Panel Mount Rotameter



  • Variable Area Flow Meter.
  • Flow Range Options: 0.5-4 LPM(0.1-1 GPM),  0.8-8 LPM(0.2-2 GPM),  2-18 LPM(0.5-5 GPM),  400-200 LPH (1.5-9 GPM)
  • Widely used for Reverse Osmosis System.
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Rotameter, Variable Area Flow Meter, Acrylic Panel Mount Water Flow Meter

  • Variable Area Flow Meter or Water Rotameter which has been designed to offer an economical solution for liquid flow measurements.
  • Flow Range (liter per minute or hour): 0.5 to 4,  0.8 to 8,  2 to 18 LPM,  400 to 2000 LPH.
  • Flow Range (gallon per minute): 0.1 to 1,  0.2 to 2,  0.5 to 5 or 1.5 to 9 GPM.
  • Scale on LPM (liter per minute) and GPM (gallon per minute).
  • Scale on LPH (liter per hour) and GPM (gallon per minute) for 9 GPM 400 to 2000 LPH size.
  • Connection: 1/2" BSP Male.
  • Simple installation, threaded connection.
  • Type: Panel Mounted.
  • Body: Acrylic.
  • Float & Leader: Stainless Steel.
  • Fittings: ABS.
  • O-ring: Silicon rubber.
  • Max Working Pressure: 1 MPA / 10 Bar / 145 PSI.
  • Max Working Temperature: 60 C.
  • Light weight, low cost and excellent readability rotameter.
  • Used for industrial and domestic application, Widely used in water treatment & filtration industry, reverse osmosis rotameter.
  • Indoor use.
  • More sizes and types are available.


  • Measurement Principle: Variable area flow using a float in a tapered tube made from special plastic materials.
  • Operation: The fluid flows up through the tapered tube forcing the float to a position with sufficient free area to enable the flow to pass. This free area is related to the flow rate, the weight of the float and the density and viscosity of the fluid. The pressure drop across the flow meter remains constant over the entire flow range. This occurs because the pressure drop is related to the fluid velocity and area of flow, the area of flow increases as the flow rate increases.

Additional information

Flow Range

0.5-4 LPM (0.1-1 GPM), 0.8-8 LPM (0.2-2 GPM),  2-18 LPM (0.5-5 GPM), 400-200 LPH (1.5-9 GPM)


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