Product Overview
The Rexroth ZDR 10 DA2-55/150Y (Material No. R900410884) is a direct-operated, pilot-assisted pressure reducing valve from the proven ZDR 10 series, engineered for precise secondary pressure regulation in industrial hydraulic systems. Manufactured by Bosch Rexroth, this valve maintains a constant reduced outlet pressure regardless of fluctuations in the primary (inlet) pressure or changes in flow demand. The “DA2” designation indicates a direct-operated pressure reducing cartridge with a specific adjustment and spring range, while the “55” denotes the pressure rating and the “150Y” specifies the adjustment type and porting configuration. The valve operates on a balanced spool principle: when outlet pressure exceeds the set value, the spool shifts to throttle the inlet flow, thereby holding downstream pressure at the desired level. This makes the ZDR 10 DA2-55/150Y an essential component for protecting downstream actuators, clamping circuits, and pilot lines from overpressure in demanding industrial environments.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Pressure Control Valve (Pressure Reducing Valve) |
| Model Designation | ZDR 10 DA2-55/150Y |
| Material Number | R900410884 |
| Operating Pressure | Up to 150 bar (secondary reduced pressure range) |
| Nominal Size | NG10 (DIN 24340 / ISO 4401 size 10) |
| Mounting & Connection | Subplate mounting, ISO 4401-05 / CETOP 5 interface |
| Adjustment Type | “Y” – hand knob with locknut (standard adjustment) |
| Seal Material | NBR (nitrile rubber), suitable for mineral oil-based hydraulic fluids |
Engineering Features & Advantages
- Precision Pressure Regulation: The direct-operated spool design delivers accurate and repeatable secondary pressure control, minimizing hysteresis and ensuring stable downstream pressure even under varying flow conditions.
- Balanced Spool Construction: The balanced spool compensates for inlet pressure fluctuations, allowing the valve to maintain the set reduced pressure independent of primary pressure changes.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with robust housing and wear-resistant spool/bore pairing for long service life.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original Rexroth ZDR 10 series valves and OEM standards, ensuring drop-in installation without modification.
- Versatile Adjustment: The “Y” adjustment option provides precise manual setting with a locknut to secure the desired pressure against vibration and accidental adjustment.
Typical Industrial Applications
The Rexroth ZDR 10 DA2-55/150Y pressure reducing valve is widely deployed in heavy industrial scenarios including plastic injection molding machines (for clamping and injection pressure control
PRODUCT IMAGES
REXROTH ZDR 10 DA2-55/150Y / R900410884 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 ZDR 10 DA2-55/150Y / R900410884 Pressure Relief Valve. This German-made hydraulic component features a direct-acting design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.
