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Title: Operation And Calibration Of The Insertion Turbine Meter
Author: Michael E. Balch
Source: 1982 Appalachian Gas Measurement Short Course
Year Published: 1982
Abstract: This differs slightly from the more familiar full bore turbine which presumes to measure the total flow of fluid in a pipeline. So why bother sampling the velocity measurement when the full bore measures the total flow? There are at least three very good reasons: 1. It is hot tappable into the line. Thus not requiring the flow to be shut down for eitheroriginalinstallationsor periodic maintenance. 2. It comes about as close as any meter can to being a universal meter. The identical meter can be hot tapped into line sizes 3 to 40 inches in diameter. The identical meter, with only perhaps a rotor change, can be used on both liquids and gases. 3. Thirdly, with the other two benefits is it also economically feasible? Not being affected by line size and being hot tappable into the tine allows the insertion type flowmeter to enjoy a flat cost whereas full bore meters increase in cost exponentially with line size.

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