Protective sheaths for thermocouples in reaction vessels, ensuring accurate temperature measurement while shielding sensors from corrosive or high-pressure process media.
| Parameter | Typical range | Notes & selection driver |
|---|---|---|
| Diameter | 6-25 mm | |
| Response Time | 2-60 seconds (depends on material/wall thickness) | |
| Connection Type | Threaded (NPT, BSP), Flanged, Weld-in | |
| Pressure Rating | Up to 400 bar | |
| Insertion Length | 150-2000 mm | |
| Temperature Range | -200°C to 1200°C | |
| Tip Configuration | Closed-end, tapered, stepped |
Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.
This component is used in the following industrial products
The primary containment vessel where molten metal and desulfurizing agents interact to remove sulfur impurities.
A reactor where ammonia is catalytically oxidized with air to produce nitrogen monoxide, the primary reaction step in nitric acid production.
The main structural component of a die head that houses and supports all internal die components.
A practical evidence checklist for RFQ preparation and supplier evaluation.
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Manufacturer profiles associated with Thermocouple Wells.
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Consider process temperature, pressure, chemical composition (especially chlorides, acids, alkalis), and mechanical stress. Common choices: 316 stainless steel for general use, Hastelloy for chlorides, Inconel for high temperatures, and tantalum for strong acids. Always verify compatibility with process media through corrosion charts.
Common failures include corrosion (chemical attack), erosion (high-velocity fluids), thermal fatigue (rapid temperature cycling), vibration-induced cracking, and improper installation. Material mismatch with process conditions is the primary cause of premature failure.
Insertion length must ensure the thermocouple tip reaches the process flow for representative measurement. Too short: measures wall temperature. Too long: increases vibration risk. Rule: insert at least 10x the well diameter into the process stream, with tip positioned in turbulent flow region.
Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.