{"product_id":"3-957-osy-fs","title":"3 957-OSY-FS","description":"\u003cp\u003eThis 3 inch \u003cstrong\u003eWatts Series 957 Reduced Pressure Zone (RPZ) backflow preventer\u003c\/strong\u003e protects potable water systems from contamination due to backsiphonage or backpressure, commonly used in health hazard applications. It is approved for \u003cstrong\u003ehorizontal installation\u003c\/strong\u003e.\u003c\/p\u003e\u003cp\u003eThe assembly features a \u003cstrong\u003eflood sensor with SentryPlus Alert technology\u003c\/strong\u003e to detect continuous discharge from the relief valve, providing notifications to facility personnel when paired with an add-on connection kit. This helps prevent flooding and costly damage.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eEquipped with a \u003cstrong\u003eflood sensor\u003c\/strong\u003e for relief valve discharge detection.\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\u003e\n\u003cstrong\u003e304 (Schedule 40) stainless steel housing and sleeve\u003c\/strong\u003e for durability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGroove couplings\u003c\/strong\u003e for integral pipeline adjustment and ease of installation.\u003c\/li\u003e\n\u003cli\u003ePatented \u003cstrong\u003etorsion spring checks\u003c\/strong\u003e engineered for lowest pressure loss.\u003c\/li\u003e\n\u003cli\u003eReplaceable \u003cstrong\u003eEPDM or silicone check disc rubber\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eBottom mounted \u003cstrong\u003ecast stainless steel relief valve\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eExtremely \u003cstrong\u003ecompact design\u003c\/strong\u003e, approximately 70% lighter than traditional models.\u003c\/li\u003e\n\u003cli\u003eAdd-on sensor connection kit enables flood alerts, compatible with BMS and cellular network communication, or integrates with BAS via RS-485 Modbus or Nexa platform via Wi-Fi.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eNote: The flood sensor does not replace compliance with installation codes, regulations, or proper drainage requirements for discharge events.\u003c\/em\u003e\u003c\/p\u003e","brand":"Water Specialties Company","offers":[{"title":"Default Title","offer_id":49796772921621,"sku":"F111585","price":8360.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0874\/6506\/6773\/files\/182204.jpg?v=1772729309","url":"https:\/\/www.backflowpreventer.com\/products\/3-957-osy-fs","provider":"Water Specialties Company","version":"1.0","type":"link"}