{"title":"Backflow Devices - Wilkins - DCDA - Double Check Detector Assemblies - 4\" - 450STDA Series","description":null,"products":[{"product_id":"4-450-dcda-ss-body-n-pattern-bfly-grv-x-grv","title":"4 450 DCDA SS BODY N PATTERN BFLY GRV X GRV","description":"\u003cp\u003eThis Zurn Wilkins Model 450STDA is a 4-inch Double Check Detector Assembly (DCDA) designed for installation on water lines in \u003cstrong\u003efire protection systems\u003c\/strong\u003e. It prevents the backflow and backsiphonage of polluted water into potable water supplies where a potential health hazard does not exist.\u003c\/p\u003e\u003cp\u003eThe assembly incorporates a \u003cstrong\u003emetered bypass\u003c\/strong\u003e to detect leaks and monitor unauthorized water use. Its superior \u003cstrong\u003e304L stainless steel body\u003c\/strong\u003e resists corrosion, extending the product's life, and its compact footprint allows for direct drop-in replacement.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eApplication \u0026amp; Features\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eDesigned for \u003cstrong\u003enew installations\u003c\/strong\u003e or as a \u003cstrong\u003edirect drop-in replacement\u003c\/strong\u003e for competitor valves.\u003c\/li\u003e\n\u003cli\u003eProtects against backflow and backsiphonage of polluted water.\u003c\/li\u003e\n\u003cli\u003eFeatures a \u003cstrong\u003emetered by-pass\u003c\/strong\u003e assembly for leak detection and monitoring water use.\u003c\/li\u003e\n\u003cli\u003ePatented \u003cstrong\u003eAR spool\u003c\/strong\u003e allows for flexible drop-in replacements, matching lay-lengths of common n-pattern valves while maintaining agency approvals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePatented compound checks\u003c\/strong\u003e provide ultra-low pressure drop, potentially reducing the need for a booster pump.\u003c\/li\u003e\n\u003cli\u003eSupplied with \u003cstrong\u003egrooved end butterfly valves\u003c\/strong\u003e that include integral supervisory switches.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eConstruction Materials\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eMain valve body and access covers made from \u003cstrong\u003e304L Stainless Steel\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eInternals are Stainless steel and NORYL™, NSF Listed.\u003c\/li\u003e\n\u003cli\u003eFasteners and springs are Stainless Steel, 300 Series.\u003c\/li\u003e\n\u003cli\u003eSeal ring is \u003cstrong\u003eEPDM (FDA approved)\u003c\/strong\u003e and O-ring is \u003cstrong\u003eBuna Nitrile (FDA approved)\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Water Specialties Company","offers":[{"title":"Default Title","offer_id":49796848648469,"sku":"4-450STDABG","price":14503.52,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0874\/6506\/6773\/files\/191327.jpg?v=1783353518"},{"product_id":"4-450-dcda-ss-body-n-pattern-osy-flg-x-flg","title":"4 450 DCDA SS BODY N PATTERN OSY FLG X FLG","description":"The Zurn Wilkins 450STDA Stainless Steel n-Pattern Double Check Detector Assembly (DCDA) withstands the corrosive effects of water and is ideal for new or direct drop-in replacement delivering convenience without compromise. For fire protection applications , with a metered by-pass to detect leaks and other water use.","brand":"Water Specialties Company","offers":[{"title":"Default Title","offer_id":49796857692437,"sku":"4-450STDA","price":14506.62,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0874\/6506\/6773\/files\/191252.jpg?v=1783351119"}],"url":"https:\/\/www.backflowpreventer.com\/collections\/backflow-devices-wilkins-dcda-double-check-detector-assemblies-4-450stda-series.oembed","provider":"Water Specialties Company","version":"1.0","type":"link"}