Description
Potter VSR-S Vane Type Waterflow Alarm Switch with Retard for 1 in. to 2 in. Pipe Size
The Model VSR-S is a vane type waterflow switch for use on wet sprinkler systems that use 1” (25mm), 1¼” (32mm), 1½” (38mm) or 2” (50mm) 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 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.
The VSR-S switches and retard device are enclosed in a general purpose, die-cast housing. The cover is held in place with two tamper resistant screws which require a special key for removal. A field installable cover tamper switch is available as an option which may be used to indicate unauthorized removal of the cover.
Main Features
- Assembled in USA
- 0-90 second field replaceable time delay retard
- Easy to read retard time delay adjustment knob
- Fits 1” to 2” CPVC, copper, brass, or iron pipe
- Comes with all necessary paddles
- Two SPDT (form C) contacts
- Weatherproof
- Easy to read wire terminal designations
- 5 year warranty
