Bosch Rexroth | ZDR6DB2-4X150YMV12
ZDR6DB2-4X/150YMV/12
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The ZDR6DB2-4X/150YMV/12 pressure reducing valve is manufactured by Bosch Rexroth for the ZDR Pressure Reducing Valves series and is used to maintain a stable downstream pressure in hydraulic automation circuits. It is designed for sandwich plate mounting, allowing direct installation between subplates without extra tubing, and features a nominal size of 6 to save space while handling standard flow demands. The port faces comply with ISO 4401-03-02-0-05, ensuring interchangeability with common CETOP 03 manifolds. Pressure reduction takes place in channel P, with pilot oil drawn from channel B to monitor the supply side accurately and returned externally through port Y so internal pressures do not influence the setting. A bushing with a hexagon provides simple wrench adjustment, and FKM seals are fitted for compatibility with aggressive hydraulic fluids. The valve contains no internal check valve, so reverse flow must be managed elsewhere in the system.
The unit accepts an input pressure of up to 315 bar and limits the secondary circuit to 150 bar to protect downstream components. Backpressure at the pilot drain can reach 160 bar, which broadens installation options when routing the external return. A maximum flow of 50 l/min passes through the body without exceeding rated performance, matching the capacity associated with size 6 ports. Fluid cleanliness must be kept at 20/18/15 per ISO 4406(c) to prevent spool sticking and wear. A dedicated gauge port with a G1/4 thread and a depth of 12 mm allows technicians to measure the regulated pressure directly during commissioning or maintenance. These parameters enable precise and reliable pressure control across diverse hydraulic machines.
Technical Specifications
Adjustment Type
Bushing With Hexagon
Check Valve
None
Cleanliness Class
20/18/15 (ISO 4406(c))
Gauge Port Depth
12 mm
Gauge Port Thread
G1/4
Max Backpressure (t(y))
160 bar
Max Flow
50 l/min
Max Operating Pressure (input)
315 bar
Max Secondary Pressure
150 bar
Mounting
Sandwich Plate
Nominal Size
6
Pilot Oil Return
External (Y)
Pilot Oil Source
Channel B
Port Pattern
ISO 4401-03-02-0-05
Reduction Channel
P
Seal Material
FKM
1620 Old Apex Road
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