{"title":"Backflow Devices - Watts - RPDA - Reduced Pressure Detector Assemblies - 8\" - 909RPDA Series","description":null,"products":[{"product_id":"8-909rpda-dosy-cfm-fs","title":"8 909RPDA-DOSY-CFM-FS","description":"\u003cp\u003eThis 8 inch reduced pressure detector backflow preventer assembly, Series 909RPDA, is designed to prevent the reverse flow of fire protection system substances into the potable water supply. 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It prevents the reverse flow of substances like glycerin wetting agents, stagnant water, and non-potable water from entering the potable water supply due to backsiphonage or backpressure.\u003c\/p\u003e\u003cp\u003eThe assembly features a modular check design for simplified maintenance and is coated with **ArmorTek®**, a patented three-part advanced epoxy system, to resist **microbial-induced corrosion (MIC)** and protect exposed metal surfaces. It is equipped with **AWWA epoxy coated, UL Classified and FM Approved OSY resilient seated gate valves**, a **GPM meter** to detect underground leaks and unauthorized water use, and ball type test cocks. A pressure differential relief valve is positioned between the check valves.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFlood Detection System\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eIncludes a **flood sensor** with **SentryPlus Alert® technology** to detect excessive water discharges from the relief valve.\u003c\/li\u003e\n\u003cli\u003eThe sensor is installed on the assembly exterior and does not affect assembly functions or certifications.\u003c\/li\u003e\n\u003cli\u003eAn add-on connection kit (sold separately) is required to activate the flood sensor. Without the kit, the sensor acts as a passive component with no communication capabilities.\u003c\/li\u003e\n\u003cli\u003eWhen activated with a connection kit, the sensor relays signals to facility personnel for corrective action, helping to limit flooding and costly damage.\u003c\/li\u003e\n\u003cli\u003eThe flood alert features can integrate with **BMS** and **cellular network communication**.\u003c\/li\u003e\n\u003cli\u003eIntegration with the **Sensor Control Monitor** enables alerts to **BAS** via **RS-485 Modbus** or the **Nexa® platform** through **Wi-Fi connectivity**.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Water Specialties Company","offers":[{"title":"Default Title","offer_id":49796774822165,"sku":"88009321","price":56502.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0874\/6506\/6773\/files\/190765.jpg?v=1781626598"},{"product_id":"8-909rpda-dosy-gpm-fs","title":"8 909RPDA-DOSY-GPM-FS","description":"\u003cp\u003eThis 8 inch Watts Series 909RPDA Reduced Pressure Detector Assembly Backflow Preventer is designed to prevent the reverse flow of fire protection system substances into the potable water supply. 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