Flow Measurement Variable Area
Flow Meter

Fail safe flow measurement for liquids and gases….

McMenon Variable Area flowmeters offer a simple and versatile measurement solution for liquid and gas process fluids with both metal and glass products.

With either a clear glass tube or easy to read dial indicator, these provide an ideal method of visualising flowrate quickly and easily. With a range of tube lengths and tapers available, we have a meter designed to meet your fluid and process requirements.

Our Variable Area flowmeters are flexible to customer needs with the capability to provide the measurement in direct measurement scale, corrected to standard or normal conditions or even as a ratio of tube diameter to float diameter along the tapered tube. Each scale can be adjusted to achieve the specific accuracy class needed from the application with conformity to the VDI/VDE standard.

The Variable Area Flow meter range of instruments provide an economical solution for laboratory and OEM customers. Pressure and flow control are available with the use of regulators and flow control valves.

Hazardous area approvals for the product means it can be installed in zones 0, 1 and 2.

A simple, cost effective solution for a multitude of applications.

Sizing and selection is simplified by use of McMenon Solve, the ultimate tool for DP flowmeter sizing and more, used on-line
or off-line and available to download now

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Special features

  • Tube diameter ranges from 1/8” to 4”
  • Accuracy classes from 1 to 10
  • Flow and pressure control available
  • Easily installed
  • Hazardous area approvals
  • Hygienic model available


  • Low flow application in laboratory or field
  • Power
  • Chemical
  • Food & Beverages
  • Metals & Mining
  • Paper & Pulp, Pharmaceuticals
  • Water & Wastewater Treatment
  • Oil & Gas
  • Pharmaceutical