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This article was originally published on December 12, 2022, and updated on June 2, 2025. Depending on the industry and application, your choice of pressure gauge construction can significantly affect the performance and lifespan of your instrument and your operation. Bourdon tube pressure gauges are known for their reliability and accuracy, making them a common choice for use across process, industrial and OEM markets. Ashcroft is a pioneer in pressure measurement instrumentation and holds the distinction of acquiring the U.S. patent rights for the Bourdon tube from its inventor, Eugène Bourdon, in 1852. This led to the widespread adoption of the "Ashcroft Gauge" in American industry, including railroads, steam locomotives, maritime vessels, factories and industrial plants. Over the years, Ashcroft has continued to innovate, developing various Bourdon tube constructions to meet the evolving needs of different applications. Read on to learn about Bourdon tube construction types, how they operate and where they work best. You will find links to additional articles and resources related to pressure gauges with guidance on selecting the most suitable one for your particular requirements.