DPM - Pelton Wheel Flow Sensor

Brand: KOBOLD Instruments, Inc

The DPM flow sensor uses the pelton wheel principle to measure the flow of water and water-based, low-viscosity liquids that are optically transparent.

Liquid passes through a nozzle at the inlet of the flow body and is precisely directed onto a flat-blade pelton turbine. The flow sensor’s pelton turbine wheel rotates at a speed proportional to flow rate.

The movement of the pelton wheel is detected optically, and the signal from the optical sensor is processed as an amplified pulse or 4-20 mA signal, both of which are proportional to flow rate.

In addition to the DPM’s compact design, the inlet flow is redirected via a nozzle; therefore, no inlet or outlet straight piping is required and allows the unit to be mounted in any orientation with the axle remaining in the horizontal plane.

These features make the metal DPM ideal for mounting in locations where space is tight.
  • Flow Measurement of Low Flow Rates
  • Compact Design
  • Long-Life Sapphire Axle/Bearing Assembly
  • Analog or Frequency Pulse Signal Outputs
  • Optional Digital Flowrate Indicators
  • Made in the USA
  • Quick Delivery


Measuring Range

  • 0.24-4.8 GPH to 0.8-80 GPH


  • 1/8” NPT
  • 1/4” NPT
  • G 1/8
  • G 1/4

Housing Material

  • Nickel-Plated Brass
  • 316L Stainless Steel

Maximum Pressure

  • 230 psig

Maximum Temperature

  • 176° F


  • ± 1.5 % Full Scale
  • ± 2.5 % Full Scale w/K000 and F300 Output

Signal Output

  • Pulse Frequency
  • 4-20 mA Analog
  • Transistor Switch


  • 3-Digit LED or Analog Pointer Indication

Media Category

  • Liquid


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