Product Overview
The Rexroth DR10-5-5X/200Y (Material No. R900503741) is a direct-operated, pilot-assisted pressure reducing valve from the proven Rexroth DR series, designed to maintain a constant reduced outlet pressure regardless of fluctuations in inlet pressure or changes in flow demand. As a normally open 2-way pressure control valve, it reduces a higher system pressure to a stable, preset secondary pressure at port A, making it an essential regulating component in industrial hydraulic circuits where downstream actuators, pilot lines, or clamping functions require a controlled pressure level below main system pressure. The “200” designation indicates a pressure adjustment range up to 200 bar, while the “Y” suffix denotes the standard adjustment type (adjustment screw with hexagon and lock nut). The valve is engineered for panel or manifold mounting in accordance with ISO 5781 interface standards and is widely deployed in demanding stationary and mobile hydraulic systems.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Pressure Reducing Valve (Pressure Control Valve) |
| Model Designation | DR10-5-5X/200Y |
| Material Number | R900503741 |
| Nominal Size | NG10 (Size 10) |
| Pressure Adjustment Range | Up to 200 bar (secondary pressure setting) |
| Operating Pressure | Standard Industrial Grade (up to 315 bar inlet, dependent on circuit) |
| Adjustment Type | “Y” — Adjustment screw with hexagon and lock nut |
| Mounting & Connection | Subplate mounting per ISO 5781 / Manufacturer Interface |
| Hydraulic Fluid | Mineral oil based hydraulic fluids (HL, HLP per DIN 51524) |
Engineering Features & Advantages
- Precision Pressure Regulation: The direct-operated spool design delivers accurate, repeatable secondary pressure control with minimal hysteresis, ensuring stable operation of downstream actuators and pilot circuits.
- Normally Open Configuration: In the de-energized or unloaded state, the valve remains open, allowing full flow passage until the set pressure is reached, providing fail-safe behavior in pressure-reducing circuits.
- Robust Spool & Sleeve Assembly: Hardened, precision-lapped spool and sleeve pairing resists contamination-induced wear and maintains tight pressure regulation over extended service intervals.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, including high cycle rates, elevated fluid temperatures, and demanding duty cycles.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original REXROTH OEM standards, ensuring drop-in replacement without modification to existing manifolds or piping.
Typical Industrial Applications
The valve is engineered for panel or manifold mounting in accordance with ISO 5781 interface standards and is widely deployed in demanding stationary and mobile hydraulic systems.
PRODUCT IMAGES

REXROTH DR10-5-5X/200Y / R900503741 Pressure Reducing Valve
⚡ Emergency Plant Maintenance & Ready-to-Ship Notice:
- Authentic & Fully Tested: 100% bench tested for hydraulic response, pressure rating, and null-bias stability before dispatch.
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- Peace of Mind: Covered by our 12-Month Replacement Warranty.
Shop the genuine REXROTH DR10-5-5X/200Y Pressure Relief Valve. This Germany-made hydraulic component features a pilot-operated design, delivering leak-free, reliable pressure control for heavy-duty industrial systems.