Waterguide - Blowdown unit

What is the function of a blowdown unit?

If pure water vaporises or evaporates in water circuits it leads to a thickening or salting of the water contents. Blowdown units automatically control the salt content in the circulating water and protect cooling water circuits from water-related deposits and corrosion. The blowdown units and bypass measuring distances are for monitoring and limiting thickening in open coolant circuits and air washers.

Herco offers pre-assembled, ready-to-connect blowdown unit for automatic control of the salt content in the circulating water of cooling and humidifier circuits. Depending on the controller, the unit has lots of different settings and logging options. Up to three dosing pumps can be actuated simultaneously.



More information about blowdown technology you will find in our product center:


Blowdown units are relevant for the following industry:


Cooltrol data blowdown controller

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