Silicon Carbide Protective Tube High Temperature Thermocouples

I. Core Parameters

II. Product Characteristics

Advanced Temperature Measurement Principle: Operates based on the Seebeck effect. It consists of two different metal wires welded to form a junction. When there is a temperature difference between the two junctions, a thermoelectric potential is generated, converting temperature changes into voltage signals for accurate temperature measurement.

High Temperature Resistance of SiC Tube: The silicon carbide protective tube can maintain stable performance in a high-temperature environment up to 1800°C, with no significant change in strength at 3000°F, suitable for various high-temperature industrial scenarios.

Excellent Corrosion Resistance: Possesses strong resistance to chemical corrosion and oxidizing atmospheres, enabling normal operation in harsh corrosive environments such as metallurgy, ceramics, and chemical engineering.

Good Thermal Shock Stability: Can withstand rapid temperature changes without being easily damaged by thermal expansion and contraction, adapting to working conditions with frequent temperature fluctuations.

High Thermal Conductivity Efficiency: The thermal conductivity of the SiC tube is about 5 times that of stainless steel, which can quickly and accurately sense temperature changes, ensuring the timeliness of temperature measurement.

Outstanding Wear Resistance: The wear resistance of the SiC tube is 1.5 times that of tungsten carbide, ensuring a long service life in high-temperature and high-wear industrial environments.

III. Related Component Specifications

Silicon Carbide Protective Tube: Dimensions can be customized according to customer requirements to adapt to different installation environments and the sizes of measured objects.

Explosion-Proof Thermocouple Model (Compatible): WR-24/44-B (Type selection parameters: ① Thermocouple type: K/E/J/T/N; ② Protective tube diameter: which shall be clearly marked during type selection).

Explosion-Proof Thermal Resistance Model (Compatible): WZP-24/44-B (The digit in the model represents the protective tube diameter).

Cable Entry Device (Explosion-Proof Type): Users need to provide clamping measures by themselves to prevent the cable from being subjected to tension or torsion.

Explosion-Proof Joint Surface (Explosion-Proof Type): Maintenance must be contacted with the product manufacturer, and disassembly and maintenance are not allowed by oneself.

IV. Application Scenarios

High-temperature combustion systems

Various high-temperature furnaces

Metallurgy and ceramic industries

V. Product Advantages

Excellent High Temperature Resistance: The silicon carbide protective tube can withstand a high temperature of 1800°C, breaking through the temperature measurement upper limit of ordinary thermocouples and meeting the temperature measurement needs of high-end high-temperature industries.

Strong Environmental Adaptability: With the characteristics of corrosion resistance, thermal shock resistance and high wear resistance, it can operate stably for a long time in harsh working conditions such as metallurgy and chemical engineering, reducing the frequency of equipment failures.

Accurate and Timely Temperature Measurement: The high thermal conductivity of the SiC tube can quickly transmit temperature changes, and combined with the Seebeck effect principle of the thermocouple, it ensures the accuracy and real-time performance of temperature measurement.

High Customization Level: The dimensions of the SiC tube can be customized according to the customer's installation environment and measured objects, adapting to the installation and use needs of different industrial scenarios.

High Safety Level: The explosion-proof model complies with international and domestic explosion-proof standards, and can be used in flammable and explosive dangerous environments, improving the safety of industrial production.

VI. Frequently Asked Questions

Can the temperature measurement range of the silicon carbide protective tube high-temperature thermocouple be further increased?

The temperature measurement range of mainstream products is currently 1000°C to 1800°C. If a higher temperature measurement requirement is needed, customers can communicate with the manufacturer to customize products with special materials and processes. However, the feasibility of customized products needs to be evaluated in combination with actual working conditions, and the cost will increase accordingly.

What to do if the silicon carbide protective tube is worn or cracked?

The damaged silicon carbide protective tube must be replaced in a timely manner and cannot be used continuously, otherwise it will affect the temperature measurement accuracy and even damage the thermocouple core. It is recommended to choose the original matching silicon carbide tube for replacement to ensure the matching of dimensions and performance. During installation, handle it with care to avoid secondary damage.

How to extend the service life of the thermocouple in a highly corrosive chemical environment?

In addition to the corrosion resistance of the product's own silicon carbide protective tube, the thermocouple can be regularly cleaned and inspected on the surface to remove attached corrosive media in a timely manner. At the same time, according to the characteristics of the chemical medium, an additional anti-corrosion protective layer (such as Teflon coating) can be added to further improve the corrosion resistance.

What are the special installation requirements for the explosion-proof silicon carbide protective tube high-temperature thermocouple?

During installation, it is necessary to strictly follow the installation specifications for explosion-proof equipment to ensure the tightness of the explosion-proof joint surface, and the cable entry part shall be equipped with clamping measures as required. The installation position shall avoid severe vibration and impact to prevent damage to the explosion-proof structure. It is recommended to be operated by professional explosion-proof equipment installers.

Manual Welding

Automatic Welding

Insulation Testing

Laser Marking

Warehouse Managing

Thermocouple Assemble

Vacuum Leak Detection

Surface Polishing

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