Main Technical Data
Nominal working pressure	1.2Mpa
Diameter	DN50-DN200
Sensitivity	15-37.5L/Min
Contact capacity	DC 24V 0.5-1.0A
Material	Ductile Iron

 

Water Flow Switch--The Model VSR is a vane type water flow switch for use on wet sprinkler systems. The VSR may also be used as a sectional water flow detector on large systems. The VSR 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 GPM (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.