Industrial 22NN97 In Tank Check Valve is a 3/4" FPT x 3/4" MPT inline valve designed for installation inside air compressor tanks to ensure one-way flow. It serves as a direct replacement for Champion/Speedaire part 22NN97 and uses standard 3/4" pipe-thread connections on both ends. In-tank check valves prevent backflow from the tank into the compressor, helping maintain tank pressure and reliable operation of the system. This valve is commonly used in Champion/Speedaire-equipped compressors and other industrial air systems that require a tank-side check valve.
