Potter VSG-3


3″ Flow Switch, 3 GPM

Availability: In Stock

  • Factory New
Brand: Potter FireAlarm.com Part #: 80963 Categories: , , , Manufacturer Part #: VSG-3


The Model VSG is a flexible vane type of waterflow switch for use in wet pipe water mist systems where a low flow for alarm is required. It is designed for installation in sections of 2 to 4 inch (50mm to 100mm) stainless steel or brass pipe with wall thickness in accordance with the above specifications (see “Nominal OD and Wall Thickness”). The unit may also be used as a sectional waterflow detector on large systems. The unit contains an output relay and an adjustable electronic retard. The relay is actuated when a flow of 3 gallons per minute (11,4 LPM) or more occurs downstream of the device. The flow condition must exist for a period of time necessary to overcome the selected retard period.


Weight 1 lbs

Potter Electric Signal Company, LLC





Unit of Measurement

EA (Each)

Production Status



  • 0-90 second field replaceable electronic time delay retard
  • Easy to adjust electronic time delay
  • Two DPDT (form C) contacts
  • Weatherproof
  • Easy to read wire terminal designations
  • 5 year warranty
  • Low 3gpm flow activation

VSG; Low Flow Vane Type Waterflow Switch W/Retard

Potter - Data Sheet