Bosch Rexroth 0-811-404-143 Proportional Valve

The Bosch Rexroth 0-811-404-143 Proportional Valve is an electrohydraulic proportional directional control valve that converts an electrical input signal into a proportional hydraulic output, with actuation by a proportional solenoid and electrical position feedback for precise, repeatable control. Designed for subplate mounting, it supports NG6 or NG10 configurations depending on the setup and is commonly used for hydraulic motion and process control in presses, injection molding machines, machine tools, and servo-hydraulic systems. Key specifications include a maximum working pressure up to 315 bar (4568 psi), maximum tank pressure up to 200 bar, 24 VDC typical power supply, DIN 43560 / 6P+PE electrical connector, IP65 protection, operating temperature range of -20°C to +70°C, and mineral hydraulic oil per DIN 51524. As a legacy OEM replacement component, it is available through surplus suppliers and aligns with Bosch Rexroth series such as 4WRPE or 4WRPH for common replacements.