Bosch Rexroth | Z2DBY6DC2-1X160V60
Z2DBY6DC2-1X/160V/60
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The Z2DBY6DC2-1X/160V/60 valve is produced by Bosch Rexroth for the ZDB Pressure Relief Valves series and serves to limit system pressure in hydraulic automation circuits. It is a size 6 sandwich plate valve, so it fits between standard manifold plates without additional adapters. The ISO 4401-03-02-0-05 porting pattern matches CETOP 03 subplates, allowing direct substitution during maintenance. Because the installation position is unrestricted, designers can orient the assembly as space permits. Fastening is performed with M5 mounting screws that must be tightened to 50 Nm to secure the sealing surfaces. A required surface roughness of Rz1max 8 on the mating plate minimizes leakage paths and protects the elastomer seals.
This unit is a pilot-operated pressure relief valve, enabling stable pressure control at high flows. It supports a maximum operating pressure of 315 bar, while the adjustable set pressure can also be raised to 315 bar to match pump capability. Flow capacity reaches 60 l/min, covering most medium-size actuator circuits. The return port can tolerate up to 40 bar counter pressure without affecting opening behavior. Pilot oil is routed externally to the tank, which prevents interaction with fluctuating block pressures. Fluid cleanliness must reach ISO 4406 20/18/15 to avoid spool wear and maintain consistent relief performance.
Technical Specifications
Cleanliness Class
ISO 4406 20/18/15
Form Factor
Sandwich Plate Valve
Hexagon Tightening Torque
50 Nm
Installation Position
Any
Max Counter Pressure
40 bar
Max Flow
60 l/min
Max Operating Pressure
315 bar
Max Set Pressure
315 bar
Mounting Screw Size
M5
Pilot Oil Drain
External To T
Porting Pattern
ISO 4401-03-02-0-05
Required Surface Roughness
Rz1max 8
Size
6
Valve Type
Pressure Relief (Pilot-Operated)
1620 Old Apex Road
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