Let's first understand the key technical advantages and selection considerations of electromagnetic flowmeters:

1. Medium Requirements: The medium must be a conductive liquid (conductivity generally ≥5 μS/cm).  It cannot measure gases, oils, or pure water.

2. Installation Conditions: Requires full pipe installation to avoid interference from bubbles or sediment, and requires straight pipe sections before and after the meter.

3. Material Selection: Lining (e.g., PTFE, rubber) and electrodes (e.g., Hastelloy, titanium) should be selected based on the corrosiveness, abrasiveness, temperature, and pressure of the medium.

4. Accuracy and Diameter: Common accuracy is ±0.5% to ±0.2%, with a wide range of diameters (DN2 to DN3000), suitable for large-diameter flow measurement.

Electromagnetic flowmeters are instruments that measure the volumetric flow rate of conductive liquids based on Faraday's law of electromagnetic induction. Their features of having no moving parts, high measurement accuracy, good stability, and extremely low pressure loss have led to their widespread use in various industrial fields. The main application scenarios are as follows:

1. Wastewater treatment

They can be used to measure liquid media such as domestic sewage, industrial wastewater, seawater, brine, and raw water, with a measurement accuracy of up to 0.2%, enabling efficient utilization of water resources.

2. Chemical and Slurry Applications

For corrosive liquids, suitable linings (such as PTFE, PFA) and electrode materials (Hastelloy, titanium, etc.) can be selected for measuring acid, alkali, and salt solutions. The scraper-type electromagnetic flowmeter (as shown in Figure 2) is suitable for measuring the flow rate of highly abrasive slurries, and the product is explosion-proof certified, making it suitable for hazardous areas.

3. Food Applications

Designed with food-grade SS304L or SS316L materials, polished lining, and SUS316L electrodes, this product is used for measuring 3A food products, milk, fruit juices, beverages, and other media. It is extremely clean and hygienic, with no stagnant areas to prevent bacterial growth, and meets high hygiene standards.

Electromagnetic flowmeters, with their advantages of high accuracy, corrosion resistance, no pressure loss, and adaptability to complex media, have become one of the core tools for measuring the flow rate of conductive liquids. If you have any needs or would like to learn more about this flowmeter, please feel free to leave us a message or contact us. We will provide you with more detailed product information.