Armoured RTD for Power Stations (WZPKD)

Product Model WZPKD

Product Brand

Product Category Temperature instruments, Temperature instruments / Temperature sensors, Temperature instruments / Temperature sensors / Thermal resistors

Application Industry Power and Energy

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.

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  • 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.

Sheathed RTD for Power Stations (WZPKD) Technical Specifications
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.

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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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WZPKD · Sheathed RTD for Power Stations (WZPKD)

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