Rexroth DR Series Reducing Valve | DR10-5X | DR20 | DR30 | DR10-4-50/200YM

Rexroth DR Series Pilot-Operated Pressure Reducing Valves

Product Overview: The Rexroth DR Series is an industrial-grade, pilot-operated pressure reducing valve designed for precision pressure control in hydraulic branch circuits. It functions to lower a high primary pressure to a stable secondary setting, which remains constant despite fluctuations in the inlet pressure. Covering sizes from NG10 (Size 10) to NG30 (Size 30), the DR series is a staple in plastics machinery, metallurgical equipment, and automated machine tools. Its pilot-controlled architecture ensures exceptional regulation accuracy even under high-flow conditions.

Featured models on this page: DR10, DR20, DR30, DR10-55X/315Y, and the check-valve equipped DR10-4-50/200YM.

Key Technical Advantages:

• Superior Pilot Regulation: The pilot-operated design offers a broad adjustment range and high repeatability, capable of handling large pressure differentials.

• Full Size Range: Available in NG10, NG20, and NG30, catering to flow requirements from small power units to heavy-duty industrial systems.

• Free Reverse Flow: Models with the YM suffix feature an integrated check valve, allowing oil to bypass the reducing mechanism during the reverse stroke of the actuator.

• External Drain (Y): The independent drain port design ensures that the pressure reduction is not influenced by back-pressure in the return line.

Detailed Specifications & Parameters:

• Featured Model Matrix:

  • DR10-55X/315Y: Size 10, Design Series 55X, max setting 315 Bar, with external drain (Y).

  • DR10-4-50/200YM: Size 10, Design Series 50, pressure limit 200 Bar, integrated check valve (YM).

  • DR20 / DR30: Large nominal sizes for high-flow applications (up to 450 L/min and above).

• Core Technical Specs:

  • Max Operating Pressure: Rated up to 315 – 350 Bar.

  • Pressure Stages: Available with springs for 50, 100, 200, and 315 Bar.

  • Mounting Pattern: Subplate mounting to ISO 5781.

  • Seals: Standard NBR; FKM (Viton) optional for high-temp fluids.