Product Overview
The Rexroth DBDS 6 K1X/50 (Material No. R900423727) is a direct operated pressure relief valve from the proven DBDS series, designed for reliable pressure limitation and system protection in industrial hydraulic circuits. As a direct acting poppet-type valve, it responds instantaneously to pressure surges without pilot-stage lag, making it ideal for safety-critical and high-dynamic applications. The valve limits the operating pressure of a hydraulic system by discharging excess flow to the tank when the set pressure is reached, thereby protecting pumps, cylinders, and downstream components from overpressure damage. Its compact size 6 (NG6 / CETOP 3) mounting pattern and threaded cartridge-style body allow flexible integration into manifold blocks, power units, and custom hydraulic assemblies.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Direct Operated Pressure Relief Valve (Pressure Control Valve) |
| Model Designation | DBDS 6 K1X/50 |
| Material Number | R900423727 |
| Nominal Size | NG6 (CETOP 3 / ISO 4401 size 6) |
| Pressure Setting | 50 bar (adjustable via set screw) |
| Operating Pressure | Standard Industrial Grade (Up to rated bar) |
| Actuation Type | Direct acting, spring-loaded poppet |
| Mounting & Connection | Standard ISO / Manufacturer Interface (NG6 subplate or manifold mounting) |
| Adjustment | Set screw with lock nut, tamper-resistant option |
| Hydraulic Fluid | Mineral oil based hydraulic fluids (HL, HLP, HLP-D) |
Engineering Features & Advantages
- Precision Performance: Direct operated poppet design delivers fast, repeatable pressure response with minimal hysteresis and excellent pressure override characteristics, ensuring accurate system protection across the full flow range.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with hardened and lapped sealing elements that resist contamination and wear for long service life.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original OEM standards, including the NG6 mounting interface and R900423727 material number, ensuring drop-in replacement without modification.
- Compact Cartridge Construction: Space-saving threaded body simplifies installation into manifold blocks and reduces overall system footprint.
- Direct Fit Replacement: Precision-manufactured to original Rexroth specifications for direct replacement, minimising downtime and eliminating fitment issues.
Typical Industrial Applications
As a direct acting poppet-type valve, it responds instantaneously to pressure surges without pilot-stage lag, making it ideal for safety-critical and high-dynamic applications.
PRODUCT IMAGES
Rexroth DBDS 6 K1X/50 / R900423727 Direct Operated Pressure Relief Valve
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- 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 DBDS 6 K1X/50 / R900423727 Pressure Relief Valve. This Germany-made 50 bar hydraulic component features a direct-operated poppet design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.