Potter Amseco VSG-4 Waterflow Alarm Switch for Low Flow, 4" Pipe Size

The Potter Amseco VSG-4 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 4" stainless steel or brass pipe with 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.


Also known as: PL-VSG4, VSG4

Technical Specifications: Conduit Entrances: 2 knockouts provided for 1/2" conduit Contact Ratings: DPDT (Form C), 2 Amps at 0-30VDC or 0-125VAC resistive Power Requirements: STANDBY: 10ma at 120V AC or 1.5ma at 24V AC/DC; ALARM: 40ma at 120V AC or 35ma at 24V AC/DC Maximum Surge: 18 FPS (5,5 m/s) Flow Required for Alarm: 3.0 GPM (11,4 LPM) Service Pressure: Up to 450 PSI (31 BAR)

For more information about the Potter / Amseco VSG-4, please contact us.