Interpretation of intelligent electromagnetic flow meter coating material selection method

According to the different media to be measured, the selection of coating materials for smart electromagnetic flowmeters is also different. Ordinary water-based media, such as sewage, ionized water, etc. The coating materials used are not the same, including the selection of electrodes used for the measurement. According to experience, the guiding method for the selection of coating materials in general is as follows.
1. Ordinary rubber, natural rubber, soft rubber, hard rubber.
The working temperature is 60°C, which is characterized by high elasticity and good wear resistance. Generally used in urban water supply and drainage and other fields, the corrosion resistance is relatively weak. 2. Polytetrafluoroethylene, also known as PTFE, also known as F4.
One of the most commonly used coating materials,Due to its stable chemical properties, it is generally used for sanitary liquids or highly corrosive liquids, such as concentrated acids and alkalis. 3. Polyfluoroethylene propylene, also known as F46.
This material is similar to PTFE, but its wear resistance is stronger than that of PTFE, and the temperature of the same medium can reach 100°C. 4. Polyvinyl fluoride, also known as Fs.
Similar characteristics to the F4 material, but the temperature is slightly lower. Generally, the average temperature does not exceed 80°C, which is cost-effective and lower than F4 material.
5. Neoprene, also known as CR, also known as neoprene.
It is characterized by good wear resistance and excellent elasticity, and is generally used in water supply and drainage, sewage treatment and other fields. The corrosion resistance is slightly poor and it does not rdoes not resist oxidation. 6. Polyurethane rubber, also known as polyurethane.
It has excellent wear resistance, but it is not sufficiently resistant to corrosion and the temperature should not exceed 80°C. It is typically used in industrial and mining environments with high wear resistance requirements, such as the measurement of media such as ore slurry and coal slurry. .
7. Ceramic material
Ceramic is undoubtedly the most premium product among all materials. The disadvantage is that the price is unfounded, the production process is complicated, the process requirements are extremely high, and the price is extremely high.

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