Push-in flow sensor Type VTH15


Product description

Possible areas of application Push-in turbine flow sensor Type VTH 15

Push-in flow sensors of the type VTH15 were specially developed for the installation in fittings and feature an easy and space-saving system integration. Typical applications for these flow sensors are:

  • Tap water detection
  • Water treatment
  • Leak detection




Measuring principle
The liquid flowing into the turbine flow sensor is split into individual jets by the guiding blade. These jets hit the rotor evenly from different directions, setting the rotor in motion. The rotation speed of the rotor is then converted to an electrical pulse signal (frequency): The rotor is fitted with magnets and a Hall effect sensor detects the rotation of the rotor.
A flow-proportional frequency signal (square-wave signal) is made available.
Given the uniform inflow to the bearing, the forces largely cancel themselves out and wear is reduced to a minimum. The extremely hard bearing materials - sapphire and hard metal - also guarantee an exceptionally long endurance.

The push-in flow sensors consist of two components: A push-in turbine and a Hall effect-sensor. This construction is the key for the space-saving installation. A high quality sapphire bearing guarantees a long durability of the measuring system and allows the measurement of low flow rates from one litre per minute  due to low start-up velocities.

  • Low deviation in mass production, fixed pulse rate
  • High measuring accuracy
  • Low wear and extremely long durability due to high quality bearing
  • Compact dimensions
  • Proven in numerous mass production applications


Technical features

Technical features

 Push-in turbine
Flow range 2...40 l/min with continous operation 20 l/m
Accuracy ±1 % of range
Repeatability ±0.2 %
Signal output From 0.3 l/min
Medium temperature Max. 85 °C
Nominal diameter DN 15
Hall effect sensor
Nominal pulse rate
Frequency output
855 pulses / l
NPN open collector
Power supply 4.5...24 VDC
Electrical connection 1.5 m PVC cable, shielded (Tmax = 75 °C)
Pressure rating PN 10
Process connection Push-in sleeve Ø 15 mm

 Further details and accessories can be found in the datasheet.



Data sheet


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