Boiler Feed Water

The pressure of the steam (0,5 - 100 bar) determines the temperature and energy capacity, but also the quality of the feed water.

The general rule is the higher the pressure the more strict the quality of the boiler feed water.
Problems caused by impurities in the feed water are:

• Scaling
• Corrosion
• Foaming and Priming (formation of droplets)
• Carryover in the steam (of volatile minerals)

Important parameters of the feed water are:

• pH
• Hardness
• Oxygen and carbon dioxide concentration
• Silicates
• Dissolved solids
• Suspended solids
• Concentration organics

The installation to produce boiler feed water use an array of water treatment techniques like:

• Reversed osmosis
• Ion exchangers
• Chemical dosing 
• Deaeration
• Membrane contractors
• Electrodeionization (EDI)

For more information check our web page about boiler water treatment.

You can find a description about characteristics of ideal boiler feed water.