{"product_id":"4-lf709-dosy","title":"4 LF709-DOSY","description":"\u003cp\u003eThis \u003cstrong\u003e4 inch lead free double check valve backflow preventer assembly\u003c\/strong\u003e is designed to prevent the reverse flow of polluted water from entering into the \u003cstrong\u003epotable water supply\u003c\/strong\u003e due to backsiphonage and\/or backpressure.\u003c\/p\u003e\u003cp\u003eIt is ideal for protection in \u003cstrong\u003econtinuous pressure piping applications\u003c\/strong\u003e and at \u003cstrong\u003ecross-connections\u003c\/strong\u003e identified as \u003cstrong\u003enon-health hazards\u003c\/strong\u003e, where approved by the local authority having jurisdiction.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact modular design\u003c\/strong\u003e facilitates easy maintenance with a single access cover for in-line repairs.\u003c\/li\u003e\n\u003cli\u003eProvides \u003cstrong\u003emaximum flow at low pressure drop\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eFeatures \u003cstrong\u003ereplaceable check discs and seats\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo special tools\u003c\/strong\u003e are required for servicing.\u003c\/li\u003e\n\u003cli\u003eIncludes \u003cstrong\u003ecaptured spring assemblies\u003c\/strong\u003e for safety.\u003c\/li\u003e\n\u003cli\u003eApproved for \u003cstrong\u003evertical flow up installation\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eConstruction \u0026amp; Materials\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eConstructed with an \u003cstrong\u003eepoxy coated cast iron body\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eUtilizes \u003cstrong\u003eArmorTek® coating technology\u003c\/strong\u003e, a patented 3-part advanced epoxy system engineered to resist both \u003cstrong\u003emicrobial induced (MIC)\u003c\/strong\u003e and \u003cstrong\u003eexposed metal substrate corrosion\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eEquipped with \u003cstrong\u003edomestic outside stem and yoke (OSY) resilient seated gate valves\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eContains \u003cstrong\u003etwo in-line independent positive seating check modules\u003c\/strong\u003e and \u003cstrong\u003etop mounted test cocks\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eThe product is \u003cstrong\u003elead free\u003c\/strong\u003e, meaning the wetted surface contacted by consumable water contains less than 0.25% lead by weight.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Water Specialties Company","offers":[{"title":"Default Title","offer_id":49796722557205,"sku":"0792168","price":11250.65,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0874\/6506\/6773\/files\/180193.jpg?v=1772727671","url":"https:\/\/www.backflowpreventer.com\/products\/4-lf709-dosy","provider":"Water Specialties Company","version":"1.0","type":"link"}