Yuken Type Modular Relief Valve | MRP-01 | MRP-03 | MRP-06 | MRA-06 | Pressure Control Valve

MRP & MRA Series Modular Relief Valves (NG6, NG10, NG25)

Product Overview: The MRP and MRA series are modular pressure control valves designed to simplify hydraulic system plumbing. These valves are stacked directly beneath the directional control valves, enabling pressure regulation for the P-line (MRP) or A-line (MRA) without the need for additional piping. This modular approach not only drastically reduces the footprint of the hydraulic power unit but also enhances system reliability by minimizing potential leak points. From the compact Size 01 to the high-flow Size 06, this series provides smooth and stable pressure regulation.

Featured models include: MRP-01-B-70, MRP-03-B-30, MRP-06-B-70, MRP-06-C-70, and MRA-06-C-70.

Key Technical Advantages:

• Space-Saving Architecture: The modular design allows for complex hydraulic circuits within a minimal envelope, significantly reducing assembly time.

• Precise Pressure Ranges:

  • B-Range: Optimized for low-to-medium pressure, offering smooth adjustment sensitivity.

  • C-Range: Designed for high-pressure applications, ensuring safe relief under maximum load conditions.

• High-Pressure Durability: Constructed from high-strength ductile iron, capable of sustaining instantaneous shock pressures up to 31.5 MPa.

• User-Friendly Adjustment: Equipped with an adjustment knob and locking nut to ensure set pressures remain constant even in high-vibration environments.

Detailed Specifications & Parameters:

• Featured Model Matrix:

  • MRP-01-B-70: Size 6 (NG6), P-line relief, Pressure range B, Design 70.

  • MRP-03-B-30: Size 10 (NG10), P-line relief, Design 30.

  • MRP-06-B/C-70: Size 25 (NG25), high-flow capacity, available in B/C pressure ranges.

  • MRA-06-C-70: Size 25 (NG25), specifically for pressure limiting on the A-line.

• Core Technical Specs:

  • Nominal Size: 01 (Size 6) / 03 (Size 10) / 06 (Size 25).

  • Max Operating Pressure: Up to 25 – 31.5 MPa (250 – 315 bar).

  • Max Flow Rate: 01 (35 L/min) / 03 (70 L/min) / 06 (125-200 L/min).

  • Adjustment Type: Manual knob with locking mechanism.