Z2DB10VC2-4X/200V S030

The Z2DB10VC2-4X/200V S030 pressure relief valve is produced by Bosch Rexroth within the ZDB Pressure Relief Valves series. It serves hydraulic automation by limiting system pressure and protecting components from overload. This pilot-operated pressure relief valve opens only when pilot flow signals that the preset limit has been reached, giving stable operation under varying loads. An adjustment sleeve with a hexagon and a protective cap provides a secure interface for setting the required pressure without disturbing adjacent manifold elements. The maximum set pressure is 200 bar, allowing use in medium-pressure circuits common to industrial machinery. A sandwich plate design lets the unit be installed between standard subplates and directional valves, preserving space inside compact hydraulic stacks.

The valve body contains two cartridges, so each service port can be safeguarded independently. Pressure is relieved from A to T and from B to T, which maintains safe levels on both sides of a bidirectional actuator. If needed, each cartridge can be preset to a different value, providing flexibility when cylinders require dissimilar force levels. Pilot oil drains externally through port T, preventing pilot flow from re-entering the manifold and simplifying pressure balancing. FKM sealing elements resist mineral oils and elevated temperatures, maintaining leakage integrity during continuous duty. This configuration supports hydraulic automation that demands balanced overpressure protection and reliable operation in restricted mounting spaces.