Vortex flowmeters are velocity-type flow measurement instruments operating on the principle of the Karman Vortex Street Effect. They are widely used in industrial process control for measuring the flow of gases, liquids, and steam, with the following core advantages:
1. High Measurement Accuracy and Strong Stability
Measurement accuracy is not significantly affected by changes in medium parameters such as pressure, temperature, and density. The accuracy can reach ±0.5%R for liquids, and ±1%R for gases and steam, with a repeatability error of less than ±0.2%. Equipped with piezoelectric or capacitive detection components, it features strong anti-interference capability for signals, ensuring stable data during long-term operation without frequent calibration.
2. Wide Range of Applicable Media
It can simultaneously measure the flow of liquids, gases, and steam, such as water, acid-base solutions, air, natural gas, saturated steam, and superheated steam. With no moving mechanical parts, it will not be clogged or worn by a small amount of impurities (such as particles and fibers) in the medium, making it suitable for complex working conditions.
3. Simple Structure and Low Maintenance Costs
The sensor adopts an integrated design and supports flexible installation methods (flange connection, threaded connection, etc.), eliminating the need for additional straight pipe section modification (some models are compatible with short straight pipe sections). Without vulnerable components like rotors and impellers, daily maintenance only requires regular inspection of the sealing performance between the sensor and the pipeline, resulting in much lower operation and maintenance costs compared to positive displacement meters such as turbine flowmeters and oval gear flowmeters.
4. Wide Turndown Ratio for Flow Fluctuation Scenarios
The turndown ratio can reach 1:10~1:30, enabling accurate measurement of medium flow rates over a wide range from low to high. It is ideal for industrial processes with frequent flow variations, such as chemical reactor feeding, power plant steam distribution, and municipal gas transmission.
5. Digital Output for Easy System Integration
It supports standard signal outputs including 4-20mA analog signals, pulse signals, and RS485 (Modbus-RTU) digital signals. It can be directly connected to PLC, DCS control systems or industrial Internet of Things platforms to realize remote flow monitoring, cumulative metering and automatic control, meeting the needs of industrial digital upgrading.
6. High Temperature and High Pressure Resistance for Harsh Working Conditions
The sensor can be made of corrosion-resistant and high-temperature resistant materials such as stainless steel and Hastelloy, adapting to working conditions where the medium temperature ranges from -200℃ to +550℃ and the pressure reaches tens of megapascals. It is widely used in high-temperature and high-pressure industries such as petrochemical, metallurgy and electric power.
Post time: Dec-30-2025