Yuken Type Modular Pilot Check Valve | MPW-01 MPA-03 MPB-06 | Sandwich Plate

Yuken Type MPW, MPA & MPB Series Modular Pilot Check Valves

Product Overview: The Yuken Type Modular Pilot Operated Check Valve series is a premier solution for load retention and position locking in integrated hydraulic systems. Featuring a compact sandwich plate design that complies with ISO 4401 standards, these valves are stacked directly beneath directional control valves, eliminating the need for additional external piping.

Depending on the port control requirements, three core configurations are available: MPW (Dual A&B ports), MPA (Port A only), and MPB (Port B only). This category covers a full range of sizes from the compact 01 (NG6) to the heavy-duty 06 (NG22), including specific models like MPW-01-2-4-40 and MPB-03-2-20. They are widely utilized in injection molding machines, hydraulic presses, and automated machine tool clamping systems.

Key Technical Advantages:

• Zero-Leakage Integrity: Precision-ground poppets and seats guarantee zero internal leakage during extended locking periods, effectively eliminating actuator drift.

• Space-Saving Integration: The modular sandwich design eliminates external connecting pipes, reducing potential leak points and significantly minimizing the footprint of the hydraulic power unit.

• Variable Cracking Pressures: Multiple spring options (e.g., codes -2, -5) are available to match diverse system loads and dynamic response requirements.

• Heavy-Duty Durability: Rated for operating pressures up to 25-31.5 MPa, engineered to withstand hydraulic shocks from high-frequency switching.

Detailed Specifications & Parameters:

• Core Series: Yuken Type Modular Pilot Operated Check Valves.

• Featured Model Matrix: MPW-01-2-40, MPA-02-B, MPB-03-2-20, MSP-01-50, MPB-06S-2-Y-1015.

• Core Performance Specs:

  • Nominal Sizes: 01 (NG6), 03 (NG10), 04 (NG16), 06 (NG22).

  • Control Ports: W (Dual A&B), A (Port A), B (Port B).

  • Cracking Pressure: 2 (0.2 MPa), 4 (0.4 MPa).

  • Max Operating Pressure: Rated at 25 MPa / 31.5 MPa (3625-4500 PSI).

  • Design Sequence: 20, 40, 50 series.