Yuken CRG Series Check Valve | CRG-03 CRG-06 CRG-10 | Directional Control Valve

CRG Series Sub-plate Mounted Hydraulic Directional Check Valves

Product Overview: The CRG Series Check Valve is a high-performance, sub-plate-mounted directional control valve designed for industrial hydraulic systems. Known for its compact architecture, minimal pressure drop, and superior sealing under high-pressure conditions, this series covers the complete spectrum from CRG-03 (NG10) to CRG-10 (NG32), with cracking pressure options such as 04, 35, and 50.

Constructed with high-strength materials and precision poppet designs, the CRG series ensures unidirectional flow and zero internal leakage during shut-off. Its standardized mounting interface makes it the premier choice for large injection molding machines, hydraulic presses, machine tool power units, and automated production lines to protect pumps and maintain system pressure.

Key Technical Advantages:

• Standardized Sub-plate Mounting: Follows industry-standard mounting patterns for easy integration onto manifolds, significantly reducing plumbing complexity.

• Versatile Cracking Pressures: Available in multiple spring tensions from 0.04 MPa (04) up to 0.5 MPa (50) to suit specific circuit response requirements.

• High-Flow & High-Pressure Capability: Optimized internal flow paths maintain low power loss even at rated flow capacities.

• Elite Sealing Integrity: Hardened spools and precision-ground seats guarantee long-term zero-leakage performance under operating pressures up to 31.5 MPa.

Detailed Specifications & Parameters:

• Core Series: CRG Series Sub-plate Mounted Check Valves.

• Featured Model Matrix: CRG-03, CRG-06, CRG-10, CRG-03-04-50, CRG-06-35-50, CRG-10-50-50.

• Core Performance Specs:

  • Nominal Sizes: 03 (NG10), 06 (NG25), 10 (NG32).

  • Max Operating Pressure: Rated for heavy-duty operations up to 25 MPa (250 Bar) or 31.5 MPa (315 Bar).

  • Cracking Pressure Codes (MPa): 04 (0.04 MPa), 35 (0.35 MPa), 50 (0.5 MPa).

  • Design Series: 50 Series.

  • Flow Capacity: 03 (40 L/min), 06 (125 L/min), 10 (250 L/min).