Product Overview
The Rexroth ZDR 6 DB2-45/210YM (Material Number R900463269) is a direct-operated, pilot-assisted pressure reducing valve designed for precise secondary circuit pressure regulation in industrial hydraulic systems. Part of the proven Rexroth ZDR 6 series, this valve maintains a constant reduced outlet pressure regardless of fluctuations in the primary system pressure or changes in flow demand. The DB2 designation indicates a pressure reducing function with an integrated check valve for free reverse flow, allowing unrestricted return flow from the secondary circuit back to the primary side. With a pressure rating of 210 bar and a nominal flow capacity of up to 45 L/min, this valve is engineered for reliable, repeatable pressure control in demanding industrial environments. The YM suffix denotes a specific adjustment and sealing configuration, ensuring compatibility with standard industrial hydraulic fluids and operating conditions.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Pressure Control Valve — Pressure Reducing Valve |
| Model Designation | ZDR 6 DB2-45/210YM |
| Material Number | R900463269 |
| Operating Pressure | Up to 210 bar (inlet); reduced outlet pressure adjustable |
| Nominal Flow Rate | Up to 45 L/min |
| Mounting & Connection | Subplate mounting, ISO 4401-03 (NG6 / CETOP 3) interface |
| Adjustment Type | Manual adjustment via set screw with locknut |
| Reverse Flow | Integrated check valve for free return flow (DB2 function) |
Engineering Features & Advantages
- Precision Pressure Regulation: Direct-operated spool design delivers accurate and repeatable reduced pressure control, maintaining outlet pressure stability even under varying inlet pressure and flow conditions.
- Integrated Check Valve (DB2 Function): Allows unrestricted reverse flow from the secondary circuit to the primary side without affecting the pressure reducing function, simplifying circuit design and reducing component count.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with robust construction and high-quality sealing materials ensuring long service life and minimal maintenance.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original Rexroth OEM standards, ensuring drop-in replacement without modification to existing manifolds or piping.
- Compact Subplate Design: ISO 4401-03 (NG6) mounting pattern enables space-saving installation in dense hydraulic power units and manifold blocks.
Typical Industrial Applications
This Rexroth ZDR 6 DB2-45/210YM pressure reducing valve is widely deployed in hydraulic systems requiring reliable secondary pressure control. Typical applications include plastic injection molding machines where precise clamping and injection pressures must be maintained independently of the main system pressure; metallurgical presses and rolling mills requiring stable actuator force control; CNC machine tools and machining centers with multiple pressure zones
PRODUCT IMAGES
REXROTH ZDR 6 DB2-45/210YM / R900463269 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 6 DB2-45/210YM / R900463269 Pressure Relief Valve. This Germany-made hydraulic component features a direct-acting poppet design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.
