VSR-S (EU) Vane Type Water Flow Switch

VSR-S (EU) Vane Type Water Flow Switch

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  • LPCB Logo Mid Grey.jpg
  • CE Logo Mid Grey 144.jpg
Approvals LPCB and CE Approved, UL Listed
Working Pressure 20.7 bar (300 psi)
Pipe Size 25mm (1”), 32mm (1¼”), 38mm (1½”) or 50mm (2”)
Flow Sensitivity Range for Signal 15-38 LPM (4-10 GPM) - UL
Enclosure Die-cast, red enamel finish Cover held in place with tamper resistant screws
Conduit Entrances Two ½” openings provided for conduit or cable fitting.
Maximum Surge 5.5 m/s (18 FPS)
Pressure Loss 0.2 bar (3 psi) max. at 5 m/s

The Model VSR-S (EU) is a vane type waterflow switch for use on wet sprinkler systems that use 25mm (1”), 32mm (1¼”), 38mm (1½”) or 50mm (2”) pipe size. 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 38 LPM (10 GPM) or more occurs downstream of the device. The flow condition must exist for a period of time necessary to overcome the selected retard period.