Armoured RTD for Power Stations (WZPKD)
Thermowell-type sheathed RTDs (WZPKD) for power station thermal systems, suitable for high-temperature, high-pressure and vibrating environments, and easy to replace in service.
- Original Factory Genuine, Tenfold Compensation for Counterfeits
- Full Machine Warranty, Lifetime Maintenance
- In Stock, Shipped on the Same Day
The WZPKD series armoured thermal resistor for power stations is designed for high-temperature and high-pressure temperature measurement in power station boilers, main steam pipelines and thermal systems. It adopts a thermowell-type structure with an insertion depth of l=120mm (S≥20mm). The product is used in combination with a protection tube; during operation, the protection tube maintains good contact with the measuring end of the armoured element, providing vibration resistance and fast thermal response. It supports three-wire/four-wire, single/double element and various protection tube material options, facilitating in-service repair and replacement.
| Parameter Name | Technical Specifications |
|---|---|
| Main technical specifications | |
| Structure type | Thermowell type (01A / 01B), plus air duct/flue duct / high pressure / medium pressure / low pressure types |
| Graduation | P2 = Pt100 |
| Measurement Range | 0~600℃ |
| Tolerance A/LA/HA | ±(0.15+0.2%|t|)℃ |
| Tolerance B/LB/HB | ±(0.34+0.5%|t|)℃ |
| Measuring end type | Three-wire / four-wire |
| Number of elements | Single element / double element |
| Insertion depth l | 120mm (S≥20mm, thermowell type) |
| Overall length L | 470mm (other specifications by agreement) |
| Power station operating parameters | |
| Nominal pressure | 29.4(42) / 14.7 / 9.8(14.7) MPa |
| Permissible flow velocity | <80 / <30 / <9(30) m/s |
| Thermal response time τ0.5 | <180s (duct/flue type <90s) |
| Structural options | |
| Terminal box material | Cast aluminium / stainless steel |
| Electrical connection | M20×1.5 / NPT1/2″ / G1/2″ / ZG1/2″ female thread |
| Protection tube material | 304 / 316 / 316L / 20# carbon steel / 12Cr1MoV / 15NiCuMoNb5-6-4 / 15CrMo / A182F91 |
- Thermowell (hot-sleeve) design, insertion depth l=120mm, S≥20mm
- Combination of protection tube and sheathed element: high pressure rating, long service life, easy in-service repair and replacement
- Spring-loaded design ensures good contact at the measuring tip and resistance to vibration
- Insulated sheathed element prevents electromagnetic interference
- Low/high-temperature ceramic elements selected according to operating temperature (LA/LB -200 to 400°C, HA/HB -50 to 600°C)
Main steam and boiler temperature measurement in power plants
Thermowell design installed on high-temperature, high-pressure steam lines; the measuring tip stays in continuous contact with the protection tube, resists vibration and allows in-service replacement.
Thermal system monitoring in power plants
Continuous temperature measurement under conditions of 0 to 600°C and nominal pressure up to 29.4(42)MPa.
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.
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- Email inquiry web@qishan-sh.com



