{"product_id":"4-deringer-20x-dc","title":"4 DERINGER 20X (DC)","description":"\u003cp\u003eThe Ames Deringer™ 20X Low Head Loss Double Check Valve Assembly is a 4 inch stainless steel backflow preventer designed to safeguard potable water systems from non-health hazard pollutants caused by backpressure or backsiphonage conditions.\u003c\/p\u003e\u003cp\u003eThis assembly features integral butterfly shutoff valves with grooved ends, prewired supervisory switches, and Dual-Action™ check modules for reliable performance across varying flow rates.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOversized checks\u003c\/strong\u003e for extreme performance and \u003cstrong\u003elower head loss\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegral shutoff valves\u003c\/strong\u003e designed for indoor or outdoor application\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e100% stainless steel housing\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eTamper-resistant test cocks\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePatented Dual-action™ check modules\u003c\/strong\u003e: Poppet action at low flow and Swing action at high flow\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSilicone elastomer check discs\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrewired supervisory (alarm) switches\u003c\/strong\u003e for integral shutoff valves\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlanged adapters available\u003c\/strong\u003e for connection flexibility\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIPS grooved ends\u003c\/strong\u003e for steel pipe connections\u003c\/li\u003e\n\u003cli\u003eServiceable without special tools and approved for both horizontal and vertical applications\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eConstruction\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSingle rigid valve housing constructed entirely of \u003cstrong\u003e304 stainless steel\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eTwo independent \u003cstrong\u003eDual-action check modules\u003c\/strong\u003e and two integral resiliently seated shutoff valves\u003c\/li\u003e\n\u003cli\u003eIntegral shutoff valves include \u003cstrong\u003eprewired supervisory tamper switches\u003c\/strong\u003e within a weatherproof actuator housing\u003c\/li\u003e\n\u003cli\u003eChecks use replaceable \u003cstrong\u003esilicone elastomer sealing discs\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSingle full access service port and cover with an in-line replaceable elastomer seal\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eOperation\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eOperates as a \u003cstrong\u003e\"poppet style\" check\u003c\/strong\u003e under low flow conditions\u003c\/li\u003e\n\u003cli\u003eOperates as a \u003cstrong\u003e\"swing style\" check\u003c\/strong\u003e under high flow conditions\u003c\/li\u003e\n\u003cli\u003eDesigned for \u003cstrong\u003econtinuous pressure service\u003c\/strong\u003e against backpressure and backsiphonage\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Water Specialties Company","offers":[{"title":"Default Title","offer_id":49796657348885,"sku":"D-4020X","price":5890.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0874\/6506\/6773\/files\/178035.jpg?v=1772725883","url":"https:\/\/www.backflowpreventer.com\/products\/4-deringer-20x-dc","provider":"Water Specialties Company","version":"1.0","type":"link"}