WIKA Weld-İn Thermowell (TW25)


  • Petrochemical industry, on-/offshore, plant construction
  • For high process loads

Special features

  • Variable welding diameters
  • International standard
  • Possible thermowell forms:
    – Design TW25-A: tapered
    – Design TW25-B: straight
    – Design TW25-C: stepped

Sales Contact (Wika.sales@asyatrafo.com)




Each thermowell/protection tube is an important component of any temperature measurement point. It is used to separate the process from the surrounding area, thus protecting the environment and operating personnel and keeps aggressive media, high pressures and flow rates from the temperature sensor itself and thereby enables the thermometer to be exchanged during operation.

Based on the almost limitless application possibilities, there are a large number of variants, such as thermowell designs or materials. The type of process connection and the basic method of manufacture are important design differentiation criteria. A basic differentiation can be made between threaded and weld-in thermowells/protection tubes, and those with flange connections.

Furthermore, one can differentiate between protection tubes and thermowells. Protection tubes are constructed from a tube, that is closed at the tip by a welded solid tip. Thermowells are manufactured from solid bar stock.

The TW25 series of weld-in thermowells are suitable for use with numerous electrical and mechanical thermometers from WIKA.

Due to the heavy-duty design, these international design thermowells are the first choice for use the chemical and petrochemical industries and in plant construction.