Corrosion Monitoring

Cooling towers, system pipework, chillers, boilers, plant and heat exchangers are an expensive investment providing essential site functions and must be well maintained to achieve best performance.

To aid in reducing corrosive effects on reactive metal surfaces a system should first be passivated to allow the internal surfaces to be coated with corrosion inhibitor. A corrosion inhibitor is then incorporated into the water treatment program for ongoing protection.  

Treatment chemicals are most effective within a narrow pH range which is more easily attained through the use of dedicated acidic or alkaline pH control. Contamination sources from processes, make-up water or the environment can significantly alter the water quality of a system and effect corrosion performance. 

Corrosion monitoring is a valuable service provided as part of our water treatment and service program to ensure the continued health of your system and includes;

  • Design, supply and installation of a corrosion coupon rack
  • Regular monitoring of corrosion performance and removal of coupons at set intervals for laboratory analysis
  • A comprehensive Analytical Report
  • Correcive action should an issue be identified.

 Corrosion monitoring can be undertaken for metals/alloys including mild carbon steel, copper, aluminium, stainless steel, brass, titanium and nickel.

4.5 corrosion coupon table


High concentrations of dissolved copper in cooling tower water can come from corroded pipework/plant and water mains. This can lead to pitting corrosion:

corrosion monitoring3


Hydro Flow has a strong reputation in reversing corrosion issues within plant systems resulting from unsuitable water treatment programs and/or contamination that have significantly reduced plant performance (and life) due to corrosion product and fouling:

4.5 Corrosion table before after