Coriolis mass flowmeters

When it comes to Coriolis mass meters, their supreme technology should not be a matter of price. Mass meter technology is based on the Coriolis principle. The mass flow of liquids and gases depends on the deviation of the measuring tubes caused by the flow of media. Also through the resonant frequency of vibrating tubes we can get the density of the medium. KROHNE Coriolis meters are characterized by high accuracy, even with very rapid changes in media temperature. Due to straight pipes, the pressure drop is minimized. Process temperature up to 400 ° C as well as pressure up to 100 bar.



Coriolis mass flowmeter for advanced process applications

  • High accuracy (±0.05% flat), for cryogenic to HT media (-200…+400°C / -328…+752°F); maintains operation even with entrained gas of up to 100%
  • CT: OIML R117, R137, MI-005, MI-002; API, AGA; hygienic certifications
  • Flange: DN10…300 / 12…12″, max. PN 160 / ASME Cl 1500
  • 3 x 4…20 mA, HART®7, Modbus, FF, Profibus-PA/DP, PROFINET


Coriolis mass flowmeter with one straight tube

  • Extensive sensor and process diagnostics (incl. NE 107)
  • It is the first single straight tube meter on the market
  • For very aggressive, highly corrosive or shear-sensitive media
  • For non-homogeneous mixtures
  • Custody transfer (fiscal metering)


  • The world’s highest capacity Coriolis mass flowmeter for liquids and gases
  • Twin or four straight tube design
  • Size up to DN400 and max. pressure up to 180 barg
  • CT approvals for oil and gas

Entrained Gas Management

KROHNE’s OPTIMASS series with Entrained Gas Management (EGMTM) functionality is the only range of meters to offer a solution for all flow conditions at a gas volume fraction (GVF) from 0 to 100%.

Today OPTIMASS Coriolis flowmeters with Entrained Gas Management can provide repeatable measurement in situations like:

  • liquids mixed with gas
  • slurries with gases
  • high viscous fluids with gas entrainments                                             

Coriolis meters can measure the mass flow and density of any fluid, regardless if it is aerated or not.