Model: V31-Heinrichs-Variable Area Flow Meter

Flow measuring of liquids and gas can be used in the chemical industry or medical or laboratory engineering. The remarkable features of this device are Precision, reliability, and efficiency. This device has a robust mechanical system with a low rate of wear and extremely compact design.

The V31 metering device is used for flow metering, dosing, monitoring, and control of liquid and gas media in pipes.
The scale on the device shows the flow rate expressed as volume or mass per unit of time.


Flow metering of liquids and gases e.g. in the chemical industry or in medical or laboratory engineering.
The current flow rate in volume or mass per unit in time is shown.

Special features

  • Modular device concept
  • User friendly design
  • Chip guard
  • Limit switches (option)

Another Article:

Technical Data :

Water: 20 °C, min: 6,5-65 l/h, max:1.000-10.000l/h
Air: 0 °C, 1,013 bar abs., min: 150-1.500 Nl/h, max:18.000-180.000 Nl/h
Flow rate units on the glass cone.
Accuracy class: 
(acc. VDE/VDI 3513, page 2):
Liquid: 1,6%
Gas: 2,5%
Metering of liquid products with suitable viscosity, free of solids, not clog and do not tend to form deposits.
Gases with linear flow characteristics and adequate inlet pressure
Ambient conditions: 
Ambient temperature: -20°C up to +80°C
Fluid conditions: 
Nominal pressure:15 bar max. (depends on temperature and material, details see relevant data sheet)
All pressure data refer to liquids without danger potential and proper and stress free installation of the equipment.

Download Catalog: Variable Area Flow Meter Model V31-Heinrichs