Overview

The vortex flowmeter is a type of velocity flowmeter designed based on the Kármán vortex street principle. It is primarily used for measuring the flow of fluid media in industrial pipelines, including gases, steam, and liquids, for process control and measurement applications.

The LUGB series vortex flowmeter, depending on the selected configuration, can provide the following functions: measurement of temperature, pressure, instantaneous flow, and totalized flow of pipeline media, pulse output, (4–20) mA analog signal output, RS485 communication (Modbus RTU protocol), IoT connectivity via GPRS.

Vortex flowmeters are widely applied in industries such as heating, gas supply, chemical, environmental protection, metallurgy, textiles, steel, pharmaceuticals, papermaking, and wastewater treatment. They are suitable for measurement and control of superheated steam, saturated steam, compressed air, general gases (e.g., oxygen, nitrogen, hydrogen, natural gas, coal gas), as well as water and various liquids (e.g., water, gasoline, alcohol, benzene, etc.).

Features

• No Moving Parts: The flowmeter body contains no moving components, ensuring high reliability, long-term stability, and a simple structure that is easy to maintain.
• Stable Pulse Output: The sensor output is a pulse frequency signal, linearly proportional to the actual flow rate of the measured fluid, with zero drift and excellent stability.
• Multiple Configurations: Available in various structural designs, including in-line and insertion-type flow sensors.
• High Accuracy: Measurement accuracy up to ±1.0% for liquids and ±1.5% for gases.
• Low Pressure Loss: Pressure drop is approximately 1/4 to 1/2 that of an orifice plate flowmeter, making it an energy-saving instrument.
• Flexible Installation: Can be installed horizontally, vertically, or at an inclined angle depending on pipeline conditions.
• Enhanced Circuit Protection: Built-in surge protection and strong adaptability to varying site conditions.
• High-Precision Probe: Equipped with a piezoelectric crystal vortex sensor for stable signal acquisition.
• The 316L stainless steel housing offers excellent corrosion resistance, including resistance to intergranular corrosion, alkali solutions, and most organic and inorganic acids.
• Long-Life Lithium Battery: Powered by a 3.6V high-energy lithium battery with high energy density and a service life exceeding one year.
• Wide Temperature Adaptability: Strong resistance to both high and low temperature environments; environmentally friendly.
• Wide Measurement Range: Turndown ratio from 1:5 up to 1:30.
• Reynolds Number Independence: Within a certain Reynolds number range, output signal frequency is unaffected by changes in fluid physical properties or composition. The instrument coefficient depends solely on the geometry of the bluff body, eliminating the need for fluid property compensation and generally requiring no recalibration after part replacement.