Potter VSR-SG Vane Type Waterflow Alarm Switch with Retard and Glue-In Union, for CPVC Pipe 1" to 2"

Ensure dependable sprinkler system monitoring with the Potter Electric Signal VSR-SG vane type waterflow alarm switch. Designed specifically for CPVC systems using 1" to 2" pipe sizes, the VSR-SG provides fast, reliable detection of sprinkler flow (actuates around 10 GPM) while protecting against nuisance trips with an adjustable, instantly recycling pneumatic retard. The compact glue-in union makes installation straightforward in tight or confined spaces and simplifies maintenance on retrofit or new builds. Equipped with two SPDT snap-action switches and rated up to 175 PSI, this waterflow switch supports separate alarm and supervisory circuits for integrated building monitoring, fire alarm interfacing, and security systems. The die-cast enclosure and NEMA 4/IP54 rating deliver outdoor-capable durability, and the tamper-resistant cover helps secure critical low-voltage components from unauthorized access. Ideal for fire protection contractors, building managers, and system integrators who need reliable flow detection for sprinkler and security monitoring applications. Specify the Potter VSR-SG to strengthen your fire alarm, security, and building surveillance monitoring—order today to protect assets and occupants.

• Reliable sprinkler monitoring that trips at approximately 10 GPM, reducing risk to property and occupants
• Adjustable pneumatic retard to prevent nuisance alarms and improve system reliability
• Glue-in union design for quick installation in confined spaces on CPVC 1" to 2" pipe runs
• Dual SPDT (Form C) contacts to support separate alarm and supervisory circuits for integrated monitoring
• Rugged die-cast, NEMA 4 / IP54 housing with tamper-resistant cover for indoor/outdoor durability and code compliance