Potter VSR-2 VSR Series Vane Type Waterflow Alarm Switch with Retard, 2" Nominal Pipe Size

Keep wet-sprinkler systems reliably monitored and code-compliant with the Potter Electric Signal VSR-2 vane-type waterflow alarm switch. This Potter VSR Series waterflow switch delivers dependable detection for fire protection and building security by sensing sprinkler flow and signaling alarm circuits while minimizing nuisance trips through an adjustable pneumatic retard. The VSR-2 is UL Listed and FM Approved, and is rated for installation on 2" nominal pipe (with larger sizes available), and meets UL sensitivity ranges (flow signaling in the 4–10 GPM range and actuation around 10 GPM depending on installation). Two SPDT snap-action switches allow separate alarm and supervisory or remote-monitoring connections, simplifying integration with fire alarm panels and facility monitoring systems. The durable die-cast housing includes tamper-resistant fasteners and an optional cover-tamper switch for added security and tamper detection. Ideal for new installations, system upgrades, or sectional detection on large systems, the VSR-2 helps protect assets, occupants and operations. Contact your distributor or order the VSR-2 today to strengthen sprinkler monitoring and building security.

• Reduces false alarms and improves system reliability with an adjustable, instantly-recycling pneumatic retard
• Code-ready protection: UL Listed, FM Approved and LPCB accepted for streamlined approvals and inspections
• Dual SPDT snap-action switches enable separate alarm and supervisory/remote monitoring circuits for flexible integration
• Tamper-resistant die-cast housing and optional cover tamper switch protect against unauthorized access and support building security
• Designed for easy installation on 2" nominal pipe (sizes up to 8" available) and usable as a sectional detector on large wet sprinkler systems