Fuel Sample Check Valve

The Aeromotive Fuel Sample Check Valve (Part Number 15631) is a precision-engineered sampling component designed for fuel system diagnostics and monitoring on high-performance vehicles. This aluminum check valve combines a 1/8-inch NPT male inlet with dual outlet configurations—a 3/16-inch hose barb outlet and an additional 1/8-inch NPT port—enabling flexible integration into custom fuel systems, test stands, and data acquisition setups where real-time fuel sampling is critical.

Built from aluminum with black anodized finish, this check valve delivers corrosion resistance and durability in demanding environments. The integrated check mechanism prevents backflow, protecting downstream sampling equipment and fuel system integrity during pressure cycling. At just 0.24 pounds and compact dimensions (4.9 x 2.35 x 6.65 inches), the unit installs cleanly in engine bays and fuel cell compartments without compromising serviceability. The NPT threading standard ensures compatibility with industry-standard fuel system components and fittings commonly found in motorsport and aftermarket fuel system applications.

This sample valve serves fuel system builders, tuners, and technicians who need to extract fuel samples for quality analysis, ethanol content testing, or pressure verification without disrupting primary fuel delivery. It's equally valuable for dyno operators and diagnostic shops validating fuel delivery across load conditions. Aeromotive's check valve design ensures one-way flow, eliminating splashback and contamination risks during the sampling process. Serious fuel system development depends on accurate data—this valve provides the precision access point to capture it.