Chemical Injection – Positive Displacement



Technical Inquiries



Rotary Piston Positive Displacement Flowmeters
Extremely Low Flow Series VFF




  • Flow ranges down to 0.1 ml/min, depending on viscosity and rotor
  • Accuracy: ± 0.5% to ± 1.0% of actual reading
  • Viscosity range: 0.8 to 2000 cSt or higher
  • Pressure rating: up to 4000 bar (58000 psi)
  • Temperature rating: -40 to +60 °C (-40 to 140 °F)
  • Output: Reed Switch
  • Body 316L Stainless Steel with standard NPT female connections
  • Other process connections available
  • Tolerant of particulate up to 150 microns
  • Very low pressure drop
  • Measures pulsating flow accurately
  • Preserves molecular integrity of fluid
  • Special ranges, pressure, viscosity, compatibility, process connections, etc. contact JLC


Instrumentation for Rotary Piston Displacement Flowmeters
Flow Rate and Totalizer


101-remote_small (1)  


  • Flow rate and totalizer head or remote mounted
  • Reed Switch input from VFF flowmeters
  • Analogue outputs
  • Linearization for extreme low flows
  • Display integral
  • Intrinsically safe versions
  • Hart, Modbus, Fieldbus, etc. optional
  • Battery, loop or main powered
  • Protection class IP66 (NEMA4X) or higher


Please note: Manual data files can be quite large, please be patient while downloading.
The manuals are for information purposes only and shouldn’t be used for operating the instrument