KFR - Acrylic Flow Meter for Liquids or Gases

Brand: KOBOLD Instruments, Inc

The KFR line of acrylic body variable area flow meters offers the perfect balance between low-cost, accuracy and range availability.

Bridging the microflow and large flow ranges, this flow meter can provide an effective solution to many industrial applications.

It has a one-piece acrylic body with PVC or metal fittings for durability. To take the guesswork out of reading the flow, large lettering and extra hash marks make the scale clearly visible.

Further enhancing readability, the low flow rotameters offer an inherently stable float design, while the larger flow meters feature a float stabilization mechanism.

In the larger flow ranges, the stabilization mechanism allows a smaller installation footprint at a correspondingly lower price.

Most units are offered both with and without control valves. Accuracy, value, low cost are three not-so-mutually-exclusive attributes made possible by KOBOLD KFR flow meters.
  • Clear, Easy to Read Scales
  • Compact Size
  • Durable Construction
  • Low Cost
  • Metric Scales Available
  • Quick Delivery


Measuring Ranges

  • 0.2-2 GPH to 2-20 GPM
  • 0.1-1 SCFH to 10-100 SCFM


  • 1/8” NPT
  • 1/4” NPT
  • 1” npt

Body Material

  • Clear Acrylic

Maximum Pressure

  • 100 psig

Maximum Temperature

  • 150° F


  • ± 2-5 % Full Scale

Media Categories

  • Liquid
  • Gas

  • Air Sampling Equipment
  • Aquaculture
  • Desalinization
  • Gas Analysis
  • Medical Industry
  • Water Treatment


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