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Measuring principle
Bar stock Thermowell
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Characteristic / Application
metric style
weld-in process connections
round extension -
Head connection
internal thread:
1/2″ NPT
1/2″ NPSM
G1/2″ -
Maximum standard immersion length
1000 mm (39,37″)
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Max. immersion length on request
5.000 mm (196,85″)
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Process connection
to weld-in
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Thermowell root diameter
20 mm (0,79″)
25,4 mm (1″) -
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
conical
conical 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.
TA571 is designed for use with resistance and thermocouple thermometers mainly in heavy duty applications.
Benefits
The extension, the immersion and the tapering lengths as well as the bar dimensions can be chosen according to process requirementsA wide choice of standard materials is available; other versions can be ordered according to specificationDifferent grades of surface finishing are also availableThe process connection is welded. The thermowell stem shape can be straight with a conical tip shape