KROHNE is your reliable partner for process instrumentation and automation. As our client, you benefit from our ability to solve your applications with matching measurement solutions; we offer a complete product portfolio, industry specific system solutions and complementary services for instrumentation projects.


Ultrasonic flowmeter for custody transfer (CT) measurement of gases

  • 12-chord meter, for high accuracy flow metering of gases
  • OIML R137 (class 0.5), MI-002, AGA9 etc.
  • DN100…1600 / 4…64″; max. PN450 / ASME Cl 2500
  • Pure hydrogen and blends of hydrogen with natural gas


Ultrasonic flowmeter for natural gas, process gas and utility gas applications

  • 2-path ultrasonic flowmeter for process gases
  • Flange: DN50…1000 / 2…40“
  • ASME, DIN flanges as standards, optional weld-in or Grayloc
  • Standard pressures up to 150 bar, optional design to 431 bar
  • Wetted materials: Carbon steel (ASTM A105/106), stainless steel (AISI 316 L), LTCS (ASTM A350/A333)
  • Transducers: NACE-approved, (conform ASME strength requirements); Titanium grade 29 (standard), Inconel 625, duplex/ composite


Ultrasonic flowmeter for superheated steam and high temperature gases

  • 2-path meter with optional mass flow and enthalpy calculation
  • For steam billing, boiler or power plant monitoring (up to +620°C / +1148°F)
  • DN100…1000 / 4…40″; max. PN250 / ASME Cl 2500
  • Large turndown ratio (60:1)

Coriolis Mass Flowmeters

For all process and custody transfer (CT) applications

  • All welded design (prevents hydrogen leakage)
  • Secondary housing always Helium leak tested and Nitrogen filled
  • DN10 … DN300 / ½…12”; max PN160 / ASME Cl 1500
  • Bluetooth with OPTICHECK Flow Mobile verification available
  • 316L and Hastelloy materials are not subject to hydrogen embrittlement


Vortex flowmeter for utility applications and energy management systems

  • Certified for SIL2 in 1oo1 voting and for SIL3 in 1oo2 voting for the continuous measuring mode
  • Wetted parts in 316L in accordance to ISO/TR 15916 for Hydrogen.
  • Special tests for Hydrogen applications are available, e.g. material hardness testing, helium leak testing and x-ray of welds.
  • Suitable for applications with lower pressures, starting at 1 bar.
  • SIL2/3 certified


Flow computer for custody transfer (CT) measurement

  • Cost effective solution due to modular hardware design
  • Full colour graphical touch screen for maximum process transparency
  • Automatic Performance Monitoring extends recalibration interval
  • Approved for hydrogen applications


For simple and cost-effective flow measurement of gases or liquids without auxiliary power

  • Complete portfolio of glass and metal tube meters for sample flow and process measurement of gaseous Hydrogen and Hydrogen compounds
  • 1.4404/316L as standard metal material
  • Optional Helium leak-test and material NDE
  • No sensor feed through, no gaskets on H250 and DK34, no potential leakages


Process instruments for pressure and differential pressure applications

  • Gold plated membranes, ceramic measurement cells
  • DP flow and DP level
  • Suited for liquid and gaseous hydrogen

PipePatrol Pipeline Management Solutions

Comprehensive suite of modules for leak detection, predictive modeling as well as
monitoring of tightness and lifetime stress

  • For 100% hydrogen and hydrogen blends of different percentages
  • E-RTTM (Extended Real Time Transient Model) based leak detection and localisation
  • From single software applications to full packages including instrumentation, cyber security and field data acquisition

CT metering skids

Flow metering systems from initial design to commissioning

  • Turnkey metering systems for oil, gas, hydrogen and CO2 in accordance with local metrology regulations
  • Full integration test done prior to shipment.
  • Including analyzer and sample systems
  • Seamless integration of KROHNE and 3rd party instruments