{"product_id":"ames-3-inch-reduced-pressure-detector-assembly-osy-valve-sku300","title":"Ames M500N 3-Inch RP Detector Assembly | OS\u0026Y","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\u003cp\u003eThe Ames Maxim M500N 3-inch reduced-pressure detector assembly is for health-hazard, non-potable service such as fire lines. It combines two independent checks and an intermediate relief valve with a metered bypass that registers water use, not electronic backflow events.\u003c\/p\u003e\u003ch2\u003eOrdering \u0026amp; Application Checks\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eMatch the full manufacturer ordering code and original nameplate, not a model-family name alone.\u003c\/li\u003e\n\u003cli\u003eConfirm the supplied end connections, orientation and included accessories.\u003c\/li\u003e\n\u003cli\u003eA component rating or approval does not certify the complete assembly or installation.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable border=\"1\" cellpadding=\"6\" cellspacing=\"0\" style=\"border-collapse:collapse;width:100%\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eDetail\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eListed Supplier SKU(s)\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003eM500NOSY-0300\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eModel \/ Listed SKU\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003eM500N; M500NOSY-0300\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eSize \/ Shutoffs\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003e3 inches; OS\u0026amp;Y gates\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eHousing \/ Sleeve\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003e304 Schedule 40 stainless steel, not a ductile-iron main body\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eMaximum Working Pressure\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003e175 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eWater Temperature\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003e33°F–110°F, not the former 140°F claim\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eConfiguration\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003eHorizontal N-pattern; verify exact external ends, accepted approvals and supplied meter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eSupervision \/ Service\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003eConfirm optional switches. Internal maintenance requires isolation; uninterrupted protected-line flow is not guaranteed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eBox Quantity\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eSubmittal \u0026amp; Installation Note:\u003c\/strong\u003e Verify application suitability and local AHJ \/ water-authority requirements against the exact manufacturer submittal. Follow the matching isolation, depressurization, installation and testing procedures. In-line service access does not guarantee uninterrupted protected-line flow. Provide drainage and service clearance where required; no universal NFPA-compliance guarantee is implied.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDocumentation:\u003c\/strong\u003e \u003ca href=\"https:\/\/www.watts.com\/dfsmedia\/0533dbba17714b1ab581ab07a4cbb521\/35106-source\/639218730220000000\/es-a-m500-m500n-m500z.pdf\"\u003eAmes M500 \/ M500N \/ M500Z specification\u003c\/a\u003e\u003c\/p\u003e","brand":"Ames","offers":[{"title":"Default Title","offer_id":46202883571960,"sku":"M500NOSY-0300","price":9470.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0682\/7183\/3336\/files\/3in_RPDA_OSY_2_1600.png?v=1791864566","url":"https:\/\/fireprotectionparts.net\/products\/ames-3-inch-reduced-pressure-detector-assembly-osy-valve-sku300","provider":"Fire Protection Parts","version":"1.0","type":"link"}