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The EVIL ENERGY 1/2" Fuel Check Valve is a premium inline non-return valve made from durable 6061-T6 aluminum alloy with a corrosion-resistant black anodized finish. Designed for low-pressure fuel systems, it features a stainless steel spring that ensures one-way flow, preventing backflow and maintaining stable pressure between 0.2 and 6 bar. Operating reliably across a wide temperature range (-22℉ to 266℉), this compact valve is easy to install with barb connectors and supports multiple fluids including diesel, gasoline, and oil. Sold as a 2-piece set, it’s a top-ranked choice for automotive fuel system upgrades.
















| ASIN | B09TT4BVB5 |
| Best Sellers Rank | #1,840 in Automotive ( See Top 100 in Automotive ) #1 in Automotive Replacement Exhaust Check Valves |
| Brand Name | EVIL ENERGY |
| Connector Type | Barb |
| Customer Reviews | 4.5 4.5 out of 5 stars (3,142) |
| Exterior Finish | Stainless Steel |
| Inlet Connection Size | 0.5 inches |
| Inlet Connection Type | National Pipe Tapered |
| Item Dimensions | 3.94 x 0.79 x 0.79 inches |
| Manufacturer | EVIL ENERGY |
| Manufacturer Part Number | EV01342S12BK |
| Material Type | Aluminum |
| Maximum Pressure | 6 bar |
| Model Number | EV01342S12BK |
| Number of Pieces | 2 |
| Number of Ports | 2 |
| Outlet Connection Size | 0.5 inches |
| Outlet Connection Type | National Pipe Tapered |
| Set Name | 2 |
| Size | 1/2 |
| Specification Met | ASME, ANSI, API |
| Thread Size | 1/2 inch |
| Thread Type | NPT |
| Unit Count | 2 Count |
| Valve Type | Check Valve |
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