Tubo per termocoppia in nitruro di boro
Ceramic thermocouple tubes are commonly used as protective materials for thermocouple wires in high-temperature sensors.This BN thermocouple protection tube features a dual-bore design, ideal for accommodating the positive and negative thermocouple wires.
Type B thermocouples are among the most suitable for use with BN tubes, especially for high-temperature measurement in vacuum or inert atmospheres. Type R and S thermocouples are also compatible, providing stable performance under extreme heat conditions.

Two-hole BN Thermocouple Protection Tube
| Size | Unità | Valore |
| Outer Diameter | mm | 3.8 |
| Bore Diameter | mm | 1 |
| Center Distance | mm | 1.7 |
| Length | mm | 65 |
| Operating Temperature(in vacuum) | ℃ | 2000 |
| Ra | μm | 3.2 |
Applicable Thermocouple Types for Bn Thermocouple tube
| Thermocouple Type | Positive | Negative | Applicable |
| K | NiCr | NiSi | No |
| S | PtRh10 | Pt | Yes |
| B | PtRh30 | PtRh6 | Yes |
| R | PtRh13 | Pt | Yes |
Ceramic Thermocouple Supplier from China
Available in a wide range of sizes, hole configurations (single-hole, two-hole, multi-bore), and can be tailored to fit various thermocouple types (S, B, R, etc.).
Whether you need small-scale prototypes or high-volume production, we will provide you reliable quality and fast lead time.
Interested in our ceramic thermocouple tubes?
Feel free to contact us for more details or a custom quote. We’re here to support your project with professional solutions.