{"product_id":"ames-3-inch-reduced-pressure-backflow-preventer-os-and-y-valve-sku-0123","title":"Ames C400N 3-Inch N-Pattern Reduced-Pressure Assembly | OS\u0026Y","description":"\u003cdiv\u003e\n\u003cp\u003eThe Ames Colt C400N 3-inch reduced pressure zone assembly is designed to protect the potable water system from contamination caused by backsiphonage, backpressure, or fouling of either check valve. It uses two independent check modules, a differential pressure relief valve between and below the modules, two shutoff valves, and test cocks.\u003c\/p\u003e\n\u003cp\u003eThis is a reduced pressure zone assembly, not a detector assembly with a metered bypass. The housing and access sleeve are 304 Schedule 40 stainless steel. This is the horizontal N-pattern configuration.\u003c\/p\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eManufacturer\u003c\/th\u003e\n\u003ctd\u003eAmes Fire \u0026amp; Waterworks\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSeries \/ Configuration\u003c\/th\u003e\n\u003ctd\u003eC400N\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStore SKU\u003c\/th\u003e\n\u003ctd\u003eC400NOSY-0300\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eNominal Size\u003c\/th\u003e\n\u003ctd\u003e3 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShutoff Configuration\u003c\/th\u003e\n\u003ctd\u003eOS\u0026amp;Y shutoff valves\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHousing and Sleeve\u003c\/th\u003e\n\u003ctd\u003e304 Schedule 40 stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaximum Working Pressure\u003c\/th\u003e\n\u003ctd\u003e175 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWater Temperature Range\u003c\/th\u003e\n\u003ctd\u003e33°F to 140°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCheck Discs\u003c\/th\u003e\n\u003ctd\u003eReversible silicone or EPDM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSprings, Pins, and Fasteners\u003c\/th\u003e\n\u003ctd\u003eStainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cp\u003eShutoff valves provide isolation; they are not described as allowing service of the assembly while keeping flow through it uninterrupted. An integrated supervisory switch is an option on the OS\u0026amp;Y model, not an automatic inclusion in every assembly.\u003c\/p\u003e\n\u003cp\u003eThe linked current C400 series sheet describes a relief-valve flood sensor. Flood alerts require an additional connection kit; a sensor without that kit does not communicate with other devices. Sensor revision, connection kits, and activated alerts are not implied as included with this listing. Confirm the supplied configuration before ordering.\u003c\/p\u003e\n\u003cp\u003eConfirm the selected configuration and project requirements with the manufacturer documentation and local Authority Having Jurisdiction before ordering or installation. Consult the full installation and safety instructions, including clearance, relief-valve discharge, and drainage requirements.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eManufacturer Reference:\u003c\/strong\u003e \u003ca href=\"https:\/\/www.watts.com\/dfsmedia\/0533dbba17714b1ab581ab07a4cbb521\/627696-source\/638791074590000000\/es-a-c400-2505.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eAmes C400 Series Engineering Specification (2025, PDF)\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Ames","offers":[{"title":"Default Title","offer_id":46202882294008,"sku":"C400NOSY-0300","price":5893.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0682\/7183\/3336\/files\/3ReducedPressureAssemblyNPatternWithOSAndYValve_2.jpg?v=1791972717","url":"https:\/\/fireprotectionparts.net\/products\/ames-3-inch-reduced-pressure-backflow-preventer-os-and-y-valve-sku-0123","provider":"Fire Protection Parts","version":"1.0","type":"link"}