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Thermowells | Bimetal Thermometers | RTD | thermocouple

What is a Thermowell?

By: Dave Dlugos, Product Technical Leader
January 31st, 2024

A thermowell is a device designed to protect temperature monitoring instruments from the damaging effects of corrosive media, high pressure and velocity in industrial applications. Without the protection of a thermowell, temperature instruments can become inoperable, putting your whole operation at risk. Ashcroft is a global leader in temperature measurement instrumentation. We created this article as part of our Understanding the Basics series to provide a foundation of information about thermowells. If you are an industry novice or just want a refresher on how thermowells work, this is a great place to start. In this article, you will discover where thermowells are used, learn about the different types of thermowells, see how they connect to the process piping and more. When you are done reading, you will also find additional resources that may interest you.

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