Variable area flowmeter for basic applications

  • With glass tube, MIN/MAX switches and 4…20 mA
  • Low pressure loss for gas applications
  • Flange: DN15…50 / ½…2"; also NPT, G, hygienic connections, etc.
  • -20…+100°C / -4…+212°F; max. 10 barg / 145 psig
  • Icon/Logo Security Integrity Level 2 (SIL 2)

VA40 – Version with thread

VA40  Variable area flowmeter – Version with thread

The VA40 is a glass tube variable area (VA) flowmeter for flow measurement of liquids and gases. The all-purpose flowmeter is suitable for all basic applications up to +100°C / +212°F and max. 10 bar / 145 psi. Typical applications include flow measurement of flushing, purging or inert gases or heating and cooling circuits.

The VA40 operates without auxiliary power supply. The measuring cone, protected by a metal sleeve with a viewing glass, makes it easy to directly read the flow and to observe the medium. The VA meter can also be equipped with two optional limit switches (MIN/MAX) or analogue output (4…20 mA). The flowmeter comes with many process connections and can be used in hazardous areas.

Product highlights

  • Simple, low-cost measuring principle without auxiliary power
  • For direct reading of the flow and observation of the medium
  • Optional MIN/MAX flow switches (SIL 2 conform acc. to IEC 61508-2) or 4…20mA for recording and control
  • Full scale value for liquids: 0.4…10,000 l/h / 0.1…2,650 GPH
  • Full scale value for gases: 7…310,000 l/h / 0.25…11,000 SCFH
  • Uncertainty: ±1.0% (acc. to VDI/VDE 3513, sheet 2)
  • Turndown ratio 10:1
  • Use in hazardous areas
  • SIL 2 conform for Safety Instrumented Systems (SIS)
  • Available as food and pharmaceutical variant (with FDA compliant materials)

Typical applications

Machinery and apparatus (OEM industry)

  • Air and cooling water supply
  • Gas measurement for industrial furnaces and thermal processes
  • Measurement of protective gases

Pharmaceutical industry

  • Demineralised and ultrapure water, alcohol, solvents, insulin etc.

Food and beverage industry

  • Air or water supply, alcohol, nitrogen, carbon dioxide (CO2)

Conventional and nuclear power industry

  • Water monitoring in auxiliary circuits