KOBOLD Instruments Inc • 1801 Parkway View Drive • 15205 Pittsburgh, PA • Tel: +1 412 788 2830 • E-mail: Please activate JavaScript • visit koboldusa.com

doe-durchfluss.png: Positive Displacement Oval Gear Flow Meter DOE

Positive Displacement Oval Gear Flow Meter DOE

For low and high viscous liquids

Measuring range:
0.5 - 36 l/h ... 1 - 40 l/min
Viscosity: up to 1000 cP 
Accuracy: ±1 % of reading
pmax: 64 bar
tmax: 80°C
Connection: ⅛" ... ½" (f) as thread NPT and G 
Material: stainless steel, PEEK/PPS
Output: pulse
Options/Features: for pulsating flow,
integrated temperature measurement


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761 KB

Operating Instructions

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DOE - Operating Instructions

365 KB


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General Safety Instructions

175 KB

Principle of Operation

Oval gear flow meters are categorised as positive displacement flow technology. When liquid flows through this type of positive displacement flow meter, 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. The rotation of the oval gears 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 flow meters.
The positive displacement flow technology allows for precise flow measurement of most clean liquids regardless of the media conductivity. Other liquid properties also have a minimal effect on the performance of this type of meter. Flow profile conditioning is not required as with alternative flow technology options, making oval gear installations simple to install in tight spaces and at an economical price.

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KOBOLD Instruments Inc.

1801 Parkway View Drive
15205 Pittsburgh PA
United States of America

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