Ultrasonic flowmeters

For process and utility applications, energy and custody transfer (CT) measurements

  • Comprehensive portfolio for gases, liquids and steam
  • High temperature and cryogenic versions, variants for high pressure and higher viscosities
  • Various designs: From clamp-on devices to multipath inline flowmeters


12 products
Industrial requirements
Measured media


Ultrasonic flowmeter for liquid process applications

  • Accurate 3-path meter: large dynamic range, maintenance-free, no pressure loss
  • Cryogenic (-200°C/-328°F) and HT (+250°C/+482°F) versions; viscosities up to over 1000 cSt
  • Flange: DN25…3000 / 1…120", max. PN200 / ASME Cl 1500; also weld-ends
  • 3 x 4…20 mA, HART®, Modbus, FF, Profibus-PA/DP

OPTISONIC 3400 District Heating

Ultrasonic flowmeter for district heating applications

  • 3-path meter for thermal energy measurement and heated water
  • CT: OIML R75, MID MI-004 (Class 1, 2, 3)
  • Flange: DN25…2000 / 1…80", max. PN40 / ASME Cl 300
  • Max. +180°C / +356°F


Ultrasonic flowmeter for high pressure liquids

  • 2-path meter for flow measurement of condensate, high pressure feedwater, spray water or water injection
  • Operating pressure up to 490 bar / 7107 psi
  • Max. DN1000 / 40", up to ASME Cl 4500
  • 3 x 4…20 mA, HART®7, Modbus, FF, Profibus-PA/DP


Ultrasonic flowmeter for high temperature liquids

  • 2-path meter for flow measurement of thermal oil, boiler feed water, crudes and hot feed flows in refineries
  • Up to +600°C / +1112°F
  • Flange: max. DN1000 / 40"
  • 3 x 4…20 mA, HART®7, Modbus, FF, Profibus-PA/DP


Ultrasonic clamp-on flowmeter for temporary flow measurement of liquids

  • Portable, battery-powered meter used to collect additional flow data or for cost-effective on-site verification of inline flowmeters
  • For pipes DN15…4000 / ½…160"; up to +120°C / +248°F
  • Portable signal converter with integrated data logger
  • Commissioning, monitoring and data analysis via a mobile smart device using the OPTISONIC 6300 P mobile app in combination with a USB cable or wireless Bluetooth connection®


Ultrasonic clamp-on flowmeter for flow measurement of liquids

  • Stationary device, for installation at any location without process interruption or need to cut pipes
  • Up to +200°C / +392°F
  • Robust stainless steel sensor rail for pipes DN15…4000 / ½…160"
  • 4…20 mA, HART®7, Modbus, FF, Profibus-PA/DP


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

  • 2-path meter, for standard volume flow metering, independent of media properties
  • No maintenance, no pressure loss, large dynamic range
  • Flange: DN50…1000 / 2…40", max. PN450 / ASME Cl 2500; also weld-in connections
  • 3 x 4…20 mA, HART®, Modbus, FF

OPTISONIC 7300 Biogas

Ultrasonic flowmeter for biogas, landfill and sewage gas applications

  • 1- or 2-path meter for low-pressure biogas (dry or wet) with a high CO2 content
  • Integrated gas volume correction and methane content measurement
  • Lap joint flange: DN50…200 / 2…8", max. PN10 / ASME Cl 150
  • Large turndown ratio (100:1)


Ultrasonic flowmeter for custody transfer (CT) measurement of gases

  • 12-chord meter, for high accuracy flow metering of natural gas
  • CT: OIML R137 (class 0.5), MI-002, AGA9 etc.
  • Many variants, extensive CBM diagnostics free of charge
  • Flange: DN100…1600 / 4…64"; max. PN450 / ASME Cl 2500


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)


Ultrasonic flowmeter for custody transfer (CT) measurement in upstream and midstream applications

  • Multipath inline meter for crudes, refined products, cryogenic media and chemicals
  • CT: OIML R117, API compliant
  • Flange: 4…24"; max. ASME Cl 600
  • -200…+250°C / -328…+482°F


Ultrasonic flowmeter for custody transfer (CT) measurement of liquid hydrocarbons

  • Multipath inline flowmeter for light crude oils and refined products
  • CT: OIML R117, MI-005, API, GOST etc.
  • Flange: 2…40"; max. ASME Cl 900
  • -200…+220°C / -328…+364°F