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See All Flow Switches

Model FS1-W High Sensitivity Liquid Flow Switches

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For general purpose applications where high sensitivity is required and moderate or low flow rates are encountered such as air conditioning, heating and hydronic systems, water, fuel oil, some viscous liquids and oils in process work.

  • In-line configuration eliminates need for a pipe tee
  • High flow capacity
  • 1⁄2″ NPT
  • Single pole, double throw snap switch
  • Switch compartment is completely sealed to protect it from the liquid
  • Sensitivity adjusting screw makes flow adjustment easy

Selection Tools

Ready to select this pump as well as accessories, air/dirt separators, tanks and PIC valves? Click below to open the new Bell & Gossett ESP-Systemwize selection tool and enter your duty points to begin selecting the most energy efficient model for your system:

ESP-Systemwize

Optional Features

  • BSPT threads
  • Gold plated contacts
  • Minimum temperature (fluid or ambient) 32°F (0°C)
  • Maximum temperature 225°F (107°C)
  • Maximum operating pressure 100 psi (7 kg/cm2)