Rexroth DBW Relief Valve | DBW-10B2 DBW-20B2 | Pilot Operated Solenoid Valve | 315 Bar DC24V

DBW Series Pilot-Operated Solenoid Relief Valves

Product Overview: The DBW series is a high-performance pilot-operated relief valve that combines precision pressure regulation with remote unloading capabilities. By integrating a solenoid directional valve on the pilot stage, the DBW series not only sets the maximum system pressure but also allows for no-load unloading via electrical signals without altering the pressure setting. This is essential for injection molding machines, hydraulic balers, and large hydraulic power units to significantly reduce energy consumption and prevent oil overheating.

Featured models: DBW-10B2-52/315-6EG24N9K4 and DBW-20B2-52/315-6EG24N9K4.

Key Technical Advantages:

• Efficient Unloading Control: Utilizes the solenoid valve to control the pilot circuit for remote system starting, stopping, or pressure switching.

• High-Pressure Durability: Engineered for heavy-duty 31.5 MPa (315 bar) applications, featuring a wear-resistant main spool for extended service life.

• Comprehensive Sizing: Available in Size 10 (NG10) and Size 20 (NG20) to meet the flow requirements of various system levels.

• Low Noise Characteristics: Optimized pilot flow paths effectively suppress vibration and shrieking noise during high-pressure relief.

• EG24 DC Power: Equipped with a high-performance 24V DC solenoid, ensuring rapid response and including a manual override for easier commissioning.

Detailed Specifications & Parameters:

• Featured Model Matrix:

  • DBW-10B2: Size 10, subplate mounting, with solenoid pilot stage.

  • DBW-20B2: Size 20, high-flow specification for heavy industrial use.

  • -52/315: Series 52 design, maximum pressure setting 315 bar.

  • 6EG24N9K4: Equipped with 24V DC solenoid and DIN 43650 standard connector.

• Core Technical Specs:

  • Max Operating Pressure: 31.5 MPa (315 bar).

  • Max Flow Capacity: DBW-10 (up to 250 L/min); DBW-20 (up to 500 L/min).

  • Mounting Interface: Complies with ISO 6264 standards.

  • Pilot Configuration: Supports internal/external pilot and internal/external drain mode transitions.