Modular Valves | MR-03P-3-40 | MC-02PB-05-65 | MC-03P-05-40 | MC-02AB-05-55 Relief Valve

MC & MR Series Modular Pressure Relief & Check Valves

Product Overview:

This series of modular valves is specifically engineered for Yuken-spec hydraulic systems, covering core functions such as pressure control, check flow, and safety relief. In 2026, across high-precision machine tools, injection molding machinery, and automated hydraulic stations, these models—including MR-03P and MC-02PB—utilize a stackable design to simplify system piping, maximize space efficiency, and effectively reduce potential leakage risks.

Core Featured Models:

• MR-03P-3-40: Size 03 Modular Pressure Reducing Valve.

• MC-02PB-05-65: Size 02 Modular Check Valve (B-Port).

• MC-03P-05-40: Size 03 Modular Check Valve (P-Port).

• MC-02AB-05-55: Size 02 Modular Check Valve (A&B Ports).

Key Technical Advantages:

• Modular Stack Design: Eliminates the need for piping by installing directly beneath solenoid directional valves, significantly reducing system footprint and assembly costs.

• Precise Pressure Regulation: The MR-03P series offers exceptional pressure adjustment linearity, ensuring downstream pressure remains constant under dynamic loads to protect actuators from surges.

• Zero-Leakage Check Performance: The MC series features hardened poppets and seats, guaranteeing zero reverse leakage at 05 series pressure ratings, effectively maintaining cylinder pressure.

• High Durability & Service Life: Bodies are cast from high-grade iron, designed to meet 2026 industrial pressure standards. Internal components are precision ground and heat-treated for stability across millions of cycles.

• Standardized Interchangeability: Strictly adheres to ISO 4401 mounting patterns, allowing direct replacement of major brand modular valves, making it ideal for reducing maintenance downtime.

Detailed Specifications:

• Frame Sizes: 02 (1/4″), 03 (3/8″).

• Maximum Pressure: Up to $25 \sim 31.5 \text{ MPa}$ (depending on model suffix).

• Compatible Mediums: Mineral oils, phosphate ester fluids, and synthetic lubricants.

• Adjustment Range: Versatile pressure settings (defined by -3/-05 parameters) to meet diverse industrial needs.