
L Type MI Thermocouple with Process Connection
L Type MI Thermocouple with Process Connection is an industrial temperature sensor designed for accurate temperature measurement in pipes, vessels, furnaces, boilers and process equipment. Its L-shaped design makes installation easier in limited space, while mineral insulated construction provides durability, vibration resistance and reliable high-temperature performance.
Customize
Share :
A. Product Overview
L Type MI Thermocouple with Process Connection is a mineral insulated temperature sensor used in industrial process applications where accurate and stable temperature measurement is required.
The L-shaped design allows easy installation in pipes, tanks, vessels, heating chambers and other process equipment. It is especially useful where straight thermocouples are difficult to install due to space limitations or installation angle requirements.
This thermocouple is available in J type and K type simplex configuration. It can be used for temperature measurement up to 1200 degree Celsius, depending on the sheath material, cable, fitting and application condition.
The sensor is available with sheath sizes such as 3 mm, 4.5 mm, 6 mm and 8 mm. Sheath material options include SS310, SS316 and Inconel. It can be supplied with different threaded process connections such as 1/8 inch, 1/4 inch, 3/8 inch, 1/2 inch and 3/4 inch in BSP and NPT thread types.
B. Working Principle
An L Type MI Thermocouple works on the thermoelectric principle. It contains two dissimilar metal wires joined together at the measuring tip. When this tip is exposed to heat, it generates a small voltage signal according to the temperature.
This signal is sent to a temperature indicator, PID controller, PLC or control panel. The instrument converts the voltage signal into a temperature reading.
The mineral insulated construction uses compacted magnesium oxide insulation between the thermocouple wires and the outer metal sheath. This helps provide electrical insulation, fast heat transfer, mechanical strength and better resistance against vibration and high temperature.
The process connection helps mount the thermocouple securely into the pipe, vessel or machine so that the sensing tip can measure the actual process temperature.
C. Why It Is Used
L Type MI Thermocouple with Process Connection is used because it provides reliable temperature measurement in demanding industrial environments.
It is useful for:
Accurate temperature measurement in pipes and vessels
Easy installation where space is limited
High-temperature applications up to 1200 degree Celsius
Stable performance in vibration-prone areas
Strong protection through mineral insulated construction
Secure mounting through threaded process connection
Process control in heating, cooling and manufacturing systems
Temperature feedback to controllers, indicators and PLC systems
Better safety and process reliability in industrial plants
D. Suitable Buyers
This product is suitable for:
Chemical plants
Pharmaceutical industries
Boiler manufacturers
Furnace manufacturers
Heat treatment plants
Plastic machinery manufacturers
Process equipment manufacturers
Food processing plants
Oil and gas industries
Power plants
OEM machine builders
Panel manufacturers
Automation system integrators
Maintenance engineers
Instrumentation engineers
Temperature sensor dealers and distributors
FAQ
1. What is an L Type MI Thermocouple with Process Connection?
An L Type MI Thermocouple with Process Connection is a mineral insulated temperature sensor with an L-shaped design and threaded fitting for installation in pipes, vessels and industrial process equipment.
2. Why is it called L Type Thermocouple?
It is called L Type because the sensor has a bent or right-angle shape. This design makes it easier to install in applications where straight sensors are difficult to fit.
3. What does MI mean in thermocouple?
MI means Mineral Insulated. In this construction, the thermocouple wires are insulated with compacted magnesium oxide powder inside a metal sheath. This gives strength, insulation and high-temperature stability.
4. Where is this thermocouple used?
It is used in pipes, vessels, boilers, furnaces, process tanks, heating systems, machinery and industrial plants where temperature measurement is required.
5. Which thermocouple types are available?
This thermocouple is commonly available in J type and K type simplex configuration.
6. What is the temperature range?
The temperature range can be up to 1200 degree Celsius, depending on the thermocouple type, sheath material, cable, fitting and process condition.
7. Which sheath materials are available?
Common sheath materials include SS310, SS316 and Inconel. The selection depends on temperature, corrosion, pressure and process environment.
8. What sheath sizes are available?
Common sheath sizes include 3 mm, 4.5 mm, 6 mm and 8 mm.
9. What thread connections are available?
Thread connection options can include 1/8 inch, 1/4 inch, 3/8 inch, 1/2 inch and 3/4 inch in BSP and NPT thread types.
10. What termination options are available?
Termination options can include round pin connector and flat pin connector, depending on the application and instrument connection requirement.
11. Why is process connection important?
The process connection helps mount the thermocouple firmly into the process line or vessel. It ensures proper sensor positioning and helps achieve accurate temperature measurement.
12. Can this thermocouple be customized?
Yes, it can be customized based on thermocouple type, sheath diameter, sheath material, insertion length, thread size, bend length, cable length and connector type.




