Browse our range of thermowell and thermowell pocket sensors for a range of applications and industries.
What is a Thermowell?
A thermowell is used to protect temperature sensors such as thermocouples, thermistors and thermometers against damage from excessive pressure.
A pocket sensor is a cylindrical fitting with a tube closed at one end and mounted on the wall of the piping or vessel.
What are Thermowell Pockets Used For?
A thermowell pocket is a protective enclosure or tube installed in industrial processes to house temperature sensors, such as thermocouples or resistance temperature detectors (RTDs).
Temperature probe pockets provide a barrier between the sensor and the process fluid, ensuring accurate temperature measurement while protecting the sensor from harsh conditions or corrosive substances.
What is a Temperature Sensor Pocket?
A temperature sensor pocket, also known as a thermowell, is a protective enclosure used in industrial settings to house temperature sensors like thermocouples or resistance temperature detectors (RTDs).
Key Purposes:
Protection: It shields the delicate sensor from harsh process conditions like high pressure, corrosive substances, and extreme temperatures.
Accuracy: It ensures accurate temperature readings by maintaining a stable environment around the sensor.
Maintenance: It allows for easy sensor replacement or calibration without disrupting the process.
Common Applications:
- Chemical processing
- Oil and gas
- Power generation
- Food and beverage
- HVAC systems
Types:
Threaded: Screwed into a process fitting.
Welded: Permanently attached to a pipe or vessel.
Flanged: Bolted to a flange connection.
Materials:
- Stainless steel (most common)
- Brass
- Other alloys depending on the application
Selection Criteria:
- Process temperature and pressure
- Fluid or gas being measured
- Sensor type and size
- Installation requirements
- Material compatibility
Benefits:
- Extends sensor lifespan
- Reduces downtime
- Improves safety
- Enhances measurement accuracy
Custom-Built Thermowell Temperature Sensor Pockets in the UK
At Process Parameters, we offer custom-built, high-quality thermowell pockets to suit your thermocouple or platinum resistance thermometer with a simple design. Choose your pocket diameter, pocket length and thread type and we’ll do the rest.
Our design of temperature sensor pockets is manufactured with 316 stainless steel and suits other temperature sensors such as dial thermometers, rod thermostats and bimetallic gauges.
If you’re not sure what you need for your application, please get in touch and we can help identify your requirements.
Read our in-depth guide about thermowells here.
Thermowells / Pockets
Temperature Probes & Sensors