Ball Style Inline Check Valve Male -10AN

The Ball Style Inline Check Valve Male -10AN is a precision flow-control component designed for high-pressure hydraulic and fuel system applications where unidirectional flow is critical. This check valve prevents backflow and siphoning in fuel injection systems, hydraulic lines, and carbureted engine builds, making it essential for racers, hot rodders, and automotive enthusiasts who demand reliability under demanding conditions. The -10AN sizing indicates compatibility with industry-standard AN fittings, ensuring seamless integration into professional-grade fuel delivery and fluid transfer systems.

Built from aluminum and finished in black anodized coating, this inline check valve features a ball-style internal mechanism that opens under forward pressure and closes instantly to block reverse flow. The male -10AN inlet couples with a female O-ring outlet, providing leak-free connections and straightforward installation in fuel lines, transmission coolers, and auxiliary systems. The anodized aluminum construction offers corrosion resistance and a lightweight profile while maintaining structural integrity at high pressures, making it ideal for both street and racing applications where weight and durability matter equally.

This valve benefits fuel system builders, vintage car restorers, and performance tuners who need reliable backflow prevention without complexity. It is commonly used in fuel cells, EFI conversions, and carb-to-pump plumbing where preventing fuel siphoning protects engine performance and system integrity. Installation is straightforward—simply thread the male inlet into an AN-threaded port and connect the female outlet to your distribution line, allowing the ball mechanism to function passively under normal operation while protecting your system during engine shutdown or pressure loss.