{"product_id":"4-double-check-backflow-preventor-valve-for-fire-protection-with-fxg-osy-model","title":"4\" Double Check Backflow Preventor Valve for Fire Protection with FxG OSY Model","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe 4\" Double Check Backflow Preventor Valve with FxG OSY Model is engineered for fire protection systems requiring reliable contamination prevention. Ideal for commercial and residential fire water supply lines, this valve assembly safeguards potable water by preventing backflow while offering clear operational visibility and maintenance accessibility.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eRobust Construction\u003c\/b\u003e: The main body is made from fusion-bonded epoxy-coated ductile iron (ASTM A536), offering excellent corrosion resistance and durability in harsh fire protection environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eStainless Steel Internal Components\u003c\/b\u003e: Features 300-series stainless steel springs and fasteners designed to withstand repeated cycling without rust or mechanical fatigue, ensuring longevity and reliability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDual Stainless Steel Check Valves\u003c\/b\u003e: Provides redundant backflow prevention within a compact 4\" assembly, reducing risk of contamination from cross-connections.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFull-Port Exterior OS\u0026amp;Y Gate Valve\u003c\/b\u003e: Enables straightforward visual indication of valve position and simplifies maintenance without system shutdown, minimizing operational disruptions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCompliance and Certifications\u003c\/b\u003e: UL 1469 listed, FM approved, and ASSE 1015 compliant, meeting stringent fire protection and potable water safety standards.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSystem Compatibility\u003c\/b\u003e: Designed to meet NFPA 13 and NFPA 25 standards, equipped with pre-drilled test cocks for accurate differential pressure testing and annual inspections.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAdaptable Installation\u003c\/b\u003e: Suitable for both horizontal and vertical (upward flow) orientations, with flanged or grooved ANSI B16.1\/AWWA C606 end connections to integrate seamlessly with existing fire protection piping.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOperational Range\u003c\/b\u003e: Capable of functioning effectively under pressures up to 175 PSI and temperatures from 33°F to 140°F, covering typical municipal and private water supply conditions.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nThis backflow preventor valve ensures that fire protection systems maintain water purity by preventing reverse flow contamination, a critical concern for municipal water safety and regulatory compliance. The dual check valves enhance system reliability by providing backup protection, while the OS\u0026amp;Y gate valve design facilitates quick status checks and easy servicing, reducing downtime and maintenance complexity. Through its corrosion-resistant materials and robust certifications, the valve is suited for demanding installations such as underground vaults and mechanical rooms. By integrating this valve, system operators can confidently meet inspection standards, reduce potential health hazards, and maintain uninterrupted fire protection system readiness.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Fire Protection Parts","offers":[{"title":"Default Title","offer_id":43296159957082,"sku":"C200OS\u0026YFxG-0400","price":4478.57,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0655\/0637\/7818\/files\/4-double-check-assembly-wfxg-osy-276925.jpg?v=1777601864","url":"https:\/\/patriotsafesource.com\/products\/4-double-check-backflow-preventor-valve-for-fire-protection-with-fxg-osy-model","provider":"Patriot SafeSource","version":"1.0","type":"link"}