The vortex flowmeter is a volumetric flowmeter that measures the volumetric flow rate of a gas, vapor or liquid, the volumetric flow rate of a standard condition, or the mass flow rate according to the principle of Karman vortex. It is mainly used for flow measurement of industrial pipeline medium fluids, such as gas, liquid, steam and other media.
It is characterized by small pressure loss, large measuring range and high precision. It is almost unaffected by parameters such as fluid density, pressure, temperature and viscosity when measuring the volume flow rate. No moving mechanical parts, so high reliability and low maintenance. Instrument parameters can be stable for a long time. The vortex flowmeter uses a piezoelectric stress sensor with high reliability and can operate in the operating temperature range of -20 °C to +250 °C. There are analog standard signals and digital pulse signal outputs, which are easy to use with digital systems such as computers. It is a relatively advanced and ideal measuring instrument.

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