{"product_id":"4-lfc500-dosy-lm-fs","title":"4 LFC500-DOSY-LM-FS","description":"This Colt™ 4 inch Lead Free 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 due to backsiphonage and\/or backpressure. It is ideal for protection at cross-connections identified as health hazards, such as on fire sprinkler systems and from other contaminants found at the service line entrance.\u003cp\u003eThis compact modular design consists of a stainless steel body with a quick access sleeve, link check valves, domestic outside stem and yoke (OSY) resilient seated gate valves, test cocks, and a corrosive resistant bottom-mounted pressure relief valve. The assembly comes furnished with a bypass without a meter to detect underground leaks and unauthorized water use. This backflow assembly contains a flood sensor with SentryPlus Alert® technology to detect excessive water discharges from the relief valve. When paired with an add-on connection kit, the sensor is activated to relay alerts for potential flooding events.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eProvides protection to the potable water system from contamination in accordance with national plumbing codes\u003c\/li\u003e\n\u003cli\u003eUtilized in health-hazard applications to protect against backsiphonage, backpressure, and the fouling of either check valve\u003c\/li\u003e\n\u003cli\u003eFeatures \u003cstron\u003eLead Free\u003c\/stron\u003e* construction to comply with Lead Free* installation requirements\u003c\/li\u003e\n\u003cli\u003eIncludes a \u003cstron\u003eflood sensor\u003c\/stron\u003e with \u003cstron\u003eSentryPlus Alert® technology\u003c\/stron\u003e to detect continuous discharge from the relief valve\u003c\/li\u003e\n\u003cli\u003eFlood sensor relays a signal that triggers a multichannel alert (call, email, text) to notify personnel about potential flooding (with add-on sensor connection kit)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstron\u003eExtremely compact design\u003c\/stron\u003e and 70% lighter than traditional designs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstron\u003eType 304 (Schedule 40) stainless steel\u003c\/stron\u003e housing and sleeve\u003c\/li\u003e\n\u003cli\u003e\n\u003cstron\u003eGroove fittings\u003c\/stron\u003e for integral pipeline adjustment\u003c\/li\u003e\n\u003cli\u003e\n\u003cstron\u003ePatented link check\u003c\/stron\u003e for lowest pressure loss\u003c\/li\u003e\n\u003cli\u003e\n\u003cstron\u003eUnmatched ease of serviceability\u003c\/stron\u003e with replaceable check disc rubber\u003c\/li\u003e\n\u003cli\u003eAvailable with domestic \u003cstron\u003eOSY resilient seated gate valves\u003c\/stron\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cstron\u003eBottom-mounted cast stainless steel relief valve\u003c\/stron\u003e\u003c\/li\u003e\n\u003cli\u003eBypass without a meter to detect leakage or theft of water from the fire sprinkler system\u003c\/li\u003e\n\u003cli\u003eIncludes an integrated supervisory switch as an option on each gate valve of the OS\u0026amp;Y model\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eAn add-on connection kit is required to activate the flood sensor. Without the connection kit, the flood sensor is a passive component and will not communicate with any other device.\u003c\/em\u003e\u003c\/p\u003e","brand":"Water Specialties Company","offers":[{"title":"Default Title","offer_id":49796638310677,"sku":"F0425255","price":12128.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0874\/6506\/6773\/files\/185204.jpg?v=1773071655","url":"https:\/\/www.backflowpreventer.com\/products\/4-lfc500-dosy-lm-fs","provider":"Water Specialties Company","version":"1.0","type":"link"}