Product Summary

Thermowells play a crucial role in protecting and extending the life of temperature sensors such as thermocouples, thermistors, and bimetallic thermometers from damage caused by excessive pressure, fluid velocity, and corrosion. Additionally, they allow for the replacement of sensors without the need to drain the system, reducing the risk of contamination.

Thermowells designed for high-pressure applications are machined from metal bars to ensure their integrity. Smaller thermowells used in low-pressure environments can be constructed from tubes, with one end closed by welding.

Main Applications:

  • Mining and Energy
  • Water Treatment and Sanitation
  • Oil and Gas
  • Oil Refineries
  • Chemical and Pharmaceutical Industry
  • Food and Beverage Industry
  • Pulp and Paper
  • Steel Industry

Connection Types:

Thermowells can be connected to temperature sensors such as RTDs, thermistors, or thermocouples through different types of connections. Some of the most common ones include threaded connections, welded connections, socket weld, O-Ring, and flanges. ANSI B16.5 flanged thermowells have a double-welded construction to seal both internally and externally, preventing the entry of corrosive substances into the recesses.

Insertion Length:

Insertion length refers to the distance between the connection point of the thermowell and its tip. For maximum accuracy, the insertion length should allow the temperature-sensitive portion of the sensor to extend fully into the medium to be measured. In liquids, the device should be immersed in a length equal to that of the temperature-sensitive portion plus a minimum of one inch. For gases or air, the sensor should be submerged for the length of the temperature-sensitive portion plus an additional three inches. The ideal insertion length varies with the type of sensor used.

Available Materials:

  • Carbon Steel
  • Stainless Steel 316L/304L/317L/347
  • Alloy Steel A203 Gr.E/A387 Gr.5/A387 Gr.11
  • Other materials available upon request

Available Diameters:

  • Range from ½" to 72"
  • Custom diameters available upon request

Pressure Classes:

  • Suitable for a wide pressure range, ranging from 150# to 2500#

Sealing Face Types:

  • Raised Face (RF)
  • Ring Type Joint (RTJ)
  • Flat Face (FF)

Connection Methods:

  • Threaded connections
  • Welded connections
  • Socket weld
  • O-Ring
  • ANSI B16.5 Flange

Recommended Insertion Length:

  • Variable according to the type of sensor used
  • Adaptable for precise measurements in liquids and gases

Specific Applications:

  • Designed for diaphragm seal applications with flanged connection and diaphragm facing the process
  • Ideal for cleaning process lines and removing residue deposits
  • Machined from metal bars for high-pressure applications
  • Double-welded construction to ensure sealing in corrosive environments

Variety of Special Materials

  • Available for specific applications
  • Material selection based on chemical substance, temperature, and flow

Easy Sensor Replacement:

  • Allows sensor replacement without draining the system
  • Reduces the likelihood of contamination

Customized Selection

  • Technical specifications can be customized to meet the specific needs of your application, ensuring desired performance and reliability.


Thermowells play a fundamental role in accurately measuring temperature in various industrial applications. Their ability to protect temperature sensors and ensure measurement reliability is crucial for process control and operational safety. By choosing high-quality thermowells with suitable specifications, you are investing in the precision and reliability of your measurement systems.

Política de Uso de Cookies

Este site utiliza cookies para uma melhor experiência de navegação.