Campbell Hausfeld CV221500AJ Check Valve With Fittings

Campbell Hausfeld CV221500AJ Check Valve With Fittings is an in-tank, one-way valve designed for Campbell Hausfeld portable air compressors. The CV221500AJ (also listed as CV221500SJ in some parts catalogs) is configured with a 1/2 in compression connection on one end and a 1/2 in MNPT connection on the other, and it includes fittings for installation. The part is documented in Campbell Hausfeld replacement parts lists for portable units, confirming its role in the pump-to-tank flow path. By allowing airflow into the tank while preventing backflow into the pump, this valve helps maintain tank pressure and protect the pump when the compressor cycles. Its compact inline form is designed to fit within typical tank inlet configurations and accepts standard 1/2 in compression and 1/2 in MNPT connections, making it a direct replacement for worn or sticking check valves on compatible Campbell Hausfeld models.