Rexroth DBDS Relief Valve | DBDS10G | DBDS20K | R900424269 | Direct Operated Hydraulic Valve | 200-315 Bar

DBDS Series Direct-Operated Hydraulic Relief Valves

Product Overview: The DBDS series is a high-performance, direct-operated pressure relief valve designed for pressure limitation and safety protection within hydraulic systems. Unlike pilot-operated valves, the DBDS series is renowned for its ultra-fast opening/closing response and simplistic internal structure, making it the premier choice for suppressing instantaneous high-pressure pulses. The series supports multiple adjustment methods (e.g., handwheel, adjustment bolt with cap) and mounting types, including subplate mounting (G), cartridge type (K), and threaded connection (P). It is extensively used in power units, machine tool controls, and mobile hydraulics.

Featured models include: DBDS10G/10/5/2HH (Material No: R900424269) and DBDS20K1X/200.

Key Technical Advantages:

• Instantaneous Overpressure Protection: The direct-acting design allows the valve to open immediately when pressure exceeds the setpoint, effectively shielding expensive pumps and actuators from pressure spikes.

• High-Pressure Reliability: Rated for pressures up to 31.5 MPa (315 bar), with specialized versions capable of reaching up to 63 MPa.

• Versatile Mounting Options: The DBDS…K models utilize a screw-in cartridge structure for compact manifold integration, while DBDS…G models are designed for standard subplate mounting.

• Accurate Part Number Tracking: Strictly adheres to original material standards (e.g., R900424269), ensuring 100% interchangeability of parameters and dimensions.

Detailed Specifications & Parameters:

• Featured Model Matrix:

  • DBDS10G/10/5/2HH (R900424269): Size 10, subplate mounting, handwheel adjustment, optimized pressure stage setting.

  • DBDS20K1X/200: Size 20, screw-in cartridge design, 1X design series, max pressure setting 200 bar.

• Core Technical Specs:

  • Mounting Standard: ISO 6264 (for subplate versions).

  • Adjustment Types: Handwheel, or adjustment bolt with hexagon and protective cap.

  • Fluid Compatibility: Mineral oil (HLP) or phosphate esters (HFD-R).

  • Pressure Ranges: 50, 100, 200, 315, 400, 630 bar options.