{"title":"Backflow Devices - Watts - RPDA - Reduced Pressure Detector Assemblies","description":null,"products":[{"product_id":"4-lf957zrpda-osy-gpm","title":"4 LF957ZRPDA-OSY-GPM","description":"\u003cp\u003eThis 4 inch Lead Free Reduced Pressure Detector Backflow Preventer Assembly with OSY Shutoff Valves and a Gallons\/Minute Meter is designed to protect potable water systems from contamination due to backsiphonage and backpressure, in accordance with national plumbing codes.\u003c\/p\u003e\u003cp\u003eIt is commonly used in health hazard applications, such as on fire sprinkler systems, and to monitor unauthorized water use or detect leakage.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eConstruction \u0026amp; Design\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eFeatures a \u003cstrong\u003e304 (Schedule 40) stainless steel housing and sleeve\u003c\/strong\u003e for durability.\u003c\/li\u003e\n\u003cli\u003eUtilizes \u003cstrong\u003etwo independent torsion spring check modules\u003c\/strong\u003e and a differential pressure relief valve.\u003c\/li\u003e\n\u003cli\u003eIncludes \u003cstrong\u003eUL Classified and FM Approved outside stem and yoke (OSY) resilient seated gate valves\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eThe assembly is \u003cstrong\u003eextremely compact\u003c\/strong\u003e and approximately 70% lighter than traditional designs.\u003c\/li\u003e\n\u003cli\u003eApproved for \u003cstrong\u003ehorizontal Z-pattern installation\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eEquipped with \u003cstrong\u003egroove fittings\u003c\/strong\u003e for integral pipeline adjustment and ease of serviceability.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003ePerformance \u0026amp; Features\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eThe \u003cstrong\u003epatented torsion spring check\u003c\/strong\u003e design ensures the lowest pressure loss and drip-tight closure against reverse flow.\u003c\/li\u003e\n\u003cli\u003eA \u003cstrong\u003egallons per minute meter\u003c\/strong\u003e is furnished to detect underground leaks and unauthorized water usage from the fire sprinkler system.\u003c\/li\u003e\n\u003cli\u003eIncludes a \u003cstrong\u003eflood sensor on the relief valve\u003c\/strong\u003e to detect excessive water discharges, providing an alert for facility personnel. \u003cem\u003eAn add-on connection kit is required to activate the flood sensor's communication features; without it, the sensor is passive.\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLead Free* construction\u003c\/strong\u003e ensures the wetted surface contains less than 0.25% of lead by weight.\u003c\/li\u003e\n\u003cli\u003eFeatures \u003cstrong\u003ereversible elastomer check discs\u003c\/strong\u003e for extended service life.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Water Specialties Company","offers":[{"title":"Default Title","offer_id":49796712628501,"sku":"0124753","price":13915.65,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0874\/6506\/6773\/files\/184951.jpg?v=1772727426"},{"product_id":"3-957nrpda-osy-gpm","title":"3 957NRPDA-OSY-GPM","description":"\u003cp\u003eThis 3 inch reduced pressure detector backflow preventer assembly is designed to prevent the reverse flow of fire protection substances and water of non-potable quality from being pumped or siphoned into the potable water supply. 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Before installing standard material product, consult your local water authority, building and plumbing codes.\u003c\/em\u003e\u003c\/p\u003e","brand":"Water Specialties Company","offers":[{"title":"Default Title","offer_id":49796713775381,"sku":"0111653","price":20554.53,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0874\/6506\/6773\/files\/190629.jpg?v=1781269404"},{"product_id":"8-957zrpda-dosy-gpm","title":"8 957ZRPDA-DOSY-GPM","description":"8 In SS Reduced Pressure Detector Assembly Backflow Preventer, Domestic OSY Shutoff Valves, Gallons\/Minute Meter, Z Pattern","brand":"Water Specialties Company","offers":[{"title":"Default Title","offer_id":49796714594581,"sku":"0113106","price":29934.47,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0874\/6506\/6773\/files\/179994.jpg?v=1772727501"},{"product_id":"10-957zrpda-osy-gpm","title":"10 957ZRPDA-OSY-GPM","description":"10 In SS Reduced Pressure Detector Assembly Backflow Preventer, OSY Shutoff Valves, Gallons\/Minute Meter, Z Pattern","brand":"Water Specialties Company","offers":[{"title":"Default Title","offer_id":49796714987797,"sku":"0111655","price":35477.24,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0874\/6506\/6773\/files\/190630.jpg?v=1781271275"},{"product_id":"6-957zrpda-dosy-gpm","title":"6 957ZRPDA-DOSY-GPM","description":"6 In SS Reduced Pressure Detector Assembly Backflow Preventer, Domestic OSY Shutoff Valves, Gallons\/Minute Meter, Z Pattern","brand":"Water Specialties Company","offers":[{"title":"Default Title","offer_id":49796715643157,"sku":"0113075","price":23223.43,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0874\/6506\/6773\/files\/180046.jpg?v=1772727551"},{"product_id":"4-994rpda-lf-gpm","title":"4 994RPDA-LF-GPM","description":"\u003cp\u003eThis \u003cstrong\u003e4 inch reduced pressure detector backflow preventer\u003c\/strong\u003e, assembled \u003cstrong\u003ewithout shutoff valves\u003c\/strong\u003e, is designed to prevent the reverse flow of \u003cstrong\u003efire protection substances\u003c\/strong\u003e and non-potable water into the potable water supply. It protects against backsiphonage and backpressure in accordance with national plumbing codes and water authority requirements.\u003c\/p\u003e\u003cp\u003eThis assembly features a compact modular design for easy maintenance with a single access cover, making it ideal for continuous pressure piping applications and cross-connections identified as health hazards.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eConstruction \u0026amp; Design\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStainless steel body\u003c\/strong\u003e for long term corrosion resistance and maximum strength\u003c\/li\u003e\n\u003cli\u003eHalf the weight of competitive designs, reducing installation and shipping costs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShort end-to-end dimensions\u003c\/strong\u003e for easy retrofit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBottom mounted relief valve\u003c\/strong\u003e reduces clearance requirements when installed against an outside wall\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTorsion spring check valves\u003c\/strong\u003e provide maximum flow at low pressure drop\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermoplastic and stainless steel check valves\u003c\/strong\u003e with stainless steel hinge pins for trouble-free operation\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\u003eCompact construction allows for smaller enclosures\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eMonitoring \u0026amp; Detection\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eDetects \u003cstrong\u003eunderground leaks\u003c\/strong\u003e and unauthorized water use\u003c\/li\u003e\n\u003cli\u003eFurnished with a \u003cstrong\u003eGallons Per Minute (GPM) meter\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eIncludes a \u003cstrong\u003esensor on the relief valve for flood detection\u003c\/strong\u003e to trigger alerts when activated by an add-on connection kit.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eAn add-on connection kit is required to activate the flood sensor; without this kit, the sensor is a passive component and does not communicate with other devices.\u003c\/em\u003e\u003c\/p\u003e","brand":"Water Specialties Company","offers":[{"title":"Default Title","offer_id":49796721770773,"sku":"0438055","price":10782.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0874\/6506\/6773\/files\/180159.jpg?v=1772727643"},{"product_id":"4-957zrpda-osy-gpm","title":"4 957ZRPDA-OSY-GPM","description":"\u003cp\u003eThis \u003cstrong\u003eWatts Series 957ZRPDA Reduced Pressure Detector Assembly\u003c\/strong\u003e is a \u003cstrong\u003e4-inch backflow preventer\u003c\/strong\u003e designed to protect potable water systems from contamination due to backsiphonage and backpressure, specifically in \u003cstrong\u003efire protection systems\u003c\/strong\u003e.\u003c\/p\u003e\u003cp\u003eIt prevents the reverse flow of non-potable substances into the water supply, meeting national plumbing codes and water authority requirements. 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Before installing standard material product, consult your local water authority, building and plumbing codes.\u003c\/em\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eConstruction \u0026amp; Features\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eFeatures an \u003cstrong\u003eextremely compact design\u003c\/strong\u003e that is \u003cstrong\u003e70% lighter\u003c\/strong\u003e than traditional models, allowing for use in smaller enclosures.\u003c\/li\u003e\n\u003cli\u003eThe assembly consists of a \u003cstrong\u003e304 (Schedule 40) stainless steel housing and sleeve\u003c\/strong\u003e with groove end connections for integral pipeline adjustment.\u003c\/li\u003e\n\u003cli\u003eTwo independent \u003cstrong\u003etorsion spring check modules\u003c\/strong\u003e with patented torsion spring checks provide the \u003cstrong\u003elowest pressure loss\u003c\/strong\u003e and drip-tight closure against reverse flow.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReversible silicone or EPDM check disc rubber\u003c\/strong\u003e ensures unmatched ease of serviceability.\u003c\/li\u003e\n\u003cli\u003eIncludes a \u003cstrong\u003ebottom-mounted cast stainless steel relief valve\u003c\/strong\u003e, designed for corrosion resistance.\u003c\/li\u003e\n\u003cli\u003eThe bypass line is furnished with a \u003cstrong\u003ecubic feet per minute meter\u003c\/strong\u003e to detect underground leaks and unauthorized water use from the fire sprinkler system.\u003c\/li\u003e\n\u003cli\u003eEquipped with \u003cstrong\u003eUL Classified and FM Approved outside stem and yoke (OSY) resilient seated gate valves\u003c\/strong\u003e for reliable shutoff.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eAdvanced Flood Detection\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eA \u003cstrong\u003eflood sensor with SentryPlus Alert® technology\u003c\/strong\u003e is integrated on the relief valve to detect excessive water discharges.\u003c\/li\u003e\n\u003cli\u003eThe sensor relays signals to facility personnel for corrective action, limiting flooding and costly damage.\u003c\/li\u003e\n\u003cli\u003eFor active flood alerts, an \u003cstrong\u003eadd-on sensor connection kit is required\u003c\/strong\u003e to activate the sensor's communication capabilities.\u003c\/li\u003e\n\u003cli\u003eConnection kit options include compatibility with \u003cstrong\u003eBMS, cellular communication, or the Sensor Control Monitor\u003c\/strong\u003e for integration with BAS via RS-485 Modbus or the Nexa® platform via Wi-Fi.\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003eNote: Use 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":49796774002965,"sku":"F111636","price":29933.88,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0874\/6506\/6773\/files\/182258.jpg?v=1772729352"},{"product_id":"4-994rpda-lf-cfm-fs","title":"4 994RPDA-LF-CFM-FS","description":"\u003cp\u003eThe 4 inch Watts Series 994RPDA Reduced Pressure Detector Assembly Backflow Preventer is designed for health hazard applications to prevent the reverse flow of liquids due to backpressure or backsiphonage into the potable water supply. This assembly includes a flood sensor with SentryPlus Alert® technology to detect excessive water discharges from the relief valve.\u003c\/p\u003e\u003cp\u003eThis compact modular design features a short lay length stainless steel body and is assembled without shutoff valves, facilitating easy maintenance with a single access cover for in-line repairs.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStainless steel construction\u003c\/strong\u003e provides long term corrosion resistance 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\u003e\n\u003cstrong\u003eShort end-to-end dimensions\u003c\/strong\u003e make retrofit easy.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBottom mounted relief valve\u003c\/strong\u003e reduces clearance requirements when installed against an outside wall.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTorsion spring check valves\u003c\/strong\u003e provide maximum flow at low pressure drop.\u003c\/li\u003e\n\u003cli\u003eThermoplastic and \u003cstrong\u003estainless steel check valves\u003c\/strong\u003e for trouble-free operation.\u003c\/li\u003e\n\u003cli\u003eNo special tools required for servicing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact construction\u003c\/strong\u003e 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\u003eDetects \u003cstrong\u003eunderground leaks\u003c\/strong\u003e and unauthorized water use.\u003c\/li\u003e\n\u003cli\u003eCubic foot per minute (\u003cstrong\u003eCFM) meter\u003c\/strong\u003e included.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlood sensor\u003c\/strong\u003e on relief valve for flood detection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlood alert feature\u003c\/strong\u003e activated with add-on sensor connection kit, compatible with BMS and cellular network communication.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eAn add-on sensor connection kit is required to activate the flood sensor's communication features; without it, the sensor is passive. Watts is not responsible for alert failures due to connectivity issues, power outages, or improper installation.\u003c\/em\u003e\u003c\/p\u003e","brand":"Water Specialties Company","offers":[{"title":"Default Title","offer_id":49796774035733,"sku":"F438054","price":10782.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0874\/6506\/6773\/files\/182257.jpg?v=1772729354"}],"url":"https:\/\/www.backflowpreventer.com\/collections\/backflow-devices-watts-rpda-reduced-pressure-detector-assemblies.oembed?page=6","provider":"Water Specialties Company","version":"1.0","type":"link"}