
Specs at a glance
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Max. process pressure (static)
500 bar (7252 psi)
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Maximum standard immersion length
900 mm (35,43")
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Max. immersion length on request
5.000 mm (196,85")
Field of application
Due to the challenging process conditions by heavy duty applications the load capacity of a thermowell must be calculated exactly. Dye penetration tests, ultrasound test, helium leakage test, pressure endurance test as well as various, non-destructive material tests prove the quality of materials and processing.
TA556 is designed for use with resistance and thermocouple thermometers mainly in heavy duty applications.
Benefits
The extension and the immersion lengths as well as the bar dimensions can be chosen according to process requirements
A wide choice of standard materials and process connections is available; other versions can be ordered according to specification
Different grades of surface finishing are also available
The thermowell stem shape is stepped
The process connection can be threaded or flanged weld
Extended selection
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High-end products
- Highly functional and convenient
Technical excellence
Simplicity

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Standard products
- Reliable, robust and low-maintenance
Technical excellence
Simplicity
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Specialized products
- Designed for demanding applications
Technical excellence
Simplicity
Variable
FLEX selections | Technical excellence | Simplicity |
---|---|---|
Fundamental selection Meet your basic measurement needs |
Technical excellence
|
Simplicity
|
Lean selection Handle your core processes easily |
Technical excellence
|
Simplicity
|
Extended selection Optimize your processes with innovative technologies |
Technical excellence
|
Simplicity
|
Xpert selection Master your most challenging applications |
Technical excellence
|
Simplicity
Variable |
Success stories
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Measuring principle
Bar stock Thermowell
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Characteristic / Application
metric style
various process connections
round extension -
Head connection
internal thread:
3/4" NPT -
Maximum standard immersion length
900 mm (35,43")
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Max. immersion length on request
5.000 mm (196,85")
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Process connection
thread:
1" NPT
flange:
ASME 1" 300 RF (B16.5)
ASME 1" 600 RF (B16.5)
ASME 1 1/2" 150 RF (B16.5)
ASME 1 1/2" 300 RF (B16.5)
ASME 1 1/2" 600 RF (B16.5)
ASME 1 1/2" 600 RTJ (B16.5)
ASME 2" 300 RF (B16.5)
ASME 2" 600 RF (B16.5)
ASME 2" 300 RTJ (B16.5)
ASME 2" 600 RTJ (B16.5) -
Thermowell root diameter
25 mm (0,98")
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Medium contact material
1.4401 (316)
1.4404 (316L)
1.4571 (316Ti) -
Wetted part finishing (Ra)
< 0.8 μm (31.50 μin)
< 1.6 μm (63.00 μin) -
Tip shape
straight
tapered -
Temperature range
-200...700 °C (-328...1.292 °F)
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Max. process pressure (static)
500 bar (7252 psi)
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Max. process pressure at 400 °C
300 bar (4351 psi)
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Technical Information (TI)
Technical Information
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Technical Information (TI)
English version - 09/2005Omnigrad TA series
Industrial protecting tubesEN 26/09/2005Language:
English
Version:
26/09/2005
File size:
127.9 KB
File name:
TI138ten.pdf
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Technical Information (TI)
Technical information TA556
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Technical Information (TI)
English version - 05/2001Industrial protecting tube
omnigrad TA556
Heavy duty - General purpose
From round bar stock - Ø 35 mm
1" NPT threaded or flanged weld type
Also ENI BAR 3 & BAR 4EN 01/05/2001Language:
English
Version:
01/05/2001
File size:
96.9 KB
File name:
TI155ten_0501.pdf
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Operating Instruction (BA)
Thermowells
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Operating Instruction (BA)
English version - 12/2016Operating instructions for thermowells for EAC approval
EN 01/12/2016Language:
English
Version:
01/12/2016
File size:
1.3 MB
File name:
BA01469TEN_0116.pdf
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Special Documentation (SD)
Device viewer
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Special Documentation (SD)
English version - 07/2021Technical documentation in other languages
Language:
English
Version:
14/07/2021
File size:
478.5 KB
File name:
SD02429R09EN_0121.pdf
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Fields of Activities (FA)
Temperaturmesstechnik
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Fields of Activities (FA)
German version - 02/2025Thermometer und Transmitter für die Prozessindustrie
Language:
German
Version:
04/02/2025
File size:
18.9 MB
File name:
FA00006Tde.pdf
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Fields of Activities (FA)
Temperature measurement
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Fields of Activities (FA)
English version - 02/2025Thermometers and transmitters for the process industry
Language:
English
Version:
04/02/2025
File size:
19.1 MB
File name:
FA00006Ten_2325_interaktiv_verb.pdf
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Fields of Activities (FA)
Misura della temperatura
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Fields of Activities (FA)
Italian version - 07/2024Misura della temperatura
Termometri e trasmettitori per l'industria di processoLanguage:
Italian
Version:
09/07/2024
File size:
20.3 MB
File name:
FA00006Tit_2223.pdf
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-
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Fields of Activities (FA)
Misura della temperatura
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Fields of Activities (FA)
Italian version - 02/2020Termometri e trasmettitori per l'industria di processo
Language:
Italian
Version:
17/02/2020
File size:
30.6 MB
File name:
FA00006TIT_2020.pdf
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-
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Fields of Activities (FA)
Catálogo medición temperatura
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Fields of Activities (FA)
Spanish version - 04/2018Termómetros y transmisores para la industria de proceso
Language:
Spanish
Version:
20/04/2018
File size:
5.5 MB
File name:
FA00006Tes_Catalogo Temperatura_1818.pdf
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Fields of Activities (FA)
温度計
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Fields of Activities (FA)
Japanese version - 02/2020プロセス産業向けの温度計
および伝送器Language:
Japanese
Version:
17/02/2020
File size:
38.9 MB
File name:
FA00006TJA_2020.pdf
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