4WRTE16E125P-4X/6EG24K31/A5M

The 4WRTE16E125P-4X/6EG24K31/A5M valve is produced by Bosch Rexroth for the 4WRTE Directional Control Valves series and is applied in hydraulic automation systems to regulate actuator speed and direction. Nominal size NG 16 sets passage dimensions suitable for medium flow circuits, while the ISO 4401-07-07-0-05 porting pattern allows direct mounting on standard sub-plates. Each working and return port is machined to a 20 mm diameter to match the series flow category. A linear fine control spool marked with flow characteristic P enables proportional adjustment of flow for precise motion tasks. The unit supports a recommended flow rate up to 460 l/min so large cylinders or motors can be moved at high speed when required. Operating pressure can reach 350 bar on ports P, A, and B, and the return line at port T is permitted to 250 bar, giving flexibility in closed or semi-closed circuits. These pressure and flow limits define the performance envelope available to machine designers.

Electronic and pilot functions complete the valve’s control package. An external pilot oil supply feeds a detachable coil pilot stage coded 6E, and that stage meters up to 14 l/min as the command signal varies from 0 to 100 percent. The on-board electronics interface labeled A5 works with a 24 VDC supply, providing proportional current output to shift the main spool. Electrical connection uses the DIN EN 175201-804 K31 plug so wiring can follow common industrial harnesses. Integrated spool position monitoring reports real-time feedback to the machine controller, improving accuracy and enabling fault detection. A protection class of IP65 shields internal components against dust and water jets, allowing installation on exposed manifolds. The assembled valve weighs 11.2 kg, which supports rigid mounting without additional brackets yet remains manageable for single-person service. Together these features ensure consistent directional control in demanding hydraulic equipment.