{"product_id":"4-lfc500n-osy-c-fs","title":"4 LFC500N-OSY-C-FS","description":"\u003cp\u003eThis Colt™ 4 inch lead free reduced pressure detector backflow preventer assembly provides crucial protection to potable water systems. It is engineered to prevent the reverse flow of non-potable fire protection substances and water from being pumped or siphoned back into the potable water supply due to backsiphonage or backpressure.\u003c\/p\u003e\u003cp\u003eThe compact modular design is approved for \u003cstrong\u003ehorizontal N pattern installation\u003c\/strong\u003e. This assembly features a \u003cstrong\u003estainless steel body\u003c\/strong\u003e with a quick access sleeve, torsion spring check valves, \u003cstrong\u003eoutside stem and yoke (OSY) resilient seated gate valves\u003c\/strong\u003e, and corrosive resistant bottom mounted pressure relief valve. It includes a \u003cstrong\u003ecubic feet per minute (CFM) meter\u003c\/strong\u003e to detect underground leaks and unauthorized water use. A built-in \u003cstrong\u003eflood sensor with SentryPlus Alert® technology\u003c\/strong\u003e detects excessive water discharges from the relief valve, and when paired with an add-on connection kit, can relay alerts for potential flooding events.\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, approximately 70% lighter than traditional designs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType 304 (Schedule 40) stainless steel\u003c\/strong\u003e housing and sleeve for durability\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGroove fittings\u003c\/strong\u003e facilitate integral pipeline adjustment\u003c\/li\u003e\n\u003cli\u003ePatented link check for \u003cstrong\u003elowest pressure loss\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eUnmatched ease of serviceability with \u003cstrong\u003ereplaceable check disc rubber\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eBottom-mounted cast stainless steel relief valve\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMetered bypass\u003c\/strong\u003e (CFM meter) to detect leakage or theft of water from the fire sprinkler system\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSensor on the relief valve for flood detection\u003c\/strong\u003e with SentryPlus Alert® technology\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlood alert feature\u003c\/strong\u003e activated by an add-on sensor connection kit (sold separately)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated supervisory switch\u003c\/strong\u003e on each gate valve of the OS\u0026amp;Y model\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Water Specialties Company","offers":[{"title":"Default Title","offer_id":49796634280213,"sku":"F0124646","price":12032.7,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0874\/6506\/6773\/files\/177171.jpg?v=1772725141","url":"https:\/\/www.backflowpreventer.com\/products\/4-lfc500n-osy-c-fs","provider":"Water Specialties Company","version":"1.0","type":"link"}