Barstock thermowell for safe and reliable temperature measurements in heavy duty industrial applications
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Measuring principle
Bar stock Thermowell
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Characteristic / Application
metric style
compliant according to ASME, DIN or NAMUR standard
universal use -
Head connection
internal thread:
M14x1,5
M18x1,5
M20x1,5
M27x2
1/2" NPT
1/2" NPSM
1/2"NPSC
G1/2"
G3/4"
M24x1,5 sliding -
Maximum standard immersion length
1500 mm
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Process connection
To be
threaded
weld in
with flange according to ASME, EN or ISO -
Thermowell root diameter
9…50 mm
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Medium contact material
Wide selection of materials including:
316
316L
316Ti
347
310
Alloy600
AlloyC276
10CrMo9-10
13CrMo4-5
16Mo3
A105
C22.8
Duplex
Titan Gr.2
316+316L dual rated
P355NH -
Wetted part finishing (Ra)
< 0.8 μm (31.50 μin)
< 1.6 μm (63.00 μin)
DIN Standard -
Tip shape
Straight
Tappered
Stepped
partly tappered -
Temperature range
-200…1100 °C (-328...2.012 °F)
Depending on Configuration -
Max. process pressure (static)
500 bar (7252 psi)
Depending on Configuration -
Max. process pressure at 400 °C
depends on process connection and material
The TT151 thermowell is designed as per DIN 43772, ASME B40.9, NAMUR NE 170 norms or as individual configuration. The robust protection tube ensures safe and accurate measurements in process lines or vessels, shielding temperature sensors from harsh environments. It is drilled and machined from solid bar stock with root diameters from 9 to 50 mm. Tips are available in straight, tapered or stepped form. Process connections include a selection of standard flanges, threads or weld-in versions.
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Protects the temperature sensor against physical and chemical stress
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High robustness for challenging process conditions
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Pressure range: up to 500 bar (7252 psi)
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For use in pipes, vessels or tanks
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Easier maintenance and recalibration of the measuring point (sensor can be replaced without interrupting the process)
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TT151 is an industry standard thermowell manufactured from round barstock
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Modular configuration according to DIN 43772, ASME B40.9, NAMUR NE 170 or more flexible as universal version
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Extension, immersion length and total length can be chosen according to process requirements
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Wide range of dimensions, materials and process connections available
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iTHERM TwistWell in helical design - reducing vortex induced vibrations in high-velocity applications