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Turbine flow sensors with threaded connection / Version for HVAC and industrial

型號:Type VT25
  • Pressure rating up to 50 bar
  • The SIKA turbine flow sensor type VT25 is used for flow measurement and dosing in water and water mixtures. The sensor is used in many applications, including:

    • monitoring of cooling circuits in machine and plant construction
    • water treatment
    • cleaning processes
    • dosing

    The liquid flowing into the turbine flow sensor is divided into partial jets by the blading. These hit the rotor uniformly from different directions and cause it to rotate. The speed of the rotor is now converted into an electrical pulse signal (frequency): The rotor is equipped with magnets, a Hall effect sensor detects the rotational movement.

    A flow proportional frequency signal (square wave signal) is available.

    The geometry of the blading and rotor enables the realization of very low start-up values.

    Series VTH25 VTM25
     
    • Cost optimized version
    • Pressure rating up to 50 bar
  • Type VTH25 VTM25
    Material pipe section Brass Plastic PP Brass Stainless steel
    Flow range 4...160 l/min*
    Accuracy ±5 % of of reading (up to 5 l/min 7 % of of reading)
    Repeatability ±0.5 %
    Signal output < 1 l/min
    Medium temperature 0...85 °C** 0...80 °C** / 2 bar
    0...60 °C** °C / 5 bar
    0...30 °C** °C / 10 bar
    0...85 °C**
    Pressure rating PN 10 PN50
    Nominal diameter DN 25
    Process connection G 1¼ male thread, supplementary screwed connection required, see accessories

    Output signal
    →Pulse rate / K-factor
    →Resolution
    →Signal shape

    →Signal current


    65 pulses/l
    15 ml/pulse
    Square wave signal
    NPN open collector
    Max. 19 mA

    65 pulses/l
    15 ml/pulse
    Square wave signal
    NPN open collector
    Max. 19 mA
    Electrical connection 2 m PVC cable, shielded
    (Tmax = 75 °C)
    4 pin plug connector M12 x 1
    Power supply 10...30 VDC
    optional 4.5...26.5 VDC
    6.5...24 VDC
    short circuit proof and reverse polarity protected
    Degree of protection EN 60529 IP54
    Max. particle size in the medium < 0.63 mm

    * not suitable for continuous operation
    ** non-freezing