{"title":"Backflow Devices - Febco - DCVA - Double Check Valve Assemblies - 10\" - 850 Series","description":null,"products":[{"product_id":"10-lf850-dnrs","title":"10 LF850-DNRS","description":"\u003cp\u003eThis \u003cstrong\u003e10 inch lead free MasterSeries® LF850 double check valve backflow preventer assembly\u003c\/strong\u003e is designed to prevent the backflow of polluted water into the potable water supply. It protects against backsiphonage and backpressure in continuous pressure piping applications and at cross-connections identified as non-health hazards.\u003c\/p\u003e\u003cp\u003eThe assembly features a compact modular design for easy in-line maintenance without special tools, making it ideal for non-toxic contaminant protection at the service line entrance.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eConstruction \u0026amp; Materials\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDuctile iron valve body design\u003c\/strong\u003e with a fused epoxy coating.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eArmorTek® coating technology\u003c\/strong\u003e, a patented 3-part advanced epoxy system, resists microbial-induced corrosion (MIC) and protects exposed metal surfaces.\u003c\/li\u003e\n\u003cli\u003eIncludes domestic \u003cstrong\u003enon-rising stem resilient seated gate valves\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eTwo in-line independent \u003cstrong\u003epositive seating check modules\u003c\/strong\u003e with \u003cstrong\u003estainless steel check components\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReversible and replaceable discs\u003c\/strong\u003e and \u003cstrong\u003efield replaceable seats\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCaptured modular spring assembly\u003c\/strong\u003e and \u003cstrong\u003ecaptured O-ring design\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClapper check assembly\u003c\/strong\u003e with commonality between 1st and 2nd check components.\u003c\/li\u003e\n\u003cli\u003eTop mounted test cocks.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIn-line serviceable assembly\u003c\/strong\u003e requires \u003cstrong\u003eno special tools\u003c\/strong\u003e for servicing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLead Free* construction\u003c\/strong\u003e (wetted surface contains less than 0.25% lead by weight).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWinterization feature\u003c\/strong\u003e with disc retainers and valve body drain ports.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Water Specialties Company","offers":[{"title":"Default Title","offer_id":49796677304597,"sku":"0683085","price":33601.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0874\/6506\/6773\/files\/178635.jpg?v=1772726370"},{"product_id":"10-lf850-osy","title":"10 LF850-OSY","description":"\u003cp\u003eThis \u003cstrong\u003eFEBCO MasterSeries LF850 10 inch Lead Free Double Check Valve Assembly\u003c\/strong\u003e is specifically designed to protect potable drinking water systems from backflow of pollutants. It effectively prevents contaminants from entering the water supply due to backsiphonage and backpressure conditions in \u003cstrong\u003enon-health hazard applications\u003c\/strong\u003e.\u003c\/p\u003e\u003cp\u003eThe assembly features a durable \u003cstrong\u003eductile iron body\u003c\/strong\u003e with flanged end connections, incorporating two in-line independent check valves, and is equipped with \u003cstrong\u003eOSY (Outside Stem and Yoke) resilient seated shutoff valves\u003c\/strong\u003e.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIn-line serviceable assembly\u003c\/strong\u003e requiring \u003cstrong\u003eno special tools\u003c\/strong\u003e for maintenance.\u003c\/li\u003e\n\u003cli\u003ePatented \u003cstrong\u003eArmorTek® 3-part advanced epoxy coating system\u003c\/strong\u003e to resist \u003cstrong\u003emicrobial-induced corrosion (MIC)\u003c\/strong\u003e and protect exposed metal substrate.\u003c\/li\u003e\n\u003cli\u003eIncludes \u003cstrong\u003eLead Free* construction\u003c\/strong\u003e to comply with low lead installation requirements (*the wetted surface of this product contacted by consumable water contains less than 0.25% of lead by weight*).\u003c\/li\u003e\n\u003cli\u003eTwo independently acting \u003cstrong\u003eclapper style check modules\u003c\/strong\u003e with \u003cstrong\u003ereplaceable stainless steel seats\u003c\/strong\u003e and \u003cstrong\u003esilicone elastomer discs\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCaptured modular spring assembly\u003c\/strong\u003e and \u003cstrong\u003ecaptured O-ring design\u003c\/strong\u003e for reliable operation.\u003c\/li\u003e\n\u003cli\u003eFeatures \u003cstrong\u003efield replaceable seats\u003c\/strong\u003e and \u003cstrong\u003ereversible, replaceable discs\u003c\/strong\u003e for extended service life.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDuctile iron valve body design\u003c\/strong\u003e for robust durability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWinterization feature\u003c\/strong\u003e with disc retainers and valve body drain ports.\u003c\/li\u003e\n\u003cli\u003eCommonality between 1st and 2nd check components simplifies parts management.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Water Specialties Company","offers":[{"title":"Default Title","offer_id":49796693950741,"sku":"0124535","price":35832.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0874\/6506\/6773\/files\/179324.jpg?v=1772726926"},{"product_id":"febco-10-lf850-nrs-gate-valves","title":"Febco 10\" LF850 NRS Gate Valves","description":"\u003cp\u003eThe \u003cstrong\u003eFebco 10 inch LF850 MasterSeries Double Check Valve Assembly\u003c\/strong\u003e with \u003cstrong\u003eNRS gate valves\u003c\/strong\u003e is designed to protect potable drinking water systems from backpressure and backsiphonage conditions in non-health hazard (pollutant) applications.\u003c\/p\u003e\u003cp\u003eThis in-line device prevents the backflow of objectionable, non-toxic pollutants into the potable water supply, making it ideal for containment at the service line entrance.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDuctile iron valve body\u003c\/strong\u003e design with \u003cstrong\u003eflanged end connections\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eIncludes \u003cstrong\u003eNRS (Non-Rising Stem) resilient wedge gate valves\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eFeatures \u003cstrong\u003eArmorTek® coating technology\u003c\/strong\u003e, a patented three-part advanced epoxy system engineered to resist electrochemical and microbial-induced corrosion.\u003c\/li\u003e\n\u003cli\u003eEquipped with two in-line independent \u003cstrong\u003estainless steel check components\u003c\/strong\u003e with \u003cstrong\u003ereplaceable seats\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eDesigned for \u003cstrong\u003ein-line serviceability\u003c\/strong\u003e without requiring special tools.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLead Free* construction\u003c\/strong\u003e, with wetted surfaces containing less than 0.25% lead by weight.\u003c\/li\u003e\n\u003cli\u003eIncorporates a \u003cstrong\u003ewinterization feature\u003c\/strong\u003e with disc retainers and valve body drain ports.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClapper check assembly\u003c\/strong\u003e and \u003cstrong\u003ecaptured O-ring design\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Water Specialties Company","offers":[{"title":"Default Title","offer_id":49796799987989,"sku":"0124532","price":33597.82,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0874\/6506\/6773\/files\/183314.jpg?v=1772730319"},{"product_id":"febco-10-lf850-os-y-gate-valves","title":"Febco 10\" LF850 OS\u0026Y Gate Valves","description":"\u003cp\u003eThe 10 inch \u003cstrong\u003eFebco LF850 MasterSeries® Double Check Valve Assembly\u003c\/strong\u003e is specifically designed to prevent the backflow of polluted water into potable water systems, protecting against both \u003cstrong\u003ebacksiphonage\u003c\/strong\u003e and \u003cstrong\u003ebackpressure\u003c\/strong\u003e conditions. This assembly is primarily used for non-health hazard (pollutant) applications, ensuring compliance with national plumbing codes and water authority requirements.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIn-line serviceable assembly\u003c\/strong\u003e requiring \u003cstrong\u003eno special tools\u003c\/strong\u003e for maintenance.\u003c\/li\u003e\n\u003cli\u003eFeatures a \u003cstrong\u003ecompact modular design\u003c\/strong\u003e with \u003cstrong\u003ecaptured spring assembly\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eIncludes \u003cstrong\u003ereusable and replaceable check discs\u003c\/strong\u003e and \u003cstrong\u003efield replaceable seats\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eConstructed with a \u003cstrong\u003eductile iron valve body design\u003c\/strong\u003e and \u003cstrong\u003estainless steel check components\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eCoated with \u003cstrong\u003eArmorTek® technology\u003c\/strong\u003e, a patented 3-part advanced epoxy system designed to resist \u003cstrong\u003emicrobial-induced corrosion (MIC)\u003c\/strong\u003e and protect exposed metal surfaces.\u003c\/li\u003e\n\u003cli\u003eEquipped with a \u003cstrong\u003ewinterization feature\u003c\/strong\u003e, including disc retainers and valve body drain cocks.\u003c\/li\u003e\n\u003cli\u003eFeatures a \u003cstrong\u003eclapper check assembly\u003c\/strong\u003e and commonality between first and second check components.\u003c\/li\u003e\n\u003cli\u003eUses \u003cstrong\u003eOS\u0026amp;Y (Outside Stem \u0026amp; Yoke) gate valves\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":49796804411669,"sku":"0683079","price":35829.41,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0874\/6506\/6773\/files\/183487.jpg?v=1772730486"},{"product_id":"febco-10-lf850-less-gates","title":"Febco 10\" LF850 Less Gates","description":"\u003cp\u003eThe Febco 10 inch LF850 MasterSeries Lead Free Double Check Valve Assembly is designed for non-health hazard applications, protecting potable water systems from backsiphonage and backpressure of pollutants that are objectionable but not toxic. This assembly is sold without shutoff valves (less gates) for integration into existing systems.\u003c\/p\u003e\u003cp\u003eThe assembly features a durable \u003cstrong\u003eductile iron body\u003c\/strong\u003e with \u003cstrong\u003eflanged end connections\u003c\/strong\u003e, and two in-line independent check valves, making it ideal for containment at the service line entrance or other non-health hazard cross-connections.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAdvanced Coating Technology\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eInternal and external surfaces are coated with \u003cstrong\u003eArmorTek®\u003c\/strong\u003e, a patented three-part advanced epoxy system.\u003c\/li\u003e\n\u003cli\u003eThis coating is engineered to reduce \u003cstrong\u003emicrobial-induced corrosion (MIC)\u003c\/strong\u003e and protect exposed metal substrates from corrosion.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eDesign and Serviceability\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIn-line serviceable assembly\u003c\/strong\u003e requiring \u003cstrong\u003eno special tools\u003c\/strong\u003e for servicing.\u003c\/li\u003e\n\u003cli\u003eFeatures a \u003cstrong\u003ecaptured modular spring assembly\u003c\/strong\u003e, \u003cstrong\u003ereversible and replaceable discs\u003c\/strong\u003e, and \u003cstrong\u003efield replaceable seats\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStainless steel check components\u003c\/strong\u003e with a \u003cstrong\u003eclapper check assembly\u003c\/strong\u003e and \u003cstrong\u003ecaptured O-ring design\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eIncludes a \u003cstrong\u003ewinterization feature\u003c\/strong\u003e with disc retainers and valve body drain ports.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003ePlease note: This 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, contact us before ordering.\u003c\/em\u003e\u003c\/p\u003e","brand":"Water Specialties Company","offers":[{"title":"Default Title","offer_id":49796812341525,"sku":"0124526","price":22403.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0874\/6506\/6773\/files\/183748.jpg?v=1772730697"}],"url":"https:\/\/www.backflowpreventer.com\/collections\/backflow-devices-febco-dcva-double-check-valve-assemblies-10-850-series.oembed","provider":"Water Specialties Company","version":"1.0","type":"link"}