Bosch Rexroth | Z2DB6VC3-4X100V
Z2DB6VC3-4X/100V
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The Z2DB6VC3-4X/100V valve is part of the ZDB Pressure Relief Valves series manufactured by Bosch Rexroth for hydraulic automation systems that require reliable pressure limitation. It is a pilot-operated pressure relief valve in size 6, built as a sandwich plate unit that fits the ISO 4401-03-02-0-05 subplate pattern. Two integrated pressure-valve cartridges provide separate relief paths from port A to tank and from port B to tank. The adjustment mechanism is a lockable rotary knob with a graduated scale, allowing repeatable onsite setting of the 100 bar preset pressure. The design tolerates inlet pressures up to 315 bar, ensuring reserve above the chosen relief point for transient peaks.
Rated for flows up to 60 l/min, the valve supports system throughput typical of compact power units. Tank-line back pressure may reach 40 bar without impairing function, while FKM seals maintain leakage control with common mineral or synthetic oils. The recommended fluid cleanliness level is ISO 4406 class 20/18/15 to protect internal pilot passages. Mounting orientation is unrestricted, and a SW24 hexagon must be torqued to 50 Nm during installation to secure the stack. These characteristics allow the valve to be inserted quickly into modular manifolds while keeping pressure stability within specified limits.
Technical Specifications
Adjustment Type
Lockable Rotary Knob With Scale
Cleanliness Class
ISO 4406 20/18/15
Connection Type
Sandwich Plate Valve
Direction Of Action
A–T And B–T
Hexagon Sw24 Tightening Torque
50 Nm
Installation Position
Any
Maximum Counter Pressure
40 bar
Maximum Flow
60 l/min
Maximum Operating Pressure
315 bar
Porting Pattern
ISO 4401-03-02-0-05
Pressure Valve Cartridges
2
Seal Material
FKM
Set Pressure Rating
100 bar
Size
6
Valve Type
Pilot-Operated Pressure Relief Valve
1620 Old Apex Road
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