{"product_id":"wilkins-1-420xl-pressure-vacuum-breaker-with-anti-freeze-relief-valve","title":"Wilkins 1-420XL | Pressure Vacuum Breaker with Anti-Freeze Relief Valve","description":"\u003cp\u003e\u003cstrong\u003eNOTICE:\u003c\/strong\u003e\u003cem\u003e Product images may vary from the actual item due to differences in size or configuration options.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eThe Wilkins 1-420XL is a pressure vacuum breaker assembly designed to protect potable water systems against backsiphonage with an integral anti-freeze relief valve.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\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\u003eAvailable Sizes:\u003c\/strong\u003e 3\/4 Inches, 1 Inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Working Pressure:\u003c\/strong\u003e 175 PSI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Working Temperature:\u003c\/strong\u003e 140°F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNotable Certifications:\u003c\/strong\u003e ASSE 1020, CSA B64.1.2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Connections:\u003c\/strong\u003e ANSI B1.20.1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\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\u003e34-420XL:\u003c\/strong\u003e 3\/4 Inches model size\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cu\u003eMaterials:\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCast Bronze ASTM B 584 main valve body\u003c\/li\u003e\n\u003cli\u003eSilicone elastomers (FDA Approved)\u003c\/li\u003e\n\u003cli\u003eBuna Nitrile elastomers\u003c\/li\u003e\n\u003cli\u003ePolypropylene polymers (FDA Approved)\u003c\/li\u003e\n\u003cli\u003ePOM Acetal (Delrin) polymers\u003c\/li\u003e\n\u003cli\u003ePPE (Noryl) polymers\u003c\/li\u003e\n\u003cli\u003eStainless Steel springs, 300 Series\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\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;\"\u003eLocal codes shall govern installation requirements. Unless otherwise specified, the assembly shall be installed in accordance with the manufacturers' instructions and the latest edition of the Uniform Plumbing Code. The assembly shall be mounted at a minimum of 12 inches (305mm) above the highest piping or outlet downstream of the device. Install with adequate drain and sufficient side clearance for testing and maintenance. The installation shall be made so that no part of the unit can be submerged. A pressure vacuum breaker cannot be installed where back-pressure could occur or where spillage of water from vent could cause damage.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\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;\"\u003eASSE Listed 1020; UPC Listed; CSA Certified B64.1.2; Approved by the Foundation for Cross Connection Control and Hydraulic Research at the University of Southern California; NSF\/ANSI\/CAN 372\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\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\u003eBacksiphonage Protection:\u003c\/strong\u003e The Zurn 1-420XL protects potable water supply against contamination from backsiphonage in continuous pressure applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAnti-Freeze Protection:\u003c\/strong\u003e Integral anti-freeze relief valve reduces the risk of valve damage under intermittent, non-seasonal freezing conditions for indoor or outdoor installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy Maintenance:\u003c\/strong\u003e Replaceable thermoplastic modular cartridge design allows for convenient maintenance and testing without removing the device from the line.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLead-Free Compliance:\u003c\/strong\u003e Low lead cast bronze construction meets NSF\/ANSI\/CAN 372 requirements with less than 0.25% weighted average lead content for safe potable water applications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eFAQ\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the minimum installation height requirement for the Zurn 1-420XL?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: The assembly must be mounted at a minimum of 12 inches (305mm) above the highest piping or outlet downstream of the device to ensure proper operation and protection.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can the Wilkins 1-420XL be installed where back-pressure could occur?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: No, a pressure vacuum breaker cannot be installed where back-pressure could occur or where spillage of water from the vent could cause damage. It is designed for backsiphonage protection only.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is the 1-420XL suitable for outdoor installation in freezing climates?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: Yes, the integral anti-freeze relief valve reduces the risk of valve damage under intermittent, non-seasonal freezing conditions. However, proper winterization procedures should be followed in cold climates as recommended in the installation guidelines.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv id=\"W3TucRPBpqQA9ARvwg6ni-content\"\u003e\n\u003cp\u003e\u003cspan\u003e \u003cstrong\u003eNOTICE:\u003c\/strong\u003e Do not use with water that is unsafe or of unknown quality without adequate disinfection either before or after the system. \u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003ci\u003e \"Hydrate Everyone, Everywhere!\" BottleFillingStations.com | \u003ca href=\"https:\/\/bottlefillingstations.com\/pages\/contact-us\" rel=\"noopener\" target=\"_blank\"\u003e Contact us \u003c\/a\u003e \u003c\/i\u003e\u003c\/p\u003e","brand":"Zurn Wilkins","offers":[{"title":"Default Title","offer_id":42914856501311,"sku":"1-420XL","price":331.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0793\/0985\/files\/420XL.png?v=1770567784","url":"https:\/\/bottlefillingstations.com\/products\/wilkins-1-420xl-pressure-vacuum-breaker-with-anti-freeze-relief-valve","provider":"BottleFillingStations.com","version":"1.0","type":"link"}