{"product_id":"oatey-surevent-air-admittance-valve-160-branch-24-stack","title":"Oatey SUREVENT Air Admittance Valve 160 Branch 24 Stack","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe OATEY SUREVENT is a one-way air admittance valve designed to allow air to enter a plumbing drain system when negative pressure develops in the piping. It supports up to 160 branch drain fixture units (DFU) and 24 stack DFU, making it suitable for a wide range of residential and light commercial drain-waste-vent applications. The valve ships with a PVC Schedule 40 adapter sized to fit 1.5-inch and 2-inch drain lines. Licensed plumbers install this valve as an alternative to extending a vent pipe through the roof where conventional venting is impractical or code-permitted alternatives are acceptable.\u003c\/p\u003e\n\u003cp\u003eThis air admittance valve is used in residential and light commercial plumbing systems where negative pressure in the drain line must be relieved to prevent trap siphonage. Typical applications include island sinks, cabinet installations, remodels, and any location where running a conventional vent to open air is not feasible. The included Schedule 40 PVC adapter allows direct connection to standard 1.5-inch or 2-inch drain piping commonly found in kitchen, lavatory, and utility sink configurations.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eRated for 160 branch DFU and 24 stack DFU capacity\u003c\/li\u003e\n  \u003cli\u003eFits 1.5-inch and 2-inch drain lines via included PVC Schedule 40 adapter\u003c\/li\u003e\n  \u003cli\u003eOne-way valve operation opens under negative pressure and seals under neutral or positive pressure\u003c\/li\u003e\n  \u003cli\u003eFunctions as a code-recognized alternative to conventional through-roof venting where permitted\u003c\/li\u003e\n  \u003cli\u003eCompatible with standard PVC Schedule 40 drain-waste-vent piping systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement and new-installation air admittance valve for residential and light commercial PVC drain-waste-vent systems using 1.5-inch or 2-inch Schedule 40 piping.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation must be performed by a licensed plumber in accordance with local plumbing codes and the International Plumbing Code (IPC), which governs where air admittance valves are permitted in lieu of conventional venting. Shut off water supply and ensure the drain system is depressurized before beginning work. The valve must be installed in an accessible location, oriented vertically per manufacturer and code requirements. Do not install in locations subject to freezing or where the valve may be permanently sealed within a wall cavity without an access panel.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBranch DFU Rating\u003c\/strong\u003e: 160\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStack DFU Rating\u003c\/strong\u003e: 24\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInlet Size\u003c\/strong\u003e: 1.5 inches and 2 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAdapter Material\u003c\/strong\u003e: PVC Schedule 40\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUPC\u003c\/strong\u003e: 038753390178\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: OATEY\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: SUREVENT\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OATEY","offers":[{"title":"Default Title","offer_id":51383260840242,"sku":"SUREVENT","price":25.58,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/312671575.png?v=1782591451","url":"https:\/\/voomisupply.com\/products\/oatey-surevent-air-admittance-valve-160-branch-24-stack","provider":"Voomi Supply","version":"1.0","type":"link"}