Bosch Rexroth | ZDB6VP3-4X100V
ZDB6VP3-4X/100V
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The ZDB6VP3-4X/100V valve is produced by Bosch Rexroth for the ZDB Pressure Relief Valves series. It is a pilot-operated pressure relief component intended to limit system pressure in hydraulic automation circuits by routing excess fluid from port P to port T. The valve is built in size 6 and uses a sandwich plate design that fits into stacks with the ISO 4401-03-02-0-05 porting pattern. One valve cartridge performs the relief function, and pressure adjustment is made through a lockable rotary knob with a scale so operators can set the working limit accurately. The standard pressure rating is 100 bar, while internal parts tolerate operating pressures up to 315 bar without loss of performance. Installation position is unrestricted, allowing the unit to be mounted in any orientation within the manifold.
Maximum flow capacity reaches 60 l/min, ensuring adequate throughput for medium-duty circuits, and the valve withstands up to 40 bar of counter pressure on the return line without malfunction. A fluorocarbon FKM seal set maintains leakage control across a broad temperature and fluid range, while the assembly omits dedicated locating holes to simplify stacking in compact blocks. Fluid cleanliness should stay at class 20/18/15 according to ISO 4406(c) to preserve the pilot stage, and no additional corrosion protection is applied so the surrounding enclosure must guard against moisture. These features provide predictable relief behavior when the manifold is exposed to varying loads and return line restrictions.
Technical Specifications
Adjustment Type
Lockable Rotary Knob With Scale
Cleanliness Class
20/18/15 (ISO 4406 (c))
Corrosion Protection
None
Installation Position
Any
Locating Hole
None
Max Counter Pressure
40 bar
Max Flow
60 l/min
Max Operating Pressure
315 bar
Mounting Type
Sandwich Plate Valve
Porting Pattern
ISO 4401-03-02-0-05
Pressure Rating
100 bar
Relief Function
P to T
Seal Material
FKM
Size
6
Valve Cartridges
1
Valve Type
Pilot-Operated Pressure Relief
1620 Old Apex Road
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