ORP Measurement Minimizes Corrosion

Oxidation reduction potential (ORP) measurement—a key parameter for minimizing corrosion in power plant equipment such as turbines and piping—has been added to the HPW7000 High-Purity Water Measurement System.

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The HPW7000 is an electrode mounting assembly designed specifically for pH measurement in high-purity water applications. The special flow chamber and electrode mounting simplifies installation and calibration while providing a pH measurement said to be unsurpassed in accuracy and stability. Adding the ORP electrode gives plant chemists, plant managers, maintenance engineers and safety and reliability engineers a more accurate picture of oxidation levels in high-purity water systems where the conductivity of the water samples is less than 10 microsiemens per centimeter (uS/cm). “Reliably measuring ORP levels in these applications has historically been complicated, but it’s a worthwhile investment if plants can use the data to maintain optimal reagent levels in the feedwater and thus reduce corrosion,” says Thomas Griffiths, global product marketing manager.

Honeywell Process Solutions

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