{"product_id":"potter-electric-vsr-f-ex-3-vane-waterflow-switch-3-inch","title":"Potter Electric VSR-F-EX-3 Vane Waterflow Switch 3 Inch","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe Potter Electric Signal Co. US VSR-F-EX-3 is a vane-type waterflow switch designed for fire sprinkler and water-based suppression piping systems. It uses a single-pole double-throw (SPDT) switching arrangement to signal a fire alarm control panel or monitoring system when water movement is detected in the pipe. Sized for 3-inch pipe, this switch is a standard component in commercial and light industrial sprinkler installations where flow detection and alarm initiation are required. Installation is handled by licensed fire sprinkler contractors or qualified fire protection technicians.\u003c\/p\u003e\n\u003cp\u003eThe VSR-F-EX-3 is suited for use on wet-pipe sprinkler systems installed in commercial buildings, warehouses, schools, and similar occupancies. The 3-inch pipe size fits a common main or branch main configuration in mid- to large-capacity systems. Where local codes require listed waterflow detection devices, this switch provides the electrical output needed to integrate with building fire alarm systems. Consult local Authority Having Jurisdiction requirements before installation.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eVane-type flow detection for reliable waterflow sensing in sprinkler piping\u003c\/li\u003e\n  \u003cli\u003eSPDT switching output for direct connection to fire alarm control panels\u003c\/li\u003e\n  \u003cli\u003eSized for 3-inch pipe — fits common sprinkler main and branch main applications\u003c\/li\u003e\n  \u003cli\u003eDesigned for wet-pipe fire sprinkler system integration\u003c\/li\u003e\n  \u003cli\u003eSold as a single unit (each)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style waterflow detection switch for wet-pipe fire sprinkler systems using 3-inch pipe, compatible with fire alarm control panels accepting SPDT dry-contact waterflow initiating inputs.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a licensed fire sprinkler contractor in accordance with NFPA 13 and local fire code requirements. Shut off the water supply and depressurize the piping before cutting into the line to mount the switch. Electrical connections to the fire alarm control panel must comply with NFPA 72 and local AHJ requirements. Do not install on dry-pipe, preaction, or deluge systems without confirming the switch is rated for those applications.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSwitch Type\u003c\/strong\u003e: SPDT (Single-Pole Double-Throw)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDetection Method\u003c\/strong\u003e: Vane Type\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePipe Size\u003c\/strong\u003e: 3 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUnit of Measure\u003c\/strong\u003e: Each\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProduct Category\u003c\/strong\u003e: Waterflow Equipment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: Potter Electric Signal Co. US\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: VSR-F-EX-3\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"POTTER","offers":[{"title":"Default Title","offer_id":51557430067506,"sku":"VSR-F-EX-3","price":6482.48,"currency_code":"USD","in_stock":true}],"url":"https:\/\/voomisupply.com\/products\/potter-electric-vsr-f-ex-3-vane-waterflow-switch-3-inch","provider":"Voomi Supply","version":"1.0","type":"link"}