Variable Area Flowmeters
For simple and cost-effective flow measurement of gases or liquids without auxiliary power
- Glass and metal tube purgemeters: For low-flow applications <DN15 / 1/2" and process meters up to DN150 / 6"
- Optional communication and outputs: Switches, 4...20mA, HART®, FOUNDATION Fieldbus, Profibus-PA
- Safety and global approvals: Globally approved for use in hazardous areas and suited for safety related SIL 2 applications
When are variable area flowmeters used?
Variable area flowmeters, also known as VA meters or rotameters, are widely used instruments for measuring the volumetric flow rate of conductive and non-conductive liquids and gases. These devices are characterised by their simple but effective mechanical operating principle, which basically requires no additional power supply.
Variable area flow measurement technology is the most widely used and most suitable solution, particularly for measuring low flow rates of clean liquids or gases, where the focus is not on the highest absolute accuracy, but on cost-effectiveness and a compact installation situation. KROHNE has been developing and producing variable area flowmeters since 1921.
Model : Variable area flowmeters
