Bosch Rexroth | ZDR6DP1-4X150YM12
ZDR6DP1-4X/150YM/12
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The ZDR6DP1-4X/150YM/12 pressure reducing valve is produced by Bosch Rexroth for the ZDR Pressure Reducing Valves series and serves to hold a stable downstream pressure in hydraulic automation circuits. It mates with subplates through the NFPA T3.5.1 D03 mounting interface, and its porting pattern follows ISO 4401-03-02-0-05 for standard size-6 cavities. Pressure is set with a rotary knob, enabling straightforward manual adjustment during commissioning or service. The nominal size 6 flow paths support compact manifold layouts. Pilot oil is supplied internally and returned externally, while the dedicated pilot drain exits through port T(Y) so return pressure does not influence the control stage. Reduced flow leaves the valve at port P, providing a defined supply point for sensitive actuators.
The unit holds the secondary circuit at 150 bar and accepts an inlet pressure up to 350 bar, giving a wide control window for machines that encounter fluctuating supply lines. It accommodates a maximum flow of 50 l/min and tolerates 160 bar backpressure at port T(Y) without losing stability. Any mounting attitude is permissible, allowing flexible block or line installation. NBR seals ensure compatibility with common mineral oils, and the construction omits an internal check valve so reverse flow must be managed elsewhere in the system. Cleanliness requirements are ISO 4406 20/18/15, meaning the oil must be filtered to the specified particle counts before entry. The valve weighs 1.513 kg, light enough for direct stacking on manifold plates without additional support.
Technical Specifications
Adjustment Type
Rotary Knob
Check Valve
Without (M)
Cleanliness Class
ISO 4406 20/18/15
Installation Position
Any
Max Backpressure Port T(y)
160 bar
Max Flow
50 l/min
Max Operating Pressure (input)
350 bar
Mounting Interface
NFPA T3.5.1 D03
Nominal Size
6
Pilot Drain Port
T(Y)
Pilot Oil Configuration
Internal Supply, External Return
Porting Pattern
ISO 4401-03-02-0-05
Pressure Reduction Port
P
Seal Material
NBR
Secondary Pressure Rating
150 bar
Weight
1.513 kg
1620 Old Apex Road
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