Potter VSG-4 4" Low Flow 3 Gpm Water Flow Indicator

Ensure dependable low-flow detection where it matters most. The Potter Electric Signal VSG-4 4" Low Flow 3 Gpm Water Flow Indicator is a purpose-built water flow control designed for wet-pipe and water-mist systems that require early detection at low flow rates. The VSG-4 actuates at 3 gallons per minute and mounts in 2 to 4 inch stainless steel or brass pipe for flexible installation or retrofit. An adjustable 0–90 second electronic time delay lets you tune the device to prevent false alarms while the two DPDT (form C) contacts provide reliable signaling to fire alarm, security and building management systems. Weatherproof construction and clear terminal labeling simplify installation and maintenance, and the unit’s 5-year limited warranty offers added assurance. Ideal for fire protection contractors, security integrators and facilities managers who need precise monitoring of flow conditions, the VSG-4 supports robust system integration across water flow controls, monitoring and safety applications. Specify the Potter VSG-4 for low-flow detection in new builds or upgrades to existing sprinkler and water-mist systems.

• Detects low-flow conditions reliably at 3 GPM to provide early warning for wet-pipe and water-mist fire protection systems
• Adjustable 0–90 second electronic retard reduces nuisance alarms and allows tuning to system response
• Installs easily in 2–4 in pipe runs for straightforward integration or retrofit into existing water flow controls
• Two DPDT (form C) contacts provide robust interface with fire alarm, monitoring and security control panels
• Weatherproof construction and a 5-year limited warranty deliver dependable long-term performance and reduced maintenance