{"product_id":"watts-957-dnrs-fs-4-part-of-the-957-series","title":"Watts 957-DNRS-FS 4 - Part of the 957 Series","description":"\u003cp\u003eThis 4 inch stainless steel reduced pressure zone assembly backflow preventer help stop the reverse flow of liquids due to backpressure or backsiphonage, where potential health hazard exists. This extremely compact and lighter than a traditional designed assembly is approved for horizontal installation in accordance with the direction of the flow arrow. This assembly consists of a stainless steel body with a quick access sleeve, torsion spring check valves, domestic resilient seated gate valves with non-rising stem, test cocks, and a corrosive resistant stainless steel bottom mounted pressure relief valve. This backflow assembly contains a flood sensor with SentryPlus Alert\u003csup\u003e®\u003c\/sup\u003e technology to detect excessive water discharges from the relief valve. When activated through an add-on sensor connection kit, the flood sensor relays a signal that triggers notification of potential flooding to service personnel. The add-on sensor connection kit is available for building management systems and cellular communication.\u003c\/p\u003e\n\n\u003cstrong\u003eFeatures\u003c\/strong\u003e\n\u003cul\u003e\n                        \u003cli\u003eFeatures a flood sensor with SentryPlus Alert technology to detect excessive water discharges from the relief valve\u003c\/li\u003e\n                        \u003cli\u003eAlert features available with add-on sensor connection kit\u003c\/li\u003e\n                        \u003cli\u003e304 (Schedule 40) stainless steel housing and sleeve\u003c\/li\u003e\n                        \u003cli\u003eUL and FM outside stem and yoke resilient seated gate valves\u003c\/li\u003e\n            \u003c\/ul\u003e\n\u003ctable\u003e\n        \u003cthead\u003e\n            \u003ctr\u003e\n                \u003cth colspan=\"2\" style=\"text-align: left;\"\u003eSpecifications\u003c\/th\u003e\n            \u003c\/tr\u003e\n        \u003c\/thead\u003e\n            \u003ctbody\u003e\n\u003ctr\u003e\n                \u003ctd\u003eArmorTek Technology\u003c\/td\u003e\n                \u003ctd\u003eNo\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n                \u003ctd\u003eBackflow Preventer Type\u003c\/td\u003e\n                \u003ctd\u003eReduced Pressure Zone Assembly\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n                \u003ctd\u003eBody Finish\u003c\/td\u003e\n                \u003ctd\u003eStainless Steel\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n                \u003ctd\u003eBody Material\u003c\/td\u003e\n                \u003ctd\u003eStainless Steel\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n                \u003ctd\u003eBody Pattern\u003c\/td\u003e\n                \u003ctd\u003eInline\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n                \u003ctd\u003eBrand\u003c\/td\u003e\n                \u003ctd\u003eWatts\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n                \u003ctd\u003eBypass\u003c\/td\u003e\n                \u003ctd\u003eNo\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n                \u003ctd\u003eBypass Size\u003c\/td\u003e\n                \u003ctd\u003eDoes Not Apply To Product\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n                \u003ctd\u003eCap And Tether\u003c\/td\u003e\n                \u003ctd\u003eNo\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n                \u003ctd\u003eDisc Material\u003c\/td\u003e\n                \u003ctd\u003eSilicone\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n                \u003ctd\u003eEAN\u003c\/td\u003e\n                \u003ctd\u003e098268503647\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n                \u003ctd\u003eElbow Fitting\u003c\/td\u003e\n                \u003ctd\u003eNo\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n                \u003ctd\u003eHazard Protection Level\u003c\/td\u003e\n                \u003ctd\u003eHealth Hazard\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n                \u003ctd\u003eHot And Harsh Water\u003c\/td\u003e\n                \u003ctd\u003eNo\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n                \u003ctd\u003eHydrant Connection\u003c\/td\u003e\n                \u003ctd\u003eNo\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n                \u003ctd\u003eInlet Connection Size\u003c\/td\u003e\n                \u003ctd\u003e4 IN\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n                \u003ctd\u003eInlet Connection Size-Metric\u003c\/td\u003e\n                \u003ctd\u003e100 MM\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n                \u003ctd\u003eInlet Connection Type\u003c\/td\u003e\n                \u003ctd\u003eFlanged Joint\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n                \u003ctd\u003eInlet Shutoff Valve Type\u003c\/td\u003e\n                \u003ctd\u003eNon Rising Stem Gate Valve\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n                \u003ctd\u003eInlet Thread Type\u003c\/td\u003e\n                \u003ctd\u003eDoes Not Apply To Product\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n                \u003ctd\u003eLead Free\u003c\/td\u003e\n                \u003ctd\u003eYes\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n                \u003ctd\u003eMaximum Temperature-Fahrenheit\u003c\/td\u003e\n                \u003ctd\u003e140\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n                \u003ctd\u003eMaximum Working Pressure-BAR\u003c\/td\u003e\n                \u003ctd\u003e12.10\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n                \u003ctd\u003eMaximum Working Pressure-PSI\u003c\/td\u003e\n                \u003ctd\u003e175\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n                \u003ctd\u003eMeter Type\u003c\/td\u003e\n                \u003ctd\u003eNo Meter\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n                \u003ctd\u003eMinimum Temperature - Celsius\u003c\/td\u003e\n                \u003ctd\u003e0.50\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n                \u003ctd\u003eMinimum Temperature-Fahrenheit\u003c\/td\u003e\n                \u003ctd\u003e33\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n                \u003ctd\u003eOutlet Connection Size\u003c\/td\u003e\n                \u003ctd\u003e4 IN\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n                \u003ctd\u003eOutlet Connection Type\u003c\/td\u003e\n                \u003ctd\u003eFlanged Joint\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n                \u003ctd\u003eOutlet Shutoff Valve Type\u003c\/td\u003e\n                \u003ctd\u003eNon Rising Stem Gate Valve\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n                \u003ctd\u003eOutlet Thread Type\u003c\/td\u003e\n                \u003ctd\u003eDoes Not Apply To Product\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n                \u003ctd\u003ePart Number\u003c\/td\u003e\n                \u003ctd\u003e\u003cspan class=\"highlight\"\u003e\u003cspan class=\"highlight\"\u003eF792321\u003c\/span\u003e\u003c\/span\u003e\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n                \u003ctd\u003ePolymer Coating\u003c\/td\u003e\n                \u003ctd\u003eNo\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n                \u003ctd\u003ePressure Operation\u003c\/td\u003e\n                \u003ctd\u003eContinuous\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n                \u003ctd\u003eProtection Type\u003c\/td\u003e\n                \u003ctd\u003eBackpressure and Backsiphonage\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n                \u003ctd\u003eSeat Material\u003c\/td\u003e\n                \u003ctd\u003eEngineered Plastic\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n                \u003ctd\u003eSeries\u003c\/td\u003e\n                \u003ctd\u003e957\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n                \u003ctd\u003eStrainer\u003c\/td\u003e\n                \u003ctd\u003eNo\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n                \u003ctd\u003eTechnologies\u003c\/td\u003e\n                \u003ctd\u003eFlood Detection\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n                \u003ctd\u003eTradename\u003c\/td\u003e\n                \u003ctd\u003eNone\u003c\/td\u003e\n            \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/media.mainlinematerials.com\/files\/es-957-2423.pdf\" target=\"_blank\"\u003eSpecification Sheet - 957\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/media.mainlinematerials.com\/files\/es-957-2423-fr-ca.pdf\" target=\"_blank\"\u003eSpecification Sheet - 957 (French)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/media.mainlinematerials.com\/files\/es-957-2423-es-mx.pdf\" target=\"_blank\"\u003eSpecification Sheet - 957 (Spanish)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/media.mainlinematerials.com\/files\/es-fs-connectionkit-2540.pdf\" target=\"_blank\"\u003eSpecification Sheet - Flood Sensor Connection Kit - Watts\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/media.mainlinematerials.com\/files\/es-fs-connectionkit-2540-fr-ca.pdf\" target=\"_blank\"\u003eSpecification Sheet - Flood Sensor Connection Kit - Watts (French)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/media.mainlinematerials.com\/files\/es-fs-connectionkit-2540-es-mx.pdf\" target=\"_blank\"\u003eSpecification Sheet - Flood Sensor Connection Kit - Watts (Spanish)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cb\u003eUPC\u003c\/b\u003e - 098268503647","brand":"Watts","offers":[{"title":"Default Title","offer_id":44887997710536,"sku":"F792321","price":19706.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0172\/0762\/3734\/files\/639004595600000000_6bf103bf-02e2-48b1-823f-0003d09cfd68.jpg?v=1767129764","url":"https:\/\/www.mainlinematerials.com\/products\/watts-957-dnrs-fs-4-part-of-the-957-series","provider":"Mainline Materials","version":"1.0","type":"link"}