Category: Water & Air Contamination
Jim Fitch authored articles & papers
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Five Ways Aerated Oil Wrecks Machines
We’re told machines should not be allowed to swallow air. But what if they do? What harm could be caused by this bubbly stuff anyway? Do we really have to make the machine burp? Read More
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Moisture… the Second Most Destructive Lubricant Contaminant, and its Effects on Bearing Life
Moisture is generally referred to as a chemical contaminant when suspended in lubricating oils. Its destructive effects in bearings can reach or exceed that of particle contamination, depending on conditions. Read More
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Ten Things You Probably Didn’t Know About Air Contamination
Anybody who has been in the lubrication field for at least a couple of years has likely been badgered by problems relating to air contamination. Indeed, aeration and foam present many serious reliability concerns which merit immediate attention by machinery maintainers. Read More
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The Four States of Water in Oil
In the last 30 years or so, most of the literature, including Noria’s publications, refer to water as having three states. Free water has been redefined as being water that, by force of gravity, will phase out of the oil. This means it will separate below (most common) or above the oil phase depending on… Read More
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Control Moisture Ingression with Tactical Inspection 2.0
You don’t have to remove what you don’t allow to enter. Indeed, it’s hard to challenge the logic and value of controlling water ingression, but because moisture is everywhere, achieving bone-dry oil through exclusion alone may not be practical or even necessary. Read More
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Strategies to Achieve and Sustain Dry Oil
Countless times, I’ve devoted this column to stressing the virtues of contamination control. With each passing year, we seem to receive more and more user feedback detailing and validating the business case for clean, dry and cool oil. Read More
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The Hazards of Water Contamination in Oil
Most of us are well aware of the enormous damage water can exact on a machine and its lubricants. However, the magnitude of this potential destruction seems to depend directly on five enabling factors. These factors are listed below and are further diagramed in Figure 1. Read More
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Filters can Remove Water from Hydraulic Fluid
Here is the latest component for hydraulic system filtration and contamination control Water is a very serious contaminant in oil hydraulic systems. Yet, water contamination is rarely identified, poorly understood, and, until recently, considered very difficult to remove. Read More
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Moisture… the Second Most Destructive Lubricant Contaminant, and its Effects on Bearing Life
Water, once in an oil, is in constant search of a stable existence. _Unlike oil, the water molecule is polar, which greatly limits its ability to dissolve; and many additives have polar extremities which can markedly increase water solubility. Read More
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Filters can remove the water from hydraulic oil
Water in a hydraulic system constitutes a very serious form of oil contamination. Technically, water contamination is rarely recognized as such, poorly understood, and, until recently, considered difficult to combat. Read More
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Filters kunnen het water uit hydraulische olie verwijderen (Filters can remove the water from hydraulic oil)
Water in a hydraulic system constitutes a very serious contaminant of the oil. Nevertheless, water contamination itself is rarely recognized, poorly understood, and until recently, considered difficult to combat. Read More