Thermowall
Complete Introduction to Thermowalls | Materials, Applications, Characteristics, and Selection Guide
What is a Thermowall?
Protection tubes are common and important accessories in temperature measurement systems. They are mainly used to protect sensing elements such as thermocouples and platinum resistance temperature detectors (RTDs) from direct contact with high temperatures, corrosive media, or mechanical shocks, thereby extending the service life of the sensors and improving the stability and safety of the measurements.
Different Thermowalls can be used in different application environments to meet the requirements of high temperature resistance, corrosion resistance and wear resistance.
Main characteristics of Thermowall
01.Excellent high-temperature resistance
The Thermowall can withstand high-temperature environments and is suitable for industrial furnaces, heat treatment equipment and various high-temperature processes.
02.Protect the sensing element
It effectively isolates the sensor from the external environment, reducing damage caused by wear, impact, or chemical corrosion.
03.Extend equipment lifespan
Thermowalls can reduce the frequency of sensor replacements and lower equipment maintenance costs.
04.Multiple materials available
Materials such as stainless steel, ceramic, quartz, and heat-resistant alloys can be selected according to different application requirements.
Common Thermowall materials
Depending on the usage environment, Thermowalls of different materials can be selected, for example:
- 304 Stainless Steel
- 316 Stainless Steel
- Inconel heat-resistant alloy
- Alumina ceramics
- Quartz tube
- Silicon carbide Thermowall
Each material has different heat resistance, corrosion resistance and mechanical strength, and can be selected according to actual needs.
Applications of Thermowalls
Thermowalls are widely used in various industrial temperature measurement equipment, including:
- Industrial furnace
- Heat treatment equipment
- Boiler System
- Plastic machinery
- Food processing equipment
- Semiconductor devices
- Chemical equipment
- Steel manufacturing process
- Ceramic firing equipment
How to choose a Thermowall?
When selecting Thermowalls, the following factors can be considered:
- Operating temperature
- Installation method
- Outer diameter and length of the protective tube
- Work pressure
- Corrosive environment
- Does it require wear resistance
- Matching thermocouple or RTD specifications
Choosing the right Thermowall can improve measurement accuracy and extend the overall service life of the equipment.
Frequently Asked Questions (FAQ)
Can the Thermowall be reused?
If there are no cracks, deformations, or corrosion on the exterior, it can continue to be used after inspection and confirmation; if there is damage, it is recommended to replace it immediately.
Is it absolutely necessary to use a Thermowall?
In high-temperature, high-pressure, or corrosive environments, it is recommended to use a Thermowall to protect the sensing element and improve measurement reliability.
How to choose the material for the Thermowall?
The most suitable material should be selected based on a comprehensive evaluation of factors such as operating temperature, medium properties, corrosion resistance requirements, and mechanical strength.
Professional supplier of Thermowall
Thermowalls effectively protect temperature sensing elements, improve measurement stability, and extend equipment life. Whether standard or special sizes are available, suitable materials and specifications can be selected according to actual needs to meet various industrial temperature measurement applications.
Thermowalls for temperature sensors are available in various materials, lengths, and styles to suit different environments. Please contact us for more information.
Thermowall-metal material
Screw-in internal and external threaded Thermowall
Model: WL-01
- Material: SUS304 / SUS316 / INCO600
- Temperature range: 0 ~ 1200 °C
- Specifications: Can be customized according to customer requirements
- Can be used with a temperature sensor and a bimetallic thermometer
Screw-in internal threaded Thermowall
Model: WL-02
- Material: SUS304 / SUS316 / INCO600
- Temperature range: 0 ~ 1200 °C
- Specifications: Can be customized according to customer requirements
- Can be used with a temperature sensor and a bimetallic thermometer
Flange-type Thermowall
Model: WL-03
- Material: SUS304 / SUS316 / INCO600
- Temperature range: 0 ~ 1200 °C
- Flanged: 1/2" 10K ~ 2" 10K
- Specifications: Can be customized according to customer requirements
- Can be used with a temperature sensor and a bimetallic thermometer
Thermowall-non-metallic material
Silicon carbide tube
Model: WL-04
- Material: SiC
- Maximum temperature: 1600 °C
- Specifications: Can be customized according to customer requirements
- Excellent corrosion resistance and heat shock resistance
Aluminum oxide tube
Model: WL-05
- Material: Ceramic
- Maximum temperature: 1800 °C
- Specifications: Can be customized according to customer requirements
- High airtightness and corrosion resistance
Absolute Fate Obstacle
Model: WL-06
- Material: Ceramic
- Maximum temperature: 1800 °C
- Specifications: Can be customized according to customer requirements


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