{"title":"Backflow Devices - Wilkins - RPDA - Reduced Pressure Detector Assemblies - 8\" - 475STDA Series","description":null,"products":[{"product_id":"8-475-rpda-ss-body-n-pattern-bfly-grv-x-grv","title":"8 475 RPDA SS BODY N PATTERN BFLY GRV X GRV","description":"\u003cp\u003eThe Zurn Wilkins Model 475STDA is an 8 inch Stainless Steel n-Pattern Reduced Pressure Detector Assembly (RPDA) designed for fire protection systems to prevent backsiphonage and backpressure of contaminated water into the potable supply.\u003c\/p\u003e\u003cp\u003eThis backflow preventer incorporates a metered by-pass to detect leaks and unauthorized water use, and is suitable for new installations or as a direct drop-in replacement for common n-pattern valves.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eApplication \u0026amp; Use\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eProtects potable water supply from contamination due to \u003cstrong\u003ebacksiphonage\u003c\/strong\u003e and \u003cstrong\u003ebackpressure\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eSpecifically designed for use in \u003cstrong\u003efire protection systems\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eIncorporates a \u003cstrong\u003emetered by-pass\u003c\/strong\u003e to detect leaks and unauthorized water use.\u003c\/li\u003e\n\u003cli\u003eApproved for applications requiring flow vertical up and vertical down (standard), or flow vertical up and vertical up (V option).\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuperior stainless steel body\u003c\/strong\u003e resists corrosion and extends product life.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmall, compact footprint\u003c\/strong\u003e allows for direct drop-in replacement.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTime-tested check and relief valve components\u003c\/strong\u003e ensure easy maintenance and more water system uptime.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePatented compound checks\u003c\/strong\u003e provide ultra-low pressure drop as documented by approval authorities, reducing the need for a booster pump.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePatented AR spool\u003c\/strong\u003e for drop-in replacements, matching lay-lengths of common n-pattern valves.\u003c\/li\u003e\n\u003cli\u003eAR spool maintains agency approvals when installed by the factory.\u003c\/li\u003e\n\u003cli\u003eBackflow setter eliminates the need for concrete thrust blocks, allowing for easier installation and lower cost.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eMaterials\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eMain Valve Body: \u003cstrong\u003e304L Stainless Steel\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eAccess Covers: \u003cstrong\u003e304L Stainless Steel\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eInternals: \u003cstrong\u003eStainless steel, 300 Series NORYL™\u003c\/strong\u003e, NSF Listed\u003c\/li\u003e\n\u003cli\u003eFasteners \u0026amp; Springs: \u003cstrong\u003eStainless Steel, 300 Series\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eElastomers: \u003cstrong\u003eEPDM (FDA approved)\u003c\/strong\u003e, \u003cstrong\u003eBuna Nitrile (FDA approved)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003ePolymers: \u003cstrong\u003eNORYL™\u003c\/strong\u003e, NSF Listed\u003c\/li\u003e\n\u003cli\u003eSensing Line: \u003cstrong\u003eStainless steel, braided hose\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Water Specialties Company","offers":[{"title":"Default Title","offer_id":49796861657365,"sku":"8-475STDABG","price":54352.92,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0874\/6506\/6773\/files\/191500.jpg?v=1783360565"},{"product_id":"8-475-rpda-ss-body-n-pattern-osy-flg-x-flg","title":"8 475 RPDA SS BODY N PATTERN OSY FLG X FLG","description":"The Zurn Wilkins 475STDA Stainless Steel n-Pattern Reduced Pressure Detector Assembly (RPDA) 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":49796864278805,"sku":"8-475STDA","price":48161.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0874\/6506\/6773\/files\/184796.jpg?v=1772732499"}],"url":"https:\/\/www.backflowpreventer.com\/collections\/backflow-devices-wilkins-rpda-reduced-pressure-detector-assemblies-8-475stda-series.oembed","provider":"Water Specialties Company","version":"1.0","type":"link"}