SYTOP Thermocouple Protection Tube

Thermocouples are indispensable temperature measurement instruments in industrial production and scientific research applications. However, harsh environments such as continuous high temperatures and strong corrosion can significantly impair their measurement accuracy and service life. Thermocouple protection tubes effectively address this challenge, ensuring stable operation and precise temperature measurement for thermocouples.

Working Principle and Advantages

Thermocouple protection tubes encapsulate thermocouples within specially designed metal tubes, leveraging the metal tubes' high-temperature resistance, corrosion resistance, and impact resistance to isolate the thermocouples from harsh external environments. This prevents the thermocouples from being exposed to high temperatures, medium corrosion, and mechanical impacts. Compared to traditional protection methods, this approach provides more durable and reliable protection in complex operating conditions, enhancing measurement stability.

How to Select Thermocouple Protection Tubes

When selecting protection tubes, key considerations include high-temperature resistance, high-pressure resistance, corrosion resistance, and measurement accuracy. Additionally, materials and structures must be chosen based on operating conditions, such as temperature, pressure, and corrosion environment, to achieve optimal protection performance.

Types of SYTOP Thermocouple Protection Tubes

SYTOP specializes in the temperature measurement industry and offers two core material types of thermocouple protection tubes to meet diverse temperature measurement requirements.

• Cobalt alloy protection tubes: These tubes feature wear resistance, erosion resistance, corrosion resistance, and high-temperature resistance, enabling stable operation at temperatures ranging from 800 to 1200°C. They are suitable for applications such as cement plants, power plants, and waste incinerators, and they are capable of withstanding abrasion from sand and gravel as well as corrosion from special gases. Although relatively expensive, they offer a long service life and reliable performance.

• Metal-ceramic thermocouple protection tubes: These tubes resist high temperatures, corrosion, and impact and have excellent thermal shock resistance. The 1200°C model is suitable for salt bath furnaces, while the 1700°C model can be used in special conditions such as high-temperature steel smelting. These tubes have low impurity shedding and do not contaminate the steel melt, ensuring accurate temperature measurement.

Maintenance and Care of Thermocouple Protection Tubes

To ensure the performance of protection tubes, it is necessary to regularly clean surface dust and dirt, check the sealing performance, and promptly address any leaks. Additionally, a reasonable replacement and upgrade plan should be formulated based on operating conditions to ensure the accuracy and stability of temperature measurement.

With the development of technology, the application of thermocouple protection tubes will become more widespread. SYTOP will continue to innovate and develop high-performance products to provide more precise and reliable temperature measurement solutions for industry and research.