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

Needing minimum space.
The robust oval gear flow meter of DON series from Kobold is optimally designed for measuring flow rates of viscous fluids. It is used to monitor or dose lubricants, pastes, or oils, as well as measure flow rates of water, various chemicals, and even fuel. It covers a viscosity range of 0 to 1000 cP as standard.
 
The oval wheel meters are positive displacement flowmeters where the passage of liquid causes two oval gears to rotate within a precision measuring chamber and with each rotation a fixed volume of liquid passes through the meter. Magnets embedded within the gears initiate a high resolution pulse train output. The pulse output can be wired directly to process control and monitoring equipment or can be used as an input to instruments supplied with or fitted directly onto the meter.
 
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The flowmeter is available as a blind transmitter with pulse output capable of interfacing to most monitoring and control instrumentation or the meter can be fitted with or supplied with instruments such as totalizers, rate totalizers or batch controllers. These instruments also have monitoring and control output options including 4-20 mA, scaled pulse, flowrate alarms and batch control logic (preset metering).
 
This technology allows precise flow measurement and dispensing of most clean liquids regardless of their conductivity, with other liquid characteristics having no or minimal effect on meter performance. This metering technology does not require flow profile conditioning or straightline runs as required with alternative flow technologies making the installation relatively compact and low cost.

Positive displacement flowmeters are an inexpensive means to accurately meter high viscosity clean liquids as high as 1 million centipoises however, the appropriate meter must be sized so that the pressure drop across the primary measuring elements (oval rotor), does not exceed the maximum capability of either.
 
Features
  • Measuring range: 0.5 … 36 l/h and 150 … 2500 l/min;
  • Viscosity range: 0…1000 cP (higher on request);
  • Accuracy: ±0,2 % …2% of reading;
  • Material: aluminium or stainless steel;
  • Pmax: 100 bar; Tmax: 120 °C;
  • Pulse output, LCD display, 4…20 mA, alarms, mechanical register.
 
Advantages
  • Precise measurement of liquid conductivity;
  • For low and high liquid viscosity;
  • Simple and compact installation.
 
Industries 
In all industries with the need of measuring viscous and non abrasive clean liquids like:
  • Petroleum;
  • Grease;
  • Pastes;
  • Oil;
  • Fuel;
  • Water;
  • Chemicals;
  • Ink.

F.Fonseca is the representative of Kobold in Portugal.
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