SMC Corporation VTA301 3 Port Air Operated Valve

The SMC VTA301 is a compact 3-port air-operated valve designed to control pneumatic signals in tight automation spaces. It uses 1/8" NPT ports for both the main air supply and pilot connections, making it straightforward to drop into standard SMC-compatible manifolds. The valve operates with a supply pressure range of 0–1 MPa and a pilot pressure range of 0.2–1 MPa, enabling reliable actuation in low- to mid-pressure circuits. As part of SMC’s VTA301 family, this unit is built to provide simple, dependable actuation by directing or diverting pilot air to downstream components, with exhaust paths accommodated to help manage venting during switching. Typical applications include pilot signaling and control within compact pneumatic systems, where space is at a premium and precise, low-pressure control is required. The VTA301’s 3-port configuration and external-pilot operation support straightforward integration into existing line layouts, making it suitable for lightweight automation tasks, packaging equipment, and other settings that demand compact, air‑driven control without electrical actuation.