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Coriolis Flow Meters

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This type of flow meter is dubbed the Coriolis because it utilizes the Coriolis effect, an inertial force that is caused by the Earth’s rotation, in order to obtain a highly accurate measurement of mass flow as well as the density of the fluid. A relatively new type of flowmeter, Coriolis flow meters began being used in industrial applications in the early 1980’s. Read More…

Coriolis Flow Meters Also known as mass flow meters or inertial flow meters, Coriolis flow meters function to measure the mass per unit time, or the force of acceleration, that is flowing through a system. The mass per unit time, also referred to as the mass flow rate, is a calculation of the mass of the fluid as it travels past a fixed point per unit time.
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Leading Manufacturers

Monterey, CA  |  831-373-0200

Sierra manufacturers high performance mass flow meters and controllers for nearly any gas, liquid or steam. Customers choose Sierra when they need an accurate and repeatable flow measurement, short delivery lead times, expert flow advice and long term support. When it matters, choose Sierra. Visit www.sierrainstruments.com.

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Sierra Instruments $$$

Sturtevant, WI  |  262-886-2695

SIKA is a developer and manufacturer of flow control products and a wide variety of other measuring and monitoring systems. Our inventory includes flow sensors, flow meters, flow switches, and many more. We know that flow solutions aren't one-size-fits-all, which is why we provide consultation and flow management solutions that are individualized and customized to your requirements. When you choose SIKA, you will receive efficient, durable products and customer service tailored to your needs.

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SIKA USA $$$

Tucson, AZ  |  888-290-6060

We are manufacturers of Internally Compensated Laminar (ICL) mass flow meters and mass flow controllers. Flow rates as low as 0.5SCCM full scale, as high as 1500SLPM full scale. Standard features: local display, 14-gas calibrations per unit, digital and analog communication, 100:1 turndown.

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Alicat Scientific, Inc. $$$

Itasca, IL  |  888-539-3623

Keyence is a leading supplier of flow meters and many other automation components. Our flow meters are compatible with everything from compressors to receiving tanks to machine drop points, while measuring both overall usage and costly leakage amounts. Additional features include multiple numerical and graphical data displays. Visit our website to find out more about our products.

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Keyence Corporation of America $$$

Wilmington, NC  |  910-392-2490

Since 1984, Eastern Instruments has been engaged in the development of solid particle mass and airflow measuring and control systems for clients in the food, petrochemical and agricultural industries. Many of the “legend” companies use Eastern Instruments’ in-processes, making brands that touch the lives of millions every day.

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Eastern Instruments $$$
placeholder image Sierra Instruments SIKA USA Alicat Scientific, Inc. Keyence Corporation of America Eastern Instruments

Additional applications of Coriolis flow meters include continuous blending, combustion control, fermentation, fueling, vial filling, bottling, and concentration measurements. As a result, Coriolis flow meters are not only useful in the industrial manufacturing industry, but in a wide range of industries including petrochemical, food and chemical processing, automotive, and pharmaceutical.

SITRANS FC410 Coriolis Flow Meters SITRANS FC410 Coriolis Flow Meters - Siemens Process Instrumentation

Coriolis flow meters are typically constructed from a U-shaped flow tube (which is filled with fluid but has not flow), a driving unit and displacement sensors, with an inlet and an outlet to allow for flow.

To begin, the flow is guided into the flow tube from the inlet, from which point an oscillating excitation force is applied to the tube in order to cause vibration. Once the vibration is achieved, the flow of the fluid will cause a rotation of the tube caused by the Coriolis effect. This effect causes rotation because it causes acceleration on one side of the tube (the inlet) and deceleration on the other side of the tube (the outlet). As a result, the inlet is able to register the flow before the outlet is able to, which results in a time delay. This time delay is directly proportional to the mass flow rate of the fluid or gas.

Coriolis flow meters are able to measure the mass flow rates of a broad spectrum of fluids and gasses including hydrogen gas, bitumen, natural gas, and water. Since some of the fluids or gasses are corrosive, Coriolis flow meters are often constructed from such corrosion-resistant materials as stainless steel and hastelloy.

Coriolis Flow Meter Informational Video