Potter Electric VSR-2 Waterflow Switch 2 Inches

Product Description

The POTTER ELECTRIC SIGNAL CO. US VSR-2 is a 2-inch waterflow switch designed to detect water movement in wet-pipe fire sprinkler systems. When flow occurs, the device signals the fire alarm control panel, initiating the appropriate alarm sequence. It installs directly into the sprinkler system piping and is typically handled by licensed fire protection or sprinkler system contractors. The VSR-2 is sized for 2-inch pipe and is built for reliable service in commercial and residential fire protection applications.

The VSR-2 is suited for installation on 2-inch schedule 10 or schedule 40 steel sprinkler pipe in wet-pipe fire sprinkler systems. It is commonly used in commercial buildings, multi-family residential properties, and light industrial facilities where NFPA 13 or NFPA 13R compliant sprinkler systems are required. The device serves as a critical initiating device, providing early notification of waterflow to monitoring and alarm systems.

Key Features

• Sized for 2-inch sprinkler pipe installations
• Detects waterflow to trigger fire alarm notification
• Designed for wet-pipe fire sprinkler system applications
• Sold as a single unit (each)

Compatibility

Designed as an OEM-style waterflow switch for installation on 2-inch wet-pipe fire sprinkler system piping in commercial and residential applications.

Installation Notes

Installation should be performed by a licensed fire protection sprinkler contractor in accordance with NFPA 13, NFPA 72, and applicable local codes. Shut down the sprinkler system water supply and relieve system pressure before beginning any work on the piping. Low-voltage wiring connections to the fire alarm control panel must comply with NEC Article 760. Do not install on dry-pipe, pre-action, or deluge systems unless the manufacturer documentation confirms compatibility.