the make-up water are mixed so that a temperature of minimum 60 °C is obtained before it is led to SILHORKO-EUROWATER A/S 8660 Skanderborg Denmark Phone: +45 86 57 12 22 [email protected] www.eurowater.com Our World is Water

Thermal deaerator G15C-42A-Ukver3 f Vapour / oxygen / undesirable gases Relief valve a Steam-»--CkK" Level switch Steam regulating valve Boiler feedwater - -HXr-^BXI Level switch HXh- From condensate tank Boiler feed pump Feed pump Plant design A EUROWATER thermal deaerator type C is constructed according to CE regulations and is CE marked. The deaerator is supplied complete with the necessary armature which comprises steam pressure reducing valve and relief valve, level control, water level indicator, thermometer, pressure gauge and sample valve with cooler. The deaerator tank is made of steel...