Vortex flowmeter for internal energy balancing

  • For liquids, (wet) gases and steam (up to +240°C / +464°F)
  • Integrated pressure and temperature compensation
  • Flange: DN15…300 / 12…12"; wafer version: max. DN100 / 4"
  • 2-wire, 4…20 mA, HART®
  • Technology icon for Flow computer built-in

OPTISWIRL 4070 C – Compact version with integrated pressure / temperature compensation and flange

OPTISWIRL 4070 C Vortex flowmeter – Compact version with integrated pressure / temperature compensation and flange

The OPTISWIRL 4070 is a Vortex flowmeter with integrated temperature and optional pressure compensation. It is best suited for internal monitoring of heat transfer and other liquids, burning and inert gases as well as saturated and superheated steam or condensate. The Vortex meter provides reliable measurement of operating and standard volumes as well as mass flow of liquids, gases and steam – even at fluctuating process conditions. Additional cost-intensive installation of separate temperature and pressure sensors are  therefore not needed.

The OPTISWIRL 4070 is available with flange connection or in wafer design. The flowmeter can also be provided with integrated nominal diameter reduction and as field mount version (with cable length up to 15 m / 49 ft). The 2-wire device is approved for use in hazardous areas.

Product highlights

  • Flange or space-saving sandwich (wafer) version (up to DN 100 / 4")
  • Compact all-in-one device for varying process conditions
  • Integrated gross heat calculation for steam
  • Optional shut-off valve to allow replacement of pressure sensor without process interruption
  • ISP (Intelligent Signal Processing) for stable measurement results free of external
  • Approx. 45% less installation costs compared to Vortex meter with external T and P sensors plus calculator
  • Optional integrated reduction of nominal size for increased accuracy

Typical applications


  • Utility applications: Energy distribution in auxiliary and supply circuits
  • Measurement of (non-)conductive liquids, gases, saturated and superheated steam
  • Gross heat metering of steam
  • Monitoring of compressor output and evaluation of Free Air Delivery (FAD)
  • Measurement of consumption of industrial gases (natural gas, nitrogen etc.)
  • Measurement of consumption in compressed air systems

Chemical and other process industries

  • Hydrocarbons, thermal oils etc.
  • Solvents
  • Desalinated water
  • Gases, welding gases, steam
  • Petrochemical products (benzene, ethylene, etc.)

Iron, steel and metal industry

  • Cooling circuits
  • Oxygen, natural gas, steam
  • Compressed air
  • Inert gases
  • Oxygen
  • Natural gas
  • Steam

Food and beverage industry

  • Purified and desalinated water
  • CO2

Machinery and apparatus (OEM industry)

  • Carrier air etc. (e.g. for sterilisation units, packaging machines etc.)

Wastewater industry, renewable power industry

  • Dry and humid biogas at the inlet of CHP (combined heat and power) systems

Pulp and paper industry

  • Compressed air, steam etc.

Oil and gas industry

  • Petrochemical products (benzene, ethylene, steam, etc.)

Download Center

  • Technical datasheets and handbooks
  • Flyers and brochures
  • Certificates and approvals
  • Software and driver
View OPTISWIRL 4070 related downloads