{"title":"Backflow Devices - Watts - RPDA - Reduced Pressure Detector Assemblies - 4\"","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":"4-957zrpda-bfg-gpm","title":"4 957ZRPDA-BFG-GPM","description":"\u003cp\u003eThis 4 inch \u003cstrong\u003ereduced pressure detector backflow preventer assembly\u003c\/strong\u003e is designed to prevent the \u003cstrong\u003ereverse flow\u003c\/strong\u003e of fire protection substances and non-potable water into the potable water supply. It protects against \u003cstrong\u003ebacksiphonage\u003c\/strong\u003e and \u003cstrong\u003ebackpressure\u003c\/strong\u003e in accordance with national plumbing codes and water authority requirements.\u003c\/p\u003e\u003cp\u003e\u003cem\u003e\u003cstrong\u003eWARNING:\u003c\/strong\u003e It is illegal to use this product in any plumbing system providing water for human consumption such as drinking or dishwashing, in the United States. Before installing standard material product, consult your local water authority, building and plumbing codes.\u003c\/em\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtremely compact design\u003c\/strong\u003e, lighter than traditional backflow preventers\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e304 (Schedule 40) stainless steel\u003c\/strong\u003e housing and sleeve for durability\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUL and FM grooved gear operated butterfly valves\u003c\/strong\u003e with tamper switch\u003c\/li\u003e\n\u003cli\u003eApproved for \u003cstrong\u003ehorizontal Z pattern installation\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eFurnished with a \u003cstrong\u003egallon per minute meter\u003c\/strong\u003e to detect underground leaks and unauthorized water use\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBottom mounted cast stainless steel relief valve\u003c\/strong\u003e for corrosion resistance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePatented torsion spring check modules\u003c\/strong\u003e for ease of serviceability and simplified maintenance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGroove couplings\u003c\/strong\u003e for ease of installation and pipeline alignment\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Water Specialties Company","offers":[{"title":"Default Title","offer_id":49796713218325,"sku":"0111808","price":14298.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0874\/6506\/6773\/files\/190628.jpg?v=1781269310"},{"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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It is ideal for continuous pressure piping applications and cross-connections identified as health hazards.\u003c\/p\u003e\u003cp\u003eThis assembly comes without shutoff valves and includes a \u003cstrong\u003egallon per minute meter\u003c\/strong\u003e for detecting underground leaks and unauthorized water use.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eConstruction \u0026amp; Design\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eFeatures \u003cstrong\u003ecast iron body construction\u003c\/strong\u003e with \u003cstrong\u003efused epoxy coating\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eUtilizes \u003cstrong\u003eArmorTek coating technology\u003c\/strong\u003e to resist corrosion of internals, limiting microbial induced corrosion (MIC) and exposed metal substrate corrosion.\u003c\/li\u003e\n\u003cli\u003eIncorporates \u003cstrong\u003ecaptured spring check valves\u003c\/strong\u003e, \u003cstrong\u003ereplaceable stainless steel seats\u003c\/strong\u003e, and top mounted test cocks.\u003c\/li\u003e\n\u003cli\u003eThe \u003cstrong\u003eair-in\/water-out relief valve design\u003c\/strong\u003e provides maximum capacity during emergency conditions.\u003c\/li\u003e\n\u003cli\u003eDesigned for \u003cstrong\u003emaximum flow at low pressure drop\u003c\/strong\u003e and offers design simplicity for easy maintenance.\u003c\/li\u003e\n\u003cli\u003eEquipped with a \u003cstrong\u003e5\/8\" x 3\/4\" (16 x 19 mm) meter\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eFlood Detection Features\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eIncludes a \u003cstrong\u003esensor on the relief valve for flood detection\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eFlood alerts are activated with an add-on sensor connection kit, compatible with BMS and cell network communication.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Water Specialties Company","offers":[{"title":"Default Title","offer_id":49796727636245,"sku":"0387209","price":16517.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0874\/6506\/6773\/files\/180432.jpg?v=1772727870"},{"product_id":"4-lf957nrpda-bfg-gpm","title":"4 LF957NRPDA-BFG-GPM","description":"\u003cp\u003eThis \u003cstrong\u003e4 inch Lead Free Reduced Pressure Detector Backflow Preventer Assembly\u003c\/strong\u003e, model LF957NRPDA-BFG-GPM, is designed to protect potable water systems from contamination due to backsiphonage and backpressure.\u003c\/p\u003e\u003cp\u003eIt is specifically engineered to prevent the reverse flow of fire protection substances and non-potable water, suitable for health hazard cross-connections like fire sprinkler systems, and includes a \u003cstrong\u003egallon per minute meter\u003c\/strong\u003e for detecting leaks and unauthorized water use.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLead Free* construction\u003c\/strong\u003e (*wetted surface contacted by consumable water contains less than 0.25% of lead by weight)\u003c\/li\u003e\n\u003cli\u003eExtremely \u003cstrong\u003ecompact design\u003c\/strong\u003e, 70% lighter than traditional designs\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e304 (Schedule 40) stainless steel housing \u0026amp; sleeve\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGroove fittings\u003c\/strong\u003e allow integral pipeline adjustment\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePatented torsion spring check\u003c\/strong\u003e provides lowest pressure loss\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnmatched ease of serviceability\u003c\/strong\u003e with \u003cstrong\u003ereplaceable check disc rubber\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eEquipped with \u003cstrong\u003eUL Classified and FM Approved grooved gear operated butterfly valves with tamper switch\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eIncludes a \u003cstrong\u003egallon per minute meter\u003c\/strong\u003e for bypass flow monitoring\u003c\/li\u003e\n\u003cli\u003eApproved for \u003cstrong\u003ehorizontal N pattern installation\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eFeatures a \u003cstrong\u003eflood sensor\u003c\/strong\u003e on the relief valve to detect excessive water discharges\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eAn add-on connection kit is required to activate the flood sensor. 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You are required to thoroughly read all installation instructions and product safety information before beginning the installation of this product.\u003c\/em\u003e\u003c\/p\u003e","brand":"Water Specialties Company","offers":[{"title":"Default Title","offer_id":49796775477525,"sku":"88009334","price":23255.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0874\/6506\/6773\/files\/182322.jpg?v=1772729415"},{"product_id":"4-909rpda-dosy-gpm-fs","title":"4 909RPDA-DOSY-GPM-FS","description":"\u003cp\u003eThis \u003cstrong\u003e4 inch reduced pressure detector backflow preventer assembly\u003c\/strong\u003e prevents the reverse flow of fire protection system substances from being pumped or siphoned into the potable water supply due to \u003cstrong\u003ebacksiphonage\u003c\/strong\u003e and or \u003cstrong\u003ebackpressure\u003c\/strong\u003e. 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