Potter VSR-6 VSR Series Vane Type Waterflow Alarm Switch with Retard, 6" Nominal Pipe Size

Protect your facility with dependable, code-compliant waterflow detection designed for commercial wet-sprinkler systems. The Potter Electric Signal VSR-6 vane type waterflow alarm switch delivers fast, reliable notification of downstream water flow while reducing false alarms with an adjustable, instantly recycling pneumatic retard. UL Listed and FM Approved, the VSR-6 is built for 6" nominal pipe installations and actuates at flows in the UL sensitivity range (4–10 GPM, nominal trip at 10 GPM), making it ideal for sectional detection on large systems.

Constructed in a rugged die-cast housing with tamper‑resistant screws and optional cover tamper switch, the VSR-6 secures your water flow controls and integrates seamlessly with fire alarm panels using two SPDT (form C) contacts. Conduit knockouts and clear wiring terminals speed installation and support dissimilar voltages where needed. Whether you manage building security, surveillance integration, or life-safety monitoring, the VSR-6 provides trusted performance for fire protection and facility monitoring needs. Specify the Potter VSR-6 for reliable sprinkler monitoring—contact us to order or to discuss application sizing and system integration.

• Reliable wet-sprinkler monitoring that detects flow events to protect facilities and reduce downtime
• Adjustable pneumatic retard minimizes nuisance alarms while ensuring confirmed water flow signals
• Durable die-cast housing and tamper‑resistant cover for secure installation in critical security and fire protection systems
• Two SPDT contacts for easy integration with alarm panels, building management, and security monitoring systems
• UL Listed, FM Approved, LPCB and CSFM rated for code compliance on steel pipe (6" nominal pipe size support)
• Simple installation with 1/2" conduit knockouts and clear terminal designations for fast commissioning