FAQ: Rexroth Z2DB10VD2-4X/200V

What is it?​

A high-flow stacked relief/unloading valve with solenoid control.

Key features?​

• Type:​ Stacked relief/unloading valve.

• Pressure:​ 200 bar.

• Flow:​ 100 L/min.

• Pilot:​ VD2 (two-way, two-position).

• Voltage:​ 24V DC.

How does it work?​

When energized, the solenoid opens the valve to unload the pump. De-energizing it resets the system pressure to 200 bar.

What is "VD2"?​

A two-way, two-position pilot valve design that controls the main relief valve's opening and closing.

Where is it used?​

In high-flow hydraulic systems (e.g., test benches, large machinery) for pump unloading and pressure regulation.

Common issues?​

• No unloading:​ Check the solenoid and power supply.

• Pressure drop:​ Check pilot supply pressure and fluid cleanliness.