The Bosch Rexroth directional valve with catalog number R900922439 is a proportional, direct-operated valve designed for precise control in hydraulic systems. It operates without electric position feedback and runs on a 24 VDC supply, handling up to 2.5 amps. The valve accepts a command voltage range of ±10 volts or a 4–20 mA signal, allowing flexible control options. It is rated for a maximum operating pressure of 4550 PSI and supports flow rates up to 19.8 GPM. This model, identified as 4WRAE 10 W30-2X/G24N9K31/F1V, is available through BSP Automation, providing reliable performance for a variety of industrial applications.