SMC Corporation SY3100-5U1 Pneumatic Solenoid Valve

SMC SY3100-5U1 is a 5-port, 2-position pneumatic solenoid valve in the SY3000 family, designed for base-mounted installation with optional sub-base mounting and internal pilot control. A 24 V DC solenoid coil drives an internal pilot that shifts a pilot-operated, 5/2 valve to control a double-acting cylinder, with exhaust routed through dedicated ports. The valve supports supply air pressures from 0.1 to 0.7 MPa (1–7 bar) and is typically implemented in compact automation layouts where space is at a premium. Coil power consumption is 0.4 W, enabling small, efficient electrical control in control panels. The SY3100-5U1 variant is widely used in applications such as packaging lines, assembly automation, and tooling systems, where reliable actuation and a small footprint are important.