Ultrasonic flowmeters


Using the transit time method, ultrasonic flowmeters measure liquid and gaseous mediums.

Typical applications include:

  • Power plants: cooling water and demineralised water, steam, thermal oil (HTF), molten salt
  • Chemical industry: metering of liquid hydrocarbons and low conductivity liquids, including feedstock, solvents, chemical addition in reactor control metering, demineralised water
  • Petrochemical refineries: feedstock, cooker feed flow, cracking, desulphurisation, residues, blending of crude oil and refined product
  • Petrochemical plants: feedstocks (e.g. naphtha and natural gas), (intermediate) products such as ethylene, propylene, solvents
  • Oil & gas industry: measurement of crude oil and refined product, natural gas, liquefied natural gas (LNG) and biogas; standard and custody transfer applications in production, pipeline transfer and leak detection, loading and off loading, storage and distribution
  • Water/utilities: demineralized water, water purification, effluent, compressed air
  • HVAC: metering of chilled water and hot water for (custody transfer) energy measurement


  • Complete portfolio for liquid, gas and steam applications
  • Accuracy and reproducibility regard- less of medium properties such as viscosity, temperature, density and electrical conductivity
  • Diagnostic and compensation functions for disturbed flow profiles and deposits
  • No moving parts or components that protrude into the measuring tube
  • Low operating and maintenance costs due to non-wearing parts
  • Excellent long-term stability, no recalibration required
  • High degree of reliability thanks to redundant measuring paths
  • High-temperature versions available
  • Large dynamic range
  • Bi-directional flow measurement



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