{"product_id":"improved-racing-high-flow-flapper-check-valve-12-body-8an-male","title":"Improved Racing - High Flow Flapper Check Valve, -12 Body, -8AN Male","description":"\u003cul\u003e\n\u003cli\u003eHigh flow, low cracking pressure flapper style check valve in -12 housing size.\u003c\/li\u003e\n\u003cli\u003e0.05 PSI cracking pressure.\u003c\/li\u003e\n\u003cli\u003e300+ psi max operating backflow holding pressure, 1,000+ psi max operating pressure in normal direction of flow.\u003c\/li\u003e\n\u003cli\u003eFKM seals are compatible with most automotive fluids and gases.\u003c\/li\u003e\n\u003cli\u003e-4°F to +392°F (-20°C to +200°C) operating temperature range.\u003c\/li\u003e\n\u003cli\u003eExceeds most military specification requirements.\u003c\/li\u003e\n\u003cli\u003eMade in USA.\u003c\/li\u003e\n\u003cli\u003eLifetime Warranty.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"data item content allow\" aria-labelledby=\"tab-label-description\" id=\"description\" data-role=\"content\" role=\"tabpanel\" aria-hidden=\"false\"\u003e\n\u003cdiv class=\"product attribute description\"\u003e\n\u003cdiv class=\"value\"\u003e\n\u003ch2\u003eA Precision Check Valve that Exceeds Military Specifications\u003c\/h2\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eImproved Racing's patent-pending FCV-12 series check \u003cspan\u003evalves are an excellent choice for oiling systems, cooling systems, fuel systems, and crankcase ventilation systems in turbocharged engines. These valves \u003c\/span\u003eoutperform by every measure:\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eUltra-low flow restriction.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eExtremely low cracking pressure.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eVery high holding pressure.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eRobust stainless steel and anodized aluminum construction.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFKM seals for compatibility with most fluids and operating temperatures up to 392°F (200°C).\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eNear-zero leak rate.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eUltra-Low Flow Restriction\u003c\/h2\u003e\n\u003cp\u003eMost check valve designs - including poppet check valves, ball check valves, diaphragm check valves, piston check valves, and others - are restrictive, resulting in a pressure drop across the valve even when fully open.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eImproved Racing's check valves use a flapper design, originally developed for military jet engine turbines, that swings completely out of the fluid's flow path, adding virtually no flow restriction. These check valves were further optimized for low restriction at high flow rates using flow simulation software and were designed to exceed most military specification requirements.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0629\/9556\/2683\/files\/FCV-12-12AM-flow-sim.gif?v=1769435569\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003eImproved Racing's patent-pending design incorporates innovations that allow the swinging door design to be implemented in a compact valve size using small components.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0629\/9556\/2683\/files\/FCV-12-12AM_Closed_V2.jpg?v=1769435594\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0629\/9556\/2683\/files\/FCV-12-12AM_Open_Diagram_Description.jpg?v=1769435611\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch2\u003eLow Cracking Pressure\u003c\/h2\u003e\n\u003cp\u003eThis flapper style valve has a very low cracking pressure of less than 0.05 psi, making it ideal for applications such as PCV systems. Higher cracking pressures are also possible by replacing the torsion spring.\u003c\/p\u003e\n\u003ch2\u003eHigh Holding Pressure\u003c\/h2\u003e\n\u003cp\u003eThe valves have been tested to 1,000 psi of checked holding pressure without catastrophic failures or excessive leakage. This allows us to conservatively rate these valves to hold 300+ psi of checked pressure under normal operating conditions. For comparison, the military-grade check valves we tested failed catastrophically with complete pressure loss at less than 200 psi.\u003c\/p\u003e\n\u003ch2\u003eConstructed from Durable Materials\u003c\/h2\u003e\n\u003cp\u003eEvery internal component (hinge, spring, hinge pin, and gasket core) is made from stainless steel to ensure long lasting, reliable performance and compatibility with just about any fluid, including corrosive fluids. \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThe check valve's gasket is made from FKM (Viton®) rubber bonded to a stainless steel core, giving it a high operating temperature of up to 392°F (200°C). It's also highly chemical resistant and compatible with practically all fuel types, engine oil, glycol, and more.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0629\/9556\/2683\/files\/FCV-12-12AM_Closed_Diagram.jpg?v=1769435641\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch2\u003eNear-Zero Leak Rate\u003c\/h2\u003e\n\u003cp\u003eUnlike typical valves with an all-metal construction, Improved Racing's valves provide a near-zero leak rate thanks to the FKM (Viton®) rubber seal. This means your engine will receive fuel or oil pressure immediately with no priming required.\u003c\/p\u003e\n\u003ch2\u003eMultiple Sizes Available\u003c\/h2\u003e\n\u003cp\u003eImproved Racing's check valves are available in multiple fitting sizes, and the inlet and outlet halves can be mixed and matched to create a completely custom valve in a compact space.\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eFeatures and Specifications\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eFlapper design allows for very high flow with low restriction.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDesign optimized using flow simulation software.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFKM rubber seals are compatible with most automotive fluids and gases.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAll stainless steel internal components for compatibility with a wide range of fluids.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e6061-T6 billet aluminum body with black MIL-A-8625 Type II anodized finish.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eLaser marked with flow direction and hinge location per military specification.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMaximum operating backflow holding pressure of 300+ psi, burst backflow holding pressure of over 1,000 psi.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMaximum unchecked (normal direction of flow) operating pressure of over 1,000 PSI.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e-4°F to +392°F (-20°C to +200°C) operating temperature range.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMade in USA.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eLifetime Warranty.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eDimensions\u003c\/h2\u003e\n\u003cp\u003eImproved Racing's check valves are available in multiple fitting sizes, and the inlet and outlet halves can be mixed and matched to create a completely custom valve in a compact space.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBelow are the overall dimensions for some common valve configurations:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0629\/9556\/2683\/files\/FCV-12-08AM-BULK-DIMS.png?v=1769435682\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003e-8AN Male\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0629\/9556\/2683\/files\/FCV-12-10AM-BULK-DIMS_dc7e183f-3566-4de4-95fc-7ec3933b8fde.png?v=1769435712\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003e-10AN Male\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0629\/9556\/2683\/files\/FCV-12-10RF-Bulk-Dims.png?v=1769435755\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003e-10AN O-Ring Boss Female\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0629\/9556\/2683\/files\/FCV-12-12AM-Bulk-Dims.png?v=1769435829\" alt=\"\"\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003e-12AN Male\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eIdeal for use in oiling systems (wet sump and dry sump), fuel systems, crankcase pressure ventilation systems, coolant systems, and more.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data item content allow\" aria-labelledby=\"tab-label-additional\" id=\"additional\" data-role=\"content\" role=\"tabpanel\" aria-hidden=\"false\"\u003e\n\u003cdiv class=\"additional-attributes-wrapper table-wrapper\"\u003e\n\u003ctable class=\"data table additional-attributes\" id=\"product-attribute-specs-table\"\u003e\n\u003ccaption class=\"table-caption\"\u003e\u003c\/caption\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth class=\"col label\" scope=\"row\"\u003ePart #\u003c\/th\u003e\n\u003ctd class=\"col data fried\" data-th=\"Part #\"\u003e\n\u003cdiv\u003eFCV-12\u003cbr\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"col label\" scope=\"row\"\u003eBrand\u003c\/th\u003e\n\u003ctd class=\"col data fried\" data-th=\"Brand\"\u003e\n\u003cdiv\u003eImproved Racing\u003cbr\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"col label\" scope=\"row\"\u003eColor\u003c\/th\u003e\n\u003ctd class=\"col data fried\" data-th=\"Color\"\u003e\n\u003cdiv\u003eBlack\u003cbr\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"col label\" scope=\"row\"\u003ePrimary Material\u003c\/th\u003e\n\u003ctd class=\"col data fried\" data-th=\"Primary Material\"\u003e\n\u003cdiv\u003e6061-T6 aluminum\u003cbr\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"col label\" scope=\"row\"\u003eFinish\u003c\/th\u003e\n\u003ctd class=\"col data fried\" data-th=\"Finish\"\u003e\n\u003cdiv\u003eType II Anodized\u003cbr\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"col label\" scope=\"row\"\u003eFitting Angle\u003c\/th\u003e\n\u003ctd class=\"col data fried\" data-th=\"Fitting Angle\"\u003e\n\u003cdiv\u003eStraight\u003cbr\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"col label\" scope=\"row\"\u003eConnection B Size\u003c\/th\u003e\n\u003ctd class=\"col data fried\" data-th=\"Connection B Size\"\u003e\n\u003cdiv\u003e1-3\/4\"\u003cbr\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"col label\" scope=\"row\"\u003eConnection B Gender\u003c\/th\u003e\n\u003ctd class=\"col data fried\" data-th=\"Connection B Gender\"\u003e\n\u003cdiv\u003eN\/A\u003cbr\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"col label\" scope=\"row\"\u003eMaximum Operating Temperature\u003c\/th\u003e\n\u003ctd class=\"col data fried\" data-th=\"Maximum Operating Temperature\"\u003e\n\u003cdiv\u003e392°F (200°C)\u003cbr\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"col label\" scope=\"row\"\u003eMinimum Operating Temperature\u003c\/th\u003e\n\u003ctd class=\"col data fried\" data-th=\"Minimum Operating Temperature\"\u003e\n\u003cdiv\u003e-4°F (-20°C)\u003cbr\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"col label\" scope=\"row\"\u003eMaximum Operating Pressure\u003c\/th\u003e\n\u003ctd class=\"col data fried\" data-th=\"Maximum Operating Pressure\"\u003e\n\u003cdiv\u003e1000 psi (68.94 bar)\u003cbr\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"col label\" scope=\"row\"\u003eO-Ring \/ Gasket Material\u003c\/th\u003e\n\u003ctd class=\"col data fried\" data-th=\"O-Ring \/ Gasket Material\"\u003e\n\u003cdiv\u003eFKM (Viton)\u003cbr\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"col label\" scope=\"row\"\u003eSwivel\u003c\/th\u003e\n\u003ctd class=\"col data fried\" data-th=\"Swivel\"\u003e\n\u003cdiv\u003eNone\u003cbr\u003eon installation only\u003cbr\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"col label\" scope=\"row\"\u003eApplications\u003c\/th\u003e\n\u003ctd class=\"col data fried\" data-th=\"Applications\"\u003e\n\u003cdiv\u003eBreather and vent lines\u003cbr\u003eFuel (in-tank)\u003cbr\u003eFuel (outside of tank)\u003cbr\u003eGauge and sensor lines\u003cbr\u003eHigh pressure applications\u003cbr\u003eHigh temperature applications\u003cbr\u003eHydraulics: low pressure (return lines)\u003cbr\u003eVacuum lines\u003cbr\u003eOther oil water and air systems\u003cbr\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"col label\" scope=\"row\"\u003eFluid Compatibility\u003c\/th\u003e\n\u003ctd class=\"col data fried\" data-th=\"Fluid Compatibility\"\u003e\n\u003cdiv\u003eAir\u003cbr\u003eAlcohol\u003cbr\u003eCoolants\u003cbr\u003eEngine oil\u003cbr\u003eEthanol-based fuels (E85+)\u003cbr\u003eEthanol\/gasoline mixtures\u003cbr\u003eGear oil\u003cbr\u003eMethanol\u003cbr\u003eNitromethane \u003cbr\u003eNitrous Oxide\u003cbr\u003ePower Steering Fluid\u003cbr\u003eRacing fuels\u003cbr\u003eTransmission fluid\u003cbr\u003eVacuum\u003cbr\u003eWater\u003cbr\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"col label\" scope=\"row\"\u003eStandards \u0026amp; Certifications\u003c\/th\u003e\n\u003ctd class=\"col data fried\" data-th=\"Standards \u0026amp; Certifications\"\u003e\n\u003cdiv\u003eAN Threads \u0026amp; 37° Flares per SAE AS4395\u003cbr\u003eMilspec Type II Anodizing\u003cbr\u003eO-Ring Boss Threads per SAE J1926-3 \u0026amp; ASME B1.1\u003cbr\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data item title active allow\" data-role=\"collapsible\" id=\"tab-label-ihnsgroup_product_attachments\" role=\"tab\" data-collapsible=\"true\" aria-controls=\"ihnsgroup_product_attachments\" aria-selected=\"false\" aria-expanded=\"true\" tabindex=\"0\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"data item content allow\" aria-labelledby=\"tab-label-ihnsgroup_product_attachments\" id=\"ihnsgroup_product_attachments\" data-role=\"content\" role=\"tabpanel\" aria-hidden=\"false\"\u003e\n\u003cdiv class=\"product-attachment-container\"\u003e\n\u003cdiv class=\"section-title\"\u003e\u003cstrong\u003eInstruction Manuals\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv class=\"section-files\"\u003e\n\u003cdiv class=\"downloads-item\"\u003e\n\u003cdiv class=\"item-link\"\u003e\u003ca href=\"https:\/\/www.improvedracing.com\/manuals\/download\/link\/id\/102\/FCV-12%20High-Flow%20Check%20Valve%20Instruction%20Manual\" rel=\"102\" title=\"FCV-12 High-Flow Check Valve Instruction Manual\" target=\"_blank\"\u003e\n\u003cdiv class=\"item-icon ir-icon-attach\"\u003e\u003c\/div\u003e\n\u003cb\u003eFCV-12 High-Flow Check Valve Instruction Manual\u003c\/b\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv class=\"item-info\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"item-description\"\u003eFCV-12 HIGH-FLOW, LOW CRACKING PRESSURE FLAPPER CHECK VALVE\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Improved Racing","offers":[{"title":"Default Title","offer_id":47400080605371,"sku":"FCV-12-08AM","price":149.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0629\/9556\/2683\/files\/image_dbe47d4d-92d9-4054-84ea-f94703dbeb2a.jpg?v=1769435477","url":"https:\/\/drifthq.com\/pt\/products\/improved-racing-high-flow-flapper-check-valve-12-body-8an-male","provider":"Drift HQ","version":"1.0","type":"link"}