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Sonic Nozzle (Critical Venturi) Gas Flowmeters

Sonic Nozzles

Sonic Nozzles are internationally recognized as the ideal solution for gas flow measurement and Calibration.

Rangeability and accuracy are limited only by the choice of pressure transducers used for measurement of the upstream flow.

PC based data acquisition systems offered with PTB/DKD approved algorithm for mass flow calculation



Specifications Overview

Measuring Principle: Sonic Nozzles
Sizes: Various fittings available
Flow ranges: 10 to 20000 ALPM (0.35 to 715 ACFM)
Uncertainty: +0.2% of mass flow rate typical
Pressure: 15 bar or higher

 

Advantages:

  • True mass flow measurement
  • No moving parts, resulting in long term accuracy and repeatability
  • Flowrate is not affected by downstream flow disturbances.
  • Long term accuracy
  • Excellent repeatability
  • Traceability to National and International Standards (PTB, LNM, NIST).

Technical Data:

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