SIKA Turbine Flow Sensor Families
Mechanical turbine-based flow sensors for liquids.
Original manufacturer: SIKA Dr. Siebert & Kühn
Official Technical Source
SIKA product families and documentation →
SIKA turbine — moving rotor and pressure loss
The SIKA VT20 photo illustrates a mechanical turbine flow family, whose sensing rotor can be affected by solids, viscosity and insufficient fluid flow. Determine the correct liquid, minimum measurable velocity, acceptable pressure loss and service cleaning method before selecting a turbine design. Meter calibration can depend on installed pipe conditions. It should not be substituted for a magnetic-induction induQ device merely because both list litres-per-minute outputs.
SIKA VTY, VT and VTR — rotor flow sensor and pulse calibration
| Family / parameter | Original maker evidence | Engineering difference |
|---|---|---|
| Operating principle | A rotor turns with liquid flow; Hall/inductive pickup creates pulses proportional to volume | A turbine needs suitable medium lubricity/cleanliness; it is a moving-parts system distinct from vortex VVX. |
| VTY10 / VTY15 / VTY20 | DN10: 1–30 L/min; DN15: 1–45 L/min; DN20: 1–60 L/min | Individual calibrated pulse frequency and plumbing connection depend on purchased unit. |
| VTY25 / VT40 | VTY25 maker German range 1–90 L/min; VT40 6.7–417 L/min | These family ranges are not universal calibration for all VTY/VT sizes. |
| Common electrical interface | Pulsed NPN output for VTY and VT series; special inductive/Hall variants for VTR | Count pulses and apply maker K-factor (pulses/L), not 0–10V without a separate signal converter. |
| VTR industrial stainless | Threaded DN10–50 and flanged DN10–300 options, separate electromagnetic Hall/sine or square-wave pickups | Pick-up type, fluid viscosity, flow direction and upstream piping affect output pulse waveform and calibration. |
| Media and QA | Primarily water and water mixtures; potable-water type approvals only on qualified VTY options | Do not use VTY accuracy for highly viscous process oils or assert explosive atmosphere certification. |
Selection and qualification checklist
Check flow arrow, pipe gasket/installation torque, pickup supply, pulse-count scaling and wear/rotor fouling. The actual calibration factor must be read from device nameplate or certificate rather than a guessed pulses/L number.
Manufacturer sources: SIKA turbine sensor nominal ranges · SIKA VTY potable-water product options.