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SIKA

VTY 20 Turbine Flow Sensor

The SIKA VTY 20 turbine flow sensor gives you precise and robust products to measure flow rates or total flows, for water and water mixtures. Turbine flow sensors of the series VTY stainless steel were specially developed for the use in industrial applications. The sensors are particularly suitable for use in, e.g. dosing systems, heaters, coolers or temperature control units.

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Measurement range 1...60 l/min
Accuracy ±1 % of range ±1 % of reading
Signal output From 0.8 l/min
Nominal diameter DN 20
Pressure rating PN 16
Medium temperature 0...90 °C
Ambient temperature 0...70 °C
Process connection G1 male thread
Output signal Square wave - frequency signal, NPN open collector
Pulse rate / K-factor 122 pulses/l
Electrical connection 80 mm single wire with Molex Mini-Fit® Jr. plug optional: 0.5 m PVC cable
Power supply 4.5...24 VDC
Pressure drop 0.33 bar (at Q = 60 l/min)

The SIKA VTY 20 turbine flow sensor gives you precise and robust products to measure flow rates or total flows, for water and water mixtures. Turbine flow sensors of the series VTY stainless steel were specially developed for the use in industrial applications. The sensors are particularly suitable for use in, e.g. dosing systems, heaters, coolers or temperature control units.

The liquid flowing into the turbine flow sensor is split into individual jets by the flow straightener. These jets hit the rotor evenly, 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 reduced to a minimum. The sturdy bearing materials – sapphire and hard metal – also guarantee an exceptionally long endurance.

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Christiaan

Christiaan van Mourik

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