SMC VHS20-F02B 3-Port G1/4 Pressure Relief Valve

SMC VHS20-F02B is a compact, manual-control 3-port pneumatic relief valve in the VHS family. It connects to standard pneumatic lines via G1/4 (1/4 in) ports and is designed to protect air circuits by venting excess pressure to the exhaust when the system pressure reaches the relief setpoint. The part is rated for a maximum operating pressure of 1.0 MPa, with a minimum operating pressure of 0.01 MPa and a proof pressure of 1.5 MPa, making it suitable for typical factory air systems and automation equipment. The unit weighs approximately 0.096 kg, helping keep enclosure space and mounting requirements minimal. This 3-port valve provides relief across three ports in a compact form factor, making it ideal for safeguarding cylinders and pneumatic actuators, protecting delicate components downstream, and providing a straightforward overpressure protection option in tight installations. As a VHS-series hand valve, VHS20-F02B is commonly paired with compact automation modules where a straightforward, mechanical relief action is preferred, such as in pick-and-place machines, conveyors, and small tooling stations requiring reliable, serviceable overpressure protection with standard G1/4 fittings.