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FSU Series Flow Switches

The flow switches from Sensate – Cynergy3 are designed for use in liquid flow systems at pressures up to 10 bar and temperatures up to 85ºC.
The design is based around a moving magnet and a fixed reed switch with a low flow restriction. The switches are designed to be used in liquids only and should not be used in systems with significant amounts of solid particles.




  • Industrial or domestic boilers and steam generators
  • Industrial garment cleaners
  • Circulation pump protection
  • Leak detection
  • Cooling systems for electronic equipment (laser heads, welding machines, x-ray tubes, semiconductor equipment)
  • Mains water control
  • Dispensing equipment
  • Flow sensing
  • Processing equipment, water purifications and filtering, distilling
  • Presses, rotating equipment, conveyors, machine tools, robotics
  • 1/2” and 3/4” NPT thread connections

  • 1/2” and 3/4” push fit connections

  • Low flow versions available

  • Maximum operating pressure 10 bar

  • NSF 61 Approved

  • Operating temperature rated to 185°F


FSU Series Flow Switches - Data Sheet