Category Archives: Useful Information Miscellaneous

Dryer Configurations – Benefits of Upflow?

Drying is almost always the longest step in a cleaning process.  Because of this, anything that will speed up the drying process is of special interest to the process engineer.  Hot air drying is, by far, the most common means … Continue reading

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Sound Physics – Nodes and Antinodes – Part II

When a sound wave encounters an object or discontinuity in the sound conducting medium, at least part of the sound is reflected.  The way the sound reflects depends in large part on the rigidity of the reflecting surface.  If the … Continue reading

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Sound Physics – Nodes and Antinodes – Part I

I’ve made reference in the blog before to the fact that some surfaces are good candidates for ultrasonic cleaning while others are either difficult or impossible to clean.  In general, surfaces that are hard (metal, glass) are easily cleaned using … Continue reading

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Weirs – Four-Sided Overflow

The final type of weir I’ll discuss in this series is the four-sided overflow weir in which liquid overflows all four sides of a process tank. This type of weir is normally found in equipment designed for “precision cleaning” applications … Continue reading

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Maximizing Overflow Weirs for Skimming Applications

The concept and purposes of an overflow weir are pretty simple but making them perform for maximum benefit can be a challenge.  For the best performance of a weir used in a skimming application, liquid should overflow the entire width … Continue reading

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More About Overflow Weirs

Overflow weirs have specific purposes as they are utilized in industrial cleaning equipment.  Also, as one might expect, there are several manifestations of the overflow weir which perform various functions.   A simple “standpipe” is a form of weir as is … Continue reading

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Overflow Weirs

Overflow weirs are common features of industrial cleaning systems.  Simply, a weir is much like a dam that holds back a river to form a lake.  In the case of a cleaning system, the “lake” is usually a tank of … Continue reading

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Rinse to Resistivity

Previous blogs have discussed the importance of rinsing as part of the overall cleaning process.  Because of its importance, many schemes have been devised to assure that parts are adequately rinsed after cleaning.  Most of these schemes embrace the “more … Continue reading

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Temperature Sensor Selection and Placement

Meaningful temperature measurements depend on the selection of the proper sensors and controls and the proper placement of sensors to accurately measure the targeted temperature.  For example, it was previously stated that bimetallic sensors, in most cases, ultimately sense the … Continue reading

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More Temperature Sensors – Electrical

Preceding blogs have described a number of mechanical means for measuring temperature based on the expansion and contraction of liquids and solids.  Another major classification of temperature sensors are based on electrical phenomenon. Thermocouples – A thermocouple sensor utilizes a … Continue reading

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