Product Overview
The Rexroth ZDR6 DA2-4X/150Y (Material No. R900410849) is a direct-operated, three-way pressure reducing valve from the proven ZDR6 series, size 6 (NG6 / CETOP 3). Manufactured by Bosch Rexroth, this valve is designed to reduce a system pressure to a lower, constant outlet pressure regardless of fluctuations in the primary circuit or changes in flow demand. The “DA2” designation indicates a direct-operated pressure reducing valve with a pressure rating of 150 bar and a specific adjustment and spring configuration, while the “4X” denotes the fourth-generation series with standardized, field-proven internal geometry. The “Y” suffix specifies the external drain and adjustment variant. This valve is a critical pressure control component in industrial hydraulic systems where a sub-circuit must operate at a stable, reduced pressure independent of the main system pressure.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Hydraulic Valve – Pressure Control Valve (Pressure Reducing Valve) |
| Model Designation | ZDR6 DA2-4X/150Y / R900410849 |
| Manufacturer | Bosch Rexroth |
| Valve Size | NG6 / CETOP 3 / ISO 4401-03 |
| Operating Pressure | Up to 150 bar (secondary pressure setting range) |
| Actuation Type | Direct-operated, mechanical spring adjustment |
| Mounting & Connection | Subplate mounting, ISO 4401-03-02-0-05 interface |
| Drain Configuration | External drain (Y variant) |
| Adjustment Element | Hexagon socket with locknut (standard) |
| Seal Material | NBR (Buna-N), suitable for mineral oil based hydraulic fluids |
| Fluid Temperature Range | -20 °C to +80 °C (standard NBR seals) |
| Viscosity Range | 10 to 500 mm²/s (cSt), recommended 16–36 mm²/s |
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: Constructed for continuous duty with durable, corrosion-resistant materials and proven engineering for maximum system uptime.
- 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 150 bar, supporting stable operation across the full working range.
Typical Industrial Applications
This valve is a critical pressure control component in industrial hydraulic systems where a sub-circuit must operate at a stable, reduced pressure independent of the main system pressure.
PRODUCT IMAGES
REXROTH ZDR6 DA2-4X/150Y / R900410849 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 ZDR6 DA2-4X/150Y / R900410849 Pressure Reducing Valve. This German-made hydraulic component features a direct-acting design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.
