•Model : VSR (comes with Retard)
•Manufacturer: Potter
•Maximum Service Pressure: 450 PSI (31 BAR)
•Flow Sensitivity Range for Signal: 4-10 GPM (15-38 LPM)
•Contact Ratings: Two sets of SPDT (Form C)
•NEMA 4/IP54
•Temperature Range: 40°F - 120°F, (4.5°C - 49°C) - UL
•Non-corrosive sleeve factory installed in saddle
•UL Listed and FM Approved
•The Model VSR-FEX is a vane type water flow 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.
General Information
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.