Z2DB10VD2-4X/50V

The Z2DB10VD2-4X/50V is manufactured by Bosch Rexroth for the ZDB Pressure Relief Valves series and functions as a pilot-operated pressure relief component that protects hydraulic systems from excessive pressure. A sandwich plate connection lets the valve be inserted between subplate and actuator layers without extra piping, streamlining manifold assembly. The relief path is active in both A–B and B–A flow directions so pressure is limited regardless of flow orientation. A maximum operating pressure of 315 bar defines the upper pressure that the body and internals can withstand, while the factory set pressure of 50 bar determines the level at which the pilot stage begins to open and divert flow.

Adjustment type 2 uses a sleeve with a hexagon head and protective cap, allowing service personnel to alter the setting while shielding it from accidental movement. The valve tolerates up to 40 bar counter-pressure on the return line without affecting relief accuracy. FKM seal material supports operation with fluids that require enhanced chemical and temperature resistance. Because the installation position is unrestricted, designers can mount the unit in any orientation within compact power packs. A required fluid cleanliness of ISO 4406 20/18/15 limits particulate contamination to sustain reliable pilot operation and long service life.