4" EXPLOSION PROOF WATERFLOW SWITCH - Fire Protection Parts
Potter Electric Signal

4" EXPL PROOF FLOW SWITCH

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.

Technical Data Sheet
Item Number VSRFEX0400
Brand Potter Electric Signal
Box Quantity 1
Product Weight 10.48 lb
$2,343.10
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