{"product_id":"2-5-4000ss-dnrs-fs","title":"2.5 4000SS-DNRS-FS","description":"\u003cp\u003eThis \u003cstrong\u003e2 1\/2 inch stainless steel reduced pressure zone backflow preventer assembly\u003c\/strong\u003e is designed to prevent the reverse flow of \u003cstrong\u003econtaminated water\u003c\/strong\u003e of non-potable quality from being pumped or siphoned into the potable water supply due to \u003cstrong\u003ebacksiphonage\u003c\/strong\u003e and\/or \u003cstrong\u003ebackpressure\u003c\/strong\u003e. It is ideal for protection at \u003cstrong\u003ecross-connections\u003c\/strong\u003e identified as \u003cstrong\u003ehealth hazard\u003c\/strong\u003e applications and from other contaminants found at the service line entrance.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eFeatures a \u003cstrong\u003eflood sensor\u003c\/strong\u003e with \u003cstrong\u003eSentryPlus Alert® technology\u003c\/strong\u003e to detect continuous discharge from the relief valve.\u003c\/li\u003e\n\u003cli\u003eAn \u003cstrong\u003eadd-on sensor connection kit\u003c\/strong\u003e is available to extend flood monitoring and activate the sensor for compatible assemblies.\u003c\/li\u003e\n\u003cli\u003eIntegrates with the \u003cstrong\u003eSensor Control Monitor\u003c\/strong\u003e to deliver maintenance alerts to \u003cstrong\u003eBAS\u003c\/strong\u003e (Building Automation Systems) via \u003cstrong\u003eRS-485 Modbus\u003c\/strong\u003e or the \u003cstrong\u003eNexa® platform\u003c\/strong\u003e by \u003cstrong\u003eWi-Fi connectivity\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStainless steel construction\u003c\/strong\u003e provides long-term \u003cstrong\u003ecorrosion resistance\u003c\/strong\u003e and maximum strength.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStainless steel body\u003c\/strong\u003e is half the weight of competitive designs, reducing installation and shipping costs.\u003c\/li\u003e\n\u003cli\u003eShort end-to-end dimensions make retrofitting easy.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCam-check assembly\u003c\/strong\u003e provides maximum flow at low pressure drop.\u003c\/li\u003e\n\u003cli\u003eNo special tools required for servicing.\u003c\/li\u003e\n\u003cli\u003eCompact construction allows for smaller enclosures.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStainless steel relief valve\u003c\/strong\u003e features a balanced rolling diaphragm to eliminate sliding seals and lower maintenance costs.\u003c\/li\u003e\n\u003cli\u003eA sensor is located on the relief valve for \u003cstrong\u003eflood detection\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eFlood alert feature activated with an add-on sensor connection kit, compatible with \u003cstrong\u003eBMS\u003c\/strong\u003e and \u003cstrong\u003ecellular network communication\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eConstruction\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eThis compact and short lay length design with a single access cover consists of a lightweight \u003cstrong\u003estainless steel body\u003c\/strong\u003e, domestic \u003cstrong\u003enon-rising stem resilient seated gate valves\u003c\/strong\u003e, spring loaded \u003cstrong\u003ecam-check valves\u003c\/strong\u003e, a \u003cstrong\u003epressure differential relief valve\u003c\/strong\u003e, and \u003cstrong\u003etest cocks\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eAll internal metal parts are \u003cstrong\u003e300 Series stainless steel\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eThe main valve body is \u003cstrong\u003e300 Series stainless steel\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eThe check assembly is made of \u003cstrong\u003eNoryl®\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eThe differential relief valve is of \u003cstrong\u003estainless steel construction\u003c\/strong\u003e and utilizes a rolling diaphragm with no sliding seals.\u003c\/li\u003e\n\u003cli\u003eFlange dimensions are in accordance with \u003cstrong\u003eAWWA Class D\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eFlood Sensor System\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eThis backflow assembly contains a \u003cstrong\u003eflood sensor\u003c\/strong\u003e with \u003cstrong\u003eSentryPlus Alert® technology\u003c\/strong\u003e to detect excessive water discharges from the relief valve.\u003c\/li\u003e\n\u003cli\u003eWhen paired with an \u003cstrong\u003eadd-on connection kit\u003c\/strong\u003e, the sensor is activated to relay alerts for potential flooding events.\u003c\/li\u003e\n\u003cli\u003eConnection kit options include \u003cstrong\u003eBMS\u003c\/strong\u003e, \u003cstrong\u003ecellular communication\u003c\/strong\u003e, and the \u003cstrong\u003eSensor Control Monitor\u003c\/strong\u003e which enables integration with \u003cstrong\u003eBAS\u003c\/strong\u003e via \u003cstrong\u003eRS-485 Modbus\u003c\/strong\u003e or the \u003cstrong\u003eNexa® platform\u003c\/strong\u003e through \u003cstrong\u003eWi-Fi\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eAn \u003cstrong\u003eadd-on connection kit\u003c\/strong\u003e is required to activate the flood sensor. Without the connection kit, the flood sensor is a passive component that has no communication with any other device.\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003eUse of the flood sensor does not replace the need to comply with all required instructions, codes, and regulations related to installation, operation, and maintenance of this product, including the need to provide proper drainage in the event of a discharge.\u003c\/em\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Water Specialties Company","offers":[{"title":"Default Title","offer_id":49796644864277,"sku":"F0692730","price":7313.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0874\/6506\/6773\/files\/177660.jpg?v=1772725538","url":"https:\/\/www.backflowpreventer.com\/products\/2-5-4000ss-dnrs-fs","provider":"Water Specialties Company","version":"1.0","type":"link"}