Your Professional Electronic Ceramics Supplier
Established in 2002, Yixing Xiongyu Ceramics Co., Ltd. (formerly Suzhou Jingchuang Ceramics Co., Ltd.) specializes in the research, development, production, and sales of high-performance industrial ceramics and precision ceramic parts. Located in Dingyu Town, Yixing City, Jiangsu Province—renowned as the "Ceramic Capital"—the company benefits from over 20 years of industry expertise. We operate advanced production lines, including automated molding and precise sintering technologies. Our factory is equipped with state-of-the-art equipment to manufacture talc ceramics, alumina, and zirconia products known for their exceptional high-temperature resistance, insulation, and wear resistance. Our products serve diverse industries including automotive, lighting, and personal care.
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why choose us
State-of-the-Art Production Facilities
Equipped with advanced automated molding and kiln sintering technologies, our factory ensures consistent product quality and precise control over the manufacturing process.
Sales Market
Our products are widely distributed across mainland China and have successfully entered international markets, including Japan, India, and Russia, supported by stable, long-term partnerships with renowned enterprises.
Our Certificate
We maintain high standards of quality through rigorous compliance with ISO 9001, guaranteeing reliability and consistency in every product we manufacture.
Service Advantages
From pre-sale consultation to post-sale support, we offer tailored solutions, real-time production updates, and efficient problem resolution to ensure smooth cooperation at all stages.
The ceramic thermocouple protection tube is a commonly used temperature-sensing component that consists of a ceramic tube and a thermocouple. It measures temperature by detecting changes in thermoelectric potential caused by temperature variations, ensuring accurate and reliable readings in high-temperature environments.
|
Thermocouple grade |
Model |
Grade |
Temperature range ℃ |
Specifications |
Thermal response time |
|
|
OD mm |
Protection tube material |
|||||
|
Simplex type B |
WRR-130 |
B |
0~1800 |
φ16 |
Alundum tube |
< 150 |
|
Simplex type B |
WRR-131 |
B |
0~1800 |
φ25 |
Alundum tube |
< 360 |
|
Duplex type B |
WRR2-130 |
B |
0~1800 |
φ16 |
Alundum tube |
< 150 |
|
Duplex type B |
WRR2-131 |
B |
0~1800 |
φ25 |
Alundum tube |
< 360 |
|
Simplex type S |
WRP-130 |
S |
0~1600 |
φ16 |
Ceramic |
< 150 |
|
Simplex type S |
WRP-131 |
S |
0~1600 |
φ25 |
Ceramic |
< 360 |
|
Duplex type S |
WRP2-130 |
S |
0~1600 |
φ16 |
Ceramic |
< 150 |
|
Duplex type S |
WRP2-131 |
S |
0~1600 |
φ25 |
Ceramic |
< 360 |
|
Simplex type K |
WRN-133 |
K |
0~1100 |
φ20 |
Ceramic |
< 240 |
|
Duplex type K |
WRN2-133 |
K |
0~1100 |
φ20 |
Ceramic |
< 240 |
|
Simplex type K |
WRN-132 |
K |
0~1100 |
φ16 |
Ceramic |
< 240 |
Extreme Temperature Resistance:
Capable of withstanding continuous exposure to temperatures above 1800°C, depending on material composition.
Chemical Inertness:
Resistant to acids, alkalis, and molten metals, making them ideal for corrosive environments.
Mechanical Strength:
High compressive strength and wear resistance ensure longevity in abrasive conditions.
Thermal Stability:
Minimal thermal expansion reduces the risk of cracking during rapid heating and cooling cycles.
Electrical Insulation:
Non-conductive properties prevent signal interference and enhance safety in high-voltage environments.
Alumina Ceramic Sheaths
Made from high-purity aluminum oxide (Al₂O₃), these sheaths offer exceptional resistance to high temperatures and corrosive environments.
Zirconia Ceramic Sheaths
Composed of zirconium dioxide (ZrO₂), these sheaths are known for their superior toughness and ability to endure rapid temperature changes.
Silicon Carbide Sheaths
Engineered from silicon carbide (SiC), these sheaths combine excellent thermal conductivity with high mechanical strength.
Porcelain Thermocouple Tubes
A cost-effective solution made from vitrified clay-based materials, commonly used in general-purpose temperature monitoring.
Cordierite Thermocouple Sheaths
Manufactured from a magnesium-aluminum silicate compound, cordierite offers excellent thermal cycling stability and reduced brittleness.
Applications of Ceramic Thermocouple Protection Tubes
Metalworking Industry
In metalworking operations such as steelmaking, forging, and casting, temperatures routinely exceed 1500°C. Ceramic thermocouple protection tubes are indispensable in furnaces, ladles, and foundries, where they protect temperature sensors from molten metal, thermal shock, and mechanical abrasion.
Ceramic and Glass Manufacturing
The production of ceramics and glass involves prolonged exposure to extreme heat during kiln firing and glass melting processes, often reaching temperatures between 1600°C and 1800°C. Ceramic protection tubes provide reliable insulation and structural integrity for thermocouples in these environments.
Power Generation
In both fossil fuel and renewable energy plants, ceramic thermocouple tubes are deployed in boilers, gas turbines, and combustion chambers to monitor temperature in real time. These environments expose sensors to high-pressure steam, hot gases, and particulate matter.
Petrochemical Industry
Refineries and petrochemical processing units operate under harsh conditions involving high temperatures, high pressures, and corrosive chemicals such as hydrogen sulfide, sulfuric acid, and hydrocarbons. Ceramic protection tubes, particularly those made from silicon carbide or mullite, offer excellent resistance to chemical attack and thermal stress.
Heat Treatment
Processes like annealing, quenching, tempering, and carburizing require tightly controlled temperature profiles to alter the mechanical properties of metals. Ceramic protection tubes shield thermocouples from reactive furnace atmospheres (e.g., carbon-rich or inert gases) and physical contact with workpieces.
Aerospace Industry
In aerospace engineering, ceramic thermocouples are used to monitor engine combustion chambers, turbine blades, and exhaust systems during testing and operation. These components are subjected to extreme thermal gradients, high-velocity gases, and mechanical vibration.
Material of Ceramic Thermocouple Protection Tubes
Alumina (Al₂O₃)
Offers excellent resistance to oxidation and moderate chemical attack; suitable for temperatures up to 1700°C. Commonly used in general industrial applications.
Silicon Carbide (SiC)
Provides superior thermal conductivity and mechanical strength; ideal for rapid temperature cycling and environments with high thermal shock risk. Withstands temperatures up to 1600°C in oxidizing atmospheres.
Zirconia (ZrO₂)
Known for exceptional resistance to thermal shock and very high melting points (above 2000°C). Often used in extreme-temperature applications such as molten metal handling and aerospace testing.
Cordierite
Exhibits low thermal conductivity and excellent thermal shock resistance, making it suitable for fluctuating temperature environments, though limited to lower temperature ranges (~1300°C).
Dimensions: Custom lengths, outer and inner diameters, wall thicknesses, and tip shapes (e.g., flat, conical, or rounded).
Material Composition: Blends or coatings (e.g., zirconia-toughened alumina) for enhanced durability.
Mounting Options: Threaded ends, flanges, or weld-in bases for secure installation.
Special Features: Multi-layer designs, purge ports, or protective coatings for added resistance to corrosion or erosion.
Install of Ceramic Thermocouple Protection Tubes
Insert the Thermocouple Wire: Gently feed the thermocouple sensor wire into the bore of the ceramic tube. The inner diameter is precision-machined to accommodate standard wire gauges while minimizing air gaps that could affect response time.
Secure in Thermowell or Fitting: Slide the assembled tube into a compatible thermowell or process connection. Many systems use threaded fittings or flanges to hold the assembly securely in place.
Use of Adaptors or Couplings: Transition fittings (e.g., metal-to-ceramic adaptors) allow seamless integration into existing equipment, providing mechanical support and environmental sealing.
Final Securing: Use appropriate clamps or retaining nuts to fix the assembly, ensuring it is stable without applying excessive torque that could crack the ceramic.
FAQ
As one of the leading electronic ceramics manufacturers and suppliers in China, we warmly welcome you to wholesale bulk high-grade electronic ceramics made in China here and from our factory. All customized products are with high quality and competitive price. Contact us for pricelist and free sample.