TUV Turbine Wheel Flowmeter

Brand: KOBOLD Instruments, Inc.

The TUV Model turbines are based on the principle of the Woltmann rotating vane meter. A turbine wheel of negligible mass is concentrically mounted in a pipe and supported by bearings.

The liquid flows through the turbine wheel in the axial direction. The medium flow is smoothed by a flow straightener, and reaches the turbine wheel as a quasi-laminar flow stream.

The speed of the turbine wheel is proportional to the average flow velocity across the pipe cross-section. The rotational speed is thus proportional to the volumetric flow over a wide range.

An inductive transducer screwed into the turbine housing senses the speed of the turbine wheel in a non-contacting manner.

The sensor signal is amplified and converted to produce a pulse signal. The pulse count per time unit is proportional to the actual flow rate.

All turbines are calibrated and delivered with their own calibration reports. Variations in viscosities in your application can be taken into consideration during calibration of the most commonly found viscosities.



  • Fuel
  • Light Heating Oil
  • Liquefied Gases
  • Meter the Flow of Liquids of Low Viscosity
  • Pharmaceutical Liquids
  • Serve to Precisely Measure Actual Flow Rates
  • Tap Water & Demineralized Water
  • Turbine Flow Rate Measuring Transducers

Bearing Material

  • HM
  • Sapphire

BSP Connection

  • G 1" Female
  • G 1/4" Female
  • G 1-1/2" Female
  • G 3/4" Female
  • G 3/8" Female

Electrical Connectors

  • 5-Pin M12

Enclosure / Body Material

  • 303 Stainless Steel - Case/Interior Sections


  • 100 to 300 µm (TUV-1205 to TUV-1206) - Recommended Filter

Flow Rate

  • Liquids: 0 to 847 scfh (0 to 400 L/minute)


  • 925 to 2200 Hz

Input Power

  • 10 to 30 Vdc - Auxiliary Power


  • 130 to 32,500 Lmp./l


  • ± 1 % of Reading

Materials of Construction

  • 329 Stainless Steel - Turbine Wheel
  • 434 Stainless Steel - Turbine Wheel

Maximum System Pressure

  • psi: 9,137 (kPa: 63,000, bar: 630)


  • Push-Pull


  • ± 0.1 %

Response Time

  • 5 to 50 milliseconds

Supply Voltage

  • 30 V Umax - Voltage Level

Temperature Range

  • -40° to 125° C (-40° to 257° F) - Maximum

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