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FLUXUS 501 – Ultrasonic Water Flow Meter

ultrasonic water flow meter for waste water
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FLUXUS 501 – Ultrasonic Water Flow Meter

The FLUXUS 501 clamp on ultrasonic water flow meter is FLEXIM’s solution for many flow metering applications found in the water and wastewater sector and adjacent industries.

As FLEXIMs basic and economic alternative, the FLUXUS 501 clamp on ultrasonic water flow meter offers the same benefits in terms of accuracy and reliability as its bigger brothers, the FLUXUS F721.

The FLUXUS 501 clamp on water flow meter offers a precise bi-directional flow measurement over a wide turndown ratio.  Its matched and paired transducers offer superior zero stability providing accurate measurement of both high and low flow velocities.

With its water-tight IP67 transducers and a permanent coupling, the FLUXUS 501 can be safely installed subsurface, providing a maintenance free solution.  Suitable for applications with pipe diameters up to 2500 mm, it is an accurate and cost effective alternative to other measurement technologies, such as magnetic flow meters.

Applications include:


  • Drinking Water Networks
  • Trunk Mains
  • Pen Stocks
  • Wastewater Systems
  • Leak Detection
  • Network balancing
  • Verification of existing inline meters
  • Leakage control
  • Treatment dosage
  • Flow control in water supply networks
  • Pump control


  • Clamps onto the outside of the pipe – no need to cut into the pipe to install the meter
  • Simple to use with reliable results
  • Matched and paired transducers
  • Two flow channels
  • Accurate Bi-directional measurement for nearly all pipe materials and nearly all liquid media – huge internal database
  • High repeatability
  • Capability to measure large pipes up to 100”+
  • Flexibility for a broad application range with only two pairs of transducers
  • Accurate and reliable measurement even under difficult flow conditions
  • Pre configuration available

Technical details:

  • Please download data sheet for more technical information