SMC Corporation of America VHS40-N06B-Z Relief Valve

The SMC VHS40-N06B-Z is a three-port, single-action residual-pressure relief valve from SMC Corporation of America, designed to vent excess pressure in pneumatic circuits and protect downstream components, with a 3/4 in nominal NPT connection and a die-cast aluminum body that includes locking holes for secure mounting. Operating over a pressure range of 0.1 MPa to 1 MPa (roughly 14.5 to 145 psi), it provides an In, Out, Exhaust flow path to vent excess pressure to the exhaust port when the preset limit is reached, and its NPT end style accommodates standard fittings for straightforward integration. This compact unit is well suited for automation equipment, pneumatic actuators, and safety circuits in manufacturing environments where controlled residual-pressure relief is required to keep systems within safe operating limits.