Description
Thermowell with flange WIKA
Each thermowell 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, and those with flange connections.
Furthermore, one can differentiate between fabricated and solid-machined thermowells.
Fabricated thermowells are constructed from a tube, that is closed at the tip by a welded solid tip. Solid-machined thermowells are manufactured from barstock.
The TW10 series of solid-machined thermowells with flange connection 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.
Thermowell material
- Stainless steel 304/304L, 316/316L, 1.4571, 1.4404, A105, special materials
Flange
- Blind flange per ASME, EN 1092-1, DIN 2527
Connection to thermometer
- ½ NPT, G ½ (female) “Quill Tip” version with weld-in connection ½” and ¾”
Bore size
- Ø 6.6 mm, Ø 8.5 mm
Insertion length U
- To customer specification
Connection length H
- 57 and 83 mm (standard)
- Others on request
Coating
Hardfacing for abrasive process loads with Stellite® 6:
- High Velocity Oxide Fuel (HVOF): Thickness 0.5 mm
- Plasma Transfer Arc (PTA): Thickness 1.6 mm (standard) up to 3.2 mm
- Laser cladding: Thickness 1.6 mm (standard) higher thickness on request
- Air Plasma Spraying (APS): Thickness max. 1.6 mm Corrosion protection for high chemical loads:
- PFA: Thickness min. 0.4 mm (standard) or min. 0.6 mm (special design)
- ECTFE (Halar®): Thickness min. 0.6 mm Other resistant coatings on request
Max. process temperature, process pressure
Depending on
- Thermowell design
- Dimensions
- Material
- Coating
- Flange pressure rating
Process conditions
- Flow rate
- Density of medium
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