2 1/2" FLOW SWITCH

Description
The Model VSR is a vane type waterflow switch for use on wet
sprinkler systems. It is UL Listed for use on a steel pipe; schedules 5
through 40, sizes 2" - 6" and is UL Listed and FM Approved for use on
steel pipe; schedules 10 through 40, sizes 2" thru 8" (50 mm thru 200
mm). LPC approved sizes are 2" thru 8" (50 mm thru 200 mm). See
Ordering Information chart.
The VSR may also be used as a sectional waterflow 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.

Technical Data Sheet