SMC Corporation VHS-N03-Z Modular Lock-Out Valve

SMC VHS-N03-Z is a 3-port modular lock-out valve from the VHS family designed to securely isolate a pneumatic line during maintenance or setup. It features three 3/8 in NPT ports (IN, OUT, EXH) and operates over a supply pressure range of 0.1 to 1 MPa (about 15 to 150 psi), making it compatible with standard shop air systems. As a modular valve, it can be combined with other VHS components to form scalable lock-out configurations for automation lines, enabling a verifiable shutoff while leaving other circuit sections unaffected. The NPT end style supports standard 3/8 in NPT fittings and aligns with SMC’s catalog specifications for VHS30-series lock-out valves. Typical applications include locking out actuators, clamps, or grippers in production equipment during maintenance, testing, or tool changes, where a clearly identifiable, safe isolation point is required. Because this is a VHS lock-out valve, it integrates with the broader SMC VHS modular system, allowing designers to tailor port arrangements and mounting to fit existing pneumatic layouts. For precise suffix details and compatible configurations, refer to official SMC VHS catalogs and product documents for VHS30-N03-Z variants.