Potter Amseco VSR-FEX-2-1/2 Explosion Proof Vane Type Waterflow Switch, 2-1/2" Pipe

The Model VSR-FEX is a vane type waterflow switch for use on wet sprinkler systems located in hazardous locations as shown above. The unit may also be used as a sectional waterflow detector on large systems.

The unit contains two single pole, double throw, snap action switches and an adjustable, instantly recycling pneumatic retard. The switches are actuated when a flow of 10 gallons per minute (38 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-1113225, VSRFEX25

Technical Specifications: Contact Ratings: Two sets of SPDT (Form C), 15.0 Amps at 125/250 VAC, 2.0 Amps at 30 VDC Resistive Maximum Surge: 18 FPS (10 m/s) Minimum Flow Rate for Alarm: 10 GPM (38 Lpm) Service Pressure: Up to 450 PSI (31 BAR)

For more information about the Potter / Amseco VSR-F-EX-2.5, please contact us.