Potter VSR-FE2-35, Vane-Type Waterflow Switch for 3.5-inch Steel Pipe, with Retard, DPDT Contact(s)

Features

• UL and ULC Listed, FM Approved
• Service Pressure: Up to 450 PSI (31 BAR)
• Minimum Flow for Alarm: 10 GPM (38 LPM)
• Maximum Surge: 18 FPS (5.5 m/s)
• Power Requirements
  • STANDBY: 10ma at 120V AC or 1.5ma at 24V AC/DC
  • ALARM: 40ma at 120V AC or 35ma at 24V AC/DC
• Contact Ratings: DPDT (Form C) 2 Amps at 30VDC or 125VAC resistive
• Conduit Entrances: Two knockouts provided for ½" conduit
• Suitable for indoor or outdoor use with factory installed gasket and die-cast housing.
• NEMA 4 Rated Enclosure - use with appropriate conduit fitting
• Temperature range: 40°F / 120°F, 4,5°C/49°C
• Non-corrosive sleeve factory installed in saddle
• Sizes Available: Schedules 10 thru 40, sizes 2" thru 8" (50mm thru 200mm)
• Caution: This device is not intended for applications in explosive environments.

Description

The Model VSR-FE-2 is a vane type waterflow switch for use on wet sprinkler systems. It is UL Listed and FM Approved for use on steel pipe; schedules 10 thru 40, sizes 2" thru 8" (50mm - 200mm). The unit may also be used as a sectional waterflow detector on large systems.

The unit contains an output relay and an adjustable electronic retard. The relay is 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 unit is 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 fi eld installable cover tamper switch is available as an option which may be used to indicate unauthorized removal of the cover.

Compatible Pipe/Installation Requirements