{"product_id":"wilkins-34-350xlft-34-double-check-valve-assembly-with-test-fitting","title":"Wilkins 34-350XLFT | 3\/4\" Double Check Valve Assembly with Test Fitting","description":"\u003cp\u003e\nThe Wilkins 34-350XLFT is a lead-free double check valve assembly designed for backflow protection on potable water systems where health hazards do not exist.\n\u003c\/p\u003e\n\n\u003cp\u003e \u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e\u003cu\u003eKey Specifications:\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n    \u003cstrong\u003eSize:\u003c\/strong\u003e\n    3\/4 Inches\n  \u003c\/li\u003e\n\n  \u003cli\u003e\n    \u003cstrong\u003eMaximum Working Pressure:\u003c\/strong\u003e\n    175 PSI\n  \u003c\/li\u003e\n\n  \u003cli\u003e\n    \u003cstrong\u003eMaximum Working Temperature:\u003c\/strong\u003e\n    180°F\n  \u003c\/li\u003e\n\n  \u003cli\u003e\n    \u003cstrong\u003eNotable Certifications:\u003c\/strong\u003e\n    ASSE 1015, cUPC, CSA B64.5\n  \u003c\/li\u003e\n\n  \u003cli\u003e\n    \u003cstrong\u003eEnd Connections:\u003c\/strong\u003e\n    FNPT Threaded\n  \u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e \u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e\u003cu\u003eOther Related Variants:\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n    \u003cstrong\u003e112-350XLFT:\u003c\/strong\u003e\n    1 1\/2 Inches size\n  \u003c\/li\u003e\n  \u003cli\u003e\n    \u003cstrong\u003e1-350XLFT:\u003c\/strong\u003e\n    1 Inches size\n  \u003c\/li\u003e\n  \u003cli\u003e\n    \u003cstrong\u003e2-350XLFT:\u003c\/strong\u003e\n    2 Inches size\n  \u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e \u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e\u003cu\u003eMaterials:\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eLow Lead Cast Bronze main valve body (ASTM B 584)\u003c\/li\u003e\n  \u003cli\u003eReinforced Nylon housing\u003c\/li\u003e\n  \u003cli\u003eDelrin internals\u003c\/li\u003e\n  \u003cli\u003eStainless Steel springs (300 series)\u003c\/li\u003e\n  \u003cli\u003eStainless Steel fasteners (300 series)\u003c\/li\u003e\n  \u003cli\u003eSilicone elastomers (FDA Approved)\u003c\/li\u003e\n  \u003cli\u003eBuna Nitrile elastomers (FDA Approved)\u003c\/li\u003e\n  \u003cli\u003eLow Lead Cast Bronze ball valves (ASTM B 584)\u003c\/li\u003e\n  \u003cli\u003eStainless Steel struts (300 series)\u003c\/li\u003e\n  \u003cli\u003eStainless Steel handles (200 series)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e \u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003eTypical Installation:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp style=\"background: #f8f9fb; padding: 12px 14px; margin: 0; line-height: 1.7; color: #333;\"\u003e\nDesigned for installation on potable water lines to protect against both backsiphonage and backpressure of polluted water into the water supply. The assembly shall be mounted at a minimum of 12 inches and a maximum of 30 inches above adequate drains with sufficient side clearance for testing and maintenance. If installed below grade, adequate drainage must be provided to prevent the device from being submerged. Installation must comply with local codes and the latest edition of the Uniform Plumbing Code.\n\u003c\/p\u003e\n\n\u003cp\u003e \u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003eStandards Compliance:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp style=\"background: #f8f9fb; border-left: 4px solid #1d85af; padding: 12px 14px; margin: 0; line-height: 1.7; color: #333;\"\u003e\nASSE 1015; cUPC; CSA B64.5; AWWA C510; NSF\/ANSI\/CAN 61 \u0026amp; 372; UL Classified (less shut-off valves only); C-UL Classified (less shut-off valves only); Approved by the Foundation for Cross Connection Control and Hydraulic Research at the University of Southern California\n\u003c\/p\u003e\n\n\u003cp\u003e \u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e\u003cu\u003eFeatures \u0026amp; Benefits:\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLead-Free Compliance:\u003c\/strong\u003e Meets NSF\/ANSI\/CAN 61 and 372 standards with less than 0.25% weighted average lead content for safe potable water use.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDual Backflow Protection:\u003c\/strong\u003e Protects against both backsiphonage and backpressure to ensure water supply safety in non-health hazard applications.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIntegral Test Fitting:\u003c\/strong\u003e The Zurn 34-350XLFT features a male 45° flare SAE test fitting for simplified testing and maintenance procedures.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDurable Construction:\u003c\/strong\u003e Reinforced nylon housing with stainless steel components and FDA-approved elastomers ensures long-lasting performance and reliability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e \u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003eFAQ\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e \u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What is the difference between the Wilkins 34-350XLFT and standard 350XL models?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: The 34-350XLFT includes an integral male 45° flare SAE test fitting (FT suffix), which simplifies backflow testing procedures compared to the standard model.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Can this valve be installed vertically or only horizontally?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: The Zurn 34-350XLFT is certified for both horizontal and vertical installation, providing flexibility for various plumbing configurations.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What accessories are available for this double check valve assembly?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: Available accessories include repair kits, thermal expansion tanks (Model XT), QT-SET Quick Test Fitting Sets, and winterizing blow out\/flush fittings for comprehensive system maintenance.\u003c\/p\u003e\n\n\u003cp\u003e \u003c\/p\u003e\n\n\u003cdiv id=\"W3TucRPBpqQA9ARvwg6ni-content\"\u003e\n  \u003cp\u003e\n    \u003cspan\u003e\n      \u003cstrong\u003eNOTICE:\u003c\/strong\u003e\n      Do not use with water that is unsafe or of unknown quality without adequate\n      disinfection either before or after the system.\n    \u003c\/span\u003e\n  \u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cp\u003e\n  \u003ci\u003e\n    \"Hydrate Everyone, Everywhere!\" BottleFillingStations.com |\n    \u003ca rel=\"noopener\" href=\"https:\/\/bottlefillingstations.com\/pages\/contact-us\" target=\"_blank\"\u003e\n      Contact us\n    \u003c\/a\u003e\n  \u003c\/i\u003e\n\u003c\/p\u003e","brand":"Zurn Wilkins","offers":[{"title":"Default Title","offer_id":42914903064639,"sku":"34-350XLFT","price":448.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0793\/0985\/files\/34-350XLFT_AF.jpg?v=1771051918","url":"https:\/\/bottlefillingstations.com\/products\/wilkins-34-350xlft-34-double-check-valve-assembly-with-test-fitting","provider":"BottleFillingStations.com","version":"1.0","type":"link"}