Potter VS-SP Vane Type Waterflow Alarm Switch, Small Pipe

Protect facilities with fast, reliable detection of sprinkler waterflow using the Potter Electric Signal VS-SP vane type waterflow switch. Designed for use on wet sprinkler systems, the VS-SP provides immediate indication of flow—ideal for fire protection monitoring, security integration, and building surveillance applications where rapid notification is critical. The switch features a robust die-cast metal enclosure with a factory gasket and tamper‑resistant cover screws, delivering NEMA 4/IP55 protection for indoor or outdoor placement.

The VS-SP ships standard with one set of SPDT (Form C) contacts for seamless connection to alarm panels and fire monitoring systems; an optional second contact set is available for additional control functions. UL/ULC Listing and FM Approval ensure compliance with industry standards, while compatibility with 1" to 2" (25–50mm) pipe sizes makes it suitable as a sectional flow indicator in both residential and commercial systems. Note: the VS-SP has no retard and should not be used on variable pressure supplies except for elevator recall applications.

Specify the Potter VS-SP for dependable waterflow monitoring and straightforward installation—contact your reseller or order today to improve fire system responsiveness and site safety.

• Fast, dependable sprinkler monitoring: vane-style detection provides immediate notification of water flow to protect assets and reduce downtime.
• Rugged, weatherproof construction: die-cast red housing with NEMA 4/IP55 rating and tamper‑resistant screws for reliable indoor/outdoor installation.
• Code-compliant performance: UL/ULC Listed and FM Approved to meet fire protection and building safety standards.
• Simple integration: standard SPDT (Form C) contacts and 1/2" conduit entry for easy connection to alarm panels and security/monitoring systems.
• Versatile pipe compatibility: mounts on common 1"–2" pipe sizes for use as sectional flow indicators in residential, mobile home, or large sprinkler systems.