From Flow Measurement
Most flow measurements are made by meters that are installed in-line such that
all of the fluid passes through the meter body. Insertion (sampling) flow measurement
is a different technique because the meter is inserted into the pipe and the
flow rate is inferred from the measurement at a point in the flow stream.
There are both similarities and differences between in-line and insertion techniques.
On the one hand, fluid properties, pipe flow phenomena, and the basic
principles of flow sensing are the same. There are significant differences, however,
in operating principles, installation, and applications.
| What Is an Insertion Flowmeter? An insertion flowmeter consists of three basic components: a sensor, a probe assembly, and electronic circuitry. The sensor provides a signal proportional to the velocity or flow rate at a point in the flowstream from which total flow rate is inferred. The circuitry properly conditions the raw signal from the sensor and performs required computational functions. The probe assembly rigidly positions the sensor within the flow and provides a process seal. | An insertion meter is inserted into the line. An inline meter is installed in the line. |
Where Can an Insertion Meter Be Used?
An insertion meter can be used...
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Products & Services
Topics of Interest
Why should a separate chapter be written about custody transfer measurement since flow measurement is flow measurement? This is true, except that, when money is to be exchanged, achieving the best...
Hoffer Flow Controls continues to supply many "insertion" type turbine flowmeters to the petroleum pipeline industry. This type of meter is commonly used for leak detection and not custody transfer.
Versatility and low installation cost make the target flowmeter a viable candidate for many difficult flow measurement applications. Full bore, in-line meters are available in sizes from 1/2 to 6...
Turbine flowmeters are designed to accurately measure the flow of liquids and gases in pipes. They are volumetric flow measuring devices and have been commercially available since the late 1940s.
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