Product Overview
The Rexroth ZDR10DA2-5X/75Y (Material No. R900438008) is a direct-operated, pilot-assisted pressure reducing valve from the proven ZDR10 series, designed to maintain a constant reduced outlet pressure regardless of fluctuations in the inlet pressure or changes in flow demand. As a member of the Rexroth 5X generation (component series 50 to 59), this valve is engineered for panel or manifold mounting in industrial hydraulic power units and sub-circuits where a stable, lower secondary pressure must be derived from a higher primary system pressure. The “DA” designation indicates a direct-operated pressure reducing function with a pressure relief capability on the secondary side, while the “75Y” code specifies a 75 bar pressure adjustment range with a specific adjustment and spring configuration. With a nominal size of NG10 (Size 10) and a maximum flow capacity of approximately 80 L/min, the ZDR10DA2-5X/75Y is a compact, high-response solution for precise pressure control in demanding hydraulic circuits.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Hydraulic Valve — Pressure Control Valve (Pressure Reducing Valve) |
| Model Designation | ZDR10DA2-5X/75Y (R900438008) |
| Manufacturer | Bosch Rexroth |
| Nominal Size | NG10 (Size 10) |
| Operating Pressure | Up to 315 bar (inlet); reduced outlet pressure adjustable up to 75 bar |
| Pressure Adjustment Range | 75 bar (secondary pressure setting) |
| Maximum Flow Rate | Approx. 80 L/min |
| Mounting & Connection | Subplate mounting, ISO 4401-05 / CETOP 5 / NG10 interface |
| Adjustment Type | Manual adjustment (spindle with hexagon and locknut) |
| Hydraulic Fluid | Mineral oil based hydraulic fluid (HL, HLP, HLP-D, HVLP) per DIN 51524 |
| Fluid Temperature Range | -20 °C to +80 °C (standard seals) |
Engineering Features & Advantages
- Precision Performance: The hydraulic valve — pressure control valve (pressure reducing valve) delivers precise, repeatable performance with low hysteresis and stable control across the full working range.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with robust construction and wear-resistant internal components for extended service life.
- 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 315 bar and flow rates up to 80 L/min, supporting stable operation across the full working range.
Typical Industrial Applications
As a member of the Rexroth 5X generation (component series 50 to 59), this valve is engineered for panel or manifold mounting in industrial hydraulic power units and sub-circuits where a stable, lower secondary pressure must be derived from a higher primary system pressure.
PRODUCT IMAGES
REXROTH ZDR10DA2-5X/75Y / R900438008 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.
- Fast Dispatch: In-stock units ready for same-day dispatch via DHL / FedEx Express directly to your plant.
- Pre-Shipment Verification: High-definition photos, video testing runs, and serial number verification provided prior to shipment.
- Peace of Mind: Covered by our 12-Month Replacement Warranty.
Shop the genuine REXROTH ZDR10DA2-5X/75Y / R900438008 Pressure Reducing Valve. This German-made hydraulic component features a direct-acting design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.
