SMC VHS50-06-XG Pneumatic 3-Port Lockout Valve

SMC VHS50-06-XG is a 3-port pressure-relief valve with locking holes designed for lockout-capable depressurization of pneumatic systems. This 3/4 in nominal port valve belongs to the VHS50 series and uses a die-cast aluminum body with locking holes that accept a padlock during maintenance to prevent inadvertent actuation, aligning with OSHA-style safety designs for pressure-relief valves. It is specified for a pressure range of 0.1 to 1 MPa, providing controlled relief from the IN to OUT path and from OUT to EXH, and it carries Cv flow characteristics of 6.4 (IN→OUT) and 5.9 (OUT→EXH), supporting predictable depressurization across common automation circuits. The IN, OUT, and EXH ports accommodate standard pneumatic lines, with a dedicated exhaust path to vent pressure as relief occurs. Typical applications include isolating and depressurizing cylinders or actuators during maintenance, enabling lockout/tagout procedures on pneumatic equipment, and ensuring a safe reset sequence in automated lines where both relief and venting are required. In the VHS50 lineup, the 06 variant provides a compact, durable solution for 3/4 in line work, combining reliable pressure relief with a secure locking mechanism for workplace safety.