SMC VEF2131-1-03 Electro-Pneumatic Proportional Valve

The SMC VEF2131-1-03 is a two-port, flow-type electro-pneumatic proportional valve in the VEF/VEP family that provides stepless, electrically commanded control of air flow or pressure for precise metering in compact pneumatic systems. It features 3/8 inch port connections (Port Size 03) with Rc threading and uses body size 3 as its active configuration, pairing with the VEA25 power amplifier to convert analog signals into proportional valve output. Typical applications include die cushions, pressure control for welding machines and low-pressure casting, and multi‑stage speed control of air cylinders and rotary air motors, enabling smooth modulation of pneumatic flow across dynamic processes. Key specifications include a 2-port arrangement with Port 2 having a maximum effective area of 30 mm² at body size 3, and compatibility with SMC CAD data and 2D/3D drawings for integration into control systems.