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WIKA TW15
WIKA TW15 – (Threaded thermowell) WIKA/Germany
Applications
- Chemical industry, process technology, equipment manufacturing
- For high chemical stress
- For high process loads
Special features
- International standard
- Possible thermowell designs: tapered, straight or stepped
Description
Each thermowell/protection tube is an important component of any temperature measuring location. 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 probe 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 TW15 series of threaded 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 in the chemical and petrochemical industries and in plant construction.
WIKA TW15
| Versions | ■ Design TW15-H: hexagon (continuous)
■ Design TW15-R: spanner flats ■ Design TW15-M: round with hexagon Option: ■ Injection quills version |
| Thermowell materials | ■ Stainless steel 316/316L
■ Stainless steel 304/304L ■ A105 ■ Stainless steel 1.4571 ■ Alloy C4 ■ Alloy C276 ■ Alloy 400 ■ Titan Grade 2 ■ Materials per ASTM specifications Other materials on request |
| Process connection | ■ ½ NPT male
■ ¾ NPT male ■ 1 NPT male Other threads on request |
| Connecton to thermometer | ■ ½ NPT female
■ G ½ female ■ “Quill Tip” version with weld-in connection ½” and ¾” Other threads on request |
| Bore size | ■ Ø 6.6 mm [0.260 in]
■ Ø 8.5 mm [0.355 in] |
| Insertion length U | To customer specification |
| Connection length H | To customer specification (min. 45 mm) |
| Max. process temperature, process pressure | Depending on:
■ Thermowell design – Dimensions – Material ■ Process conditions – Flow rate – Density of medium |
| Wake frequency calculation (option) | Per ASME PTC 19.3 TW-2016 recommended in critical applications as a WIKA
engineering service For further information see Technical information IN 00.15 “Wake frequency calculation”. |
