Potter Electric Signal Co. Us VSR-F-EX-6 Waterflow Switch

Product Description

The POTTER ELECTRIC SIGNAL CO. US VSR-F-EX-6 is a vane-type waterflow switch designed for fire suppression and sprinkler system piping. It uses a single-pole double-throw (SPDT) switching mechanism to detect water movement in the pipe and send a signal to a fire alarm control panel or monitoring system. Sized for 6-inch pipe, this switch is a standard component in commercial and industrial wet-pipe sprinkler systems. Licensed fire protection contractors and sprinkler fitters install this device as part of system commissioning or replacement service.

The VSR-F-EX-6 is intended for use on 6-inch schedule pipe in wet-pipe fire sprinkler systems. It is commonly installed in commercial buildings, industrial facilities, and multi-story structures where larger-diameter mains require waterflow detection. The SPDT output allows connection to fire alarm control panels, annunciators, or supervisory circuits. This product falls within the waterflow equipment category used by fire protection professionals in both new construction and retrofit applications.

Key Features

• Vane-type detection mechanism responds to waterflow in the pipe
• SPDT switching output for connection to fire alarm or supervisory panels
• Sized specifically for 6-inch pipe installations
• Designed for wet-pipe fire suppression system applications
• Single unit per package for straightforward replacement or new installation

Compatibility

Designed as an OEM-style replacement or new-installation waterflow switch for 6-inch wet-pipe fire sprinkler system piping requiring SPDT switching output.

Installation Notes

Installation should be performed by a licensed fire protection contractor in accordance with NFPA 13 and applicable local codes. The sprinkler system must be taken out of service and water supply isolated before cutting into the pipe to mount the switch. Verify proper paddle vane size and saddle fit against the actual pipe schedule before finalizing installation. After installation, restore system pressure and perform a flow test to confirm proper switch actuation and alarm panel response.