{"product_id":"6-viking-double-check-detector-valve-with-os-y-lf-system","title":"6\" Viking Double Check Detector Valve with OS\u0026Y LF System","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe 6\" Viking Double Check Detector Valve with OS\u0026amp;Y LF System is a specialized backflow prevention device designed for commercial and multi-residential fire protection systems. It ensures the safety of potable water supplies by effectively preventing contamination while providing accurate flow detection and easy maintenance within fire sprinkler networks.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eDurable Construction\u003c\/b\u003e: Made from ASTM A536 grade 65-45-12 iron, the valve body withstands mechanical stress and harsh environmental conditions common in fire protection settings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAdvanced Internal Components\u003c\/b\u003e: Stainless steel check springs paired with EPDM seals deliver consistent backflow prevention with minimal need for maintenance over the valve’s operational life.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOS\u0026amp;Y Low-Flow Gate Valve\u003c\/b\u003e: Corrosion-resistant brass and bronze construction with a non-rising stem provides reliable manual isolation, low-flow detection, and simplifies maintenance without interrupting water supply.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eRegulatory Compliance\u003c\/b\u003e: UL Listed under UL 312, FM Approved (Standard Class Number 1511), and compliant with NFPA 13 and NFPA 25 standards ensures this valve meets stringent fire sprinkler system and backflow prevention requirements.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHigh Pressure Rating\u003c\/b\u003e: Designed to support working pressures up to 175 psi (12.1 bar), aligning with typical pressures in fire sprinkler piping systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eConvenient Installation\u003c\/b\u003e: Equipped with 6-inch ANSI Class 125 flanged ends for straightforward integration into existing supply lines, facilitating efficient setup and replacement.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOptimized for Fire Protection Systems\u003c\/b\u003e: Engineered specifically to enhance reliability in cross-connection control, ensuring continuous protection during sprinkler activation and testing procedures.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nThis Viking Double Check Detector Valve provides critical protection against backflow contamination in fire protection systems, helping facility managers and engineers uphold water quality and system integrity. By integrating durable materials and precision components, it reduces risks commonly associated with fluctuating pressures and temperatures in fire suppression setups. The built-in OS\u0026amp;Y low-flow gate valve streamlines inspection and testing processes, minimizing operational downtime. Overall, it offers a dependable, code-compliant solution that supports long-term system performance and regulatory adherence in commercial and multi-residential fire sprinkler applications.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Fire Protection Parts","offers":[{"title":"Default Title","offer_id":42419433308240,"sku":"4A-60C-E3","price":6185.81,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0242\/9940\/5392\/files\/6-double-check-detector-with-osy-lf-system-3898452.jpg?v=1779399496","url":"https:\/\/shop.water-services.us\/products\/6-viking-double-check-detector-valve-with-os-y-lf-system","provider":"store.water-services.us","version":"1.0","type":"link"}