Campbell Hausfeld HX001000AV Check Valve Air Compressor

The Campbell Hausfeld HX001000AV is a replacement check valve for Campbell Hausfeld's HX5100-series air compressors, compatible with HX5100 and HX5101 models. In these oil-lubricated piston compressors, the check valve is part of the check-valve assembly that directs air from the pump into the storage tank and blocks backflow when the unit cycles off, helping maintain tank pressure and prevent pressure from returning to the pump. Used in maintenance and repair of HX5100-series equipment, the HX001000AV is listed in Campbell Hausfeld parts diagrams for the HX5100 family, serving as a genuine OEM component to restore proper one-way airflow in the system. Replacing a worn or leaking HX001000AV with this part is a common service step to return the unit to expected performance and to ensure compatibility with the HX5100-series pump and tank setup.