High-Pressure Thermocouples
High-pressure thermocouples measure process temperature where the sensor assembly must also withstand demanding pressure, sealing and mechanical conditions. The construction needs to suit the process medium, operating temperature and pressure, installation geometry and required response.
TE Instrumentation designs and manufactures high-pressure thermocouples for applications including LDPE and polymerisation processes, chemical and petrochemical plants, energy systems and other critical process installations. We support both new measurement points and replacement of existing assemblies.
Typical applications
- High-pressure chemical and petrochemical processes.
- LDPE and polymerisation installations.
- Process equipment with critical pressure and temperature conditions.
- Replacement sensors manufactured from an existing type number, drawing or sample.
Engineering and selection
Useful specification inputs include the maximum operating pressure and temperature, process medium, connection and sealing arrangement, insertion length, thermocouple type, sheath and process materials, termination and any required certification. Final suitability depends on review of the complete sensor construction and installation.
Manufacture and replacement
Where appropriate for the selected construction, high-pressure thermocouple joints can be produced using a controlled vacuum-brazing process. Gold-based brazing alloys may be selected for their strength and bonding characteristics. The material and joining method are chosen against the process requirements rather than applied as a universal specification.
For replacement work, send the existing type number, drawing, nameplate details or a clear photograph. For a new application, provide the process and connection data so that the assembly can be reviewed.
View the industrial temperature-sensor range or discuss your high-pressure application.
