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Series FS4-3 General Purpose Liquid Flow Switches



Features and Benefits

  • Universal design serves the widest variety of applications
    • For starting or stopping electrically operated equipment such as signal lights, alarms, motors, automatic burners, metering devices and others
    • Replacement for common flow switches from Johnson/Penn, Potter/Taco, Watts, Hydrolevel and other manufacturers
  • 1″ NPT
  • Two electrical knock-outs allows connection from either end
  • Sensitivity adjusting screw makes flow adjustment easy
  • Single pole, double throw snap switch
  • Hardened stainless steel bearings minimize friction
  • Sealed Monel bellows
  • Four stainless steel paddles included -1″, 2″, 3″ & 6″ (25, 50, 80, & 150mm)

Optional Features

  • Two SPDT switches to make or break two separate circuits
  • Materials of construction suitable for corrosive liquids
  • BSPT threads
  • Minimum temperature (fluid or ambient) 32°F (0°C)
  • Maximum temperature 300°F (149°C)
  • Maximum pressure 160 psi (11.3 kg/cm2)

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