Rotameter Flow Meters

The Variable Area Flowmeter is one of the oldest and mature principles in flow measurement with its simple design: a float rises inside a conically shaped glass tube as the flow increases and its position on a scale can be read off as the flow rate.

  • Stainless Steel Design
    Designed for Harsh Applications
    Borosilicate Glass 
    Easy to Read, install and Maintain
    Optional Limit Swithches
    0.04 - 44 GPM Water     
    0.09 - 90 SCFM Air

    Air   Water

    Custom Applications

  • 316L Stainless Steel Construction
    2% Full Scale accuracy
    4-20ma output                               Hart Protocol Available
    Adjustable Limit Switches
    0.95 to 550 GPM
    0.42 to 1050 SCFM

    Air   Water

    Custom Applications

  • The RAKD Rotameter is used for measurement of liquids and gases and is highly accurate, particularly for low flows and high pressure applications.

  • The Rotameters RAGK/ RAGL are specifically designed for the measurement of low flows of liquid and gases. Their main application field is in purging, analyzer and gas sampling systems, laboratories and machinery equipment.

  • Thie Mini Rotameter RAGK is designed for measurement of liquids and gases. The conical glass metering tube has a free rotating float. Measureable Flow Rate: Water = 0.002 l/h to 600 l/h; Air = 0.2 l/h to 6300 l/h

Rotameter HistoryIn the 1990s, Yokogawa strengthened its focus on flowmeters through cooperation with and the eventual acquisition of the German flowmeter manufacturer ROTA. In so doing Yokogawa gained access to 100 years of flowmeter expertise and completed its flowmeter portfolio by adding the Rotameter (variable area) and Rotamass (Coriolis) product lines.

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