Details
Potter Amseco VSR-4 Vane Type Waterflow Alarm Switch with Retard, 4" Pipe Size (Replaces VSR-F)
The Potter Amseco VSR-4 is a vane type water-ow switch for use on
wet sprinkler systems. It is UL Listed and FM Approved for use on steel
pipe; schedules 10 through 40, size 4" (50 mm thru 20 mm).
The VSR-4 may also be used as a sectional water-ow 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 -ow of 10 GPM (38 LPM) or more occurs
downstream of the device. The -ow condition must exist for a period of
time necessary to overcome the selected retard period.
