Product Overview
The Rexroth ZDR 6 DP2-43/25YM (Material No. R900483785) is a direct-operated, pilot-assisted pressure reducing valve from the proven ZDR 6 series, designed to maintain a constant reduced outlet pressure regardless of fluctuations in the primary (inlet) pressure or changes in flow demand. This sandwich-plate valve is a 3-way pressure reducing valve with a pressure-limiting function, meaning it regulates downstream pressure in the secondary circuit while simultaneously limiting it against impermissible pressure peaks. The “DP2” designation indicates a direct-operated spool-type design with a pressure gauge connection port, and the “43” pressure range covers adjustment up to approximately 43 bar, with the “25YM” suffix denoting the pressure adjustment range and adjustment type (25 bar nominal setting range with a specific adjustment element). The valve is used extensively in industrial hydraulic systems where a sub-circuit must operate at a lower, precisely controlled pressure than the main system pressure, such as clamping circuits, pilot control circuits, and secondary actuator loops.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Pressure Control Valve — Pressure Reducing Valve (3-way, direct-operated, spool type) |
| Model Designation | ZDR 6 DP2-43/25YM |
| Material / Order Number | R900483785 |
| Series | ZDR 6 series, size 6 (NG6 / CETOP 3 interface) |
| Pressure Adjustment Range | Up to 43 bar (secondary/reduced pressure setting range) |
| Nominal Setting Range | 25 bar (as designated by “25YM” adjustment element) |
| Maximum Operating Pressure | Up to 315 bar (inlet/primary side, standard industrial grade) |
| Maximum Flow Rate | Up to 60 L/min (size 6 nominal flow) |
| Actuation Type | Direct mechanical adjustment (spool actuated by spring force against reduced pressure) |
| Mounting & Connection | Sandwich plate / subplate mounting, ISO 4401 / CETOP 3 / NG6 interface |
| Port Configuration | P (inlet), A (reduced outlet), T (tank/return), with pressure gauge connection |
Engineering Features & Advantages
- Precision Performance: The pressure control valve — pressure reducing valve (3-way, direct-operated, spool type) delivers precise, repeatable performance with low hysteresis and stable control across the full working range.
- Industrial Reliability: Designed for dependable long-term operation in demanding industrial environments, with quality bearings and sealing systems ensuring extended maintenance intervals.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original REXROTH OEM standards, ensuring drop-in replacement without modification to existing manifolds or piping.
- Rated Capability: Rated for pressure ratings up to 43 bar and flow rates up to 60 L/min, supporting stable operation across the full working range.
Typical Industrial Applications
The valve is used extensively in industrial hydraulic systems where a sub-circuit must operate at a lower, precisely controlled pressure than the main system pressure, such as clamping circuits, pilot control circuits, and secondary actuator loops.
PRODUCT IMAGES
REXROTH ZDR 6 DP2-43/25YM / R900483785 Pressure Reducing Valve
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Shop the genuine REXROTH ZDR 6 DP2-43/25YM / R900483785 Pressure Reducing Valve. This Germany-made hydraulic component features a direct-operated design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.
