{"product_id":"4-4000ss-dnrs-fs","title":"4 4000SS-DNRS-FS","description":"\u003cp\u003eThis \u003cstrong\u003e4 inch Ames Fire \u0026amp; Waterworks Series 4000SS Reduced Pressure Zone (RPZ) backflow preventer assembly\u003c\/strong\u003e is designed to protect potable water supplies from contamination due to backsiphonage and backpressure.\u003c\/p\u003e\u003cp\u003eIt is ideal for health-hazard cross-connections, preventing the reverse flow of non-potable water into the drinking water system in accordance with national codes.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStainless steel body\u003c\/strong\u003e construction provides long-term corrosion resistance and maximum strength, while being half the weight of competitive designs to reduce installation and shipping costs.\u003c\/li\u003e\n\u003cli\u003eFeatures \u003cstrong\u003edomestic non-rising stem resilient seated gate valves (NRS)\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eIncludes a \u003cstrong\u003eflood sensor with SentryPlus Alert® technology\u003c\/strong\u003e to detect excessive water discharges from the relief valve.\u003c\/li\u003e\n\u003cli\u003eAn add-on connection kit (sold separately) is required to activate the flood sensor, enabling alerts for potential flooding events via BMS, cellular communication, or the Sensor Control Monitor (BAS via RS-485 Modbus or Nexa® platform via Wi-Fi).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePatented cam-check assembly\u003c\/strong\u003e provides maximum flow at low pressure drop.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact construction\u003c\/strong\u003e and short end-to-end dimensions make retrofitting easy and allow 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\u003eNo special tools are required for servicing.\u003c\/li\u003e\n\u003cli\u003eIncludes a \u003cstrong\u003esingle access cover\u003c\/strong\u003e for internal part accessibility and four ball type test cocks.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Water Specialties Company","offers":[{"title":"Default Title","offer_id":49796647977237,"sku":"F0692726","price":10263.44,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0874\/6506\/6773\/files\/177766.jpg?v=1772725634","url":"https:\/\/www.backflowpreventer.com\/products\/4-4000ss-dnrs-fs","provider":"Water Specialties Company","version":"1.0","type":"link"}