NEWS CENTER
Why are magnetic level gauge widely used for level measurement in various industries?
Time：
2026-03-26
In numerous industrial sectors such as petroleum, chemical, power, and pharmaceutical, liquid level measurement is an indispensable part of the production process. Among the dazzling array of liquid level measuring instruments, the magnetic level gauge has become one of the most widely used measuring tools due to its unique advantages. So, why has it won the favor of various industries?
The core principle of the magnetic level gauge is based on magnetic coupling and the principle of communicating vessels. Its main body consists of a measuring tube and a float. The measuring tube is connected to the container being measured via a flange, forming a communicating vessel structure, ensuring that the liquid level inside the tube remains consistent with the liquid level in the container. As the liquid level changes, the float, with its built-in permanent magnet, moves up and down within the measuring tube, driving an external tilting column or plate to rotate 180° through magnetic coupling—typically indicated by red for liquid presence and white for absence—thus visually displaying the liquid level height. The entire process requires no power supply, relying entirely on physical principles for measurement.
The primary reason for the widespread application of the magnetic level gauge is its intuitive display and maintenance-free operation. Operators can directly read the liquid level with the naked eye, without the need for any auxiliary equipment, greatly reducing the complexity of on-site inspections. Meanwhile, it employs a non-contact measurement method, completely isolating the measuring tube from the display component, thus eliminating the safety hazards of leakage and breakage inherent in traditional glass tube level gauges. It is particularly suitable for harsh operating conditions such as high temperature, high pressure, and strong corrosion.
Furthermore, this instrument boasts a simple structure and high reliability. It has no complex electronic components and is unaffected by the physical properties of the medium, such as conductivity and dielectric constant, making it suitable for level measurement of almost all liquid media. By selecting different materials, such as 304 stainless steel, 316L, PP, and PTFE, it can easily handle special scenarios such as acid and alkali corrosion, cryogenic temperatures, and high temperature and high pressure. Users can also add accessories such as remote transmitters and alarm switches to achieve remote monitoring and interlocking control of the level signal, meeting the requirements of automated production.
From an installation and maintenance perspective, the magnetic level gauge also performs excellently. It can be side-mounted or top-mounted, offering flexible and convenient installation; daily maintenance is minimal, requiring only periodic cleaning of the float and the inner wall of the measuring tube to maintain long-term stable operation. These advantages—intuitive and reliable, safe and explosion-proof, highly adaptable, and easy to maintain—make magnetic level gauge a "perennial favorite" in industrial production for level measurement, playing an irreplaceable role in ensuring production safety and improving operational efficiency.
Prev： Troubleshooting Guide for Magnetic Level Gauge Columns Not Following Liquid Level Changes
Next： How can a magnetic level gauge operate normally in a low-temperature environment?
Hot news
Vacorda Instruments Showcases at the 2026 Chengdu Petrochemical Technology and Equipment Expo
Vacorda Instruments made a striking appearance at Booth B225 in Hall 7, showcasing its full range of industrial measurement and control products alongside customized solutions for the petrochemical industry.
On August 12, 2026, the 34th China International Measurement Control and Instrumentation Exhibition (MICONEX) grandly opened at the Hefei Binhu International Convention and Exhibition Center. As a national-level high-tech and "Specialized, Refined, Distinctive, and Innovative" (SRDI) enterprise in the field of industrial automation instrumentation, Sichuan Vacorda Instrument Manufacturing Co., Ltd.
On June 29, 2026, Vacorda Instruments marked the milestone of its 30th anniversary. Since its inception in 1996, the company has remained steadfast in the field of process industry automation instrumentation. Upholding quality through craftsmanship and driving growth through innovation, Vacorda has evolved from a startup team into a professional industrial measurement instrument manufacturer—possessing both core technical capabilities and significant market influence—thereby writing a success story of industrial enterprise.
On June 9, 2026, the 2026 China International Petroleum & Chemical Technology and Equipment Exhibition opened at the Shanghai New International Expo Centre. Sichuan Vacorda Instrument Manufacturing Co., Ltd., a national high-tech and specialized enterprise in the field of industrial automation instrumentation,
Vacorda Instruments showcased at the 31st Azerbaijan International Oil and Gas Exhibition
As a high-tech and specialized enterprise deeply rooted in the field of industrial automation instrumentation, Sichuan Vacorda Instrument Manufacturing Co., Ltd. made a strong debut at this international industry event, showcasing its core measurement and control instruments and customized solutions for the entire oil and gas industry. This demonstrated the company's robust "Made in China" capabilities.
As a high-tech and specialized enterprise deeply rooted in the field of industrial automation instrumentation, Sichuan Vacorda Instruments Manufacturing Co., Ltd. made a strong debut at this international industry event,
Address：No. 41 Chengxi Road, Yantan Industrial Park, Zigong, Sichuan Province, China
E-mail：sales@vacorda.com
Copyright © 2024 Sichuan VACORDA Instruments Manufacturing Co., Ltd.
