Gas flow meter

Calibration standard for low flows

Our ReciFlow™ is an extremely accurate flow meter for gases. The measurement principle is based on a proven technique of a flow-through piston. The gas flow meter is characterized by high measurement accuracy and reliability!

Technical data

Flow range*0.5…500 ml/min
Accuracy volumetric±0.3% MV +0.006 ml/min
Accuracy norm volume flow**±0.4% MV +0.006 ml/min
Reproducibility±0.15% MV +0.002 ml/min
Pressure range0.25…2.5 bar
*Final value as operating volume flow, initial value as norm volume flow
**Ambient temperature range 20.24 °C and pressure range 950..1050 mbar absolute.
Outside this specification, the measuring accuracy must be corrected by 0.1%.

The long-term stability (1 year) of ± 0.1% is included..

Measurement principle

Position of piston is measured continuously. Direction of piston movement is controlled by valves 1 and 2. The piston reciprocates in the tube, making the measurement continuous. A bypass valve 3 is opened when the instrument is shut down. Valves 1 and 2 are used to shut off the flow when in dosing mode.

Working principle


  • Continuous measurement
  • Faster and more reliable calibrations
  • Flexible adjustment of the flow volume
  • Easy to use intuitive touch panel user interface
  • Large pressure range that is not limited to ambient pressure

Get to know our test benches and do not hesitate to present your requirements to us! We would be happy to advise you on special requirements!