4WRZE16W6-150-7X/6EG24N9ETK31/F1M

The 4WRZE16W6-150-7X/6EG24N9ETK31/F1M proportional directional valve is manufactured by Bosch Rexroth and belongs to the WRZ Proportional Directional Valves series. It regulates flow and direction in hydraulic automation circuits where precise electronic control is required. The valve accepts a 24 V DC supply voltage so it can be powered directly from standard machine power buses. A 4 to 20 mA command signal drives the integrated amplifier, allowing the unit to respond to typical process control loop outputs. The 15 % command value overlap establishes a predictable null zone that helps avoid unintended spool movement near zero command. With a nominal flow of 150 l/min at a 10 bar pressure drop, the valve can support medium-to-high flow actuators. A maximum operating pressure of 350 bar lets it work in high-pressure systems without derating. The ISO 4401-07-06-0-94 mounting pattern allows direct installation on common subplates. Internal pilot supply simplifies installation by eliminating an external pressure line, and the internal pilot drain removes the need for a dedicated return port.

The associated electronics draw a maximum of 1.8 A, a value that defines the sizing for upstream power stages. Continuous duty at 100 % cycle means the coil can remain energized without mandatory cool-down intervals. The coil is rated to a maximum temperature of 150 °C, setting the thermal ceiling for ambient and fluid conditions. An IP65 protection rating shields the housing against dust ingress and low-pressure water jets, making cabinet-free mounting possible. Electrical termination uses a DIN EN 175201-804 connector, which standardizes wiring with molded plugs. A concealed manual override is present, giving service personnel a way to shift the spool mechanically while keeping the override protected from accidental activation. NBR seal material is selected for compatibility with common mineral-based hydraulic fluids and for resistance to wear. Finally, the valve weighs 13.6 kg, a factor that influences manifold support structures and handling equipment during installation.