Mass flowmeters


The function of mass flowmeters is based on the Coriolis principle. They allow for a direct measurement of mass flow, density and temperature of liquids and gases as well as calculation of volume flow and mass or volume concentration with a single device.

Typical applications include:

  • Chemical: measurement of concentration or density, bulk loading, batching to reactors, hydrocarbon cracking, aggressive, abrasive or viscous mediums or mediums of unknown composition
  • Food & beverage: filling machine applications, measurement of degrees
  • Brix, flow, density, specific gravity, additive components dosing
  • Pharmaceutical: batching, dosing and filling, solvent extraction ultra-pure water measurement
  • Water & wastewater: flocculent dosing, sludge flow and density measurement
  • Pulp & paper: paper stock, pulp, additives, bleaches, colourants
  • Oil & gas: metering skids, bypass density measure- ment, CNG/LPG dispensers, leak detection, custody transfer applications such as tanker loading, bunkering and pipeline transfer


  • Entrained Gas Management EGM: no loss of measurement with gas entrainments up to 100%
  • Indication or configurable alarm to improve processes by identifying transient gas entrainments
  • Not susceptible to installation effects: can be installed regardless of type of installation (no straight inlets/outlets) and external influences such as tube vibrations
  • Only straight tube measuring devices for custody transfer applications in the highest OIML accuracy class of 0.3, approved to OIML R117/MID
  • Flow rates from 0.0003 to 2,300 t/h
  • Minimal pressure loss with straight tube measuring devices: reduced power consumption of pumps
  • High density accuracy, not affected by medium and temperature changes
  • Suitable for highly viscous mediums, inhomogeneous mixtures, mediums with solid content or gas inclusions
  • Modular design for quick and easy replacement of electronics and/or flow sensors
  • Self-draining and easy to clean
  • OPTIMASS 7000 suitable for highly sensitive mediums as well as mediums requiring low flow velocity
  • Variety of wetted materials (e.g. for corrosive mediums): titanium, stainless steel, HASTELLOY®, tantalum, duplex & super duplex
  • Options for secondary containment up to 100 bar/1450 psi (OPTIMASS 2000 up to 150 bar/2176 psi)
  • Turnkey solutions for the operation of batch plants



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