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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)
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 requirementsA wide choice of standard materials and process connections is available; other versions can be ordered according to specificationDifferent grades of surface finishing are also availableThe thermowell stem shape is steppedThe process connection can be threaded or flanged weld