KROHNE 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 func- tions 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


Ultrasonic flowmeters for gas and steam

 1  2  3
Universal 2-beam device for inline measurement of process gases
 OPTISONIC 7300 C Biogas
Ultrasonic flowmeter for biogas applications for direct meansurement of methane content
2-beam ultrasonic flowmeter for superheated steam


Ultrasonic flowmeters for liquids

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 UFM 3030 C
Universal 3-beam device for inline measurement of liquids
3-beam ultrasonic flowmeter for liquids with extended process temperatures and high viscosities
 UFM 530 HT
Rugged 2-beam high-temperature device for extreme process conditions
 7  8
Flexible clamp-on device with industrial clamp-on mechanism
Battery-powered portable clamp-on device
 9  10  11
Cost-effective 3-beam device to measure light products for custody transfer
12-beam device for measuring gas for custody transfer
5-beam device for measuring crude oil and crude oil products for custody transfer

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