{"title":"Backflow Devices - Watts - RPZ - Reduced Pressure Zone Assemblies - 4\" - 957 Series","description":null,"products":[{"product_id":"4-957n-dosy","title":"4 957N-DOSY","description":"\u003cp\u003eThis \u003cstrong\u003e4 inch N-pattern Reduced Pressure Zone (RPZ) assembly backflow preventer\u003c\/strong\u003e provides essential protection to the potable water system, preventing contamination from backsiphonage or backpressure in accordance with national plumbing codes. 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Without it, the sensor acts as a passive component. Watts is not responsible for alert failures due to connectivity issues or improper installation.\u003c\/em\u003e\u003c\/p\u003e","brand":"Water Specialties Company","offers":[{"title":"Default Title","offer_id":49796722753813,"sku":"0113046","price":15071.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0874\/6506\/6773\/files\/180209.jpg?v=1772727680"},{"product_id":"4-957n-qt","title":"4 957N-QT","description":"\u003cp\u003eThe \u003cstrong\u003eWatts Series 957 Reduced Pressure Zone Assembly Backflow Preventer\u003c\/strong\u003e is a \u003cstrong\u003e4 inch\u003c\/strong\u003e assembly designed to protect potable water systems from contamination due to backsiphonage or backpressure.\u003c\/p\u003e\u003cp\u003eThis assembly is ideal for safeguarding continuous pressure piping applications and critical cross-connections where health hazards or other contaminants are present, meeting national plumbing codes and water authority requirements.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDesign \u0026amp; Construction\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eFeatures an \u003cstrong\u003eextremely compact design\u003c\/strong\u003e, making it significantly lighter than traditional assemblies and allowing for installation in smaller enclosures.\u003c\/li\u003e\n\u003cli\u003eConstructed with a \u003cstrong\u003e304 (Schedule 40) stainless steel housing and sleeve\u003c\/strong\u003e for durability and corrosion resistance.\u003c\/li\u003e\n\u003cli\u003eIncludes a \u003cstrong\u003equick access sleeve\u003c\/strong\u003e for enhanced serviceability.\u003c\/li\u003e\n\u003cli\u003eEquipped with \u003cstrong\u003epatented torsion spring check modules\u003c\/strong\u003e and \u003cstrong\u003ereplaceable check disc rubber\u003c\/strong\u003e for reliable performance and easy maintenance.\u003c\/li\u003e\n\u003cli\u003eFeatures a \u003cstrong\u003ecorrosive resistant stainless steel bottom mounted pressure relief valve\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eOperation \u0026amp; Installation\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eUtilizes \u003cstrong\u003equarter turn ball valve shutoffs\u003c\/strong\u003e for easy operation.\u003c\/li\u003e\n\u003cli\u003eApproved for \u003cstrong\u003ehorizontal N pattern installation\u003c\/strong\u003e, ensuring proper alignment with the direction of flow.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGroove fittings\u003c\/strong\u003e facilitate ease of installation and pipeline adjustment.\u003c\/li\u003e\n\u003cli\u003eIncludes a \u003cstrong\u003eflood sensor on the relief valve\u003c\/strong\u003e to detect excessive water discharges, signaling facility personnel for corrective action (requires add-on connection kit).\u003c\/li\u003e\n\u003c\/ul\u003e\u003cem\u003eThe flood sensor requires an add-on connection kit to be active and does not replace the need to comply with all installation, operation, and maintenance codes or to provide proper drainage.\u003c\/em\u003e","brand":"Water Specialties Company","offers":[{"title":"Default Title","offer_id":49796725670165,"sku":"0111670","price":12748.51,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0874\/6506\/6773\/files\/180335.jpg?v=1772727786"},{"product_id":"4-957-osy-fs","title":"4 957-OSY-FS","description":"\u003cp\u003eThis 4 inch reduced pressure zone assembly backflow preventer provides protection to the potable water system from contamination in accordance with national plumbing codes. 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Flood alerts are activated with an \u003cstrong\u003eadd-on sensor connection kit\u003c\/strong\u003e, compatible with BMS and cellular network communication, or the Sensor Control Monitor for integration with BAS via RS-485 Modbus or Nexa® platform via Wi-Fi.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eNotice: An add-on connection kit is required to activate the flood sensor's communication features. Without the connection kit, the sensor is a passive component.\u003c\/em\u003e\u003c\/p\u003e\u003cp\u003e\u003cem\u003e*The wetted surface of this product contacted by consumable water contains less than 0.25% of lead by weight.\u003c\/em\u003e\u003c\/p\u003e","brand":"Water Specialties Company","offers":[{"title":"Default Title","offer_id":49796763451669,"sku":"F111786","price":14670.74,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0874\/6506\/6773\/files\/181772.jpg?v=1772728949"},{"product_id":"4-957-nrs-s-fs","title":"4 957-NRS-S-FS","description":"\u003cp\u003eThe Watts Series 957 Reduced Pressure Zone assembly is a 4 inch backflow preventer designed to protect potable water systems from contamination caused by backpressure or backsiphonage in health hazard applications. This assembly features a compact design, a 304 (Schedule 40) \u003cstrong\u003estainless steel\u003c\/strong\u003e housing and sleeve, and \u003cstrong\u003enon-rising stem (NRS) resilient seated gate valves\u003c\/strong\u003e.\u003c\/p\u003e\u003cp\u003eA key component of this unit is the integrated \u003cstrong\u003eflood sensor with SentryPlus Alert® technology\u003c\/strong\u003e, which detects excessive water discharge from the relief valve. When paired with an add-on connection kit (sold separately), the sensor activates to relay alerts, helping to prevent potential flooding and costly damage. The assembly also includes a \u003cstrong\u003ecast iron flanged strainer\u003c\/strong\u003e for comprehensive system protection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eProvides protection against \u003cstrong\u003ebacksiphonage\u003c\/strong\u003e and \u003cstrong\u003ebackpressure\u003c\/strong\u003e in health hazard applications.\u003c\/li\u003e\n\u003cli\u003eIncludes an integrated \u003cstrong\u003eflood sensor with SentryPlus Alert® technology\u003c\/strong\u003e for detecting excessive water discharge.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlood alerts\u003c\/strong\u003e activated with an optional add-on sensor connection kit (compatible with BMS, cellular communication, and Nexa® platform).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e304 (Schedule 40) stainless steel housing and sleeve\u003c\/strong\u003e for durability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNon-rising stem (NRS) resilient seated gate valves\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplaceable check disc rubber\u003c\/strong\u003e for easy maintenance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtremely compact design\u003c\/strong\u003e, up to 70% lighter than traditional models.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGroove fittings\u003c\/strong\u003e allow for integral pipeline adjustment and ease of installation.\u003c\/li\u003e\n\u003cli\u003ePatented \u003cstrong\u003etorsion spring checks\u003c\/strong\u003e provide lowest pressure loss.\u003c\/li\u003e\n\u003cli\u003eBottom mounted \u003cstrong\u003ecast stainless steel relief valve\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eEquipped with a \u003cstrong\u003ecast iron flanged strainer\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuick access sleeve\u003c\/strong\u003e for unmatched ease of serviceability.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Water Specialties Company","offers":[{"title":"Default Title","offer_id":49796763648277,"sku":"F111827","price":8355.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0874\/6506\/6773\/files\/181782.jpg?v=1772728959"},{"product_id":"4-957-osy-gxg-fs","title":"4 957-OSY-GxG-FS","description":"\u003cp\u003eThe \u003cstrong\u003eWatts Series 957 Reduced Pressure Zone (RPZ) backflow preventer\u003c\/strong\u003e, 4 inch, with \u003cstrong\u003eOSY (Outside Stem and Yoke) grooved inlet and outlet gate valves\u003c\/strong\u003e, safeguards potable water systems from contamination due to backpressure or backsiphonage, particularly in health hazard applications. 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