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Leak Detection With pH

Source: Emerson Process Management, Rosemount

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Application Note: Leak Detection With pH

Virtually all industries from food and beverage to chemical processing use heat exchangers, condensers, or jacketed vessels.

Leakage of the process into the cooling water represents a loss of product and can be a source of fouling or corrosion in the cooling water system.

Conversely, leakage of the cooling water into the process can be a source of contamination. An example is the leakage of cooling water into steam condensate, which is a source of contamination in the steam-water circuit.

Principle Of Leak Detection Using pH

For a leak to be detected by pH, a small amount of contaminant must cause a measurable change in the pH of the sample being monitored. In general, when the sample pH is near neutral (pH 7.0), the pH response is greater, resulting in increased sensitivity to detect leaks.

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Application Note: Leak Detection With pH