Product Overview
The Rexroth ZDR6DA2-46/75Y (Material Number R900410813) is a direct-operated, three-way pressure reducing valve designed for precise secondary circuit pressure regulation in industrial hydraulic systems. Manufactured by Bosch Rexroth, this valve belongs to the proven ZDR6 series, which is widely recognized for its compact sandwich plate design, reliable pressure control, and long service life. The valve reduces a higher inlet pressure to a constant, lower outlet pressure regardless of fluctuations in the primary pressure or changes in flow demand. The “DA” designation indicates a three-way pressure reducing function with pressure relief from the secondary side back to tank, ensuring accurate pressure maintenance even under varying load conditions. The “2” denotes the pressure adjustment spring range, and the “46” specifies the nominal size (NG6 / CETOP 3). The “75Y” suffix indicates a maximum secondary pressure setting of 75 bar with a specific adjustment configuration. This valve is engineered for direct sandwich mounting onto standard ISO 4401-03 (CETOP 3) subplates or manifolds, making it an ideal drop-in solution for a wide range of industrial hydraulic power units and control blocks.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Pressure Reducing Valve (Three-Way, Direct-Operated) |
| Model Designation | ZDR6DA2-46/75Y / R900410813 |
| Manufacturer | Bosch Rexroth |
| Nominal Size | NG6 / CETOP 3 / ISO 4401-03 |
| Operating Pressure | Up to 315 bar (inlet / primary side) |
| Secondary Pressure Range | Up to 75 bar (adjustable via spring) |
| Max. Flow Rate | Up to 60 L/min (dependent on circuit configuration) |
| Mounting & Connection | Sandwich plate, ISO 4401-03 / CETOP 3 interface |
| Adjustment Type | Mechanical adjustment (spindle with locknut) |
| Hydraulic Fluid | Mineral oil based hydraulic fluid (HL, HLP per DIN 51524) |
| Fluid Temperature Range | -20°C to +80°C (standard seals) |
Engineering Features & Advantages
- Precision Performance: The pressure reducing valve (three-way, direct-operated) delivers precise, repeatable performance with low hysteresis and stable control across the full working range.
- Industrial Reliability: Designed for dependable long-term operation in demanding industrial environments, with quality bearings and sealing systems ensuring extended maintenance intervals.
- Direct Fit Replacement: Precision-manufactured to original REXROTH specifications for direct replacement, minimising downtime and eliminating fitment issues.
- Rated Capability: Rated for pressure ratings up to 315 bar and flow rates up to 60 L/min, supporting stable operation across the full working range.
Typical Industrial Applications
This valve is engineered for direct sandwich mounting onto standard ISO 4401-03 (CETOP 3) subplates or manifolds, making it an ideal drop-in solution for a wide range of industrial hydraulic power units and control blocks.
PRODUCT IMAGES
REXROTH ZDR6DA2-46/75Y / R900410813 Pressure Reducing Valve
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- 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 ZDR6DA2-46/75Y / R900410813 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.