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The SYNCROTRAK® flow prover meets the most stringent accuracy requirements of custody transfer meter proving or laboratory flow meter calibrations.

Because of its small size, the rugged and reliable SYNCROTRAK flow prover is ideal for both portable and stationary applications.

The high accuracy, low pressure drop and smooth operation make the SYNCROTRAK flow prover the number one choice for proving Coriolis mass flow meters, turbine meters as well as all other types of flow meters.


Measuring Principle: Piston, Positive Displacement
Flow range: 1 to 42,000 LPM (0.4 to 11,145 GPM)
Viscosity range: 0.5 to 10000 mm2/sec (cSt)
Uncertainty: +/- 0.02% of volumetric flow rate typical
UUT Inputs: TTLpulse, magnetic pickoff, RF pickoff Visual , Analog (0-10v, 4-20mA, etc.)


  • Simple mechanical operation, no hydraulics or pneumatics
  • Equal upstream and downstream volumes.
  • No adjustments for changing line pressures.
  • Traceability to National and International Standards (PTB, LNM, NIST).
  • User-friendly data acquisition and operating software.