Process, Instrumentation & Environment

Flow meter paddle torsional type DPT- kobold

The paddle torsional flow meter type DPT from kobold works with practically no wear and tear. A flat torsion spring fastening the paddle provides the elastic force, and forms the basis of the measuring principle. The deflection of the lever arm is transferred through a magnet to a Hall-effect sensor in a non-contacting fashion. This technology has important advantages: the devices operate independent of the operating pressure. Friction loss during paddle deflection causes no switching hysteresis. 
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The very reliable measuring instrument is ideally suited for measuring and monitoring continuous flow. The fourteen measuring ranges range from 5–30 l/min to 850–1900 l/min water. The mechanical connection is available in sizes G 3/8 to G 3. Corresponding NPT connections and a power supply of 115 VAC are available as well.

The devices can be connected to machine controllers and other automation/control systems with different outputs from different electronics. There is a choice between compact electronics with 3-digit LEDs or convenient and versatile ADI electronic analysers. The robust aluminium bronze or stainless steel cases are designed for a maximum operating pressure of PN 40. Protection type is IP65.
The kobold paddle torsional flow meter model DPT is suited for applications in machine building, chemical and pharmaceutical industries, the heavy goods industry, as well as in beverages and tobacco manufacturing.

  • Measuring range: 5 - 30 L/min... 850 - 1900 L/min water;
  • Connection: G 3/8...G 3, 3/8 NPT...3 NPT;
  • Material: aluminum/bronze, st. st.;
  • Max. pressure: PN 40;
  • Max. temperature: 80 °C;
  • Accuracy: ± 3 % FS.

  • Simple and reliable design;
  • Operation with virtually no wear.

  • Machine automation;
  • Food and beverage industry;
  • Chemical and pharmaceutical industry;
  • Heavy industry.

F.Fonseca is the representative of Kobold in Portugal.
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