{"title":"Backflow Devices - Wilkins - DCVA - Double Check Valve Assemblies - 4\" - 450 Series","description":null,"products":[{"product_id":"wilkins-4-450-less-gates","title":"Wilkins 4\" 450 Less Gates","description":"\u003cp\u003eThe \u003cstrong\u003eWilkins Model 450 Double Check Valve Assembly Less Gates\u003c\/strong\u003e is designed for installation on \u003cstrong\u003epotable water lines\u003c\/strong\u003e to protect against both \u003cstrong\u003ebacksiphonage\u003c\/strong\u003e and \u003cstrong\u003ebackpressure\u003c\/strong\u003e of polluted water into the potable water supply, specifically where a potential health hazard does not exist. This 4 inch device comes without gate valves, ideal for replacement or integration with existing valves. It features an \"N\" pattern configuration and is \u003cstrong\u003eLead Free Compliant\u003c\/strong\u003e.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e\u003cem\u003eThis is a non-stock, special order item and could take up to 2 weeks or more to deliver. All non-stock items are non-refundable, please be sure you order carefully. If you have ANY questions please contact us before ordering.\u003c\/em\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eDesigned for \u003cstrong\u003elow health hazard applications\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEpoxy-coated ductile iron body\u003c\/strong\u003e and access covers for corrosion resistance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\"N\" Pattern configuration\u003c\/strong\u003e for compact installations and retrofits\u003c\/li\u003e\n\u003cli\u003ePatented, \u003cstrong\u003ecenter-stem guided Compound Check\u003c\/strong\u003e for low headloss and reliable performance\u003c\/li\u003e\n\u003cli\u003eSingle access cover for reduced maintenance downtime\u003c\/li\u003e\n\u003cli\u003eConstructed with \u003cstrong\u003estainless steel fasteners and springs\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eConnections \u0026amp; Design\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e4 inch nominal size\u003c\/li\u003e\n\u003cli\u003eFlanged end connections\u003c\/li\u003e\n\u003cli\u003eUtilizes a center stem guided design with two torsion springs to bias the check in the closed position\u003c\/li\u003e\n\u003cli\u003eChecks are accessible for maintenance without removing the device from the line\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Water Specialties Company","offers":[{"title":"Default Title","offer_id":49796786880789,"sku":"4-450","price":11325.35,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0874\/6506\/6773\/files\/182786.jpg?v=1772729841"},{"product_id":"wilkins-4-450-os-y-gate-valves","title":"Wilkins 4\" 450 OS\u0026Y Gate Valves","description":"\u003cp\u003eThe Wilkins 4\" 450 OS\u0026amp;Y Gate Valve is a \u003cstrong\u003eDouble Check Valve Assembly\u003c\/strong\u003e designed for installation on potable water lines to prevent backsiphonage and backpressure of polluted water into the potable water supply. This lead-free compliant assembly is ideal for applications where a low potential health hazard exists.\u003c\/p\u003e\u003cp\u003eFeaturing an \u003cstrong\u003en-Pattern configuration\u003c\/strong\u003e, this device is suitable for both new and retrofit installations in compact locations, supplied with \u003cstrong\u003eOS\u0026amp;Y gate valves\u003c\/strong\u003e for shut-off control.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eConstruction \u0026amp; Design\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eMain body and access covers are constructed from \u003cstrong\u003ecorrosion-resistant, epoxy-coated ductile iron\u003c\/strong\u003e (ASTM A536 Grade 4).\u003c\/li\u003e\n\u003cli\u003eFeatures a \u003cstrong\u003epatented, center-stem guided Compound Check\u003c\/strong\u003e design for low headloss and reliable performance.\u003c\/li\u003e\n\u003cli\u003eThe device is equipped with \u003cstrong\u003efull port OS\u0026amp;Y gate valves\u003c\/strong\u003e, made of epoxy-coated cast iron series 408 resilient wedge.\u003c\/li\u003e\n\u003cli\u003eA \u003cstrong\u003esingle access cover\u003c\/strong\u003e provides convenient access, reducing maintenance downtime.\u003c\/li\u003e\n\u003cli\u003eChecks are accessible for maintenance without removing the device from the line.\u003c\/li\u003e\n\u003cli\u003eIncludes \u003cstrong\u003estainless steel fasteners and springs\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eElastomers are \u003cstrong\u003eEPDM\u003c\/strong\u003e and \u003cstrong\u003eBuna Nitrile\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eThis is a non-stock, special order item and could take up to 2 weeks or more to deliver. All non-stock items are non-refundable. Please be sure you order carefully. If you have ANY questions please contact us before ordering.\u003c\/em\u003e\u003c\/p\u003e","brand":"Water Specialties Company","offers":[{"title":"Default Title","offer_id":49796787011861,"sku":"4-450OSY","price":11782.06,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0874\/6506\/6773\/files\/182794.jpg?v=1772729848"},{"product_id":"4-450-dc-di-body-bfly-grv-x-grv","title":"4 450 DC DI BODY BFLY GRV X GRV","description":"\u003cp\u003eThe Zurn Wilkins Model 450 4 inch Double Check Valve Assembly provides essential protection against backsiphonage and backpressure of polluted water in potable water lines, ideal for low health hazard applications.\u003c\/p\u003e\u003cp\u003eThis assembly features a compact n-Pattern design, making it suitable for both new and retrofit installations in tight spaces. Its patented, center-stem guided \u003cstrong\u003eCompound Check\u003c\/strong\u003e ensures reliable, superior performance with low headloss.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eDesigned for low health hazard applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact n-Pattern design\u003c\/strong\u003e ideal for for tight installations\u003c\/li\u003e\n\u003cli\u003ePatented, center-stem guided \u003cstrong\u003eCompound Check\u003c\/strong\u003e for low headloss and reliable performance\u003c\/li\u003e\n\u003cli\u003eConvenient \u003cstrong\u003esingle access cover\u003c\/strong\u003e for reduced maintenance downtime\u003c\/li\u003e\n\u003cli\u003eCorrosion-resistant \u003cstrong\u003eepoxy-coated ductile iron body\u003c\/strong\u003e and access covers\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLead-free\u003c\/strong\u003e construction\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eConnections \u0026amp; Valves\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrooved end connections\u003c\/strong\u003e for both inlet and outlet\u003c\/li\u003e\n\u003cli\u003eEquipped with \u003cstrong\u003ebutterfly valves\u003c\/strong\u003e featuring integral supervisory switches\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Water Specialties Company","offers":[{"title":"Default Title","offer_id":49796848091413,"sku":"4-450BG","price":13296.88,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0874\/6506\/6773\/files\/191319.jpg?v=1783352898"},{"product_id":"4-450-dc-di-body-n-pattern-grv-x-grv-less-gate-valves","title":"4 450 DC DI BODY,  N-PATTERN, GRV X GRV, LESS GATE VALVES","description":"\u003cp\u003eThe Zurn Wilkins Model 450 Double Check Valve Assembly is designed for installation on potable water lines to protect against both \u003cstrong\u003ebacksiphonage\u003c\/strong\u003e and \u003cstrong\u003ebackpressure\u003c\/strong\u003e of polluted water into the potable water supply. 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