Bosch Rexroth | ZDR6DP2-4X150YM12
ZDR6DP2-4X/150YM/12
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The ZDR6DP2-4X/150YM/12 valve is part of the ZDR Pressure Reducing Valves series manufactured by Bosch Rexroth for hydraulic automation tasks that require stable downstream pressure. It is a nominal size 6 unit that mounts on subplates with an ISO 4401-03-02-0-05 interface, corresponding to the CETOP D03 pattern used in compact manifolds. Pressure is set with a sleeve that has a hexagon and protective cap so the setting can be locked after adjustment. The reduction channel is port P, and the internal spool symbol P2 → P1 defines the direction in which the inlet flow is throttled. Pilot oil is supplied internally and drained externally, which prevents pilot contamination by tank pressure peaks. During operation the valve withstands up to 350 bar at the inlet while holding the secondary line to 150 bar. A maximum flow rate of 50 l/min allows it to serve medium-duty actuator groups without excessive pressure loss.
The design contains no check valve, so reverse flow must be routed through separate circuitry when required. An SAE-threaded gauge port is provided to attach pressure instruments without adapters, and NBR seals retain the working fluid under dynamic conditions. Approved media include HL, HLP, HLPD, HVLP, HVLPD, and HFC fluids, giving the valve flexibility in mineral-oil and water-glycol systems. Circuit diagrams can reference NFPA T3.5.1 R2-2002 D03 for port lettering that matches the mounting face. Total mass is 1.44 kg, light enough for direct block installation or replacement during service intervals. These characteristics complement the parameters already stated and position the ZDR6DP2-4X/150YM/12 for manifold assemblies where precise pressure reduction, tamper-resistant setting, and compatibility with multiple fluid types are required.
Technical Specifications
Adjustment Type
Sleeve With Hexagon And Protective Cap
Cetop Size
D03
Check Valve
None
Gauge Port Thread
SAE
Hydraulic Fluids
HL, HLP, HLPD, HVLP, HVLPD, HFC
Maximum Flow
50 l/min
Maximum Operating Pressure
350 bar
Mounting Interface
ISO 4401-03-02-0-05
Nfpa Connection Diagram
T3.5.1 R2-2002 D03
Nominal Size
6
Pilot Oil Configuration
Internal Supply, External Drain
Reduction Channel
P
Seals
NBR
Secondary Pressure Rating
150 bar
Spool Symbol
P2 → P1
Weight
1.44 kg
1620 Old Apex Road
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