CAMPBELL CW207576AV Pressure Switch Unloader Valve

CW207576AV is a Campbell Hausfeld pressure switch with an integrated unloader valve and lever, designed for precise 95–125 psi operation (cut-in 95 psi, cut-out 125 psi) and a differential of about 25–33 psi, making it a reliable replacement for Campbell Hausfeld units such as FP200000AV, MT500106, MT7004, VT613106, and VT618304. The unit adopts a 4-port configuration with 1/4" NPT female connections, providing inlet, outlet, and unloader lines in a compact, field-installable package. The built-in unloader valve relieves pressure from the pump head when the switch opens, supporting a smoother restart once tank pressure falls to the cut-in point, while the lever affords mechanical control and testing after installation. This combination—unloader valve, lever, and four-port 1/4" NPT connections—positions CW207576AV as a direct, aftermarket-compatible replacement for Campbell Hausfeld compressors that require an unloader-equipped pressure switch in the 95–125 psi range.