Reotemp® Lagging Sanitary Tri-Clamp Thermowell (STL)
- Thermowell Series: Lagging Sanitary Tri-Clamp, Series STL
- Provides Sanitary Protection for Threaded Temperature Instruments
- Allows for Easy Removal of Instrument for Calibration or Replacement
- All 316L Stainless Steel with 32Ra Finish
- Designed for use with 1/2″ NPT Threaded Temperature Gauges
Reotemp® Lagging Sanitary Tri-Clamp Thermowell (STL)
Reotemp® sanitary thermowells make it possible to remove an instrument without dropping pressure or losing contents of the process and protect the instrument from getting bent by the process media. Each 316L stainless steel thermowell is die stamped, finished to 32Ra, and has a tri-clamp connection which allows for easy cleaning to prevent contamination of the process. They are used in the dairy, food processing and pharmaceutical industries.
These lagging sanitary thermowells are offered in 316L stainless steel in 1.5", 2", 2.5" and 3" tri-clamp connections with element lengths 6", 9", and 12". If you are looking for additional options, like a different element length, connection size, or material, please reach out to our sales team.
Quick Guide: Standard Thermowells vs. Lagging Thermowells
Standard Thermowells are the most commonly used type. They are directly installed into the process media, offering reliable protection for the temperature sensor against high pressure, corrosive environments, or mechanical forces. These thermowells are straightforward in design, often crafted from stainless steel or other corrosion-resistant materials to ensure longevity in demanding applications.
If you are looking for more in-depth information, read our blog post on understanding the differences between standard and lagging thermowells.
Shop Reotemp® Standard Sanitary Tri-Clamp Thermowells
| SKU | Tri-Clamp Size (P) |
Element Length (A) |
Bore Diameter (B) |
Insertion Length (U) |
Overall Length (L) |
Shank Diameter (Q) |
Lag (T) |
|---|---|---|---|---|---|---|---|
| STL1.5-6U2.5 | 1.5" | 6" | 0.260" | 2.5" | 6.25" | 0.375" | 2" |
| STL1.5-9 | 1.5" | 9" | 0.260" | 4.5" | 9.25" | 0.375" | 3" |
| STL1.5-12 | 1.5" | 12" | 0.260" | 7.5" | 12.25" | 0.375" | 3" |
| STL2-6U2.5 | 2" | 6" | 0.260" | 2.5" | 6.25" | 0.375" | 2" |
| STL2-9 | 2" | 9" | 0.260" | 4.5" | 9.25" | 0.375" | 3" |
| STL2-12 | 2" | 12" | 0.260" | 7.5" | 12.25" | 0.375" | 3" |
| STL2.5-6U2.5 | 2.5" | 6" | 0.260" | 2.5" | 6.25" | 0.375" | 2" |
| STL2.5-9 | 2.5" | 9" | 0.260" | 4.5" | 9.25" | 0.375" | 3" |
| STL2.5-12 | 2.5" | 12" | 0.260" | 7.5" | 12.25" | 0.375" | 3" |
| STL3-6U2.5 | 3" | 6" | 0.260" | 2.5" | 6.25" | 0.375" | 2" |
| STL3-9 | 3" | 9" | 0.260" | 4.5" | 9.25" | 0.375" | 3" |
| STL3-12 | 3" | 12" | 0.260" | 7.5" | 12.25" | 0.375" | 3" |
| STL1.5-6U2.5B3 | 1.5" | 6" | 0.385" | 2.5" | 6.25" | 0.750" | 2" |
| STL1.5-9B3 | 1.5" | 9" | 0.385" | 4.5" | 9.25" | 0.750" | 3" |
| STL1.5-12B3 | 1.5" | 12" | 0.385" | 7.5" | 12.25" | 0.750" | 3" |
| STL2-6U2.5B3 | 2" | 6" | 0.385" | 2.5" | 6.25" | 0.750" | 2" |
| STL2-9B3 | 2" | 9" | 0.385" | 4.5" | 9.25" | 0.750" | 3" |
| STL2-12B3 | 2" | 12" | 0.385" | 7.5" | 12.25" | 0.750" | 3" |
| STL2.5-6U2.5B3 | 2.5" | 6" | 0.385" | 2.5" | 6.25" | 0.750" | 2" |
| STL2.5-9B3 | 2.5" | 9" | 0.385" | 4.5" | 9.25" | 0.750" | 3" |
| STL2.5-12B3 | 2.5" | 12" | 0.385" | 7.5" | 12.25" | 0.750" | 3" |
| STL3-6U2.5B3 | 3" | 6" | 0.385" | 2.5" | 6.25" | 0.750" | 2" |
| STL3-9B3 | 3" | 9" | 0.385" | 4.5" | 9.25" | 0.750" | 3" |
| STL3-12B3 | 3" | 12" | 0.385" | 7.5" | 12.25" | 0.750" | 3" |
Additional information
Line Drawings
| SKU | Description | Line Drawing |
|---|---|---|
| STL1.5-12 | Reotemp® Lagging Sanitary Thermowell, .260″ Bore, 1.5″ Tri-Clamp, 12″ Element Length, STL1.5-12 |
|
| STL1.5-12B3 | Reotemp® Lagging Sanitary Thermowell, .385″ Bore, 1.5″ Tri-Clamp, 12″ Element Length, STL1.5-12B3 |
|
| STL1.5-6U2.5 | Reotemp® Lagging Sanitary Thermowell, .260″ Bore, 1.5″ Tri-Clamp, 6″ Element Length, STL1.5-6U2.5 |
|
| STL1.5-6U2.5B3 | Reotemp® Lagging Sanitary Thermowell, .385″ Bore, 1.5″ Tri-Clamp, 6″ Element Length, STL1.5-6U2.5B3 |
|
| STL1.5-9 | Reotemp® Lagging Sanitary Thermowell, .260″ Bore, 1.5″ Tri-Clamp, 9″ Element Length, STL1.5-9 |
|
| STL1.5-9B3 | Reotemp® Lagging Sanitary Thermowell, .385″ Bore, 1.5″ Tri-Clamp, 9″ Element Length, STL1.5-9B3 |
|
| STL2-12 | Reotemp® Lagging Sanitary Thermowell, .260″ Bore, 2″ Tri-Clamp, 12″ Element Length, STL2-12 |
|
| STL2-12B3 | Reotemp® Lagging Sanitary Thermowell, .385″ Bore, 2″ Tri-Clamp, 12″ Element Length, STL2-12B3 |
|
| STL2-6U2.5 | Reotemp® Lagging Sanitary Thermowell, .260″ Bore, 2″ Tri-Clamp, 6″ Element Length, STL2-6U2.5 |
|
| STL2-6U2.5B3 | Reotemp® Lagging Sanitary Thermowell, .385″ Bore, 2″ Tri-Clamp, 6″ Element Length, STL2-6U2.5B3 |
|
| STL2-9 | Reotemp® Lagging Sanitary Thermowell, .260″ Bore, 2″ Tri-Clamp, 9″ Element Length, STL2-9 |
|
| STL2-9B3 | Reotemp® Lagging Sanitary Thermowell, .385″ Bore, 2″ Tri-Clamp, 9″ Element Length, STL2-9B3 |
|
| STL2.5-12 | Reotemp® Lagging Sanitary Thermowell, .260″ Bore, 2.5″ Tri-Clamp, 12″ Element Length, STL2.5-12 |
|
| STL2.5-12B3 | Reotemp® Lagging Sanitary Thermowell, .385″ Bore, 2.5″ Tri-Clamp, 12″ Element Length, STL2.5-12B3 |
|
| STL2.5-6U2.5 | Reotemp® Lagging Sanitary Thermowell, .260″ Bore, 2.5″ Tri-Clamp, 6″ Element Length, STL2.5-6U2.5 |
|
| STL2.5-6U2.5B3 | Reotemp® Lagging Sanitary Thermowell, .385″ Bore, 2.5″ Tri-Clamp, 6″ Element Length, STL2.5-6U2.5B3 |
|
| STL2.5-9 | Reotemp® Lagging Sanitary Thermowell, .260″ Bore, 2.5″ Tri-Clamp, 9″ Element Length, STL2.5-9 |
|
| STL2.5-9B3 | Reotemp® Lagging Sanitary Thermowell, .385″ Bore, 2.5″ Tri-Clamp, 9″ Element Length, STL2.5-9B3 |
|
| STL3-12 | Reotemp® Lagging Sanitary Thermowell, .260″ Bore, 3″ Tri-Clamp, 12″ Element Length, STL3-12 |
|
| STL3-12B3 | Reotemp® Lagging Sanitary Thermowell, .385″ Bore, 3″ Tri-Clamp, 12″ Element Length, STL3-12B3 |
|
| STL3-6U2.5 | Reotemp® Lagging Sanitary Thermowell, .260″ Bore, 3″ Tri-Clamp, 6″ Element Length, STL3-6U2.5 |
|
| STL3-6U2.5B3 | Reotemp® Lagging Sanitary Thermowell, .385″ Bore, 3″ Tri-Clamp, 6″ Element Length, STL3-6U2.5B3 |
|
| STL3-9 | Reotemp® Lagging Sanitary Thermowell, .260″ Bore, 3″ Tri-Clamp, 9″ Element Length, STL3-9 |
|
| STL3-9B3 | Reotemp® Lagging Sanitary Thermowell, .385″ Bore, 3″ Tri-Clamp, 9″ Element Length, STL3-9B3 |
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