Cost-Effective Temperature Measurement for Fixed Installations
Boiler walls, large reactors, and steam pipelines need reliable temperature monitoring. Flexibility is not always required in these fixed measurement points. What engineers often prefer is a durable, easy-to-maintain, and budget-friendly solution. Anhui Tiankang's assembled thermocouples and assembled RTDs meet these exact needs with a four-part modular design. The structure includes the sensing element, metal protection tube, mounting fixture, and junction box.
When the sensing element reaches the end of its service life, maintenance becomes simple. There is no need to remove the protection tube or shut down the system for pressure relief. You just replace the internal element. Each maintenance task takes less than 30 minutes. This design saves significant time and money over the lifetime of the equipment.
Assembled thermocouples and assembled RTDs use rigid straight protection tubes. The standard diameter is φ16mm. These tubes cannot bend, but they offer much higher mechanical strength. Customers can choose from multiple tube materials. Options include 304, 316L, high-temperature 310S, GH3030, and alumina ceramic. These materials ensure stable performance under high temperatures, high pressure (up to 10MPa standard, 30MPa for thermowell type), and mildly corrosive media.


Performance Comparison and Value Proposition
The response time for assembled units is slower than sheathed types. For a φ16 tube, T0.5 exceeds 40 seconds. However, for most fixed pipeline and furnace temperature monitoring applications, this response speed is perfectly adequate. The real advantage lies in cost-effectiveness. For the same measurement point, the purchase cost of an assembled unit is about 60% of a sheathed unit. This makes assembled products an excellent choice for large-scale projects where budget matters.
Universal design and standardization are core principles for Anhui Tiankang's assembled products. Every unit complies with both GB/T 16839 and IEC 60584 standards. Replacement elements purchased anywhere in the world will fit perfectly with Tiankang protection tubes. Each product undergoes 100% appearance and performance verification before leaving the factory.
Global Standards and Fast Delivery
Export orders can be supplied according to EU EN or North American ASTM standards. We provide CE, ATEX, or EAC customs clearance certificates. Standard models like WRN-230 (K-type, fixed thread, waterproof junction box) have a production cycle of just 5-7 working days. For special insertion lengths or flange standards, our technical team responds quickly after drawing confirmation.
Tiankang's assembled series serves thermal power, chemical, and heating projects worldwide. These products are the trusted workhorse for basic temperature measurement applications. The 18-month warranty gives customers additional peace of mind.

Product Specifications
|
Parameter |
Assembled Thermocouple (WR series) |
Assembled RTD (WZP series) |
|
Structure |
Modular assembly, element replaceable |
Modular assembly, element replaceable |
|
Common Indexing |
K, E, J, T, N, S, R, B |
Pt100 (standard), Pt1000, Cu50 |
|
Temperature Range |
-200°C to 1600°C (S/R/B high-temp) |
-200°C to 500°C |
|
Accuracy Class |
Class I, Class II |
Class A, Class B |
|
Tube Diameter |
φ16 (standard), φ20, φ25 |
φ16 (standard), φ20, φ25 |
|
Tube Material |
304, 316L, 310S, GH3030, Alumina Ceramic, Corundum |
304, 316L, 310S, GH3030, Alumina Ceramic, Corundum |
|
Nominal Pressure |
Standard ≤10MPa; Thermowell type up to 30MPa |
Standard ≤10MPa; Thermowell type up to 30MPa |
|
Response Time (T0.5) |
φ16 tube > 40s |
φ16 tube > 40s |
|
Explosion-Proof Rating |
ExdⅡCT6 (flameproof, model suffix 4) |
ExdⅡCT6 (flameproof, model suffix 4) |
|
Wiring Method |
2-wire |
3-wire (standard), 4-wire |
|
Ingress Protection |
IP65 (waterproof/flameproof models) |
IP65 (waterproof/flameproof models) |
|
Common Models |
WRN-230, WRN-430, WRN-240 (flameproof) |
WZP-230, WZP-440 (flameproof) |
|
Applicable Standards |
IEC 60584, GB/T 16839 |
IEC 60751, GB/T 30121 |
|
Warranty Period |
18 months |
18 months |
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