F-4200 Clamp-on Ultrasonic Flow Meter



ONICON clamp-on transit time ultrasonic flow meters are installed without penetrating the pipe wall, and this makes them ideal for those special applications where it is impractical to install insertion or inline flow meters. Instead of penetrating the pipe wall, a pair of precision matched ultrasonic signal transducers that are tuned to the acoustic properties of the pipe accurately measure flow through the pipe wall. The result is a meter that is:

  • Ideal for retrofit applications.
  • Capable of measuring flow independent of the conductivity of the liquid.
  • Meets all safe drinking water standards.
  • Suitable for use with liquid temperatures up to 450˚F.



  • Chilled water, hot water, condenser water & water/ glycol solutions for HVAC
  • Steam condensate
  • Domestic/municipal water
  • Process water & other clean liquids  

Copyright @  Siam Pollutek Co.,Ltd. All Right Reseveds.