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PDFlo PDSG1 Positive Displacement Spur Gear Flow Meter

PDFlo PDSG1 Positive Displacement Spur Gear Flow Meter

The PDFlo PDSG1 Positive Displacement Spur Gear Flow Meters produce good resolution and high accuracy at low flow rates. Flow may be bidirectional without damage to internal parts. Non-intrusive sensors, panel displays and electronic modules can be added to complete this superior value package.


  • Agriculture
  • Chemical & Petrochemical
  • Environmental Water & Wastewater
  • Food & Beverage
  • Minerals & Mining
  • Oil & Gas
  • Power & Energy

Product: PDSG1

Principle of Operation

One primary feature is the ability to maintain consistent accuracy despite changing viscosity conditions. This reliability, coupled with a large turndown range, offers an affordable replacement for older turbine technology. The meterÍs solid construction and excellent dynamic response are well suited to the measurement of oil, grease, fuel, solvents, polyurethanes, brake fl uid, skydrol as well as other nonabrasive lubricating fluids. Since there is no need for straight run piping upstream or downstream of the flow meter, the PDFlo flow meters are simple to use and to install.

  • Flow ranges 0.003 to 120.0 GPM
  • Accuracy ± 0.5% of reading
  • Pressure rating up to 5000 PSI
  • Economical cost
  • Seven Flow Ranges available
  • Aluminum, 303 and 316 SS bodies

Accuracy: ± 0.5% with over 10:1 turndown with 30cP fluid
Repeatability: ± 0.1%
Body Material: Aluminum, T-303 SS, T-316 SS
O-Ring Material: Teflon, Viton, EPDM

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