Process, Instrumentation & Environment

Oval wheel flowmeter for low and high viscous liquids DON - Kobold

Oval wheel flow meters for low and high viscous liquids
Oval gear flowmeters are categorised as positive displacement flow technology. When liquid flows through this type of positive displacement flowmeter, two oval geared rotors measure a constant volume per rotation within a precisely machined measuring chamber. With each rotation, a constant volume of liquid is measured.
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The rotation of the oval gear is sensed via magnets embedded within the rotors. These magnets transmit a high resolution pulse output.

The output signal can be processed externally via a remote display controller or PLC, or via a variety of output/display options available as accessories attached to the flowmeters.
  • Measuring range: 0,5 to 36 l/h and 150 to 2500 l/min.;
  • Viscosity range: up to 1000 cP (higher on request);
  • Accuracy: ±0,2 to 1% of reading;
  • Material: aluminium or stainless steel;
  • pmax: 100 bar; tmax: 150 ºC;
  • Pulse output, LCD display, 4…20 mA, alarms, mechanical register.
  • Special cut rotors reducing the pressure drop by 50%;
  • Two out of phase pulse outputs "A” and "B”, so that net flow rate may be computed correctly by the PLC;
  • Conduct very fine dosing of resins, resulting in an improved repeatability and quality of the finished abrasives.
For all viscous, non-abrasive clear liquids like:
  • Chemicals;
  • Fuels;
  • Grease;
  • Ink;
  • Oil;
  • Pastes;
  • Petroleum.

F.Fonseca is the representative of Kobold in Portugal.
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