The model F3.05 single insertion rotor flow switch is designed for the protection of pumps against running without lubrication or against pumping against a closed valve.

It features an SPST (Single Pole Single Throw) electromechanical contact that activates when the flow velocity drops below the factory preset value, 0.15 m/s (0.5 ft/s).

On the F3.05 model there is a LED that indicates the status of the local flow. Specially designed adapter family reduces installation time in all pipe materials and sizes, from DN15 to DN600 (0.5-24”).


  • Pump protection
  • Filtration plants
  • Water cooling systems


  • Sensor body in PVC-C, PVDF or stainless steel
  • Simple insertion system
  • High chemical resistance
  • No flow alarm relay output
  • Highly visible bicolor LED status indicator
  • Maintenance-free
  • Very low pressure drop


Contact our product expert

Alberto Claveri
Aliaxis Italia Segment Manager Industry
+39 335 7490 115
Alberto Claveri: Aliaxis Italia Segment Manager Industry