Threaded Assembly Thermocouple
Choosing between an assembly and sheathed thermocouple? See our Sheathed vs Assembly Thermocouple guide to compare construction, installation, response time, protection, and typical industrial applications.
Threaded Assembly Thermocouple Features
- Fixed threaded assembly: Provides secure and vibration-resistant installation.
- Fixed insertion depth: Prevents probe movement during operation.
- Industrial mounting: Suitable for pipelines, furnaces, ovens, vessels, and machinery.
- Sheathed probe: Provides mechanical strength and reliable temperature measurement.
- OEM flexibility: Custom probe length, thread, connector, and L-type configuration are available.
Threaded Assembly Thermocouple Configuration
| Configuration | Description | Typical Use |
|---|---|---|
| Fixed Thread Mount | Probe and threaded base are fixed together | Pipelines, furnaces, ovens, industrial equipment |
| Straight Probe | Straight sheathed probe for direct insertion | General industrial temperature measurement |
| L-Type Probe | 90° right-angle probe available by custom order | Limited installation space |
Thermocouple Type Selection
For help comparing different thermocouple types, see our Thermocouple Types & Selection Guide.
For reference on thermocouple EMF specifications and tolerances, see the IEC 60584-1 thermocouple standard.
| Type | Temperature Range | Typical Applications |
|---|---|---|
| Type K | -200°C to 1260°C | Furnaces, machinery, general industrial measurement |
| Type J | -40°C to 750°C | Machinery, ovens, plastic processing |
| Type T | -200°C to 350°C | Low-temperature measurement |
| Type E | -200°C to 800°C | Testing and laboratory equipment |
| Type N | -200°C to 1300°C | High-temperature industrial equipment |
Actual operating temperature depends on thermocouple type, sheath material, probe diameter, atmosphere, installation conditions, and required service life. S/R/B types are available by custom order.
Threaded Assembly Thermocouple Specifications
| Item | Available Options |
|---|---|
| Probe Diameter | Φ3, Φ4, Φ5, Φ6, Φ8 mm |
| Probe Length | 50–500 mm; custom lengths available |
| Thread | M12×1.5, M16×1.5, G1/4″, G1/2″; NPT optional |
| Mounting | Fixed threaded assembly mounting |
| Sheath | SS304, SS316, Inconel 600 |
| Lead Length | 1000 mm standard; custom length available |
Stock Threaded Assembly Thermocouple Sizes
| Probe Diameter | Probe Insert Length | Standard Thread | Sheath Material |
|---|---|---|---|
| Φ3 mm | 50–300 mm | M12×1.5 / G1/4″ | SS304 / SS316 |
| Φ4 mm | 50–400 mm | M12×1.5 / G1/4″ / G1/2″ | SS304 / SS316 / Inconel 600 |
| Φ5 mm | 50–400 mm | M12×1.5 / G1/4″ / G1/2″ | SS304 / SS316 / Inconel 600 |
| Φ6 mm | 50–500 mm | M16×1.5 / G1/2″ | SS304 / SS316 / Inconel 600 |
| Φ8 mm | 100–500 mm | M16×1.5 / G1/2″ | SS304 / SS316 / Inconel 600 |
NPT threads are available. Insert length within the stock range can be adjusted. Lengths outside the stock range are custom-made. The standard threaded assembly fitting is rated up to 500°C. High-temperature alloy fittings are available for higher-temperature applications.
Threaded Assembly Thermocouple Connection Options
| Item | Options |
|---|---|
| Connection | Flying leads, Mini-plug, standard thermocouple connector |
| Junction | Grounded standard, ungrounded optional |
| Accuracy | Class 2 standard; Class 1 optional according to IEC 60584-1 |
| Probe Shape | Straight standard; L-type 90° custom |
Threaded Assembly Thermocouple Applications
- Boilers and heating furnaces
- Pipeline temperature measurement
- Industrial ovens
- Reaction kettles and vessels
- Industrial machinery
- Fluid medium temperature monitoring
Fixed vs Adjustable Threaded Thermocouple
This Threaded Assembly Thermocouple uses a fixed insertion depth and is suitable when the installation position is predetermined and stable.
For applications requiring adjustable probe insertion depth, the Threaded Compression Fitting Thermocouple provides adjustable probe positioning before the compression fitting is tightened.
Related Assembly Thermocouples
This product is part of the Assembly Thermocouples series. Other assembly configurations are available for different mounting, protection, and process requirements.
- Industrial Thermocouples – Main Thermocouple product series
- Sheathed Thermocouple – Mineral-insulated sheathed thermocouple series
- Flange Mounted Assembly Thermocouple – Flange-mounted installation
- Explosion-Proof Assembly Thermocouple – Hazardous-area applications
- Wear-Resistant Assembly Thermocouple – High-abrasion applications
- Platinum-Rhodium Assembly Thermocouple – High-temperature applications
- Waterproof Anti-Corrosion Assembly Thermocouple – Moisture and corrosive environments
Thermocouple Applications
Threaded assembly thermocouples are suitable for industrial temperature measurement in pipelines, vessels, furnaces, ovens, boilers, reaction vessels, and other equipment where a fixed threaded installation is required.
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