Field Instruments

General

The Model VSR-SG is a vane type waterflow switch for use on wet sprinkler systems using CPVC plastic fittings (manufactured by Tyco, Nibco, Victaulic, Ipex, and Spears Manufacturing Company) that use 1", 1 ¼", 1 ½", or 2" pipe sizes. It is equipped with a union to accommodate installation in confined spaces.

The VSR-SG 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 switch. The flow condition must exist for a period of time necessary to overcome the selected retard period.

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 plastic fittings
• Comes with all necessary paddles
• Two SPDT (form C) contacts
• Weatherproof
• Easy to read wire terminal designations

Specifications

• Make : Potter
• Model: VSR-SG
• Conduit Entrances: Two knockouts provided for 1/2" conduit. Individual switch compartments suitable for dissimilar voltages
• Contact  Ratings: Two sets of SPDT (Form C) 10.0 Amps at 125/250VAC 2.0 Amps at 30VDC  Resistive 10 mAmps min. at 24VDC
• Enclosure Cover : Weather/UV/Flame Resistant High Impact Composite Base - Die-cast aluminum
• Environmental Specifications:  NEMA 4/IP54 Rated Enclosure suitable for indoor or outdoor use with factory installed gasket when used with appropriate conduit fitting. Temperature Range:  40°F - 120°F, (4.5°C - 49°C) - UL
• Flow Sensitivity Range for Signal: 4-10 GPM (15-38 LPM) - UL
• Maximum Surge:18 FPS (5.5 m/s)
• Service Pressure: Up to 175 PSI (12,07 BAR)
• Service Use:
  • • British Standard   B59251
    • Automatic Sprinkler   NFPA-13
    • One or two family dwelling  NFPA-13D
    • Residential occupancy up to four stories NFPA-13R
    • National Fire Alarm Code  NFPA-72

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