Thermocouples (RTDs) for the chemical industry
Insertion / surface type special thermocouples for ethylene cracking furnace coil outlet temperature (COT), equipped with wear-resistant tip, internal leakage prevention and two-stage sealing structure.
- Original Factory Genuine, Tenfold Compensation for Counterfeits
- Full Machine Warranty, Lifetime Maintenance
- In Stock, Shipped on the Same Day
Thermocouples for the chemical industry are designed for ethylene cracking furnace coil outlet temperature (COT) measurement. The insertion-type product consists of a sheathed thermocouple, a composite wear-resistant head and an internal leakage prevention structure; the measuring end is specially designed for fluid impact to reduce erosion and extend service life. The surface-type product features a welded protection tube, with the outer sheath welded directly to the furnace tube or tube wall surface, avoiding high-velocity erosion and high-temperature medium damage.
| Parameter Name | Technical Specifications |
|---|---|
| Insertion-type COT thermocouple | |
| Measured variable | Ethylene cracking furnace coil outlet temperature (COT) |
| Product composition | Sheathed thermocouple + composite wear-resistant head + internal leakage prevention structure |
| Measuring end design | Specially designed for fluid impact, reducing medium erosion and extending service life |
| Sealing structure | Double ferrule leakage isolation + insulation cotton thermal insulation + two-stage sealing device |
| Functional safety | SIL2 functional safety certification |
| Surface-type COT thermocouple | |
| Protection tube | Welded type, outer sheath welded directly to the furnace tube / tube wall surface |
| Sheath material | Alloy resistant to hydrogen and sulphur corrosion, good sulphidation resistance |
| Reference junction | Extended lengthened structure, avoiding on-site high-temperature zones |
| Temperature sensing element | High-temperature alloy tube formed in one piece, good density, bendable |
| Complete model code | See the PDF section of this product documentation (Section 1.5) for details |
- High-temperature alloy tube formed in one piece, good density, bendable
- Measuring end specially designed for fluid impact, reducing medium erosion and extending service life
- Uniform flow field at the hot end, excellent temperature sensing and fast thermal response
- Double ferrule leakage isolation, insulation cotton thermal insulation and two-stage sealing improve operational safety
- Extended reference end avoids on-site high-temperature zones and high-temperature interference
- Thermocouple with SIL2 functional safety certification
Ethylene cracking furnace outlet temperature (COT) control
Insertion thermocouple accurately measures cracking furnace outlet temperature, ensuring control accuracy of cracking depth and recovery efficiency.
Furnace tube wall surface temperature measurement
Surface thermocouple welded to the outer wall of the furnace tube, avoiding damage to the temperature sensing element from high-velocity erosion and high-temperature media.
Need selection advice or bulk quotation?
Send us the working condition parameters (signal type, medium, range, pressure, temperature, connection method), and our engineers will provide a selection scheme and quotation within 1 working day.
- Phone consultation +86-21-66020232
- Email inquiry web@qishan-sh.com
