The Model VS-SP is a vane type waterfl ow switch for use on wet sprinkler systems. These devices may be used as sectional fl ow indicators on large sprinkler systems and on smaller sprinkler systems such as mobile homes and residential dwellings. The VS-SP does not have a retard to prevent false alarms due to water surges. Therefore it should NOT be used on systems with variable water pressure supplies except in the case of elevator recall.

Main Features

• Service Pressure: Up to 250 PSI (17,2 BAR)
• Minimum Flow Rate for Alarm: 10 GPM (38 LPM)
• Maximum Surge: 18 FPS (5,5 m/s)
• Enclosure: Die-cast, red enamel finish / Cover held in place with tamper resistant screws
• Contacts: One set of SPDT (Form C), standard
• Second set optional: 15 Amps at 125/250VAC / 0.5 Amps at 125VDC / 0.25 Amps at 250VDC / 2.5 Amps at 30 VDC resistive
• Conduit Entrance: One opening for 1/2" conduit
• Usage: Listed plastic, copper and schedule 40 iron pipe. For pipe sizes - 1" (25mm), 1-1/4" (32mm), 1-1/2" (38mm), and 2" (50mm)
• Suitable for indoor or outdoor use with factory installed gasket and die-cast housing.
• NEMA 4/IP55 rated enclosure - use with appropriate conduit fi tting.
• Temperature range: 40°F to 120°F (4,5°C to 49°C)