High Temperature Heated (FRAP-HTH)

The FRAP-HTH is designed to operate and measure in wet steam flow environment. The tip is heated through a high power density cartridge heater above the flow  saturation temperature in order to keep the tip dry. The probe tip is equipped with 2 peizo-resistive sensors encapsulated under the pressure taps. The probe measures the unsteady flow field up to a frequency of 25KHz with a maximum operating temperature of 220°C.

Limmat Scientific

High Temperature Heated (FRAP-HTH)

Integrate probes with turn-key LSc measurement system including calibration, traversing system and full suite of post processing data reduction and analysis software.


  • 2.5mm probe tip diameter
  • 25KHz measurement bandwidth
  • Maximum temperature: 220°C
  • -30 ≤ yaw angle ≤ 30
  • -30 ≤ pitch angle ≤+24°
  • Media: wet steam
  • High sensitivity
  • Fully calibrated
  • Fully compatible with FRAP turn key system.
  • Robust measurement too used in the last stage of low-pressure steam turbines
  • No cooling required